Details of the Researcher

PHOTO

Hidemasa Takana
Section
Institute of Fluid Science
Job title
Professor
Degree
  • 博士(工学)(東京工業大学)

  • 修士(工学)(東京工業大学)

Committee Memberships 18

  • 日本機械学会 流体工学部門 運営委員

    2022/04 - Present

  • 日本機械学会 A-TS 05-24「プラズマアクチュエータ研究会」委員

    2015/04 - Present

  • 日本機械学会 A-TS 05-25 「機能性流体工学研究会」主査

    2021/04 - 2026/03

  • 日本混相流学会 理事

    2022/08 - 2024/08

  • 電気学会 BFTE1047「電磁界応答流体によるエネルギー・環境技術の新展開に関する調査専門委員会」幹事

    2019/07 - 2022/06

  • 日本フルードパワーシステム学会 機能性流体フルードパワーシステムに関する研究委員会 委員

    2019/04 - 2022/03

  • 日本機械学会 熱工学部門運営委員会 委員

    2019/04 - 2020/03

  • 日本機械学会 A-TS 05-22「複雑流体研究会」委員

    2015/04 - 2020/03

  • 電気学会 BFTE1039「環境負荷の低減を目指したMHD発電技術と応用に関する調査専門委員会」委員

    2016/07 - 2019/06

  • 日本フルードパワーシステム学会機能性流体テクノロジーの次世代FPSへの展開に関する研究委員会 委員

    2015/04 - 2018/03

  • 日本混相流学会 評議員

    2016/08 - 2017/07

  • 日本混相流学会サステナブル異分野融合型混相流に関する研究分科会 委員

    2010/07 - 2017/07

  • 日本機械学会 交通・物流部門代議員

    2016/04 - 2017/03

  • 電気学会MHD技術応用調査専門委員会 委員

    2010/06 - 2016/05

  • 日本機械学会 産業・化学機械と安全部門代議員

    2014/04 - 2016/03

  • 日本フルードパワーシステム学会機能性流体との融合化によるフルードパワーシステムの新展開に関する研究委員会 委員

    2013/06 - 2015/05

  • 電気学会「界面プラズマの実験・計算モデル標準化調査専門委員会」 委員

    2011/06 - 2014/05

  • 日本機械学会「大気圧プラズマ流による人間環境保全技術に関する研究分科会」 委員

    2007/04 - 2010/03

Show all ︎Show first 5

Professional Memberships 5

  • 静電気学会

  • 日本溶射学会

  • The Institute of Electrical Engineers of Japan

  • The Japanese Society for Multiphase Flow

  • Japan Society of Mechanical Engineering

Research Areas 4

  • Environmental science/Agricultural science / Recycling systems and society / CO2 separation and absorption

  • Nanotechnology/Materials / Polymer materials / Cellulose nano fiber

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Fluid engineering /

  • Energy / Basic plasma science /

Awards 25

  1. Green Chemistry Award

    2024/11 The Royal Society of Chemistry Enhancement of CO2 Absorption by Counter Ionic Liquid Electrospray

  2. JSME Frontier Award 2024

    2024/11 Japan Society of Mechanical Engineers

  3. Best presentation award

    2022/11 Japan Society of Mechnical Engineering

  4. 日本機械学会 第99期流体工学部門講演会 優秀講演表彰

    2021/11 日本機械学会 セルロース分散流中のナノ繊維静電配向に関する数値シミュレーション

  5. 混相流シンポジウム2021 ベストプレゼンテーションアワード

    2021/08 日本混相流学会 高効率二酸化炭素分離吸収に向けたイオン液体静電噴霧に与えるパルス電圧印加効果

  6. 2020年度電力・エネルギー部門論文査読貢献賞

    2021/08 電気学会

  7. Technology Award

    2021/08 Japan Society of Multiphase Flow

  8. 第42回溶液化学シンポジウム 溶液化学シンポジウムポスター賞

    2019/10 溶液化学研究会 イオン液体静電噴霧による二酸化炭素分離吸収に与える環境温度依存性

  9. 自動車技術会 大学院研究奨励賞

    2019/03 自動車技術会 炭化水素燃料・空気混合気における 非平衡プラズマ着火促進に関する数 値シミュレーション

  10. 東北大学工学研究科 専攻長賞

    2019/03 東北大学

  11. 混相流シンポジウム2018 ベストプレゼンテーションアワード

    2018/08 日本混相流学会

  12. 混相流シンポジウム2017 ベストプレゼンテーションアワード

    2017/08 日本混相流学会

  13. 2016年度日本機械学会賞(論文)

    2017/04/20 日本機械学会 Nano Powder Transportation by Combining Plasma Actuation and Electrostatic Mixing in a Tube

  14. 日本設計工学会武藤栄次賞優秀学生賞

    2017/03 日本設計工学会

  15. 日本機械学会 第94期流体工学部門講演会 優秀講演表彰

    2016/11 日本機械学会 静電配向制御によるセルロース新素材創製プロセス

  16. 日本機械学会 第91期流体工学部門講演会 優秀講演表彰

    2013/11 日本機械学会 風力エネルギー高度利用のための同軸型エネルギー変換装置の開発と性能評価

  17. 2012年度日本混相流学会賞技術賞

    2013/08/10 日本混相流学会 プラズマチューブによる微粒子の搬送及び浄化技術の開発

  18. The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology, The Young Scientists' Prize

    2013/04/16 文部科学省 電場制御による微粒子流動加工の高性能化に関する研究

  19. 2012年度日本機械学会東北支部技術研究賞

    2013/03/15 日本機械学会東北支部 燃焼促進用小電力型高活性空気プラズマジェット発生装置の開発およびエンジン性能検証

  20. 可視化情報学会学会賞(映像賞)

    2012/07/24 可視化情報学会 微小気泡内ストリーマ放電の進展とマイクロバブル生成の可視化

  21. 電気学会優秀論文発表賞

    2011/03/31 電気学会 微粒子静電加速および基板形状最適化による超音速微粒子流動加工の高性能化

  22. 日本溶射学会奨励賞

    2010/07/05 日本溶射学会 コールドスプレーによるキャビティー充填加工の計算・実験統合解析

  23. 日本機械学会奨励賞

    2009/04/07 日本機械学会 計算・実験統合解析による極限環境下でのナノ・マイクロ粒子超音速流動加工プロセスの最適化の研究

  24. Physics of Welding Award

    2006/10/31 溶接学会 固液共存層を考慮した統合モデルによるアーク溶融システムの最適化

  25. Best paper award

    2005/08/09 17th International Symposium on Plasma Chemistry Computational Simulation of Arc Melting System with Complex Interactions

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Papers 387

  1. Improvement of CO2 absorption by ionic liquid electrospray Peer-reviewed

    H. Takana, K. Yamamoto, T. Makino, M. Kanakubo

    EPL (Europhysics Letters) 131 (3) 34002-34002 2021/01/03

    Publisher: IOP Publishing

    DOI: 10.1209/0295-5075/131/34002  

    eISSN: 1286-4854

  2. Field-Assisted Alignment of Cellulose Nanofibrils in a Continuous Flow-Focusing System Peer-reviewed

    Heather G. Wise, Hidemasa Takana, Fumio Ohuchi, Anthony B. Dichiara

    ACS Applied Materials & Interfaces 12 (25) 28568-28575 2020/06/24

    Publisher: American Chemical Society (ACS)

    DOI: 10.1021/acsami.0c07272  

    ISSN: 1944-8244

    eISSN: 1944-8252

  3. Numerical simulation on electrostatic alignment control of cellulose nano-fibrils in flow Peer-reviewed

    Hidemasa Takana, Mengfei Guo

    Nanotechnology 31 (20) 205602 2020/02

  4. Effect of ionic liquid on soft epoxy-amine electroactuators Peer-reviewed

    Axel Blain, Véronique Perrin, Laurence Seveyrat, Florent Dalmas, Sébastien Livi, Joël Courbon, Gildas Diguet, Hidemasa Takana, Jean-Yves Cavaillé, Gildas Coativy

    Polymer 312 127601-127601 2024/10

    Publisher: Elsevier BV

    DOI: 10.1016/j.polymer.2024.127601  

    ISSN: 0032-3861

  5. Uncovering the mystery of the vortex dynamics in a micropolar fluid with multiple magnetic field strips: A novel case study Peer-reviewed

    Shabbir Ahmad, Hidemasa Takana, Humberto Garcia Castellanos, Khursheed Muzammil, Saiful Islam, Yashar Aryanfar, Mohammad Arsalan Khan, Mohammad Mursaleen, Ahmed S. Hendy

    Case Studies in Thermal Engineering 53 103716-103716 2024/01

    Publisher: Elsevier BV

    DOI: 10.1016/j.csite.2023.103716  

    ISSN: 2214-157X

  6. Real-Time Reconstruction of Fluid Flow under Unknown Disturbance Peer-reviewed

    Kinfung Chu, Jiawei Huang, Hidemasa Takana, Yoshifumi Kitamura

    ACM Transactions on Graphics 43 (1) 1-14 2023/10/17

    Publisher: Association for Computing Machinery (ACM)

    DOI: 10.1145/3624011  

    ISSN: 0730-0301

    eISSN: 1557-7368

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    We present a framework that captures sparse Lagrangian flow information from a volume of real liquid and reconstructs its detailed kinematic information in real time. Our framework can perform flow reconstruction even when the liquid is disturbed by an object of unknown movement and shape. Through a large dataset of liquid moving under external disturbance, an agent is trained using reinforcement learning to reproduce the target flow kinematics with only the captured sparse information as inputs while remaining oblivious to the movement and the shape of the disturbance sources. To ensure that the underlying simulation model faithfully obeys physical reality, we also optimize the viscosity parameters in Smoothed Particle Hydrodynamics (SPH) using classical fluid dynamics knowledge and gradient-based optimization. By quantitatively comparing the reconstruction results against real-world and simulated ground truth, we verified that our reconstruction method is resilient to different agitation patterns.

  7. Dynamic Assembly of Strong and Conductive Carbon Nanotube/Nanocellulose Composite Filaments and Their Application in Resistive Liquid Sensing Peer-reviewed

    Heather G. Wise, Hidemasa Takana, Anthony B. Dichiara

    ACS Applied Materials & Interfaces 15 (30) 36647-36656 2023/07/12

    Publisher: American Chemical Society (ACS)

    DOI: 10.1021/acsami.3c03906  

    ISSN: 1944-8244

    eISSN: 1944-8252

  8. Experimental and Theoretical Analyses on Power Generation Characteristics of Co-axial MHD Energy Conversion Device Peer-reviewed

    IEEJ Transactions on Power and Energy 143 (7) 454-460 2023/07

  9. High-performance CO2 selective absorption by ionic liquid electrospray Invited Peer-reviewed

    Hidemasa Takana

    Journal of the Japan Fluid Power System Society 54 (6) 19-23 2023/06

  10. Thermal case study and generated vortices by dipole magnetic field in hybridized nanofluid flowing: Alternating direction implicit solution Peer-reviewed

    Yanhua Kai, Shabbir Ahmad, Hidemasa Takana, Kashif Ali, Wasim Jamshed, Mohamed R. Eid, Assmaa Abd-Elmonem, Sayed M. El Din

    Results in Physics 49 106464-106464 2023/06

    Publisher: Elsevier BV

    DOI: 10.1016/j.rinp.2023.106464  

    ISSN: 2211-3797

  11. Thermal gradient in polymeric particles during the cold spray process Peer-reviewed

    C. A. Bernard, H. Takana, G. Diguet, O. Lame, K. Ogawa, J.-Y. Cavaillé

    Computational Particle Mechanics 2023/04/11

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1007/s40571-023-00583-0  

    ISSN: 2196-4378

    eISSN: 2196-4386

  12. Role of localized magnetic field in vortex generation in tri-hybrid nanofluid flow: A numerical approach Peer-reviewed

    Shabbir Ahmad, Hidemasa Takana, Kashif Ali, Yasmeen Akhtar, Ahmed M. Hassan, Adham E. Ragab

    Nanotechnology Reviews 12 (1) 2023/01/01

    Publisher: Walter de Gruyter GmbH

    DOI: 10.1515/ntrev-2022-0561  

    eISSN: 2191-9097

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    Abstract Tri-hybrid nanofluid (THNF) can achieve a higher heat transfer rate than conventional hybrid nanofluid by combining three different nanoparticles with synergistic effects. It can have more diverse physical and thermal properties by choosing different combinations of nanoparticles. That is why it has more potential applications in various fields such as solar thermal, biomedical, and industrial processes. On the other hand, vortices are circular motions of liquid or gas that occur when there is a velocity difference. They are important for understanding how fluids mix and transport mass. They can be found in nature, such as in tornadoes and hurricanes. The aim of the current study is to mainly investigate the complex interaction of Lorentz force with the tri-hybrid nanoparticles inside a lid-driven square cavity. It can be seen that the magnetic field has caused the evolution of new vortices (which are very important while analyzing any flow model due to their importance in interpreting fluid mixing and mass transport phenomena) in the flow field, thus adding much more significance to our work. Most of the scientific literature is enriched with investigations dealing with the problems assuming a uniform magnetic field occupying the flow field, but in this research, a vertical strip of magnetism within the flow field will be introduced. It may be the first effort to interpret the role of the applied magnetic field in the formation of the new vortices in the flow field. A single-phase model is utilized to describe THNF whereas a numerical solution to the governing differential equations has been obtained by employing an algorithm based on the central difference discretization and the alternating direction implicit method. The analysis reveals that the magnetic field intensity may result in up to 13 and 119% increase in the skin friction and Nusselt number, respectively. Similarly, a remarkable change in the Nusselt number and the skin friction is also observed by raising the Reynolds number Re. Moreover, the localization or confinement of the magnetic field does not always increase or decrease the Nusselt number. Thus, it is concluded that there will be a certain width of the magnetic corridor for which the Nusselt number would be optimal. Further, the THNF containing Al2O3, Ag, and TiO2 outperforms in terms of enhancing the average Nusselt number, compared to the simple nanofluid containing the abovementioned particles.

  13. Role of charge carriers in long-term kinetics of polyurethane electroactuation Peer-reviewed

    G Coativy, K Yuse, G Diguet, V Perrin, L Seveyrat, F Dalmas, S Livi, J Courbon, H Takana, J Y Cavaillé

    Smart Materials and Structures 31 (12) 125019-125019 2022/12/01

    Publisher: IOP Publishing

    DOI: 10.1088/1361-665x/aca12e  

    ISSN: 0964-1726

    eISSN: 1361-665X

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    Abstract Previous work has shown that dielectrophoretic body forces resulting from permittivity and conductivity heterogeneities only partially contribute to the overall electromechanical deformation of segmented polyurethanes (PUs). In this work, we studied the experimental kinetics and electric current of PU thin films over a long time period (1–105 s) for different applied electric fields. Then, we thoroughly analyzed the drift behavior of electric carriers and its macroscopic effect using simple modeling and numerical simulation. The main assumption is that the macroscopic deformation results from the accumulation of electric charges near the electrodes, leading to local stretching. Assuming that the mobilities of negative and positive carriers are different, their migration towards the electrodes will have different kinetics. A preliminary simulation attempt using a single set of parameters, supports these assumptions, and leads to a correct bending amplitude and current evolution according to the applied electric field. Furthermore, the resulting compression is consistent with the observed electrostriction.

  14. Coupled discrete phase model and Eulerian wall film model for numerical simulation of respiratory droplet generation during coughing Peer-reviewed

    Hitomi Anzai, Yugo Shindo, Yutaro Kohata, Masahiro Hasegawa, Hidemasa Takana, Tetsuro Matsunaga, Takaaki Akaike, Makoto Ohta

    Scientific reports 12 (1) 14849 2022/09/01

    DOI: 10.1038/s41598-022-18788-3  

    eISSN: 2045-2322

  15. Influence of the Nozzle Inner Geometry on the Particle History During Cold Spray Process Peer-reviewed

    C. A. Bernard, H. Takana, O. Lame, K. Ogawa, J.-Y. Cavaillé

    Journal of Thermal Spray Technology 2022/05/11

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1007/s11666-022-01407-y  

    ISSN: 1059-9630

    eISSN: 1544-1016

  16. Synthesis of Carbon Materials Using Solution Plasma with Bubbles Introduced by a Homogenizer Peer-reviewed

    Sota Imaizumi, Nozomi Takeuchi, Hidemasa Takana, Oi Lun Li

    Journal of the Institution of Electrostatics Japan 46 (4) 156-161 2022/04

  17. Effect of Pulsed DC Applied Voltage on Ionic Liquid Electrospray for Efficient Selective Absorption of Carbon Dioxide Peer-reviewed

    Kazuhiko Ohtake, Hidemasa Takana

    Japanese Journal of Multiphase Flow 36 (1) 120-127 2022/03

  18. Dependence of Discharge Conditions on Characteristics of Nano-Carbon Material Synthesized by Plasma in Liquid Peer-reviewed

    Shoya Yamazaki, Nozomi Takeuchi, Hidemasa Takana

    IEEJ Transactions on Fundamentals and Materials 142 (3) 59-66 2022/03/01

    Publisher: Institute of Electrical Engineers of Japan (IEE Japan)

    DOI: 10.1541/ieejfms.142.59  

    ISSN: 0385-4205

    eISSN: 1347-5533

  19. Numerical Analysis of Thermal Flow Characteristics Inside Waste Combustion Chamber with Multiple Thermal Plasma Jets Peer-reviewed

    Hyeokjun Kang, Jeong-Hwan Oh, Daeun Choi, Hidemasa Takana, Sooseok Choi

    Applied Science and Convergence Technology 30 (6) 172-175 2021/11/30

    Publisher: The Korean Vacuum Society

    DOI: 10.5757/asct.2021.30.6.172  

    eISSN: 2288-6559

  20. In-Flight Thermal Gradient of Polymer Particles During Cold Spray Process

    Chrystelle Bernard, Hidemasa Takana, Gildas Diguet, Olivier Lame, Jean-Yves Cavaillé, dKazuhiro Ogawa

    Proceedings of the 21st International Symposium on Advanced Fluid Information (AFI2021), OS22-7 205-206 2021/11

  21. Effect of Flow-Focusing Channel Geometry on Field-Assisted Alignment of Cellulose Nanofibrils

    Hidemasa Takana, Satoru Fukumori

    Proceedings of the 21st International Symposium on Advanced Fluid Information (AFI2021), OS22-3 197-198 2021/11

  22. Simulation Study on Orientation Order Profile in Nanocellulose Mono-fiber Creation Using Flow Focusing

    Yukitaka Ishimoto, Aki Oooka, Hidemasa Takana

    Proceedings of the 21st International Symposium on Advanced Fluid Information (AFI2021), CRF-19 44-45 2021/11

  23. Numerical Analysis on Plasma Torches and Thermal Plasma Reactor for Waste treatment

    Hyeokjun Kang, Jeong-Hwan Oh, Daeun Choi, Hidemasa Takana, Sooseok Choi

    Proceedings of the 21st International Symposium on Advanced Fluid Information (AFI2021), CRF-7 15-16 2021/11

  24. Study on MHD Phenomena in Co-axial Energy Conversion Device

    Hiromichi Kobayashi, Hidemasa Takana, Ryo Sasaki, Takayasu Fujino

    Proceedings of the 21st International Symposium on Advanced Fluid Information (AFI2021), CRF-6 13-14 2021/11

  25. Analysis on Reaction Field in Cavitation Plasma for High-Speed and Eco-Friendly Synthesis of Carbon Catalysts

    Nozomi Takeuchi, Masahiro Chiba, Hidemasa Takana

    Proceedings of the 18th International Conference on Flow Dynamics (ICFD2021), CFR-5 10-11 2021/11

  26. Large Eddy Simulation of Liquid Metal Flow in Co-axial MHD Energy Conversion Device

    Ryo Sasaki, Takayasu Fujino, Hidemasa Takana, Hiromichi Kobayashi

    Proceedings of the 18th International Conference on Flow Dynamics (ICFD2021), online, Japan, (2021), OS20-11 726-727 2021/11

  27. Multifunctional Hybrid Filaments Comprising Aligned Nanocellulose and Carbon Nanotubes Synthesized by a Filed-assisted Flow Focusing Method

    Heather Wise, Hidemasa Takana, Anthony Dichiara

    Proceedings of the 18th International Conference on Flow Dynamics (ICFD2021), OS5-16 285-286 2021/11

  28. Electroactive Polymers as Actuators: Why Do They Deform?

    Gildas Coativy, Kaori Yuse, Gildas Diguet, Laurence Seveyrat, Véronique Perrin, Florent Dalmas, Sébastien Livi, Joël Courbon, Hidemasa Takana, Jean Yves Cavaillé

    Proceedings of the 18th International Conference on Flow Dynamics (ICFD2021), OS5-15 282-284 2021/11

  29. Numerical Simulation and Optical Emission Spectrometry for Multiple Thermal Plasma Jet

    Jeong-Hwan Oh, Young Hee Lee, Hyeokjun Kang, Tae-Hee Kim, Hidemasa Takana, Sooseok Choi

    Proceedings of the 18th International Conference on Flow Dynamics (ICFD2021), OS5-6 261-262 2021/11

  30. Effect of environmental temperature on CO2 selective absorption characteristics by ionic liquid electrospray in flow system Peer-reviewed

    Hidemasa Takana, Nozomi Hara, Takashi Makino, Mitsuhiro Kanakubo

    Journal of Electrostatics 114 103634-103634 2021/11

    Publisher: Elsevier BV

    DOI: 10.1016/j.elstat.2021.103634  

    ISSN: 0304-3886

  31. Theoretical Analysis on Power Generation Characteristics for Co-axial MHD Energy Conversion Device Peer-reviewed

    Ryo Sasaki, Takayasu Fujino, Hidemasa Takana, Hiromichi Kobayashi

    IEEJ Transactions on Power and Energy 141 (10) 642-648 2021/10/01

    Publisher: Institute of Electrical Engineers of Japan (IEE Japan)

    DOI: 10.1541/ieejpes.141.642  

    ISSN: 0385-4213

    eISSN: 1348-8147

  32. Effect of Electric Field on the Hydrodynamic Assembly of Polydisperse and Entangled Fibrillar Suspensions Peer-reviewed

    Christophe Brouzet, Nitesh Mittal, Tomas Rosén, Yusuke Takeda, L. Daniel Söderberg, Fredrik Lundell, Hidemasa Takana

    Langmuir 37 (27) 8339-8347 2021/07/13

    Publisher: American Chemical Society (ACS)

    DOI: 10.1021/acs.langmuir.1c01196  

    ISSN: 0743-7463

    eISSN: 1520-5827

  33. Theoretical analysis of annular laminar flows with MHD interaction driven by rotating co-axial cylinder Peer-reviewed

    Sasaki R, Fujino T, Takana H, Kobayashi H

    Electronics and Communications in Japan 104 (2) 2021/06

    Publisher: Willy

    DOI: 10.1002/ecj.12311  

    ISSN: 1942-9533

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    Theoretical solution is derived for annular laminar flows with MHD interaction driven by a rotating co-axial cylinder. The effects on the flow field and rotational torque are clarified by changing the radius ratio and the strength of MHD interaction. As the radius ratio increases, azimuthal flow velocity increases and approaches the plane Couette flow profile for weak MHD interaction. The azimuthal flow velocity, however, decreases as the MHD interaction increases, and the reverse flow emerges in large radial locations. As the MHD interaction increases, the rotational torque increases. A larger radius ratio leads to the larger sensitivity of the change in rotational torque.

  34. Liquid Metal Flows with MHD Interaction in Rotating Co-axial Cylinder

    Ryo Sasaki, Takayasu Fujino, Hidemasa Takana, Hromitsu Kobayashi

    Proceedings of the 9th edition of the International Conference on Computational Methods for Coupled Problems in Science and Engineering (COUPLED PROBLEMS 2021), IS04B-3 2021/06

  35. Effect of Flow Channel Configuration on Nano Fibril Alignment by Elongational Flow Peer-reviewed

    Satoru Fukumori, Hidemasa Takana

    Japanese Journal of Multiphase Flow 35 (1) 134-141 2021/03

  36. Theoretical Analysis of Annular Laminar Flows with MHD Interaction Driven by Rotating Co-axial Cylinder Peer-reviewed

    Ryo Sasaki, Takayasu Fujino, Hidemasa Takana, Hiromichi Kobayashi

    IEEJ Transactions on Power and Energy 141 (3) 280-286 2021/03/01

    Publisher: Institute of Electrical Engineers of Japan (IEE Japan)

    DOI: 10.1541/ieejpes.141.280  

    ISSN: 0385-4213

    eISSN: 1348-8147

  37. Fabrication of liquid-core fiber-optic structure for large-area CO2 sensing using ionic liquids Peer-reviewed

    Miku OHKURA, Hidemasa TAKANA, Fumio S. OHUCHI, Rei FURUKAWA

    Journal of Fluid Science and Technology 16 (1) JFST0004-JFST0004 2021/01

    Publisher: Japan Society of Mechanical Engineers

    DOI: 10.1299/jfst.2021jfst0004  

    eISSN: 1880-5558

  38. Numerical Simulation on Orientation Control of Cellulose Nano Fibril by Electric Field during Flow Focusing

    Hidemasa Takana, Ryo Sato

    Proc. of 17th Int. Conf. on Flow Dynamics 231-232 2020/10

  39. Aligned Conductive Composite Filaments using Field Assisted Flow Focusing System

    Heather Wise, Hidemasa Takana, Anthony Dichiara

    Proc. of 17th Int. Conf. on Flow Dynamics 227-228 2020/10

  40. Property Investigation of Imidazolium-Acetate Based Ionic Liquids Using Experimental Measurements and Machine Learning

    Miku Okura, Hidemasa Takana, Xinyue Wang, Yue Huang, Fumio S. Ohuchi, Rei Furukawa

    Proc. of 17th Int. Conf. on Flow Dynamics 224-225 2020/10

  41. Study on MHD Annular Flows Driven by Rotating Co-axial Cylinder

    Ryo Sasaki, Takayasu Fujino, Hidemasa Takana, Hiromichi Kobayashi

    Proc. of 17th Int. Conf. on Flow Dynamics 220-221 2020/10

  42. Cavitation Flow to Generate Plasma in Organic Solvent for Carbon Particle Synthesis

    Nozomi Takeuchi, Shoya Yamazaki, Sota Imaizumi, Hidemasa Takana

    Proc. of 17th Int. Conf. on Flow Dynamics 216-217 2020/10

  43. Modeling of Argon-Steam Thermal Plasma Flow for Abatement of Fluorinated Compounds

    Jiří Jeništa, Shiu-Wu Chau, Hidemasa Takana, Hideya Nishiyama, Milada Bartlov, Vladimír Aubrecht, Anthony B Murphy

    Proc. of 17th Int. Conf. on Flow Dynamics 210-211 2020/10

  44. Response Characteristics of Cellulose Nanofibril under AC Electric Field during Flow Focusing

    Hidemasa Takana, Mengfei Guo

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 180-181 2020/10

  45. Computational Simulation on Particle Laden Flow during Polymer Cold-Spray Process

    Chrystelle Bernard, Hidemasa Takana, Olivier Lame, Kazuhiro Ogawa, Jean-Yves Cavaille

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 178-179 2020/10

  46. Multifunctional hybrid filaments comprising aligned nanocellulose and carbon nanotubes synthesized by a field-assisted flow focusing method

    Anthony Dichiara, Heather G. Wise, Hidemasa Takana

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 140-140 2020/10

  47. Study on MHD phenomena in Co-axial Energy Conversion Device

    Hiromichi Kobayashi, Hidemasa Takana, Ryo Sasaki, Takayasu Fujino

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 89-90 2020/10

  48. Numerical Simulation of a Thermal Plasma Reactor for the Wastes to Energy

    Sooseok Choi, Hidemasa Takana

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 87-88 2020/10

  49. Development of Numerical Modeling on Enhancement of CO2 Absorption by Ionic Liquid Electrospray

    Hidemasa Takana, Takayasu Fujino

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 85-86 2020/10

  50. Formation and Propagation of Ionization Waves During Ns Pulse Breakdown in Plane-to-Plane Geometry

    Keegan Orr, Xin Yang, Ilya Gulko, Igor V. Adamovich, Hidemasa Takana

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 83-84 2020/10

  51. Control of reaction field in cavitation plasma for high-speed and eco-friendly synthesis of carbon catalysts

    Nozomi Takeuchi, Shoya Yamazaki, Sota Imaizumi, Hidemasa Takana

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 81-82 2020/10

  52. CO2 Detection Using an Ionic Liquid-Core Fiber-Optic Structure and Material Optimization Using Machine Learning

    Miku Okura, Hidemasa Takana, Xinyue Wang, Yue Huang, Fumio Ohuchi, Xinyue Wang, Rei Furukawa

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 79-80 2020/10

  53. Science of Ultrafine Droplet and High Speed Impact

    Takehiko Sato, Masao Watanabe, Takeru Yano, Yuka Iga, Kazumichi Kobayashi, Toshiyuki Hayase, Jun Ishimoto, Makoto Ohta, Atsuki Komiya, Hidemasa Takana, Kiyonobu Ohtani, Junnosuke Okajima, Satoshi Uehara, Suguru Miyauchi, Hitomi Anzai

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 27-27 2020/10

  54. Thermal gradient of in-flight polymer particles during cold spraying Peer-reviewed

    C.A. Bernard, H. Takana, G. Diguet, K. Ravi, O. Lame, K. Ogawa, J.-Y. Cavaillé

    Journal of Materials Processing Technology 116805-116805 2020/06

    Publisher: Elsevier BV

    DOI: 10.1016/j.jmatprotec.2020.116805  

    ISSN: 0924-0136

  55. Surface cooling by dielectric barrier discharge plasma actuator in confinement channel Peer-reviewed

    Satoshi Uehara, HIdemasa Takana

    Journal of Electrostatics 104 103417 2020/03

  56. Modelling of inhomogeneous mixing of plasma species in argon–steam arc discharge for broad range of operating conditions Peer-reviewed

    Jíří Jeništa, Hidemasa Takana, Hideya Nishiyama, Milada Bartlová, Vladimir Aubrecht, Anthony B. Murphy

    European Physical Journal D 72 (2) 22 2020/02

  57. Development of Non-equilibrium Plasma and Combustion Integrated Model for Reaction Analysis Peer-reviewed

    Masahiro Horikoshi, Tatsuya Tanaka, Keisuke Okihama, Yohei Kon, Hidemasa Takana

    SAE Technical Paper Series JSAE 20199060/SAE 2019-01-2349 2019/12/19

    Publisher: SAE International

    DOI: 10.4271/2019-01-2349  

  58. Ignition Experiments by Nanosecond Repetitively Pulsed Discharges in Intense Turbulence for Super Lean Burn at Engine Condition Peer-reviewed

    Kodai Uesugi, Youhi Morii, Taichi Mukoyama, Takuya Tezuka, Susumu Hasegawa, Hisashi Nakamura, Hidemasa Takana, Kaoru Maruta, Takeshi Yokomori, Norimasa Iida

    SAE Technical Papers JSAE 20199308/SAE 2019-01-2160 (December) 2019/12/19

    DOI: 10.4271/2019-01-2160  

    eISSN: 0148-7191

  59. Optical Investigation of Primary Breakup in Liquid Sprays

    Noritsune Kawaharada, Hidemasa Takana, Friedrich Dinkelacker

    Proceedings of the 16th International Conference on Flow Dynamics (ICFD2019) OS5-11 354-355 2019/11

  60. Computational Simulation on Control of Cellulose Nano Fibril by Alternative Electric Field

    Hidemasa Takana, Mengfei Guo

    Proceedings of the 16th International Conference on Flow Dynamics (ICFD2019) OS5-9 350-351 2019/11

  61. Investigation of the Thermal Behavior of In-flight Polymer Particle during Cold-Spray Process

    Chrystelle Bernard, Hidemasa Takana, Gildas Diguet, Kesavan Ravi, Oliver Lame, Kazuhiro Ogawa, Jean-Yves Cavaillé

    Proceedings of the 19th International Symposium on Advanced Fluid Information (AFI-2019) OS20-4 220-221 2019/11

  62. Alignment of Cellulose Nanofibrils and Carbon Nanotubes in a Flow Focusing System Assisted by Electric Field

    Heather Wise, Hidemasa Takana, Anthony Dichiara

    Proceedings of the 19th International Symposium on Advanced Fluid Information (AFI-2019) CRF-55 76-77 2019/11

  63. High-Speed Imaging of Primary Breakup in Electrosprays

    Noritsune Kawaharada, Hidemasa Takana, Friedrich Dinkelacker

    Proceedings of the 19th International Symposium on Advanced Fluid Information (AFI-2019) CRF-38 76-77 2019/11

  64. Development of Numerical Modeling on Enhancement of CO2 Absorption by Ionic Liquid Electrospray

    Hidemasa Takana, Koji Kawatani, Takayasu Fujino

    Proceedings of the 19th International Symposium on Advanced Fluid Information (AFI-2019) CRF-37 74-75 2019/11

  65. Electric Field Measurements in Atmospheric Pressure Discharges by Electric Field Induced Second Harmonic (F-FISH) Generation

    M. Simei Simei, Y. Tang, K. orr, I. Adamovich, H. Takana, H. Nishiyama

    Proceedings of the 19th International Symposium on Advanced Fluid Information (AFI-2019) CRF-22 44-45 2019/11

  66. Optical Properties of 1-ethyl-3-methylimidazolium Acetate Before and After Carbon Dioxide Exposure

    Miku Okura, Rei Furukawa, Hidemasa Takana, Fumio Ohuchi

    Proceedings of the 19th International Symposium on Advanced Fluid Information (AFI-2019) CRF-14 28-29 2019/11

  67. Computational Simulation on Ionic Liquid Electrospray for High Efficiency Carbon Dioxide Absorption

    Hidemasa Takana, Koji Kawatani, Nozomi Hara

    Proceedings of International Symposium on New Plasma and Electrical Discharge Applications; and on Dielectric Materials (ISNPEDADM 2019) USB 2019/10

  68. Enhancement of CO2 Absorption by Ionic Liquid Electrospray Peer-reviewed

    H. Takana, N. Hara, T. Makino, M. Kanakubo

    Proceedings of 12th European Congress of Chemical Engineering (ECCE12) USB 2019/09

  69. Effect of Alternative Electric Field and Elongational Flow on Control of Cellulose Nano Fibril

    Hidemasa Takana, Yusuke Takeda, Misaki Kiuchi

    Proceedings of the 4th International Conference on Natural Fibers (ICNF2019) ID61 USB 2019/06

  70. 水中パルスキャピラリー放電による気泡界面挙動および分解特性

    川原田鎮一, 上原聡司, 高奈秀匡, 西山秀哉

    日本機械学会流体工学部門講演会講演論文集 (OS12-7) (2pp) 2018/11

  71. Numerical Modeling on Enhancement of CO2 Absorption by Ionic Liquid Electrospray

    H. Takana, K. Kawatani, T. Fujino

    Proceedings of the 18th International Symposium on Advanced Fluid Information (AFI-2018) CRF-44 90-91 2018/11

  72. Modelling of Diffusion of Plasma Species in Argon-Steam Arc Discharge for Subsonic to Supersonic Flow Regimes

    J. Jeništa, H. Takana, H. Nishiyama, M. Bartlová, V. Aubrecht, A. B. Murphy

    Proceedings of the 15th International Conference on Flow Dynamics (ICFD2018) OS5-13 508-509 2018/11

  73. Modeling of Inhomogeneous Plasma-Species Mixing in Atmospheric-Pressure Argon-Steam Arc

    J. Jeništa, H. Takana, H. Nishiyama, M. Bartlová, V. Aubrecht, A. B. Murphy

    Proceedings of the 18th International Symposium on Advanced Fluid Information (AFI-2018) CRF-R2 126-127 2018/11

  74. Modeling Nanoparticle Synthesis in an ICP Reactor Using QMOM

    M. V. Cappellen, P. Proulx, S. Lopes, H. Takana

    Proceedings of the 18th International Symposium on Advanced Fluid Information (AFI-2018) CRF-84 174-175 2018/11

  75. Fundamental Characteristics on Alignment of Cellulose Nano-fibrils by AC Electric Field

    R. Sato, M. Guo, H. Takana

    Proceedings of the 15th International Conference on Flow Dynamics (ICFD2018) OS18-58 970-971 2018/11

  76. Electric Field Measurements in Nanosecond Pulse Discharges in Air and in Hydrogen Flame

    M. S. Simeni, Y. Tang, K. Frederickson, I. Adamovich, H. Takana, H. Nishiyama

    Proceedings of the 18th International Symposium on Advanced Fluid Information (AFI-2018) CRF-43 88-89 2018/11

  77. Dynamic Characteristics of Underwater DC Biased Pulsed Capillary Discharge for High Efficiency Water Purification

    S. Kawaharada, S. Uehara, H. Takana, H. Nishiyama

    Proceedings of the 15th International Conference on Flow Dynamics (ICFD2018) OS18-46 946-947 2018/11

  78. CO2 Absorption Separation Using Acetate-based Ionic Liquids

    T. Makino, Y. Kohno, M. Kanakubo, N. Hara, H. Takana

    Proceedings of the 15th International Conference on Flow Dynamics (ICFD2018) OS5-5 492-493 2018/11

  79. Cellulose Nano Fibril Alignment Controlled by Electric Field in Elongational Flow for Innovative Single Fiber Fabrication

    M. Kiuchi, Y. Takeda, H. Takana

    Proceedings of the 15th International Conference on Flow Dynamics (ICFD2018) OS18-35 924-925 2018/11

  80. Investigation of the Flow Field Dynamics during Cold-Spray of Polymers

    C. A. Bernard, H. Takana, K. Ravi, O. Lame, K. Ogawa, J.-Y. Cavaille

    Proceedings of the 15th International Conference on Flow Dynamics (ICFD2018) OS17-6/CRF-95 850-851 2018/11

  81. Computational Simulation on Physico-chemical Characteristics of Nano Second Pulsed DBD in Lean Air/Methane Mixture for Plasma Assisted Ignition Invited

    Hidemasa Takana

    Proceedings of Fall meeting of Korean Physics Society, KPS 2018 E1.03 USB 2018/10

  82. 平行平板間におけるプラズマアクチュエータを用いた冷却デバイスの開発

    上原聡司, 佐藤 瞭, 富田啓太郎, 高奈秀匡, 西山秀哉

    日本機械学会2018年度年次大会講演論文集 S0520202 (1pp) 2018/09

  83. 細管内放電における気泡界面挙動および分解特性

    川原田鎮一, 上原聡司, 高奈秀匡, 西山 秀哉

    混相流シンポジュウム2018アブストラクト (2pp) 2018/08

  84. Computational Simulation on Streamer Discharge in Air/Fuel Mixture for Plasma Assisted Combustion in Internal Engine Invited

    Hidemasa Takana

    Abstracts of 2018 Asia-Pacific Conference on Plasma and Terahertz Science (APCOPTS) I-02 USB 2018/08

  85. Numerical and Experimental Investigation of Acetic Acid Decomposition by a Nano-Pulse Discharged Bubble in Water Peer-reviewed

    International Journal of Plasma Environmental Science and Technology 12 (1) 30-36 2018/06

  86. イオン流体静電噴霧における液滴形成過程および噴霧特性の数値シミュレーション Peer-reviewed

    川谷康二, 高奈秀匡

    混相流 32 (1) 97-107 2018/03

    DOI: 10.3811/jjmf.32.97  

  87. Modeling of inhomogeneous mixing of plasma species in argon-steam arc discharge Peer-reviewed

    J. Jeništa, H. Takana, S. Uehara, H. Nishiyama, M. Bartlová, V. Aubrecht, A. B. Murphy

    Journal of Physics D: Applied Physics 51 (4) 045202 (22pp) 2018/01/10

    Publisher: Institute of Physics Publishing

    DOI: 10.1088/1361-6463/aa9f6f  

    ISSN: 1361-6463 0022-3727

  88. Special Issue of the Fourteenth International Conference on Flow Dynamics (ICFD2017) Preface Peer-reviewed

    Tokumasu Takashi, Hirota Makoto, Iga Yuka, Nakamura Hisashi, Shimoyama Koji, Takana Hidemasa

    JOURNAL OF FLUID SCIENCE AND TECHNOLOGY 13 (4) 2018

    DOI: 10.1299/jfst.2018jfst0022  

    ISSN: 1880-5558

  89. Modelling of Plasma-Species Mixing in Argon-Steam Arc Discharge for Broad Range of Currents and Argon Mass Flow Rates

    Jíří Jeništa, Hidemasa Takana, Satoshi Uehara, Hideya Nishiyama, Milada Bartlová, Vladimir Aubrecht, Anthony B. Murphy

    Proceedings of the 7th International Conference on Microelectronics and Plasma Technology WD3-3 2018

  90. Experimental and theoretical study on chemical reactions and species diffusion by a nano-pulse discharged bubble for water treatment Peer-reviewed

    Yuchen He, Satoshi Uehara, Hidemasa Takana, Hideya Nishiyama

    European Physical Journal D 72 (1) 11 (8pp) 2018/01/01

    Publisher: Springer New York LLC

    DOI: 10.1140/epjd/e2017-80240-5  

    ISSN: 1434-6079 1434-6060

  91. Fundamental Characteristics of Ionic Liquid Electrospray and its Application to Energy and Environmental Technologies Invited

    Hidemasa Takana, Koyo Saegusa, Kazuki Yamamoto

    Proceedings of Taiwan-Japan International Conference on Magnetic Fluids 2017 (TJ-ICMF2017) 49-50 2017/12

  92. Numerical Modeling of Diffusion of Plasma Species in Argon-Water Arc Discharge: Comparison Between Inhomogeneous and Homogeneous Mixing Assumptions

    Jiri Jenista, Hidemasa Takana, Satoshi Uehara, Hideya Nishiyama, Anthony B. Murphy, Milada Bartlova, Vladimir Aubrecht

    Proceedings of the 14th International Conference on Flow Dynamics (ICFD2017), OS15-2 USB 2017/11/01

  93. Experimental and Theoretical Study on Plasma Chemistry by a Nano-Pulse Discharged Bubble for Advanced Water Treatment

    Yuchen He, Satoshi Uehara, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 14th International Conference on Flow Dynamics (ICFD2017), OS15-10 USB 2017/11/01

  94. Computational Simulation on Fundamental Characteristics of Nanosecond Pulsed DBD and Its Application to Combustion Assist

    Hidemasa Takana, Igor Adamovich, Hideya Nishiyama

    Proceedings of the 14th International Conference on Flow Dynamics (ICFD2017), OS15-13 USB 2017/11/01

  95. Computational Simulation on Electrostatic Alignment of Cellulose Nano-fibrils in Flow

    Menggei Guo, Hidemasa Takana

    Proceedings of the 14th International Conference on Flow Dynamics (ICFD2017), OS17-24 USB 2017/11/01

  96. Numerical Simulation on Self-ignition Behavior Assisted by a Non-equilibrium Plasma

    Youhei Kon, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 14th International Conference on Flow Dynamics (ICFD2017), OS17-71 USB 2017/11/01

  97. Kinetic Modeling of High-Pressure Surface Ionization Waves Generated by Ns Pulse Discharges

    Igor Adamovich, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 17th International Symposium on Advanced Fluid Information (AFI-2017) 42-43 2017/11/01

  98. Development of Hydrogen Production Process by MHD Mixing

    Yuhiro Iwamoto, H. Mi, Yasushi Ido, Hidemasa Takana

    Proceedings of the 17th International Symposium on Advanced Fluid Information (AFI-2017) 46-47 2017/11/01

  99. Effect of Inhomogeneous Mixing of Plasma Species on the Properties of Argon-Steam Arc Discharge

    Jiri Jenista, Hidemasa Takana, Satoshi Uehara, Hideya Nishiyama, Anthony B. Murphy, Milada Bartlova, Vladimir Aubrecht

    Proceedings of the 17th International Symposium on Advanced Fluid Information (AFI-2017) 194-195 2017/11/01

  100. Experimental Analysis on Fluid Dynamical Characteristics of Ionic Liquid Electrospray

    Hidemasa Takana, Koyo Saegusa

    Extended Abstracts of the 9th JSME-KSME Thermal and Fluids Engineering Conference (TFEC9), TFEC9-1428 USB 2017/10/27

  101. Numerical Simulation on Droplet Ejection in Ionic Liquid Electrospray

    Koji Kawatani, Hidemasa Takana

    Extended Abstracts of the 9th JSME-KSME Thermal and Fluids Engineering Conference (TFEC9), TFEC9-1521 USB 2017/10/27

  102. Control of Cellulose Nanofibril Alignment and Rotary Diffusion in Flow by Alternative Electric Field

    Hidemasa Takana, Yusuke Takeda, Fredrik Lundell

    Abstracts of the 4th International Cellulose Conference 2017 (ICC 2017, Fukuoka), P-070 189 2017/10/17

  103. 高効率水質浄化のためのパルス放電気泡による液中化学反応とラジカル拡散の実験・計算統合解析

    何雨辰, 西山秀哉, 高奈秀匡, 上原聡司

    日本機械学会2017年度年次大会講演論文集, G0500506 2017/09/05

  104. 非平衡プラズマを用いた自着火促進効果の数値解析

    今陽平, 高奈秀匡, 西山秀哉

    日本機械学会2017年度年次大会講演論文集, J0710102 (4pp) 2017/09/04

  105. On the effect of Inhomogeneous Mixing of Plasma Species in Argon-Steam Arc Discharge

    Jiri Jenista, Hidemasa Takana, Satoshi Uehara, Hideya Nishiyama, Milada Bartlova, Vladimir Aubrecht, Anthony B. Murphy

    Proceedings of the 23rd International Symposium on Plasma Chemistry (ISPC23), P2-28-7 2017/07

  106. Effect of Pulsed Voltage on Characteristics of Ionic Liquid Electrospray

    Hidemasa Takana, Koyo Saegusa

    Proceedings of the 2017 Annual Meeting of the Electrostatics Society of America USB 2017/06

  107. 水処理のための気泡内放電による液中化学反応とラジカル拡散の実験・計算統合解析

    何雨辰, 上原聡司, 高奈秀匡, 西山秀哉

    日本機械学会東北支部第52期総会・講演会講演論文集 No.2017 (1) 87-88 2017/03/14

  108. Development and Fundamental Characteristics of Co-axial MHD Energy Conversion Device Peer-reviewed

    Hidemasa Takana, Akira Tanida

    Mechanical Engineering Journal 4 (1) 16-00500-1-16-00500-9 2017/02/15

    Publisher: The Japan Society of Mechanical Engineers

    DOI: 10.1299/mej.16-00500  

    More details Close

    <p>Innovative electro-magnetic energy conversion device has been developed. This device has co-axial configuration with liquid metal filled inside under applied magnetic field. The azimuthal liquid metal flow is decelerated by Lorentz force acting as a body force. The rotational torque continuously increases with excessive kinetic energy converted into electric energy by increasing magnetic field. The static and dynamic characteristics of the device have experimentally investigated with AC servo-motor as a driving source. The experimental results show that the rotational torque can be controlled with electric power extraction by applied magnetic field and external load resistance. The liquid metal inside the device is driven in the azimuthal direction directly by the electrically insulated propeller on the shaft and the electric power is extracted with proportionally to the square of shaft rotational speed. The required rotational torque increases with applied magnetic flux density due to dominant eddy current induced by non-uniform magnetic field in azimuthal direction. The constant rotational speed can be maintained with power generation by controlling applied magnetic flux density even for increasing input torque. It was clarified that the time constant for the control of the rotational speed becomes smallest when the changing time of applied magnetic flux density and that of input torque are equal.</p>

  109. Special Issue of the Thirteenth International Conference on Flow Dynamics (ICFD2016) Preface Peer-reviewed

    Niimi Tomohide, Iga Yuka, Nakamura Hisashi, Shimoyama Koji, Takana Hidemasa, Tokumasu Takashi

    JOURNAL OF FLUID SCIENCE AND TECHNOLOGY 12 (3) 2017

    DOI: 10.1299/jfst.2017jfst0020  

    ISSN: 1880-5558

  110. Interaction between Rotary Arc and Injected Particles in a Non-transferred DC Plasma Spray with Externally Applied Magnetic Field Peer-reviewed

    Hiroki Saito, Takayasu Fujino, Hidemasa Takana, Javad Mostaghimi

    Proceedings of International Thermal Spray Conference 2017 285-290 2017

  111. Preface (Special Issue of the Twelfth International Conference on Flow Dynamics (ICFD2015)) Peer-reviewed

    Hideya Nishiyama, Yuji Hattori, Yuka Iga, Hidemasa Takana, Takashi Tokumasu, Shigeru Yonemura

    Journal of Fluid Science and Technology 11 (4) JFST0020-1 2016/12/28

    DOI: 10.1299/jfst.2016jfst0020  

    ISSN: 1880-5558

  112. Numerical Analysis of In-flight Particles in Plasma Jet with an Externally Applied Magnetic Field Peer-reviewed

    Hiroki Saito, Yusuke Nakane, Takayasu Fujino, Hidemasa Takana

    Journal of Fluid Science and Technology 11 (4) JFST0024-1-JFST0024-12 2016/12/28

    Publisher: The Japan Society of Mechanical Engineers

    DOI: 10.1299/jfst.2016jfst0024  

    ISSN: 1880-5558

  113. Innovative Cellulose Material Synthesis by Electrostatic Micro Fibril Alignment

    Yusuke Takeda, Hidemasa Takana, Fredrik Lundell

    Proceedings of the 13th International Conference on Flow Dynamics (ICFD2016), OS16-3 USB 2016/10

  114. Numerical Modeling of Mixing of Plasma Species in Argon-Water Arc Discharge for Low to Moderate Currents

    Jiri Jenista, Hidemasa Takana, Satoshi Uehara, Hideya Nishiyama, Anthony B. Murphy, Milada Bartlova, Vladimir Aubrecht

    Proceedings of the 13th International Conference on Flow Dynamics (ICFD2016), OS14-2 USB 2016/10

  115. Numerical and Experimental Analyses on Electric Filed Development in High Pressure Air Nanosecond DBD

    Hidemasa Takana, Benjamin M. Goldberg, Igor V. Adamovich, Hideya Nishiyama

    Proceedings of the 13th International Conference on Flow Dynamics (ICFD2016), OS14-13 USB 2016/10

  116. Influence of Operating Currents on In-flight Particle Trajectories in Magnetically Driven Arc Plasma Jet

    Hiroki Saito, Takayasu Fujino, Hidemasa Takana, Larry Pershin, Javad Mostaghimi

    Proceedings of the 16th International Symposium on Advanced Fluid Information (AFI-2016) 22-23 2016/10

  117. Fundamental Numerical Study of MHD Energy Conversion in Annular Geometry

    Yuhiro Iwamoto, Hidemasa Takana, Hiroshi Yamaguchi, Yasushi Ido

    Proceedings of the 16th International Symposium on Advanced Fluid Information (AFI-2016) 28-29 2016/10

  118. Four-Wave Mixing Measurements and Kinetic Modeling Predictions of Electric Field in a Quasi-Two-Dimensional Ns Pulse Discharge in Air

    Benjamin M. Goldberg, Marien Simeni Simeni, Cheng Zhang, Hidemasa Takana, Hideya Nishiyama, Igor V. Adamovich

    Proceedings of the 16th International Symposium on Advanced Fluid Information (AFI-2016) 76-77 2016/10

  119. Investigation of Diffusion of Plasma Species in Argon-Steam Arc Discharge

    Jiri Jenista, Hidemasa Takana, Satoshi Uehara, Hideya Nishiyama, Anthony B. Murphy, Milada Bartlov, Vladimir Aubrecht

    Proceedings of the 16th International Symposium on Advanced Fluid Information (AFI-2016) 174-175 2016/10

  120. Dynamic Behavior of Microdroplet Ejection by Ionic Liquid Electrospray

    Hidemasa Takana, Koyo Saegusa

    Abstract Booklet of the 5th Asian-Pacific Conference on Ionic Liquids and Green Processes (APCIL-5) 74 2016/10

  121. Numerical Modelling and Simulation of Chemical Reactions in a Nano-Pulse Discharged Bubble for Water Treatment Peer-reviewed

    He Yuchen, Satoshi Uehara, Hidemasa Takana, Hideya Nishiyama

    PLASMA SCIENCE & TECHNOLOGY 18 (9) 924-932 2016/09

    DOI: 10.1088/1009-0630/18/9/09  

    ISSN: 1009-0630

  122. 水中の磁性流体マイクロ液橋振動の誘起する流れパターンの研究

    山本和輝, 須藤誠一, 上原聡司, 高奈秀匡, 西山秀哉

    日本機械学会東北支部第51期総会・講演会講演論文集 2016 (2016-1) 61-62 2016/03

    Publisher: The Japan Society of Mechanical Engineers

  123. Maximum Spread of Water Droplets Impacting on a Superheated Groove-textured Surface

    Visakh Vaikuntanathan, R. Sakthikumar, Hidemasa Takana, Deivandren Sivakumar, Hideya Nishiyama

    Proceedings of the International Conference on Recent Trends in Engineering and Material Sciences (ICEMS-2016) 4p 2016/03

  124. INVESTIGATION OF MIXING OF PLASMA SPECIES IN ARGON-WATER ARC DISCHARGE

    Jiri Jenista, Hidemasa Takana, Satoshi Uehara, Hideya Nishiyama, Anthony B. Murphy, Milada Bartlova, Vladimir Aubrecht

    2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) 1p 2016

    DOI: 10.1109/PLASMA.2016.7534397  

  125. Preliminary Study of Mixing of Plasma Species in a Hybrid-Stabilized Argon-Water Electric Arc Peer-reviewed

    Jiri Jenista, Hidemasa Takana, Satoshi Uehara, Hideya Nishiyama, Anthony B. Murphy, Milada Bartlova, Vladimir Aubrecht

    Plasma Physics and Technology 2 (3) 316-319 2015/12

  126. Liquid Surface Oscillations of Ferrofluid Droplet in Static and Alternating Magnetic Fields

    Seiichi Sudo, Masato Nakanishi, Sota Inomata, Hidemasa Tanaka, Hideya Nishiyama

    Abstract Book of International Conference on Advanced Technology in Experimental Mechanics 2015 (ATEM'15) 271 2015/10

  127. Visualization and Analysis on Electrospray Formation with Ionic Liquid

    Koyo Saegusa, Shohei Shinoki, Hidemasa Takana

    Abstract Book of International Conference on Advanced Technology in Experimental Mechanics 2015 (ATEM'15) 276 2015/10

  128. Feasibility of Micron-Sized Hollow Alumina Powder Production by Use of Low Power DC-RF Hybrid Plasma Flow System

    Oleg P. Solonenko, Hideya Nishiyama, Hidemasa Takana, Satoshi Uehara

    Proceedings of the 12th International Conference on Flow Dynamics (ICFD2015), GS1-52 USB 2015/10

  129. Numerical Simulation of Coaxial MHD Power Generator using Lattice Boltzmann Method

    Kenta Taki, Yuhiro Iwamoto, Hidemasa Takana, Hiroshi Yamaguchi

    Proceedings of the 12th International Conference on Flow Dynamics (ICFD2015), OS16-16 USB 2015/10

  130. Numerical Modeling and Simulation of Plasma Chemical Reactions inside a Bubble for Water Treatment

    Yuchen He, Taketo Hayashi, Satoshi Uehara, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 12th International Conference on Flow Dynamics (ICFD2015), OS16-20 USB 2015/10

  131. Discharge and Electrospray Phenomena Using Magnetic Fluid Surface

    Tomonori Itoga, Satoshi Uehara, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 12th International Conference on Flow Dynamics (ICFD2015), OS16-24 USB 2015/10

  132. Experimental Analysis on Dynamics of Ionic Liquid Electrospray

    Koyo Saegusa, Hidemasa Takana

    Proceedings of the 12th International Conference on Flow Dynamics (ICFD2015), OS16-63 USB 2015/10

  133. Magnetohydrodynamics Simulation on MHD Power Generator for Wind Energy

    Yuhiro Iwamoto, Hidemasa Takana, Kenta Taki, Hiroshi Yamaguchi

    Proceedings of the 15th International Symposium on Advanced Fluid Information (AFI-2015) 48-49 2015/10

  134. Numerical Analysis of In-flight Sprayed Particles in Plasma Jet for a Thermal Plasma Spray with an Externally Applied Magnetic Field

    Hiroki Saito, Yusuke Nakane, Takahiro Fujino, Hidemasa Takana

    Proceedings of the 15th International Symposium on Advanced Fluid Information (AFI-2015) 50-51 2015/10

  135. Investigation of Inhomogeneous Mixing of Plasma Species in a Hybrid-stabilized Argon-water Arc Discharge: The Very First Simulations

    Jiri Jenista, Hidemasa Takana, Satoshi Uehara, Hideya Nishiyama, Milan Hrabovsky, Anthony B. Murphy, Milada Bartlova, Vladimir Aubrecht

    Proceedings of the 15th International Symposium on Advanced Fluid Information (AFI-2015) 56-57 2015/10

  136. Kinetic Modeling of Energy Thermalization, Chemical Reactions, and Compression Wave Formation in Non-equilibrium Nanosecond Pulse Discharges in Nitrogen and Air

    Ivan Shkurenkov, Igor V. Adamovich, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 15th International Symposium on Advanced Fluid Information (AFI-2015) 60-61 2015/10

  137. 水処理技術応用に向けたパルス放電気泡の反応特性解析

    林剛人, 上原聡司, 高奈秀匡, 西山秀哉

    混相流シンポジウム2015(高知), D152 USB (2pp) 2015/08/04

  138. Nano Powder Transportation by Combining Plasma Actuation and Electrostatic Mixing in a Tube Peer-reviewed

    Hidemasa Takana, Shusaku Nakakawaji, Satoshi Uehara, Hideya Nishiyama

    Journal of Fluid Science and Technology 10 (2) 0011-1-0011-10 2015/07/23

    Publisher: The Japan Society of Mechanical Engineers

    DOI: 10.1299/jfst.2015jfst0011  

    ISSN: 1880-5558

    More details Close

    "Plasma Tube" is proposed for nano particle transportation and for particle surface purification in this study. The well-controlled efficient nano particle transportation is realized by combining plasma actuation, electrostatic force and high oxidation potential of produced ozone in a tube. Nano particles in the plasma tube can be transported in axial direction with swirl. Nano particles near the inner electrode wall jump due to electrostatic force, which can suppress particle clogging in a tube. The characteristics of plasma induced flow, particle charging and ozone generation are experimentally clarified in this study for various electrode angles and electrical conditions. Finally, the powder transportation rate is quantitatively evaluated. The alumina powder with average diameter of 30 nm can be transported at the maximum rate of 2.8 mg/s at consumption power of as low as 0.35 W for the transportation distance of 100 mm.

  139. Gas-Liquid Two-Phase Chemical Reaction Model of Reactive Plasma Inside a Bubble for Water Treatment

    Taketo Hayashi, Satoshi Uehara, Hidemasa Takana, Hideya Nishiyama

    roceedings of the 22nd International Symposium on Plasma Chemistry, P-I-3-27 USB (3pp) 2015/07

  140. Innovative Powder Transportation Using Dielectric Barrier Discharge Tube

    Hidemasa Takana, Shusaku Nakakawaji, Satoshi Uehara, Hideya Nishiyama

    Proceedings of the 22nd International Symposium on Plasma Chemistry, P-II-7-30 USB (2pp) 2015/07

  141. 漏洩遮断のための磁場下にある分岐管内MR流体のクラスター形成と流動特性解析 Peer-reviewed

    原田真琴, 上原聡司, 高奈秀匡, 西山秀哉

    日本機械学会論文集 81 (823) 14-00547-1-14-00547-10 2015/03/25

    Publisher: The Japan Society of Mechanical Engineers

    DOI: 10.1299/transjsme.14-00547  

    ISSN: 2187-9761

    More details Close

    Flow dynamics of magneto-rheological (MR) fluid in a branch pipe as a simple model of a cracked pipe and a blood vessel with wounds is clarified by considering the effects of magnetic field intensity, inner diameter of a branch channel and wall elasticity of a pipe. It is shown that a MR fluid cluster shuts down a branch leakage flow without reducing main flow by measuring a mass flow rate of MR fluid in a branch channel under magnetic field. Main channels made of acrylic, silicone and polyvinyl alcohol-hydrogel (PVA-H) were used in order to evaluate the effect of channel elasticity on flow dynamics of MR fluid. The seal effect was quantitatively clarified by evaluating the endurance pressure of the cluster in a branch channel. Furthermore, the break down behavior of clusters formed in a branch channel was experimentally analyzed by visualizing the flow dynamics of MR fluid cluster in order to clarify the difference in endurance pressure depending on the pipe materials.

  142. Decomposition of Acetic Acid Using Multiple Bubble Jets with Pulsed Electrical Discharge Peer-reviewed

    Hideya Nishiyama, Kei Niinuma, Shohei Shinoki, Hidemasa Takana

    PLASMA CHEMISTRY AND PLASMA PROCESSING 35 (2) 339-354 2015/03

    DOI: 10.1007/s11090-014-9607-4  

    ISSN: 0272-4324

    eISSN: 1572-8986

  143. Visualization of arc and plasma flow patterns for advanced material processing Peer-reviewed

    O. P. Solonenko, H. Nishiyama, A. V. Smirnov, H. Takana, J. Jang

    JOURNAL OF VISUALIZATION 18 (1) 1-15 2015/02

    DOI: 10.1007/s12650-014-0221-6  

    ISSN: 1343-8875

    eISSN: 1875-8975

  144. OS22-5 Three-dimensional Simulation of a Non-transferred DC Plasma Torch with a Mixture Gas of Carbon Dioxide and Methane(Plasma and Magnetohydrodynamics,OS22 Experimental method in fluid mechanics,FLUID AND THERMODYNAMICS)

    H.,Saito, Y.,Nakane, Fujino,Takayasu, H.,Takana, J.,Mostaghimi

    Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2015 (14) 269 2015

    Publisher: The Japan Society of Mechanical Engineers

  145. ナノパルス放電による内燃機関プラズマ着火に関する数値シミュレーション

    高奈秀匡, Igor V. Adamovich, 西山秀哉

    日本物理学会(領域2)2014年秋季大会・応用物理学会プラズマエレクトロニクス分科会第32回プラズマプロセシング研究会・プラズマ・核融合学会第31回年会講演論文集(Proceedings of Plasma 2014), 20aF-2, USB 2014/11

  146. Glow-Like Helium and Filament-Like Argon Plasma Jets of Using a Dielectric Barrier Configuration at Atmospheric Pressure Peer-reviewed

    Qing Li, Hidemasa Takana, Yi-Kang Pu, Hideya Nishiyama

    IEEE TRANSACTIONS ON PLASMA SCIENCE 42 (10) 2360-2361 2014/10

    DOI: 10.1109/TPS.2014.2337715  

    ISSN: 0093-3813

    eISSN: 1939-9375

  147. Quasi-Laminar Flow Characteristics in Hybrid-Stabilized ArgonWater Arc Discharge for Subsonic-Supersonic Regimes Peer-reviewed

    Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, Petr Krenek, Milada Bartlova, Vladimir Aubrecht

    IEEE TRANSACTIONS ON PLASMA SCIENCE 42 (10) 2632-2633 2014/10

    DOI: 10.1109/TPS.2014.2344632  

    ISSN: 0093-3813

    eISSN: 1939-9375

  148. Operating Characteristics of Electromagnetic Energy Conversion Device for Advanced Wind Energy Utilization

    Akira Tanida, Hidemasa Tanaka

    Proceedings of the 11th International Conference on Flow Dynamics (ICFD2014), OS10-27 USB 2014/10

  149. Computational Modeling and Simulation on ConeFormation in Ionic Liquid Electrospray

    Shohei Shinoki, Hidemasa Takana

    Proceedings of the 11th International Conference on Flow Dynamics (ICFD2014), OS10-70 USB 2014/10

  150. Fundamental Characteristics on Electromagnetic Energy Conversion Device for Efficient Wind Energy Utilization Invited

    Hidemasa Tanaka, Akira Tanida

    Proceedings of the 11th International Conference on Flow Dynamics (ICFD2014), OS10-70 USB 2014/10

  151. Investigation of Mixing of Plasma Species in the Hybrid-Stabilized Argon-Water Electric Arc

    Jiri Jenista, Hidemasa Takana, Satoshi Uehara, Hideya Nishiyama, Milan Hrabovsky

    Proceedings of the 14th International Symposium on Advanced Fluid Information (AFI-2014) 52-53 2014/10

  152. Lattice Boltzmann Simulation on MHD Energy Conversion for Efficient Wind Utilization

    Yuhiro Iwamoto, Hidemasa Takana, Kenta Taki, Hiroshi Yamaguchi

    Proceedings of the 14th International Symposium on Advanced Fluid Information (AFI-2014) 70-71 2014/10

  153. Master Equation Modeling of a Nanosecond Pulse Discharge in Nitrogen in a Pin

    Zak Eckert, Hidemasa Takana, Hideya Nishiyama, Igor Adamovich

    Proceedings of the 14th International Symposium on Advanced Fluid Information (AFI-2014) 72-73 2014/10

  154. Hydrophilization of Metal Surface using Thermal-Nonthermal Coupled Plasma Flow System

    Juyong Jang, Hidemasa Takana, Oleg P. Solonenko, Hideya Nishiyama

    Proceedings of the 14th International Symposium on Advanced Fluid Information (AFI-2014) 110-111 2014/10

  155. Efficient Utilization of Wind Enrgy by Electro-Magnetic Torque Control with Power Generation

    Akira Tanida, Hidemasa Takana

    Proceedings of the 9th JFPS InternationalSymposium on Fluid Power, Matsue 2014 559-563 2014/10

  156. 磁場下にある分岐管内MR流体クラスター形成と流動特性

    原田真琴, 上原聡司, 高奈秀匡, 西山秀哉

    日本流体力学会年会2014講演論文集, USB 2014/09/17

  157. プラズマアクチュエータ効果を用いたナノ粒子輸送

    中川路周作, 高奈秀匡, 西山秀哉

    日本機械学会2014年度年次大会講演論文集, S0550406, DVD 2014 (14-1) "S0550406-1"-"S0550406-4" 2014/09/07

    Publisher: The Japan Society of Mechanical Engineers

    More details Close

    "Plasma Tube" has been proposed for nano particle transportation with particle surface purification in this study. The well-controlled efficient particle transportation is realized by combining plasma actuator effect, electrostatic force and high oxidation potential of produced ozone. Particles in the plasma tube can be transported in axial direction with swirl. Particles near the electrode wall jumps due to electric static force, which can suppress particle clogging in the tube. The characteristics of plasma induced flow, particle charging and ozone generation have been experimental clarified in this study. Furthermore, the effects of electrode angle, and operating conditions on the plasma tube characteristics were investigated to clarify the optimum operating conditions as well as the configuration of "Plasma Tube".

  158. Computational Simulation on Radical Production by Methane-Air DBD for Plasma Assisted Combustion

    Hidemasa Takana, Hideya Nishiyama

    International Workshop on Flow Dynamics Related to Energy, Aerospace and Material Science 2014/08

  159. DBDプラズマチューブを用いたナノ粒子の輸送と表面浄化

    中川路周作, 高奈秀匡, 西山秀哉

    日本混相流学会混相流シンポジウム2014講演論文集, D211, USB 2014/07

  160. Numerical simulation of nanosecond pulsed DBD in lean methane-air mixture for typical conditions in internal engines Peer-reviewed

    Hidemasa Takana, Hideya Nishiyama

    PLASMA SOURCES SCIENCE & TECHNOLOGY 23 (3) 034001-1-034001-9 2014/06

    DOI: 10.1088/0963-0252/23/3/034001  

    ISSN: 0963-0252

    eISSN: 1361-6595

  161. DBDプラズマチューブによるナノ粒子搬送と表面浄化特性

    中川路周作, 高奈秀匡, 西山秀哉

    日本機械学会東北支部第49期総会・講演会講演論文集, 142 2014 (2014-1) CD-ROM-86 2014/03

    Publisher: The Japan Society of Mechanical Engineers

  162. Preface

    SATO Takehiko, HATTORI Yuji, NIIMI Tomohide, TAKANA Hidemasa, TOKUMASU Takashi

    JFST 9 (5) JFST0067-JFST0067 2014

    Publisher: The Japan Society of Mechanical Engineers

    DOI: 10.1299/jfst.2014jfst0067  

    ISSN: 1880-5558

  163. The dynamic behaviour of a micro liquid bridge of magnetic fluid in static and alternating magnetic fields Peer-reviewed

    Seiichi Sudo, Hiroki Takamatsu, Tetsuya Yano, Hidemasa Takana, Hideya Nishiyama

    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS 45 (1-4) 61-67 2014

    DOI: 10.3233/JAE-141813  

    ISSN: 1383-5416

    eISSN: 1875-8800

  164. Computational Simulation of Nanosecond Pulsed Discharge for Plasma Assisted Ignition Peer-reviewed

    H. Takana, I. V. Adamovich, H. Nishiyama

    13TH HIGH-TECH PLASMA PROCESSES CONFERENCE (HTPP-2014) 550 USB 2014

    DOI: 10.1088/1742-6596/550/1/012051  

    ISSN: 1742-6588

  165. Large-Eddy Simulation of Subsonic-Supersonic Flow and Heat Transfer in a Hybrid Gas-Water Stabilized Arc Peer-reviewed

    J. Jenista, H. Takana, H. Nishiyama, M. Bartlova, V. Aubrecht, P. Krenek

    13TH HIGH-TECH PLASMA PROCESSES CONFERENCE (HTPP-2014) 550 USB 2014

    DOI: 10.1088/1742-6596/550/1/012016  

    ISSN: 1742-6588

  166. Large-Eddy Simulation of Subsonic-Supersonic Flow and Heat Transfer in a Hybrid Gas-Water Stabilized Arc Peer-reviewed

    J. Jenista, H. Takana, H. Nishiyama, M. Bartlova, V. Aubrecht, P. Krenek

    13TH HIGH-TECH PLASMA PROCESSES CONFERENCE (HTPP-2014) 550 (1) 012016-1-012016-10 2014

    DOI: 10.1088/1742-6596/550/1/012016  

    ISSN: 1742-6588

  167. Computational Simulation of Nanosecond Pulsed Discharge for Plasma Assisted Ignition Peer-reviewed

    H. Takana, I. V. Adamovich, H. Nishiyama

    13TH HIGH-TECH PLASMA PROCESSES CONFERENCE (HTPP-2014) 550 (1) 012051-1-012051-9 2014

    DOI: 10.1088/1742-6596/550/1/012051  

    ISSN: 1742-6588

  168. Morphological Dynamics of a Liquid Drop Impacted on a Superheated Textured Surface

    Visakh Vaikuntanathan, Sakthikumar Ramachandran, Sivakumar Deivandren, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 10th International Conference on Flow Dynamics (ICFD2013) 170-171 2013/11/25

  169. Scaling of Powder Spheroidization Process Based on Low Power DC-RF Plasma System

    Oleg P. Solonenko, Hideya Nishiyama, Andrey V. Smirnov, Hidemasa Takana, Juyong Jang

    Proceedings of the 10th International Conference on Flow Dynamics (ICFD2013) 258-259 2013/11/25

  170. Characterization of DBD Reactive Air Jet under High Temperature and High Pressure for Combustion Assist

    Hikaru Asano, Tomoki Nakajima, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 10th International Conference on Flow Dynamics (ICFD2013) 678-679 2013/11/25

  171. Investigation of Subsonic-Supersonic Hybrid-Stabilized Argon-Water Electric Arc With Inhomogeneous Mixing of Plasma Species: Parametric Numerical Study of Turbulence

    Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, Milan Hrabovsky, Tetyana Kavka

    Proceedings of the 13th International Symposium on Advanced Fluid Information (AFI-2013) 38-39 2013/11/25

  172. Kinetics of Excited States and Radicals in a Nanosecond Pulse Discharge and Afterglow in Nitrogen and Air

    Ivan Shkurenkov, David Burnette, Walter R. Lempert, Igor V. Adamovich, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 13th International Symposium on Advanced Fluid Information (AFI-2013) 40-41 2013/11/25

  173. Solution Particle Process Using Advanced Hybrid Plasma Flow System

    Juyong Jang, Hidemasa Takana, Yasutaka Ando, Oleg P. Solonenko, Hideya Nishiyama

    Proceedings of the 13th International Symposium on Advanced Fluid Information (AFI-2013) 116-117 2013/11/25

  174. Computational Simulation of Highly Reactive DBD Plasma for Combustion Enhancement Peer-reviewed

    Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 12th International Conference on Fluid Control, Measurements, and Visualization (FLUCOME 2013), OS13-02-1 USB (5p) 2013/11

  175. Optimization of Transfer and Non-Transfer Arc Torches at Different Operation Conditions by Flow Patterns Visualization Peer-reviewed

    Oleg P. Solonenko, Hideya Nishiyama, Andrey V. Smirnov, Hidemasa Takana, Juyong Jang

    Proceedings of the 12th International Conference on Fluid Control, Measurements, and Visualization (FLUCOME 2013), OS13-04-1 USB (10p) 2013/11

  176. Parametric Numerical Study of Turbulence in a Hybrid-Stabilized Argon-Water Electric Arc Under Subsonic-Supersonic Plasma Flow Regimes Peer-reviewed

    Jili Jenista, Hidemasa Takana, Hideya Nishiyama, Milada Bartlova, Vladimir Aubrecht, Petr Krenek

    Proceedings of the 12th International Conference on Fluid Control, Measurements, and Visualization (FLUCOME 2013), OS13-05-1 USB (10p) 2013/11

  177. ナノパルス放電による内燃機関燃焼促進に関する数値シミュレーション

    高奈秀匡, 西山秀哉

    自動車技術会2013年秋季大会学術講演会前刷集 (117-13) 13-15 2013/10/24

  178. パルス放電ジェットの可視化と水処理

    篠木祥平, 新沼啓, 高奈秀匡, 西山秀哉

    可視化情報学会可視化情報全国講演会会津2013論文集 253-254 2013/09/27

  179. パルス放電気泡ジェットの挙動と酢酸分解特性

    篠木祥平, 新沼啓, 高奈秀匡, 西山秀哉

    平成25年電気学会基礎・材料・共通部門大会講演論文集, 13-B-p-1 CD-ROM 2013/09/13

  180. ストリーマ放電を伴う気泡ジェットの生成と難分解性有機物の処理

    篠木祥平, 新沼啓, 高奈秀匡, 西山秀哉

    日本混相流学会混相流シンポジウム2013講演論文集, A224 USB 2013/08/10

  181. Preparation of Carbon-Doped TiO2 Nanopowder Synthesized by Droplet Injection of Solution Precursor in a DC-RF Hybrid Plasma Flow System Peer-reviewed

    Juyong Jang, Hidemasa Takana, Yasutaka Ando, Oleg P. Solonenko, Hideya Nishiyama

    JOURNAL OF THERMAL SPRAY TECHNOLOGY 22 (6) 974-982 2013/08

    DOI: 10.1007/s11666-013-9941-8  

    ISSN: 1059-9630

  182. Numerical Study on Nano-Second Pulse Dielectric Barrier Discharge for Plasma Assisted Combustion Peer-reviewed

    Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 21st International Symposium on Plasma Chemistry, Cairns, Australia, ID585 2013/08

  183. Characteristics of DBD Air Jet under High Temperature and High Pressure for Combustion Assist in an Internal Engine Peer-reviewed

    Hideya Nishiyama, Hikaru Asano, Sho Murakawa, Hidemasa Takana, Tomoki Nakajima

    Proceedings of the 21st International Symposium on Plasma Chemistry, Cairns, Australia, ID100 2013/08

  184. Numerical Simulation of High-energy Nano-second Pulse DBD for Combustion Enhancement in Internal Engine Invited

    Hidemasa Tanaka, Hideya Nishiyama

    Proceedings of the 31th International Conference on Phenomena in Ionized Gases (ICPIG-2013), Granada USB 2013/07

  185. Characterization of DBD Multiple Bubble Jets for Methylene Blue Decolorization Peer-reviewed

    Hideya Nishiyama, Ryosuke Nagai, Kei Niinuma, Hidemasa Takana

    Journal of Fluid Science and Technology 8 (1) 65-74 2013/03/28

    Publisher: The Japan Society of Mechanical Engineers

    DOI: 10.1299/jfst.8.65  

    ISSN: 1880-5558

    More details Close

    The discharge characteristics and bubble dynamics of argon multiple bubble jets, in which a streamer is generated by a DC pulsed discharge, have been experimentally clarified through visualization analysis. The decolorization characteristics of a methylene blue solution and the properties of a treated solution using multiple bubbles jets, including argon, oxygen and air, have also been clarified. There is complex streamer behavior in a bubble in which streamer propagation is along the interface of an issuing bubble. O and OH radicals during streamer discharge in Ar and O2 bubbles were detected clearly near the interface of a breaking up bubble by spectroscopic measurement. Finally, the decolorization efficiency by O and OH radicals and ozone in a pulsed discharge multiple bubble jets are estimated.

  186. 小さな磁石の磁極間に保持された微小磁性流体液滴の交流磁場応答

    高松玲紀, 須藤誠一, 高奈秀匡, 西山秀哉

    日本機械学会東北支部第48期総会・講演会講演論文集 2013 (1) 78-79 2013/03

  187. 漏洩遮断のための分岐管内MR流体の流動特性評価

    原田真琴, 高奈秀匡, 西山秀哉

    日本機械学会東北支部第48期総会・講演会講演論文集 2013 (1) 154-155 2013/03

  188. Evaluation of highly functional TiO2 synthesized by solution precursor spraying in a DC-RF hybrid plasma flow system

    J. Jang, H. Takana, Y. Ando, O. P. Solonenko, H. Nishiyama

    Journal of Physics: Conference Series 441 (1) 271 2013

    Publisher: Institute of Physics Publishing

    DOI: 10.1088/1742-6596/441/1/012032  

    ISSN: 1742-6596 1742-6588

  189. Analysis of nano-second pulse dbd plasma structure and energy efficiency evaluation for internal engine combustion enhancement Peer-reviewed

    Hidemasa Takana, Hideya Nishiyama

    Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B 79 (801) 1005-1015 2013

    DOI: 10.1299/kikaib.79.1005  

    ISSN: 0387-5016

  190. Evaluation of highly functional TiO2 synthesized by solution precursor spraying in a DC-RF hybrid plasma flow system Peer-reviewed

    J. Jang, H. Takana, Y. Ando, O. P. Solonenko, H. Nishiyama

    Journal of Physics: Conference Series 441 (1) 012032 2013

    Publisher: Institute of Physics Publishing

    DOI: 10.1088/1742-6596/441/1/012032  

    ISSN: 1742-6596 1742-6588

  191. The influence of turbulence on characteristics of a hybrid-stabilized argon-water electric arc Peer-reviewed

    Jiří Jeništa, Hidemasa Takana, Hideya Nishiyama, Milada Bartlová, Vladimír Aubrecht, Petr Křenek

    Journal of Thermal Science and Technology 8 (2) 435-447 2013

    DOI: 10.1299/jtst.8.435  

    ISSN: 1880-5566

  192. 交流磁場下の磁性流体ホールの光入出力特性

    篠崎成大, 須藤誠一, 高奈秀匡, 西山秀哉

    日本機械学会第90期流体工学部門講演会講演論文集 (12-40) 109-110 2012/11

  193. 液相原料噴霧注入型DC-RF ハイブリットプラズマ流動システムによる高機能性チタン粒子の創製と評価

    張柱鏞, 高奈秀匡, 安藤康高, Oleg P. Solonenko, 西山秀哉

    日本機械学会第90期流体工学部門講演会講演論文集 (12-40) 115-116 2012/11

  194. Radical Production Characteristics by DBD Plasma at High Pressure and High Temperature Conditions

    Hidemasa Takana

    Abstracts of International Plasma Engineering for Nano Forum 2012 25-39 2012/11

  195. 高温・高圧下でのDBD空気プラズマ流の反応性流動特性

    西山秀哉, 浅野光, 村川翔, 高奈秀匡

    日本機械学会2012年度年次大会講演論文集, S055034 CD-ROM 2012/09

  196. 高温・高圧下における空気・メタンDBD放電によるラジカル生成特性

    高奈秀匡, 田中康規, 西山秀哉

    日本機械学会2012年度年次大会講演論文集, S055035 CD-ROM 2012/09

  197. Advancement of In-Flight Alumina Powder Spheroidization Process with Water Droplet Injection Using a Small Power DC-RF Hybrid Plasma Flow System Peer-reviewed

    Juyong Jang, Hidemasa Takana, Sangkyu Park, Hideya Nishiyama

    JOURNAL OF THERMAL SPRAY TECHNOLOGY 21 (5) 900-907 2012/09

    DOI: 10.1007/s11666-012-9751-4  

    ISSN: 1059-9630

  198. Synthesis of Functional Nano-Powder through Solution Precursor Plasma Spraying in a DC-RF Hybrid Plasma Flow System

    Juyong Jang, Hidemasa Takana, Yasutaka Ando, Oleg P. Solonenko, Hideya Nishiyama

    Proceedings of the 9th International Conference on Flow Dynamics (ICFD2012), OS11-15 USB 2012/09

  199. The Influence of Turbulence on Characteristics of a Hybrid-Stabilized Argon-Water Electric Arc

    Jili Jenista, Hidemasa Takana, Hideya Nishiyama, Milada Bartlova, Vladimir Aubrecht, Petr Krenek

    Proceedings of the 9th International Conference on Flow Dynamics (ICFD2012), PS3-9 USB 2012/09

  200. Streamer Dynamics for Radical Generation in Air/Methane Mixture under High Temperature and High Pressure

    Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 9th International Conference on Flow Dynamics (ICFD2012), PS3-14 USB 2012/09

  201. Micro System of Vibration Generator of Magnetic Fluid Droplet Driven by Alternating Magnetic Field

    Sota Inomata, Seiichi Sudo, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 9th International Conference on Flow Dynamics (ICFD2012), OS5-18 USB 2012/09

  202. Optical Characteristics of Magnetic Fluid Hole in Alternating Fields

    Michihiro Shinozaki, Seiichi Sudo, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 9th International Conference on Flow Dynamics (ICFD2012), OS5-21 USB 2012/09

  203. Investigation of Subsonic-Supersonic Hybrid-Stabilized Argon-Water Electric Arc With Inhomogeneous Mixing of Plasma Species: Role of Turbulence and Radiative Transfer Method

    Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, Milan Hrabovsky, Tetyana Kavka

    Proceedings of the 12th International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration (AFI/TFI2012) 68-69 2012/09

  204. Studies on Non-Equilibrium Feature of Radio-Frequency Helium Plasma Flow at Atmospheric-Pressure

    Hidemasa Takana, Hideya Nishiyama, Zhi-Bin Wang, Pei-Si Le, He-Ping Li, Cheng-Yu Bao

    Proceedings of the 12th International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration (AFI/TFI2012) 78-79 2012/09

  205. Dynamics of Micro Magnetic Fluid Hole in an Alternating Field

    Michihiro Shinozaki, Seiichi Sudo, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 12th International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration (AFI/TFI2012) 150-151 2012/09

  206. 空気・メタンDBD放電によるラジカル生成に与える温度および圧力の効果

    高奈秀匡, 田中康規, 西山秀哉

    日本混相流学会年会講演会2012(柏)講演論文集, D312 320-321 2012/08

  207. ストリーマ放電を伴う多点バブルジェットシステムによる分解特性

    新沼啓, 高奈秀匡, 西山秀哉

    日本機械学会第22回環境工学総合シンポジウム2012講演論文集 (12-6) 215-216 2012/07

  208. Micro Reciprocating Actuator Using Magnetic Fluid and Two Permanent Magnets Peer-reviewed

    Seiichi Sudo, Takumi Goto, Tetsuya Yano, Muneo Futamura, Hidemasa Takana, Hideya Nishiyama

    Journal of Solid Mechanics and Materials Engineering 6 (6) 555-564 2012/06

    Publisher: The Japan Society of Mechanical Engineers

    DOI: 10.1299/jmmp.6.555  

    ISSN: 1880-9871

    More details Close

    This paper is concerned with the development of micro actuator using magnetic materials. The micro actuator is composed of two permanent NdFeB magnets and kerosene-based magnetic fluid, Ferricolloid HC-50. The actuator is characterized by wireless operation with alternating magnetic field. The driving characteristics of micro magnetic fluid actuator were examined by using a high-speed digital video camera system. The dynamic behavior of magnetic fluid surface at higher frequencies of external alternating field was also examined. It was found that the amplitude of reciprocating actuator depends on significantly frequency and amplitude of alternating magnetic field. The effect of the volume of magnetic fluid adsorbed to the permanent magnets was also examined. The detail of surface oscillation of magnetic fluid subjected to alternating magnetic field was also revealed experimentally.

  209. Characterization of Reactive Species Production by Air‐Methane DBD at High Pressure and High Temperature Conditions

    Hidemasa Takana, Yasunori Tanaka, Hideya Nishiyama

    Proceedings of the 8th International Symposium on Non-Thermal Plasma Technology (ISNTP-8), S8-O3 USB 2012/06

  210. 放電による高活性多点バブルジェットシステムの開発と水質浄化特性

    新沼啓, 中嶋智樹, 高奈秀匡, 西山秀哉

    日本機械学会東北支部第47期総会・講演会講演論文集 (2012-1) 10-11 2012/03

  211. 磁性流体と円環状磁石によって形成されたホールの交流磁場応答

    篠崎成大, 須藤誠一, 高奈秀匡, 西山秀哉

    日本機械学会東北支部第47期総会・講演会講演論文集 (2012-1) 46-47 2012/03

  212. 高温・高圧下における反応性促進のための非平衡空気プラズマ流の特性解析

    村川翔, 中嶋智樹, 高奈秀匡, 西山秀哉

    日本機械学会東北支部第47期総会・講演会講演論文集 (2012-1) 212-213 2012/03

  213. プラズマチューブ内における微粒子の撹拌および搬送特性 Peer-reviewed

    篠原圭介, 高奈秀匡, 西山秀哉

    混相流研究の進展 25 (5) 495-500 2012/03

    DOI: 10.3811/jjmf.25.495  

  214. 磁化された針端に吸着した磁性流体液滴の交流磁場応答 Peer-reviewed

    猪股聡太, 須藤誠一, 高奈秀匡, 西山秀哉

    日本AEM学会誌 20 (1) 174-180 2012/03

  215. 小さい円柱状永久磁石に吸着した磁性流体の界面振動の周波数特性 Peer-reviewed

    須藤誠一, 浅野大作, 高奈秀匡, 西山秀哉

    日本AEM学会誌 20 (1) 90-96 2012/03

  216. Plasma Flow Dynamics and Alumina Powder Spheroidization Process in a Low Power DC-RF Hybrid Plasma Flow System by Water Droplet Injection

    Juyong Jang, Hidemasa Takana, Sangkyu Park, Hideya Nishiyama

    Proceedings of the 8th KSME-JSME Thermal and Fluids Engineering Conference, FR15-001 USB 2012/03

  217. A nonequilibrium argon-oxygen planar plasma jet using a half-confined dielectric barrier duct in ambient air Peer-reviewed

    Qing Li, Hidemasa Takana, Yi-Kang Pu, Hideya Nishiyama

    APPLIED PHYSICS LETTERS 100 (13) 133501-1-133501-4 2012/03

    DOI: 10.1063/1.3698135  

    ISSN: 0003-6951

  218. The dynamic behaviour of magnetic levitating magnet-magnetic fluid element in alternating magnetic field

    Seiichi Sudo, Takumi Goto, Michihiro Shinozaki, Toshiya Kainuma, Hidemasa Takana, Hideya Nishiyama

    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS 39 (1-4) 595-601 2012

    DOI: 10.3233/JAE-2012-1516  

    ISSN: 1383-5416

  219. Computational simulation of reactive species production by methane-air DBD at high pressure and high temperature Peer-reviewed

    H. Takana, Y. Tanaka, H. Nishiyama

    EPL 97 (2) 25001-1-25001-4 2012/01

    DOI: 10.1209/0295-5075/97/25001  

    ISSN: 0295-5075

  220. Alternating Magnetic Field Responses of Magnetic Fluid Drop Adsorbed to a Small Permanent Magnet Peer-reviewed

    Seiichi Sudo, Daisaku Asano, Hidemasa Takana, Hideya Nishiyama

    APPLIED ELECTROMAGNETIC ENGINEERING FOR MAGNETIC, SUPERCONDUCTING AND NANO MATERIALS 721 102-+ 2012

    DOI: 10.4028/www.scientific.net/MSF.721.102  

    ISSN: 0255-5476

  221. Vibration Characteristics of Magnetic Fluid Droplet Adsorbed to Magnetized Needlepoint in Alternating Magnetic Field Peer-reviewed

    Sota Inomata, Seiichi Sudo, Hidemasa Takana, Hideya Nishiyama

    APPLIED ELECTROMAGNETIC ENGINEERING FOR MAGNETIC, SUPERCONDUCTING AND NANO MATERIALS 721 108-+ 2012

    DOI: 10.4028/www.scientific.net/MSF.721.108  

    ISSN: 0255-5476

  222. The dynamic behaviour of magnetic levitating magnet-magnetic fluid element in alternating magnetic field Peer-reviewed

    Seiichi Sudo, Takumi Goto, Michihiro Shinozaki, Toshiya Kainuma, Hidemasa Takana, Hideya Nishiyama

    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS 39 (1-4) 595-601 2012

    DOI: 10.3233/JAE-2012-1516  

    ISSN: 1383-5416

  223. Integrated parametric study of a hybrid-stabilized argon-water arc under subsonic, transonic and supersonic plasma flow regimes Peer-reviewed

    J. Jenista, H. Takana, H. Nishiyama, M. Bartlova, V. Aubrecht, P. Krenek, M. Hrabovsky, T. Kavka, V. Sember, A. Maslani

    JOURNAL OF PHYSICS D-APPLIED PHYSICS 44 (43) 435204-1-435204-20 2011/11

    DOI: 10.1088/0022-3727/44/43/435204  

    ISSN: 0022-3727

    eISSN: 1361-6463

  224. Characterization of a Multiple Bubble Jet With a Streamer Discharge Peer-reviewed

    Hideya Nishiyama, Ryosuke Nagai, Hidemasa Takana

    IEEE TRANSACTIONS ON PLASMA SCIENCE 39 (11) 2660-2661 2011/11

    DOI: 10.1109/TPS.2011.2160367  

    ISSN: 0093-3813

  225. Computer Modeling of Radiative Transfer in Hybrid-Stabilized Argon-Water Electric Arc Peer-reviewed

    Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, Petr Krenek, Milada Bartlova, Vladimir Aubrecht

    IEEE TRANSACTIONS ON PLASMA SCIENCE 39 (11) 2892-2893 2011/11

    DOI: 10.1109/TPS.2011.2163087  

    ISSN: 0093-3813

  226. Investigation of Dielectric Barrier Discharge Planar Jets at Atmospheric Pressure

    Qing Li, Hidemasa Takana, Yi-Kang Pu, Hideya Nishiyama

    Proceedings of the 8th International Conference on Flow Dynamics (ICFD2011) 578-579 2011/11

  227. Advancement of Alumina Powder Spheroidization Process in a Low Power DC-RF Hybrid Plasma Flow System by Water Droplets Injection

    Juyong Jang, Hidemasa Takana, Sangkyu Park, Hideya Nishiyama

    Proceedings of the 8th International Conference on Flow Dynamics (ICFD2011) 594-595 2011/11

  228. Computational Study on Atmospheric RF Discharge with Kinetic-Fluid Integrated Model

    Zhi-Bin Wang, Pei-Si Le, He-Ping Li, Cheng-Yu Bao, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 11th International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration (AFI/TFI2011) 72-73 2011/11

  229. Radical Generation During Streamer Propagation in Methane/Air DBD Under High Pressure and High Temperature Conditions

    Hidemasa Takana, Yasunori Tanaka, Hideya Nishiyama

    Proceedings of the 11th International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration (AFI/TFI2011) 74-75 2011/11

  230. Investigation of Supersonic Hybrid-Stabilized Argon-Water Arc for Biomass Gasification: The Role of Radiation Transfer Method Used in Computer Simulation

    Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, Milan Hrabovsky

    Proceedings of the 11th International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration (AFI/TFI2011) 76-77 2011/11

  231. Impact of Liquid Drops on Heated Grooved Surfaces

    Sivakumar Deivandren, Kazunari Katagiri, Tomoki Nakajima, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 11th International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration (AFI/TFI2011) 132-133 2011/11

  232. Oscillation Characteristics of Levitated Magnet-Magnetic Fluid System

    Michihiro Shinozaki, Seiichi Sudo, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 11th International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration (AFI/TFI2011) 142-143 2011/11

  233. パルス放電による多点バブルジェットの高機能化と水質浄化

    新沼啓, 長井亮介, 高奈秀匡, 西山秀哉

    日本機械学会東北支部第47期秋季講演会講演論文集 (2011-2) 322-323 2011/09/22

  234. 噴霧注入型DC-RFハイブリッドプラズマ流動システムの熱流動特性と微粒子球状化プロセス

    JANG Juyong, 高奈秀匡, 西山秀哉

    日本機械学会2011年度年次大会講演論文集, S052022 CD-ROM 2011/09/13

  235. A comparative numerical study of hybrid-stabilized argon-water electric arc Peer-reviewed

    Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, Milada Bartlova, Vladimir Aubrecht, Petr Krenek, Viktor Sember, Alan Maslani

    COMPUTER PHYSICS COMMUNICATIONS 182 (9) 1776-1783 2011/09

    DOI: 10.1016/j.cpc.2011.01.006  

    ISSN: 0010-4655

    eISSN: 1879-2944

  236. Micro Reciprocating Actuator Using Magnetic Fluid and Two Permanent Magnets

    Seiichi Sudo, Takumi Goto, Tetsuya Yano, Muneo Futamura, Hidemasa Takana, Hideya Nishiyama

    Proceedings of International Conference on Advanced Technology in Experimental Mechanics 2011 (ATEM'11) 6 (6) CD-ROM-564 2011/09

    Publisher: The Japan Society of Mechanical Engineers

    DOI: 10.1299/jmmp.6.555  

    ISSN: 1880-9871

    More details Close

    This paper is concerned with the development of micro actuator using magnetic materials. The micro actuator is composed of two permanent NdFeB magnets and kerosene-based magnetic fluid, Ferricolloid HC-50. The actuator is characterized by wireless operation with alternating magnetic field. The driving characteristics of micro magnetic fluid actuator were examined by using a high-speed digital video camera system. The dynamic behavior of magnetic fluid surface at higher frequencies of external alternating field was also examined. It was found that the amplitude of reciprocating actuator depends on significantly frequency and amplitude of alternating magnetic field. The effect of the volume of magnetic fluid adsorbed to the permanent magnets was also examined. The detail of surface oscillation of magnetic fluid subjected to alternating magnetic field was also revealed experimentally.

  237. 高温・高圧下における空気・メタン混合気中のストリーマ進展過程

    高奈秀匡, 田中康規, 西山秀哉

    日本混相流学会年会講演会2011講演論文集 328-329 2011/08/08

  238. プラズマチューブ内における微粒子の撹拌および搬送

    篠原圭介, 高奈秀匡, 西山秀哉

    日本混相流学会年会講演会2011講演論文集 396-397 2011/08/08

  239. プラズマを内包した多点バブルジェットの生成と水処理への応用

    新沼啓, 長井亮介, 高奈秀匡, 西山秀哉

    日本混相流学会年会講演会2011講演論文集 220-221 2011/08

  240. Advancement of Powder Spheroidization Process Using a Small Power DC-RF Hybrid Plasma Flow System by Sinusoidal Gas Injection Peer-reviewed

    Juyong Jang, Hidemasa Takana, Oleg P. Solonenko, Hideya Nishiyama

    Journal of Fluid Science and Technology 6 (5) 729-739 2011/07

    Publisher: The Japan Society of Mechanical Engineers

    DOI: 10.1299/jfst.6.729  

    ISSN: 1880-5558

    More details Close

    The effect of sinusoidal central gas injection on the in-flight alumina spheroidization process was experimentally clarified by using DC-RF hybrid plasma flow system under constant low input power. Spheroidization ratio was evaluated with correlating to frequency and amplitude of sinusoidal central gas injection, DC arc voltage, and particle size distribution. Spheroidization ratio improves through active mixing of DC-RF hybrid plasma flow with powder by injection of sinusoidal central gas for DC plasma jet forming. The maximum spheroidization ratio of 99 % for processed powder collected at z = 120 mm was obtained by giving the sinusoidal central gas injection at fc = 2 Hz with amplitude of ± 20 %.

  241. Characterization of Multiple Bubble Jets with Pulsed Discharge for Water Treatment

    Hideya Nishiyama, Ryosuke Nagai, Kei Niinuma, Hidemasa Takana

    Proceedings of 20th International Symposium on Plasma Chemistry, Philadelphia, LIQ03 CD-ROM 2011/07

  242. Effect of Liquid Droplets Injection on Powder Spheroidization Process Using a Low Power DC-RF Hybrid Plasma Flow System

    Juyong Jang, Hidemasa Takana, Sangkyu Park, Hideya Nishiyama

    Proceedings of 20th International Symposium on Plasma Chemistry, Philadelphia, THE23 CD-ROM 2011/07

  243. Quasi-Uniform Planar Plasma Jet Generated by Using an Atmospheric Pressure DBD Configuration

    Qing Li, Hidemasa Takana, Yi-Kang Pu, Hideya Nishiyama

    Proceedings of 20th International Symposium on Plasma Chemistry, Philadelphia, MM08 CD-ROM 2011/07

  244. Physicochemical Characteristics of Methane-Air Dielectric Barrier Discharge at High Pressure

    Hidemasa Takana, Yasunori Tanaka, Hideya Nishiyama

    Proceedings of 20th International Symposium on Plasma Chemistry, Philadelphia, AC02 CD-ROM 2011/07

  245. An atmospheric pressure quasiuniform planar plasma jet generated by using a dielectric barrier configuration Peer-reviewed

    Qing Li, Hidemasa Takana, Yi-Kang Pu, Hideya Nishiyama

    APPLIED PHYSICS LETTERS 98 (24) 241501-1-241501-3 2011/06

    DOI: 10.1063/1.3599845  

    ISSN: 0003-6951

  246. Experimental analysis on MR fluid channel flow dynamics with complex fluid-wall interactions Peer-reviewed

    Hideya Nishiyama, Hidemasa Takana, Keisuke Shinohara, Kotoe Mizuki, Kazunari Katagiri, Makoto Ohta

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 323 (10) 1293-1297 2011/05

    DOI: 10.1016/j.jmmm.2010.11.033  

    ISSN: 0304-8853

  247. The dynamic behavior of magnetic fluid adsorbed to small permanent magnet in alternating magnetic field Peer-reviewed

    Seiichi Sudo, Daisaku Asano, Hidemasa Takana, Hideya Nishiyama

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 323 (10) 1314-1318 2011/05

    DOI: 10.1016/j.jmmm.2010.11.037  

    ISSN: 0304-8853

  248. Water Treatment Characteristics Using Activated Air Microbubble Jet with Photochemical Reaction Peer-reviewed

    Tomohiro Shibata, Akira Ozaki, Hidemasa Takana, Hideya Nishiyama

    Journal of Fluid Science and Technology 6 (2) 242-251 2011/04

    Publisher: The Japan Society of Mechanical Engineers

    DOI: 10.1299/jfst.6.242  

    ISSN: 1880-5558

    More details Close

    The characteristics of functional activated air microbubble jet with UV irradiation are experimentally clarified for high performance of liquid decomposition. The decolorization of methylene blue solution improves by UV irradiation onto activated air microbubble jet for any solution pH. The effect of UV irradiation on decolorization is most intensive for neutral solution due to the enhanced radical generation through photochemical reaction.

  249. 磁性流体の吸着した2個の小磁石系の交流磁場応答

    後藤卓巳, 須藤誠一, 高奈秀匡, 西山秀哉

    日本機械学会東北支部第46期総会・講演会講演論文集 (2011-1) 8-9 2011/03

  250. ストリーマ放電によるバブルジェットの高機能化と水処理への応用

    長井亮介, 高奈秀匡, 西山秀哉

    日本機械学会東北支部第46期総会・講演会講演論文集 (2011-1) 218-219 2011/03

  251. Improvement of In-Flight Alumina Spheroidization Process Using a Small Power Argon DC-RF Hybrid Plasma Flow System by Helium Mixture Peer-reviewed

    Hidemasa Takana, Juyong Jang, Junji Igawa, Tomoki Nakajima, Oleg P. Solonenko, Hideya Nishiyama

    JOURNAL OF THERMAL SPRAY TECHNOLOGY 20 (3) 432-439 2011/03

    DOI: 10.1007/s11666-010-9547-3  

    ISSN: 1059-9630

  252. Surface Oscillations of Magnetic Fluid Droplet Adsorbed to Magnetized Needlepoint in Alternating Magnetic Field

    Seiichi Sudo, Sohta Inomata, Daisaku Asano, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 10th International Symposium on Advanced Fluid Information and Transdiscriplinary Fluid Integration (AFI/TFI-2010) 152-153 2010/11/02

  253. Chemical Kinetic Study of Methane-Air Plasma Flow at High Pressure Peer-reviewed

    Hidemasa Takana, Yasunori Tanaka, Hideya Nishiyama

    Proceedings of 7th International Conference on Flow Dynamics 718-719 2010/11

  254. Advancement of Powder Spheroidization Process Using a Small Power DC-RF Hybrid Plasma Flow System by Helium Mixture and Sinusoidal Gas Injection Peer-reviewed

    Juyong Jang, Hidemasa Takana, Oleg P. Solonenko, Hideya Nishiyama

    Proceedings of 7th International Conference on Flow Dynamics 724-725 2010/11

  255. Surface Disintegration of Magnetic Fluid Adsorbed to Small Magnet in Alternating Magnetic Field Peer-reviewed

    Seiichi Sudo, Daisaku Asano, Hidemasa Takana, Hideya Nishiyama

    Proceedings of 7th International Conference on Flow Dynamics 288-289 2010/11

  256. Liquid Decomposition Characteristics by Activated Air Microbubble Jet with Photochemical Reaction Peer-reviewed

    Tomohiro Shibata, Akira Ozaki, Hidemasa Takana, Hideya Nishiyama

    Proceedings of 7th International Conference on Flow Dynamics 552-553 2010/11

  257. Investigation of Supersonic Hybrid-Stabilized Argon-Water Arc for Biomass Gasification: A Comparative Numerical Study Peer-reviewed

    Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, Milan Hrabovsky

    Proceedings of the 10th International Symposium on Advanced Fluid Information and Transdiscriplinary Fluid Integration (AFI/TFI-2010) 54-55 2010/11

  258. Fundamental Study of Methane-Air Plasma Flow at High Pressure Peer-reviewed

    Hidemasa Takana, Yasunori Tanaka, Hideya Nishiyama

    Proceedings of the 10th International Symposium on Advanced Fluid Information and Transdiscriplinary Fluid Integration (AFI/TFI-2010) 56-57 2010/11

  259. Investigation on Splats Formed from the Impact of Molten Tin Drops on Grooved Surfaces Peer-reviewed

    Deivandren Sivakumar, Kazunari Katagiri, Tomoki Nakajima, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 10th International Symposium on Advanced Fluid Information and Transdiscriplinary Fluid Integration (AFI/TFI-2010) 104-105 2010/11

  260. Simulations on a Radio-Frequency, Atmospheric-Pressure Glow Discharge Using an Integrated Kinetic-Fluid Model Peer-reviewed

    Pei-Si Le, Zhi-Bin Wang, He-Ping Li, Cheng-Yu Bao, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 10th International Symposium on Advanced Fluid Information and Transdiscriplinary Fluid Integration (AFI/TFI-2010) 142-143 2010/11

  261. 省電力DC-RFハイブリッドプラズマ流動システムにおけるアルミナ球形化プロセスに与える供給ガス変動効果

    Juyong Jang, 高奈秀匡, 西山秀哉

    日本機械学会第88期流体工学部門講演会講演論文集 10 (6) 163-164 2010/10/29

    Publisher: The Japan Society of Mechanical Engineers

    ISSN: 1348-2882

    More details Close

    The effect of sinusoidal central gas injection on the in-flight alumina spheroidization process was experimentally clarified by using DC-RF hybrid plasma flow system under a small input power. Spheroidization ratio was evaluated with correlating to frequency and amplitude of sinusoidal central gas injection, DC arc voltage, and also particle size distribution. Spheroidization ratio improves through active mixing of DC-RF hybrid plasma flow with powder. The maximum spheroidization ratio of 99 % for powder collected at z = 120 mm was obtained at f_c = 2 Hz with amplitude of ± 20 %.

  262. 静電効果による管内反応性気体中の微粒子攪拌・搬送特性

    篠原圭介, 高奈秀匡, 西山秀哉

    日本機械学会第88期流体工学部門講演会講演論文集 10 (16) 165-166 2010/10/29

    Publisher: The Japan Society of Mechanical Engineers

    ISSN: 1348-2882

    More details Close

    The innovative technology is proposed for micro particle mixing and transportation in a tube by electrostatic force and by induced flow with dielectric barrier discharge. The tube, so called DBD plasma tube, is composed of a pair of spiral electrodes both inside and outside of the tube for the generation of DBD plasma on the inner surface of a tube. The fundamental characteristics of DBD plasma tube such as discharge characteristics, induced flow velocity and ozone concentration were clarified experimentally. Furthermore, three dimensional potential distribution inside the tube was shown by computational simulation.

  263. 球状磁石-磁性流体系のウオーターエントリー現象

    須藤誠一, 高柳拓吉, 高奈秀匡, 西山秀哉

    日本機械学会第88期流体工学部門講演会講演論文集 10 (16) 167-168 2010/10/29

  264. 高活性空気マイクロバブルジェットの液体分解特性と紫外線照射による高機能化

    柴田智弘, 尾崎晃, 高奈秀匡, 西山秀哉

    日本機械学会第88期流体工学部門講演会講演論文集 10 (16) 127-128 2010/10/29

    Publisher: The Japan Society of Mechanical Engineers

    ISSN: 1348-2882

    More details Close

    The characteristics of functionalized microbubble jet with encapsulated activated air generated by DBD and UV irradiation were experimentally clarified for high performance liquid decomposition. The bleaching performance of methylene blue solution is enhanced by UV irradiation on microbubble jet with activated air for any solution pH. The effect of UV irradiation on bleaching is enhanced the most for neutral solution by production of radicals through photochemical reaction.

  265. 管内MR流体流動における壁面相互作用に関する基礎特性

    西山秀哉, 高奈秀匡, 篠原圭介, 水木琴絵, 片桐一成, 太田信

    日本レオロジー学会第58回レオロジー討論会講演要旨集 312-313 2010/10/06

  266. 混合ガスおよび供給ガス変動による省電力DC-RFハイブリッドプラズマ流動システムにおける球状化プロセスの高性能化

    Juyong Jang, 高奈秀匡, 西山秀哉

    電気学会新エネルギー・環境研究会資料, FTE-10-049 2010 (41) 49-53 2010/08/26

  267. 微粒子静電加速および基板形状最適化による超音速微粒子流動加工の高性能化

    高奈秀匡, 李紅岩, 小川和洋, 西山秀哉

    電気学会新エネルギー・環境研究会資料, FTE-10-050 2010 (41) 55-60 2010/08/26

  268. Experimental Analysis on MR Fluid Channel Flow Dynamics with Complex Fluid-Wall Interactions Peer-reviewed

    Hideya Nishiyama, Hidemasa Takana, Keisuke Shinohara, Kotoe Mizuki, Kazunari Katagiri, Makoto Ohta

    Abstract Book of the 12th International Conference on Magnetic Fluids (ICMF12) 80-81 2010/08

  269. The Dynamic Behavior of Magnetic Fluid Adsorbed to Small Permanent Magnet in Alternating Magnetic Field Peer-reviewed

    Seiichi Sudo, Daisaku Asano, Hidemasa Takana, Hideya Nishiyama

    Abstract Book of the 12th International Conference on Magnetic Fluids (ICMF12) 268-269 2010/08

  270. 光化学反応とプラズマの援用によるマイクロバブルジェットの高機能化と液体分解特性

    柴田智弘, 尾崎晃, 高奈秀匡, 西山秀哉

    日本混相流学会年会講演会2010(浜松)講演論文集 254-255 2010/07/17

  271. Integrated Parametric Study of Hybrid-stabilized Argon-Water Arc under Subsonic and Supersonic Regimes Peer-reviewed

    Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, Milada Bartlova, Vladimir Aubrecht, Petr Krenek, Milan Hrabovsky, Tetyana Kavka, Viktor Sember, Alan Maslani

    Meta Centrum Year Book 2009, Prague:CESNET 2010 53-60 2010/06

  272. A Comparative Numerical Study of Hybrid-Stabilized Argon-Water Electric Arc Peer-reviewed

    Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, Milada Bartlova, Vladimir Aubrecht, Petr Krenek, Milan Hrabovsky, Tetyana Kavka, Viktor Sember, Alan Maslani

    Abstracts of the Conference on Computational Physics (CCP2010) 350-351 2010/06

  273. 高活性マイクロバブルジェットの機能性と液体分解特性

    西山秀哉, 高奈秀匡, 尾崎晃, 中嶋智樹

    日本機械学会東北支部第45期総会・講演会 2010 (2010-1) 222-223 2010/03/12

    Publisher: The Japan Society of Mechanical Engineers

  274. Computational and Experimental Studies on Cavity Filling Process by Cold Gas Dynamic Spray Peer-reviewed

    Hidemasa Takana, HongYang Li, Kazuhiro Ogawa, Tsunemoto Kuriyagawa, Hideya Nishiyama

    JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME 132 (2) 021302-1-021302-9 2010/02

    DOI: 10.1115/1.4000802  

    ISSN: 0098-2202

  275. Parametric Study of Hybrid Argon-Water Stabilized Arc under Subsonic and Supersonic Regimes Peer-reviewed

    Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, Milada Bartlova, Vladimir Aubrecht, Milan Hrabovsky

    High Temperature Materials and Processes 29 (1) 55-70 2010/01

  276. コールドスプレーによるキャビティー充填加工の計算・実験統合解析

    高奈秀匡, 李紅岩, 小川和洋, 西山秀哉

    2009年度溶射合同講演大会(日本溶射協会第90回(2009年度秋季)全国講演大会・(社)高温学会溶射部会第18回溶射総合討論会)講演論文集 55-56 2009/12

  277. 粒子画像流速測定法(PIV)を用いたコールドスプレー粒子の速度評価

    三上範大, 蓋暁輝, 小川和洋, 高奈秀匡, 西山秀哉, 石井清一, 松村哲, 安木政史

    2009年度溶射合同講演論文集 57-58 2009/12

  278. Modelling of Supersonic and Turbulent Hybrid Arc for Biomass Gasification

    Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, Milan Hrabovsky

    Proceedings of the 9th International Symposium on Advanced Fuild Information and Transdiscriplinary Fluid Integration 40-41 2009/11

  279. Computational Simulation of Highly Reactive Air Plasma Jet under High Pressure Conditions Invited Peer-reviewed

    Hidemasa Takana, Yasunori Tanaka, Hideya Nishiyama

    Proceedings of the 9th International Symposium on Advanced Fuild Information and Transdiscriplinary Fluid Integration 42-43 2009/11

  280. Impact and Solidification of Molten Metal Droplets on Stainless Steel Surfaces Patterned with Unidirectional Parallel Microgrooves

    Deivandren Sivakumar, Kazunari Katagiri, Tomoki Nakajima, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 9th International Symposium on Advanced Fuild Information and Transdiscriplinary Fluid Integration 74-75 2009/11

  281. Computational and Experimental Studies on Supersonic Particulate Jet Process for Cavity Filling

    Hidemasa Takana, Hong Yang Li, Kazuhiro Ogawa, Tsunemoto Kuriyagawa, Hideya Nishiyama

    Proceedings of the 9th International Symposium on Advanced Fuild Information and Transdiscriplinary Fluid Integration 122-123 2009/11

  282. Impact of Low Weber Number Molten Tin Droplets on Solid Surfaces Comprising Microgrooves

    Deivandren Sivakumar, Kazunari Katagiri, Tomoki Nakajima, Hidemasa Takana, Hideya Nishiyama

    Proceedings of 6th International Conference on Flow Dynamics 130-131 2009/11

  283. Integrated Parametric Study of Hybrid-Stabilized Argon-Water Arc under Subsonic and Supersonic Regimes

    Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, M. Bartlova, V. Aubrecht, P. Krenek, Milan Hrabovsky, T. Kavka, V. Sember, A. Maslani

    Proceedings of 6th International Conference on Flow Dynamics 156-157 2009/11

  284. Performance Enhancement of In-flight Particle Spheroidization Process with a Small Power DC-RF Hybrid Plasma Flow System

    Ju Yong Jang, Junji Igawa, Tomoki Nakajima, Hidemasa Takana, Oleg Soloenko, Hideya Nishiyama

    Proceedings of 6th International Conference on Flow Dynamics 314-315 2009/11

  285. 省電力型DC-RFハイブリッドプラズマ流動システムにおける微粒子熱流動と球形化プロセス

    高奈秀匡, 井川純二, ジャン・ジュヨン, 中嶋智樹, 西山秀哉

    可視化情報全国講演会(米沢2009)講演論文集 29 (2) 19-22 2009/10/24

    Publisher:

    ISSN: 0916-4731

  286. 管内MR流体流動と壁面干渉に関する実験解析

    西山秀哉, 高奈秀匡, 水木琴絵, 篠原圭介, 片桐一成

    日本機械学会2009年度年次大会講演論文集 2 (09-01) 75-76 2009/09/12

    Publisher: The Japan Society of Mechanical Engineers

    DOI: 10.1299/jsmemecjo.2009.2.0_75  

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    Magneto-rheological fluid (MR fluid) is one of the functional fluids which responds to the magnetic field and exhibits a semi-rigid behavior even under a small magnetic field strength. Then, MR fluid plugging performance by aggregation of magnetized particles in MRF is recently expected to be one of the most promising applications to medical or safety devices, such as blood flow control or steam shut-down valve. In this study, dynamic response of MRF plugging in pressure mode with fluid/wall interactions was experimentally investigated, considering the effects of applied magnetic flux density, piston head velocity, wall surface structure and elasticity of biological tube. The final objective of this study is to provide the fundamental data for the novel applications of MR plugging performance to medical or safety devices for flow control.

  287. DBD放電を用いた高活性空気ジェットの特性と液体浄化への応用

    西山秀哉, 高奈秀匡, 岩渕良彦, 長井亮介, 尾崎晃

    日本機械学会2009年度年次大会講演論文集 2 (09-01) 113-114 2009/09/12

    Publisher: The Japan Society of Mechanical Engineers

    DOI: 10.1299/jsmemecjo.2009.2.0_113  

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    Recently, the utilization of highly reactive jet including ozone has been paid attention for a water purification. In this study, the fundamental characteristics of DBD air jet have been made clear by clarifying the effects of operating conditions, dielectric materials and electrode gap on the ozone generation. Furthermore, the decolorization of methylene blue solution has been successfully demonstrated by microbubbling the reactive air jet generated by DBD torch into the solution for a water purification.

  288. DBD放電による空気マイクロバブルジェットの高機能化と特性解析

    尾崎晃, 岩渕良彦, 長井亮介, 高奈秀匡, 西山秀哉

    日本混相流学会年会講演会2009熊本講演論文集 222-223 2009/08/09

  289. 生体材料を活用した管内MR流体流動の動的応答と高機能化

    篠原圭介, 水木琴絵, 片桐一成, 高奈秀匡, 太田信, 西山秀哉

    日本混相流学会年会講演会2009講演論文集 116-117 2009/08/07

  290. 省電力DC-RFハイブリッドプラズマ流動システムの熱流動特性とマイクロ粒子プロセス評価

    張柱鏞, 井川純二, 中嶋智樹, 高奈秀匡, 西山秀哉

    日本混相流学会年会講演会2009熊本講演論文集 120-121 2009/08/07

  291. Dynamic Response of Magneto-Rheological Fluid Channel Flow with Fluid-Wall Interaction Peer-reviewed

    Hideya Nishiyama, Hidemasa Takana, Kotoe Mizuki, Hannah Weisbecker, Stefan Odenbach

    Journal of Physics: Conference Series 149 (7) 012077-1-012077-4 2009/07

  292. In-flight Al2O3 Spheroidization Process with a Constant Small Power DC-RF Hybrid Ar/He Plasma Flow System

    H. Takana, J.Igawa, J. Jang, T. Nakajima, O. Solonenko, H. Nishiyama

    Proc. of the 19th Int. Symposium on Plasma Chemistry,(2009),CD-ROM 2009/07

  293. Characteristics of Atmospheric Reactive Air Jet Generated by Dielectric Barrier Discharge for Industrial Applications

    H. Nishiyama, H. Takana, Y. Iwabuchi, H. Shimizu

    Proc.of the 19th Symposiun on Plasma Chemistry,(2009),CD-ROM 2009/07

  294. 壁面干渉効果を活用した管内MR流体プラグシステムの高機能化

    篠原圭介, 水木琴絵, 片桐一成, 高奈秀匡, 西山秀哉

    平成21年度春季フルードパワーシステム講演会講演論文集 104-106 2009/06/19

  295. Integrated experimental and numerical analysis of an atmospheric pressure reactive air plasma jet generated by dielectric barrier discharge Peer-reviewed

    Hideya Nishiyama, Hidemasa Takana, Hirofumi Shimizu, Yoshihiko Iwabuchi, Yoshikatsu Nakano

    International Journal of Emerging Multidisciplinary Fluid Sciences 1 (2) 101-114 2009/06/01

    DOI: 10.1260/175683109788707481  

    ISSN: 1756-8315

  296. Activated air plasma flow generated by pulsed arc discharge for combustion enhancement Peer-reviewed

    H. Nishiyama, K. Tsuri, H. Shimizu, K. Katagiri, H. Takana, Y. Nakano

    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 52 (7-8) 1778-1785 2009/03

    DOI: 10.1016/j.ijheatmasstransfer.2008.10.009  

    ISSN: 0017-9310

  297. S0502-2-3 Thermofluid Characteristics and Spheridization Process in a Small Power DC-RF Hybrid Plasma Flow System

    TAKANA Hidemasa, IGAWA Junji, JANG Ju-yong, NAKAJIMA Tomoki, NISHIYAMA Hideya

    The proceedings of the JSME annual meeting 2009 115-116 2009

    Publisher: The Japan Society of Mechanical Engineers

    DOI: 10.1299/jsmemecjo.2009.2.0_115  

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    The purpose of this paper is to clarify experimentally the effects of helium gas addition into argon gas and DC plasma jet on the in-flight alumina spheroidization process using DC-RE hybrid plasma flow system under a small input power. Spheroidization ratio is evaluated through SEM image analysis relating to added helium gas flow rate, plasma enthalpy, and also particle velocity and particle temperature. Spheroidization ratio increases through enhanced heat exchange between Ar/He plasma and particles, and also through decrease in DC jet velocity. Spheroidization ratio of 82.7% is obtained with as small as 4% of helium addition into argon central gas.

  298. COMPUTATIONAL AND EXPERIMENTAL STUDIES ON CAVITY FILLING PROCESS BY COLD GAS DYNAMIC SPRAY Peer-reviewed

    Hidemasa Takana, HongYang Li, Kazuhiro Ogawa, Tsunemoto Kuriyagawa, Hideya Nishiyama

    IMECE 2008: HEAT TRANSFER, FLUID FLOWS, AND THERMAL SYSTEMS, VOL 10, PTS A-C IMECE2008-67996 435-444 2009

  299. Dynamic Response of Magneto-Rheological Fluid Channel Flow with Fluid-Wall Interactions Invited Peer-reviewed

    Hideya Nishiyama, Hidemasa Takana, Kotoe Mizuki, Hannah Weisbecker, Stefan Odenbach

    Journal of Physics: Conference Series 149 012077(4 pages) 2009

    DOI: 10.1088/1742-6596/149/1/012077  

  300. Electrostatic acceleration characteristics of nano/micro particulate jet in micro gap Peer-reviewed

    Hidemasa Takana, Koichi Mizutani, Tsunemoto Kuriyagawa, Hideya Nishiyama

    Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B 75 (753) 972-977 2009

    Publisher: Japan Society of Mechanical Engineers

    DOI: 10.1299/kikaib.75.753_972  

    ISSN: 0387-5016

  301. Chracteristics of Small Power Reactive Air Jet Generated by Dielectric Barrier Discharge for Combustion Enhancement Peer-reviewed

    Yoshihiko Iwabuchi, Hirifumi himizu, HidemasaTakana, Yoshikatsu Nakano, Hideya Nishiyama

    Proc.of the 8th Int. Symp. on AFI/TFI 84-85 2008/12/20

  302. Parametric Study of Hybrid Argon-Water Stabilized Arc for Biomass Gasification

    J.Jenista, H.Takana, H.Nishiyama, M.Bartlova, V.Aubrecht, M.Hrabovsky

    Proceedings of Fifth International Conference of Flow Dynamics OS2-5 2008/11/17

  303. Flow Control of MR Fluid Channel Flow by Using MRF Plugging Effect

    K.Mizuki, H.Weisbecker, S.Odenbach, H.Takana, H.Nishiyama

    Proc. of the Fifth Int. Conf. on Flow Dynamics OS8-68 2008/11/17

  304. Optimization of Small Power Reactive Air Jet for Industrial Applications Invited Peer-reviewed

    H.Takana, H.Nishiyama

    Proc. of Fifth Int. Conf. on Flow Dynamics OS2-8 2008/11/17

  305. MR流体流動システムの動的応答特性と壁面干渉効果

    水木琴絵, 高奈秀匡, 西山秀哉

    日本フルードパワーシステム学会機能性流体を活用した次世代型フルードパワーシステムに関する公開シンポジウム講演論文集 53-54 2008/11/06

  306. 燃焼促進のための誘電体バリア放電による高活性空気プラズマジェットの統合解析 Peer-reviewed

    岩渕良彦, 清水洋文, 高奈秀匡, 西山秀哉

    日本機械学会東北支部第44期秋季講演会 2008 (2008-2) 31-32 2008/09/27

    Publisher: The Japan Society of Mechanical Engineers

  307. Characteristic Analysis of a Highly Reactive Air Jet Generated by Atmospheric Dielectric Barrier Discharge

    Hideya Nishiyama, Hidemasa Takana, Yoshihiko Iwabuchi, Hiroyuki Shimizu, Yoshikatsu Nakano

    Proceedings of International Congress on Plasma Physics (ICPP) 2008 383-383 2008/09/11

  308. Control of Charged Nano/Micro Particle Behavior in an Impinging Supersonic Jet Peer-reviewed

    Hidemasa Takana, Kazuhiro Ogawa, Tsunemoto Kuriyagawa, Hideya Nishiyama

    Proceedings of International Congress on Plasma Physics (ICPP) 2008 259-259 2008/09/09

  309. ナノ・マイクロ粒子ジェットとキャビティ基板との衝突干渉制御による超音微粒子ジェット加工の高度化

    高奈秀匡, 李紅岩, 小川和洋, 厨川常元, 西山秀哉

    日本流体力学会年会2008講演要旨集 2008 220-220 2008/09/04

    Publisher:

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    Real-time computational simulations on cavity filling process by cold gas dynamic spray process were carried out in order to give an insight for their high performance advanced applications to joining, crack repair and dental treatment. It was made clear that shock wave appears in front of the substrate due to underexpansion of jet. By clarifying the relation between shock wave, cavity configuration and particle in-flight behavior in supersonic jet in detail, optimum cavity configuration for cavity filling process has been proposed both numerically and experimentally.

  310. Dynamic Response of Magneto-Rheolgial Fluid Seal with Fluid/Wall Interactions

    H. Nishiyama, H. Takana, K. Mizuki, H. Weisbecher, S. Odenbach

    Proceedings of The 11th Conference on Electrorheological Fluids and Magnetorheological Suspension (ERMR) 101-101 2008/08/25

  311. 壁面相互作用を伴う管内MR流体の複雑流動特性

    水木琴絵, ワイスべッカー・ハナ, オデンバッハ・ステファン, 高奈秀匡, 西山秀哉

    日本混相流学会年会講演会2008 224-225 2008/08/08

  312. 超音速微粒子ジェット加工のおけるナノ・マイクロ粒子流とキャビティー基板との衝突干渉制御

    高奈秀匡, 李紅岩, 小川和洋, 厨川常元, 西山秀哉

    日本混相流学会年会講演会2008 226-227 2008/08/08

  313. ナノ・マイクロ粒子高速流動の衝突過程とキャビティー充填加工の高度化

    高奈秀匡, 李紅岩, 小川和洋, 厨川常元, 西山秀哉

    日本機械学会2008年年次大会講演論文集 8 237-238 2008/08/02

    Publisher: The Japan Society of Mechanical Engineers

    DOI: 10.1299/jsmemecjo.2008.8.0_237  

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    A real-time and realistic computation on the entire cold gas dynamic spray process has been carried out by the integrated model of flow considering shock wave, splat formation, and coating formation. The in-flight behavior of nano/micro particle in the supersonic jet impinging on the substrate with a cavity, and also the interaction between a particle and shockwave has been made clear from this study. By clarifying the effect of cavity shapes on a coating formation inside the cavity, optimum cavity shape was proposed for cavity filling process. Then, the fundamental data has been provided for the advanced application of a high performance cold gas dynamic spray process to a dental treatment or structural repair.

  314. Numerical investigation of supersonic hybrid argon-water-stabilized arc for biomass gasification Peer-reviewed

    Jiri Jenista, Hidemasa Takana, Milan Hrabovsky, Hideya Nishiyama

    IEEE TRANSACTIONS ON PLASMA SCIENCE 36 (4) 1060-1061 2008/08

    DOI: 10.1109/TPS.2008.924521  

    ISSN: 0093-3813

  315. Characteristics of ozone jet generated by dielectric-barrier discharge Peer-reviewed

    Hideya Nishiyama, Hidemasa Takana, Shota Niikura, Hirofumi Shimizu, Dai Furukawa, Tomoki Nakajima, Kazunari Katagiri, Yoshikatsu Nakano

    IEEE TRANSACTIONS ON PLASMA SCIENCE 36 (4) 1328-1329 2008/08

    DOI: 10.1109/TPS.2008.924403  

    ISSN: 0093-3813

  316. Computational simulation on performance enhancement of cold gas dynamic spray processes with electrostatic assist Peer-reviewed

    Hidemasa Takana, Kazuhiro Ogawa, Tetsuo Shoji, Hideya Nishiyama

    JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME 130 (8) 081701 2008/08

    DOI: 10.1115/1.2907417  

    ISSN: 0098-2202

  317. Parametric Study of Hybrid Argon-Water Stabilized Arc Under Subsonic and Supersonic Regimes Peer-reviewed

    J. Jenista, H. Takana, H. Nishiyama, M. Bartlova, V. Aubrecht, M. Hrabovsky

    Proceedings of 10th High Technology Plasma Conference 2008/07/07

  318. Computational simulation of cold spray process assisted by electrostatic force Peer-reviewed

    Hidemasa Takana, Kazuhiro Ogawa, Tetsuo Shoji, Hideya Nishiyama

    POWDER TECHNOLOGY 185 (2) 116-123 2008/07

    DOI: 10.1016/j.powtec.2007.10.005  

    ISSN: 0032-5910

  319. Numerical simulation on operation of closed-loop experimental facility with subsonic MHD generator Peer-reviewed

    Hidemasa Takana, Yoshihiro Okuno, Hiroyuki Yamasaki

    ELECTRICAL ENGINEERING IN JAPAN 163 (1) 25-33 2008/04

    DOI: 10.1002/eej.20399  

    ISSN: 0424-7760

  320. キャビティーを有する基板への超音速微粒子ジェット加工の高性能化

    高奈秀匡, 李紅岩, 小川和洋, 厨川常元, 西山秀哉

    平成19年度衝撃波シンポジウム講演論文集 163-164 2008/03/17

  321. Evaluation of sealing characteristics in MR fluid channel flow relating to magneto-rheological properties Peer-reviewed

    Hideya Nishiyama, Hidemasa Takana, Kotoe Mizuki, Tomoki Nakajima, Kazunari Katagiri

    COMPLEX SYSTEMS-BOOK 1 982 592-597 2008

    ISSN: 0094-243X

  322. Evaluation of sealing characteristics in MR fluid channel flow relating to magneto-rheological properties Peer-reviewed

    Hideya Nishiyama, Hidemasa Takana, Kotoe Mizuki, Tomoki Nakajima, Kazunari Katagiri

    COMPLEX SYSTEMS-BOOK 1 982 592-597 2008

    DOI: 10.1063/1.2897863  

    ISSN: 0094-243X

  323. Activated Air Flow by Dielectric Barrier Discharge for Combustion Assist

    Hirofumi Shimizu, Shota Niikura, Kazunari Katagiri, Hidemasa Takana, Yoshikatsu Nakano, Hideya Nishiyama

    Proceedings of the 7th International Symposium on Advanced Fluid Information and the 4th International Symposium on Transdisciplinary Fluid Integration (AFI/TFI-2007) 264-265 2007/12

  324. Evaluation of Sealing Characteristics in Magneto-Rheological Fluid Channel Flow

    Kotoe Mizuki, Tomoki Nakajima, Kazunari Katagiri, Hidemasa Takana, Hideya Nisyiyama

    Proceedings of 7th International Symposium on Advanced Fluid Information and 4th International Symposium on Transdisciplinary Fluid Integration 250-251 2007/12

  325. Computational Simulation on Acceleration Characteristic of Micro/Nano Particle in Supersonic Micro Jet by Electrostatic Force for Advanced Dental Treatment

    Hidemasa Takana, Tsunemoto Kuriyagawa, Hideya Nishiyama

    Proceedings of 7th International Symposium on Advanced Fluid Information and 4th International Symposium on Transdisciplinary Fluid Integration 254-255 2007/12

  326. 燃焼促進のための誘電体バリア放電による空気プラズマ流の高機能化

    清水洋文, 新倉将太, 片桐一成, 高奈秀匡, 仲野是克, 西山秀哉

    日本機械学会第85期流体工学部門講演会講演論文集 (07-16) 116 2007/11/16

  327. 静電加速によるマイクロ・ナノ粒子超音速ジェット加工の高性能化 Peer-reviewed

    高奈秀匡, 小川和洋, 庄子哲雄, 西山秀哉

    日本機械学会第85期流体工学部門講演会講演論文集 (07-16) 114 2007/11

  328. Effect of configuration on microdischarge structure in a narrow channel Peer-reviewed

    Lizhu Tong, Shigeru Yonemura, Hidemasa Takana, Hideya Nishiyama

    PHYSICS LETTERS A 371 (1-2) 140-144 2007/11

    DOI: 10.1016/j.physleta.2007.06.014  

    ISSN: 0375-9601

  329. Reactive Air Jet Generated by Dielectric Barrier Discharge for Ignition Assist

    Hideya Nishiyama, Hidemasa Takana, Hirofumi Shimizu, Shota Nikura, Kazunari Katagiri, Yoshikatsu Nakano

    Proceedings of 4th International Conference on Flow Dynamics 4-13 2007/09

  330. Analysis of Air Radical Flow Generated by Pulsed Discharge for Combustion Assist Peer-reviewed

    Hideya Nishiyama, Hidemasa Takana, Shota Niikura, Hirofumi Shimizu, Kazunari Katagiri, Yoshikatsu Nakano

    Abstracts of the 18th International Symposium on Plasma Chemistry 653 2007/08/28

  331. Particle Modeling of Low Pressure DC Microdischarges in a Narrow Channel Peer-reviewed

    Lizhu Tong, Shigeru Yonemura, Hidemasa Takana, Hideya Nishiyama

    Abstracts of the 18th International Symposium on Plasma Chemistry 244 2007/08/28

  332. Real-time numerical analysis on insulation capability improvement of compact gas circuit breaker Peer-reviewed

    Hidemasa Takana, Toshiyuki Uchii, Hiromichi Kawano, Hideya Nishiyama

    IEEE TRANSACTIONS ON POWER DELIVERY 22 (3) 1541-1546 2007/07

    DOI: 10.1109/TPWRD.2007.899796  

    ISSN: 0885-8977

  333. 数値実験による静電加速を用いたマイクロ・ナノ粒子高速流動加工の高性能化

    高奈秀匡, 厨川常元, 西山秀哉

    日本混相流学会年会講演会2007 56-57 2007/06

  334. MR流体のレオロジー特性と流動遮断性能

    西山秀哉, 高奈秀匡, 水木琴絵, 中嶋智樹, 片桐一成

    平成19年春季フルードパワーシステム講演会講演論文集 52-54 2007/05/24

  335. Electrostatic Assist on a Cold Spray Process by Computational Simulation Peer-reviewed

    Hidemasa Takana, Kazuhiro Ogawa, Tetsuo Shoji, Hideya Nishiyama

    Proceedings of the 2007 International Thermal Spray Conference, Beijing, China 90-95 2007/05/14

  336. Computational Simulation on Optimization of Micro/Nano Prticle-Laden Micro Jet by Electrostatic Acceleration Invited Peer-reviewed

    Hidemasa Takana, Tsunemoto Kuriyagawa, Hideya Nishiyama

    Progress in Multiphase Flow Research 2 (3) 85-90 2007/04/01

    Publisher: THE JAPANESE SOCIETY FOR MULTIPHASE FLOW

    DOI: 10.3811/pmfr.2.85  

    ISSN: 1881-5804

    More details Close

    In-flight behavior of micro-nano particles and the interaction between shock wave and particles in a supersonic jet which impinges onto the substrate in a micro space are clarified in detail by computational simulation. The optimal particle diameter for maximum impinging particle velocity exists. Particles smaller than the optimal diameter are decelerated drastically prior to the impact on the cavity as a result of unavoidable particle-shock interaction. The larger deceleration through shockwave is observed with decrease in particle diameter. The particle less than 100 nm cannot penetrate the shockwave and carried by wall jet without impinging on the tooth cavity. The electrostatic force in the vicinity of tooth cavity acts effectively for the acceleration of submicron particles even in the presence of unavoidable shockwave in micro space.

  337. 静電加速によるマイクロ・ナノ粒子超音速ジェットの制御特性

    高奈秀匡, 小川和洋, 庄子哲雄, 西山秀哉

    平成18年度衝撃波シンポジウム講演論文集 239-240 2007/03/15

  338. Effect of Configuration on Microdischarge Structure in a Narrow Channel

    Lizhu Tong, Shigeru Yonemura, Hidemasa Takana, Hideya Nishiyama

    Proceedings of the 24th Symposium on Plasma Processing (SPP24) 395-396 2007/01/31

  339. Simulation study of SiH(4) microdischarges in a narrow channel Peer-reviewed

    L. Z. Tong, S. Yonemura, H. Takana, H. Nishiyama

    EPL 77 (4) 45003-p1-45003-p5 2007

    DOI: 10.1209/0295-5075/77/45003  

    ISSN: 0295-5075

  340. Optimization of cold gas dynamic spray processes by computational simulation Peer-reviewed

    Hidemasa Takana, Kazuhiro Ogawa, Tetsuo Shoji, Hideya Nishiyama

    FEDSM 2007: PROCEEDINGS OF THE 5TH JOINT AMSE/JSME FLUIDS ENGINEERING SUMMER CONFERENCE VOL 1, PTS A AND B FEDSM2007-37081 1569-1577 2007

    DOI: 10.1115/FEDSM2007-37081  

  341. Transient response of closed-loop MHD experimental facility Peer-reviewed

    Hidemasa Takana, Yoshihiro Okuno, Hiroyuki Yamasaki

    ELECTRICAL ENGINEERING IN JAPAN 158 (1) 46-52 2007/01

    DOI: 10.1002/eej.20237  

    ISSN: 0424-7760

  342. MR流体の複雑流動構造を考慮した流量制御特性

    西山秀哉, 高奈秀匡, 片桐一成, 本澤政明, 澤田達男

    平成18年度磁性流体連合講演会講演論文集 41-43 2006/12/07

  343. 静電加速によるコールドスプレープロセスの高性能化数値実験

    高奈秀匡, 小川和洋, 庄子哲雄, 西山秀哉

    日本溶射協会第84回全国大会講演大会講演論文集 5-6 2006/11/27

  344. Air Radical Flow by Pulsed Discharge for Combustion Enhancement

    H. Shimizu, K. Tsuri, K. Katagiri, H. Takana, Y. Nakano, H. Nishiyama

    Abstract of the 1st Japan Korea Student Workshop 2006/11/14

  345. Reactive Air Plasma Flow by Pulsed DC Discharge for Combustion Assist

    H. Shimizu, K. Tsuri, K. Katagiri, H. Takana, Y. Nakano, H. Nishiyama

    Third International Conference on Flow Dynamics 177 2006/11/07

  346. Effect of Channel Diameter on Microdischarges in a Narrow Channel

    L. Tong, S. Yonemura, H. Takana, H. Nishiyama

    Third International Conference on Flow Dynamics 69 2006/11/07

  347. Computational Simulation on Acceleration of Micro/Nano Particle in Supersonic Jet by Electrostatic Force

    H. Takana, K. Ogawa, T. Shoji, H. Nishiyama

    Third International Conference on Flow Dynamics 65 2006/11

  348. コールドスプレープロセスの高性能化のための数値実験

    高奈秀匡, 小川和洋, 庄子哲雄, 西山秀哉

    日本機械学会流体工学部門講演会講演概要集 (06-21) 19 2006/10/29

  349. 燃焼促進のためのパルス放電による空気プラズマ流の高機能化

    西山秀哉, 釣健士, 清水洋文, 片桐一成, 高奈秀匡, 仲野是克

    日本機械学会流体工学部門講演会講演概要集 (06-21) 21 2006/10/29

  350. 圧力流れ場におけるMR流体の流動構造と流動制御特性

    西山秀哉, 高奈秀匡, 片桐一成, 本澤政明, 澤田達男

    日本機械学会流体工学部門講演会講演概要集 (06-21) 26 2006/10/29

  351. Electrostatic Control of Micro-Nano Particle-Laden Supersonic Jet Impinging onto the Substrate with Cavity in a Micro-space

    Hidemasa Takana, Tsunemoto Kuriyagawa, Hideya Nishiyama

    Proceedings of the 6th International Symposium on Advanced Fluid Information, Chofu 33-34 2006/10/27

  352. Control performance of interactions between reactive plasma jet and substrate Peer-reviewed

    Hideya Nishiyama, Takehiko Sato, Shota Niikura, Genta Chiba, Hidemasa Takana

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 45 (10B) 8085-8089 2006/10

    DOI: 10.1143/JJAP.45.8085  

    ISSN: 0021-4922

  353. 微小空間におけるマイクロ・ナノ粒子ジェットの制御

    高奈秀匡, 厨川常元, 西山秀哉

    日本混相流学会年会講演会2006講演論文集 362-363 2006/08/06

  354. Fuctional Air Plasma Flow by Using Pulse Arc Discharge for Combustion Enhancement

    H. Nishiyama, K. Tsuri, K. Katagiri, H. Takana, Y. Nakano

    Abstracts of the 8th Asian Pacific Conferece on Plasma Science and Technology, Cairns 2006/07/02

  355. Optimization of In-flight Micro-Nano Particle Behaviors in a Cold Spray Process by Computational Simulation

    Hidemasa Takana, Kazuhiro Ogawa, Tetsuo Shoji, Hideya Nishiyama

    8th Asia-Pacific Conference on Plasma Science and Technology and 19th Symposium on Plasma Science for Materials 2006/07/02

  356. ガス流および電界の複合解析によるSF6ガス遮断器の絶縁性能解析

    内井敏之, 河野広道, 高奈秀匡, 西山秀哉

    平成18年度電気学会全国大会講演論文集 6 (215) 359 2006/03/15

  357. Control Performance of Interactions between Reactive Plasma Jet and Substrate

    Hideya Nishiyama, Takehiko Sato, Shota Nikura, Genta Chiba, Hidemasa Takana

    Proceedings of the 6th International Conference on Reactive Plasmas and 23rd Symposium on Plasma Processing 173-174 2006/01/24

  358. 2301 Experimental Analysis on Flow Structure and Flow Control Characteristics of MR Fluid under Magnetic Field

    NISHIYAMA Hideya, TAKANA Hidemasa, KATAGIRI Kazunari, MOTOZAWA Masaaki, SAWADA Tatsuo

    The proceedings of the JSME annual meeting 2006 15-16 2006

    Publisher: The Japan Society of Mechanical Engineers

    DOI: 10.1299/jsmemecjo.2006.2.0_15  

    More details Close

    Experimental analysis on the cluster formation of MR fluid and rheological properties under the magnetic field are carried out. Through the measurement of ultrasonic propagation velocity in MR fluid, the cluster behavior in pressure-driven flow is clarified in detail. Finally, the flow control characteristics of MR fluid in a rectangular channel are evaluated to provide the fundamental data for the design of the advanced MR valve system.

  359. Computational simulation of arc melting process with complex interactions Peer-reviewed

    H Nishiyama, T Sawada, H Takana, M Tanaka, M Ushio

    ISIJ INTERNATIONAL 46 (5) 705-711 2006

    DOI: 10.2355/isijinternational.46.705  

    ISSN: 0915-1559

  360. 短時間冷却による小型ガス遮断器の耐電圧向上に関する数値解析

    高奈秀匡, 内井敏之, 河野広道, 西山秀哉

    第19回数値流体力学シンポジウム講演論文集 D1 (5) 1-6 2005/12/13

  361. Transient Cooling Process in Compact Gas Circuit Breaker During Large Current Interruption

    Hidemasa Takana, Toshiyuki Uchii, Hiromichi Kawano, Hideya Nishiyama

    Proceedings of the Fifth International Symposium on Advanced Fluid Information 80-81 2005/12/08

  362. Fundamental Study on Generation of Reactive Air Plasma Flow in Atmospheric Pressure

    Hideya Nishiyama, KenjiTsuri, Shota Nikura, Kazunari Katagiri, Hidemasa Takana, Yoshikatsu Nakano

    Proceedings of the Fifth International Symposium on Advanced Fluid Information 90-91 2005/12/08

  363. Virtual Experiment on Transient Gas Cooling Process in Compact Gas Circuit Breaker

    Hidemasa Takana, Hideya Nishiyama, Toshiyuki Uchii, Hiromichi Kawano

    Second International Conference on Flow Dynamics DVD-ROM 2005/11/16

  364. 固液共存相を考慮した統合モデルによるアーク溶融システムの最適化

    西山秀哉, 澤田知彦, 高奈秀匡, 田中学, 牛尾誠夫

    第160回溶接アーク物理研究委員会 (ア物-05) 1281 2005/11/02

  365. Fundamental Study of Air Plasma Flow for Enhancing Combustion

    K. Tsuri, S. Nikura, H. Takana, K. Katagiri, Y. Nakano, H. Nishiyama

    Abstracts of the Second International Conference on Flow Dynamics (ICFD2005) 3-5 2005/11

  366. Control Performance of Plasma Jet Behaviors Impinging onto the Substrate

    S. Nikura, G. Chiba, T. Sato, H. Takana, H. Nishiyama

    Abstracts of the Second International Conference on Flow Dynamics (ICFD2005) 3-17 2005/11

  367. 複雑干渉を伴うアーク溶融システムの仮想実験

    西山秀哉, 澤田知彦, 高奈秀匡, 田中学, 牛尾誠夫

    日本鉄鋼協会第150回秋季講演大会論文集 18 (4) 1051 2005/09/30

  368. Numerical Simulation on Operation of Closed Loop Experimental Facility with Subsonic MHD Generator Peer-reviewed

    Hidemasa Takana, Yoshihiro Okuno, Hiroyuki Yamasaki

    IEEJ of Japan, B 125 (9) 907-913 2005/09

    Publisher: The Institute of Electrical Engineers of Japan

    DOI: 10.1541/ieejpes.125.907  

    ISSN: 0385-4213

    More details Close

    The operating characteristics and operation procedure of the closed loop experimental facility under subsonic power generation have been investigated by means of time-dependent quasi-one-dimensional numerical simulations. It was found that there are two ways of operation for the subsonic power generation, which are (1)a subsonic operation both under non-power and power generation and (2)a supersonic operation under non-power generation and subsonic operation under power generation. For the operation(1), Mach number at channel inlet decreases to ˜0.6, therefore it is required to generate plasma under this Mach number. On the other hand, if the plasma cannot be generated, the operation(2) needs to be carried out. In this case, a shock wave appears in the generator channel, then the influence of a large pressure change and a vibration caused by a shock wave in the generator channel needs to be considered.

  369. Computational Simulation on Arc Melting Process with Complex Interactions

    Hideya Nishiyama, Tomohiko Sawada, Hidemasa Takana, Manabu Tanaka, Masao Ushio

    17th International Symposium on Plasma Chemistry CD-ROM 2005/08/07

    DOI: 10.2355/isijinternational.46.705  

  370. Controllable Thermofluid Field of Reactive Plasma Jet Impinging onto the Substrate Peer-reviewed

    Hideya Nishiyama, Takehiko Sato, Genta Chiba, Hidemasa Takana

    Proceedings of the 17th International Symposium on Plasma Chemistry, Toronto CD-ROM 2005/08

  371. Numerical simulation on annular hall energy conversion device under wide range of operating condition Peer-reviewed

    H Takana, Y Okuno

    JSME INTERNATIONAL JOURNAL SERIES B-FLUIDS AND THERMAL ENGINEERING 48 (3) 389-396 2005/08

    DOI: 10.1299/jsmeb.48.389  

    ISSN: 1340-8054

  372. 現実強化モデルによる小型ガス遮断器の耐電圧性向上解析

    高奈秀匡, 内井敏之, 河野広道, 西山秀哉

    電気学会研究会資料、放電・静止器・開閉保護合同研究会 2005 (37) 43-47 2005/06/07

  373. Computational Experiment on Arc Melting Process with Complex Interactions

    Hideya Nishiyama, Tomohiko Sawada, Hidemasa Takana, Manabu Tanaka, Masao Ushio

    第18回プラズマ材料科学シンポジウムアブストラクト集 42-42 2005/06

  374. 複雑干渉を伴う環境・材料プロセス用アーク溶融システムの仮想実験

    澤田知彦, 田中学, 高奈秀匡, 牛尾誠夫, 西山秀哉

    日本機械学会東北支部第40期総会・講演会講演論文集 2005/03

  375. Control Performance of Interactions between Reactive Plasma Jet and Substrate

    Hideya Nishiyama, Takehiko Sato, Shota Nikura, Genta Chiba, Hidemasa Takana

    Proceedings of the 6th International Conference on Reactive Plasmas and 23rd Symposium on Plasma Processing 173-174 2005/01/24

  376. Numerical Simulation on Transient Responses of Plasma Direct Energy Conversion System

    Hideamasa Takana, Yoshihiro Okuno, Hiroyuki Yamasaki

    First International Conference on Flow Dynamics DVD-ROM 2004/11/11

  377. Numerical Simulation on Transient Characteristics of Closed Loop MHD Experimental Facility

    Hidemasa Takana, Susumu Izumi, Yoshihiro Okuno, Hiroyuki Yamasaki

    35th AIAA Plasmadynamics and Laser conference AIAA- 2004-2556 2004/06/28

  378. Numerical Simulation on Operating Characteristics of Closed Loop MHD Experimental Facility Peer-reviewed

    Hidemasa Takana, Yoshihiro Okuno, Hiroyuki Yamasaki

    IEEJ Transactions on Power and Energy 124 (5) 785-790 2004

    DOI: 10.1541/ieejpes.124.785  

    ISSN: 1348-8147 0385-4213

  379. Transient Response of Closed Loop MHD Experimental Facility Peer-reviewed

    Hidemasa Takana, Yoshihiro Okuno, Hiroyuki Yamasaki

    IEEJ Transactions on Power and Energy 124 (11) 1343-1348 2004

    DOI: 10.1541/ieejpes.124.1343  

    ISSN: 1348-8147 0385-4213

  380. Numerical Simulation of Fluid Flow in Closed Loop MHD Power Generation Facility

    Hidemasa Takana, Yoshihiro Okuno, Hiroyuki Yamasaki

    34th AIAA Plasmadynamics and Laser conference AIAA-2003-3486 2003/06/23

  381. Behavior of magneto-acoustic waves in a nonequilibrium subsonic disk MHD generator Peer-reviewed

    H Takana, Y Nabara, Y Okuno, H Yamasaki

    ELECTRICAL ENGINEERING IN JAPAN 142 (4) 20-26 2003/03

    DOI: 10.1002/eej.10108  

    ISSN: 0424-7760

  382. Numerical Simulation on Non-equilibrium Plasma Flow in an Annular Hall MHD

    Hidemasa Takana, Yuhei Eda, Yoshihiro Okuno

    Proceedings of 14th International Conference on MHD Power Generation and High Temperature Technologies 441-447 2002/05/20

  383. Behavior of Magneto-Acoustic Waves in a Nonequilibrium Subsonic Disk MHD Generator Peer-reviewed

    Hidemasa Takana, Yoshihiro Nabara, Yoshihiro Okuno, Hiroyuki Yamasaki

    Trans.IEE of Japan 122 (2) 232-237 2002/02

    Publisher:

    ISSN: 0385-4213

  384. Behavior of Magneto-Acoustic Waves in Subsonic Nonequilibrium Plasma MHD Flow

    Hidemasa Takana, Yoshihiro Okuno, Hiroyuki Yamasaki

    Proceedings of 25th International Conference on Phenomena in Ionized Gases 2 173-174 2001/07/18

  385. Response of a Nonequilibrium Subsonic Disk MHD Generator to the Fluctuation of Seed Fraction Peer-reviewed

    Hidemasa Takana, Yoshihiro Nabara, Yoshihiro Okuno, Hiroyuki Yamasaki

    Trans.IEE of Japan 121 (7) 887-892 2001/07

    Publisher:

    ISSN: 0385-4213

  386. Numerical Simulation on Behavior of Subsonic Non-equilibrium Plasma MHD Flow Invited

    Hidemasa Takana, Yoshihiro Okuno, Hiroyuki Yamasaki

    32nd AIAA Plasmadynamics and Laser conference AIAA-2001-3098 2001/06/11

  387. Transient Phenomena in a Nonequilibrium Subsonic Disk MHD Generator at Load Change Peer-reviewed

    Hidemasa Takana, Yoshihiro Nabara, Yoshihiro Okuno, Hiroyuki Yamasaki

    Trans.IEE of Japan 121 (1) 123-128 2001/01

Show all ︎Show first 5

Misc. 33

  1. Development of Innovative PEDOT Synthesis Using Plasma Enveloped Bubble Invited

    Kazuhiko Ohtake, Hidemasa Takana

    JSME Fluids Engineering Division Newsletter 2023/02

  2. セルロースナノファイバーを原料とするセルロース単繊維の高強度・高靭性化 Invited

    高奈秀匡

    油空圧技術 60 (7) 1-5 2021/07

  3. 流動場と電場を重畳したナノ繊維配向制御によるセルロース単繊維の高強度・高靭化 Invited

    高奈秀匡

    エネルギー・化学・プラントの総合技術誌 JETI 69 (4) 58-61 2021/03

  4. Preface

    Takashi Tokumasu, Hitomi Anzai, Koji Fujita, Kenichi Funamoto, Makoto Hirota, Hisashi Nakamura, Koji Shimoyama, Hidemasa Takana

    JOURNAL OF FLUID SCIENCE AND TECHNOLOGY 16 (1) 2021

    DOI: 10.1299/jfst.2021jfst0001  

    ISSN: 1880-5558

  5. Fundamental Study on Ignition of Methane Initiated by Nanosecond Repetitively Pulsed Discharges

    上杉滉大, 手塚卓也, 長谷川進, 森井雄飛, 中村寿, 高奈秀匡, 丸田薫, 丸田薫

    燃焼シンポジウム講演論文集 56th ROMBUNNO.A113 2018/11/14

  6. Ignition Experiments by Nanosecond Repetitively Pulsed Discharges for Lean Burn Application

    UESUGI Kodai, TEZUKA Takuya, HASEGAWA Susumu, MORII Youhi, NAKAMURA Hisashi, TAKANA Hidemasa, MARUTA Kaoru, MARUTA Kaoru

    Proceedings. International Conference on Flow Dynamics (CD-ROM) 15th 2018

  7. Nano Powder Transportation by Combining Plasma Actuation and Electrostatic Mixing in a Tube Invited

    高奈秀匡, 中川路周作, 上原聡司, 西山秀哉

    日本機械学会流体工学部門HP「今この論文/技術/研究開発が熱い!」 2017/11

  8. 静電配向制御によるセルロース新素材創製プロセス

    武田祐介, Christophe Brouzet, Nitesh Mittal, Fredrik Lundell, 高奈秀匡

    日本機械学会流体工学部門ニューズレター流れ,2017年2月号 2017/02/22

  9. Special Issue of the Eleventh International Conference on Flow Dynamics (ICFD2014) Preface

    Takehiko Sato, Yuji Hattori, Tomohide Niimi, Hidemasa Takana, Takashi Tokumasu

    JOURNAL OF FLUID SCIENCE AND TECHNOLOGY 11 (1) 2016

    DOI: 10.1299/jfst.2016jfst0001  

    ISSN: 1880-5558

  10. ワークショップ「機能性流体を基盤としたフロンティア流体工学への新展開」の紹介

    高奈秀匡, 西山秀哉

    日本機械学会流体工学部門ニューズレター流れ,2015年12月号 2015/12/15

  11. プラズマおよびイオン液体のエネルギー技術への応用展開

    高奈秀匡

    日本機械学会流体工学部門ニューズレター流れ,2015年12月号 2015/12/15

  12. 1109 Dynamic Response of Electromagnetic Energy Conversion Device for Efficient Utilization of Wind Power

    TAKANA Hidemasa

    Fluids engineering conference ... 2015 "1109-1"-"1109-2" 2015/11/07

    Publisher: The Japan Society of Mechanical Engineers

    ISSN: 1348-0251

    More details Close

    Innovative energy conversion device has been developed for efficient wind energy utilization. This device has co-axial configuration and the rotational speed of the turbine can be kept constant by controlling rotational torque by Lorentz force with electrical power generation. The dynamic characteristics of the electromagnetic energy conversion device has been experimentally clarified. For a step-like change in input torque, both rotational speed and electric output power transiently increase and then decrease to a steady value with linearly increasing applied magnetic flux density. In case of a step-like change of input torque, it was clarified that the rated speed operation is realized with partially converging the rotational energy into electric power.

  13. 1110 Characteristic investigation of Coaxial MHD Power Generator using Lattice Boltzmann Method

    TAKI Kenta, IWAMOTO Yuhiro, TAKANA Hidemasa, YAMAGUCHI Hiroshi

    Fluids engineering conference ... 2015 "1110-1"-"1110-2" 2015/11/07

    Publisher: The Japan Society of Mechanical Engineers

    ISSN: 1348-0251

    More details Close

    An innovative coaxial MHD power generator using low-melting point alloy has been proposed for efficient wind power generation. MHD power generation is a kind of the direct-electricity-generation method. In order to develop the generator, three dimensional MHD Taylor Couette flow is simulated using lattice Boltzmann method for MHD based on Dellar 's model. In this study, the coaxial MHD power generation characteristic using the low-melting-point-alloy is investigated at low Reynolds numbers. As the obtained results, the velocity profile is changed due to the effect of the Lorentz force. And output voltage increases linearly with the Reynolds number while sticking Hartmann number to 4.

  14. [トピックス]イオン流体が拓く革新的エネルギーデバイスの未来

    高奈秀匡

    日本機械学会誌 118 (1164) 696-696 2015/11

    Publisher: 一般社団法人日本機械学会

    ISSN: 0021-4728

  15. 機械工学年鑑,7. 流体工学

    西山秀哉, 福西祐, 伊澤精一郎, 浅井圭介, 澤田恵介, 孫明宇, 祖山均, 石本淳, 山本悟, 伊賀由佳, 須藤誠一, 中野政身, 佐藤岳彦, 高奈秀匡, 徳増崇, 米村茂, 早瀬敏幸, 石川拓司

    日本機械学会誌 118 (1161) 27-33 2015/08/05

    Publisher: 日本機械学会

  16. 流体工学 7.6.3 プラズマ流体

    佐藤岳彦, 高奈秀匡

    日本機械学会誌「機械工学年鑑特集号」 118 (1161) 472, 475 2015/08

  17. 1309 Development and characteristics of electromagnetic energy conversion device for efficient wind energy utilization

    TANIDA Akira, TAKANA Hidemasa

    Fluids engineering conference ... 2014 "1309-1"-"1309-2" 2014/10/25

    Publisher: The Japan Society of Mechanical Engineers

    ISSN: 1348-0251

    More details Close

    Innovative energy conversion device has been developed for efficient wind energy utilization. This device has co-axial configuration and the rotational speed of the turbine can be kept constant by controlling rotational torque by Lorentz force with electrical power generation. The overshoot occurs in motor torque for the step-like change of rotational speeds due to the inertial of the liquid metal flow. With increasing the rotational speed from 1000 rpm to 1500 rpm, the change in the motor torque a little with increasing the magnetic flux density, because of the moderate response of the liquid metal flow by electromagnetic interaction.

  18. J0610104 Numerical Simulation on Performance of Electric Double Layer Capacitor with Ionic Liquid

    TAKANA Hidemasa, MIKAMI Kazuki

    Mechanical Engineering Congress, Japan 2014 "J0610104-1"-"J0610104-5" 2014/09/07

    Publisher: The Japan Society of Mechanical Engineers

    More details Close

    The numerical simulation on ionic liquid electric double layer capacitors (EDLCs) with mesoporous electrodes consisting of cylindrical pores has been conducted to clarify the effect of porous geometry on the performance of the capacitor. The results show that the charge at the surface of the porous is dominant and the gravimetric capacitance increases exponentially with radius for the same pore depth. The charge density is almost the same for the pore depth under the constant pore radius, therefore the gravimetric capacitance increases almost linearly with pore depth. It was found that the gravimetric capacitance depends on the porosity of the electrode and it increases quadratically with porosity.

  19. 高応答性流体の異分野融合展開

    石本淳, 西山秀哉, 高奈秀匡, 徳増崇, 寒川誠二, 久保田智広, SAITO Kozo, 姫野武洋, 新城淳史, 岡村崇弘, 松浦一雄, 井上元

    東北大学流体科学研究所共同利用・共同研究拠点流体科学研究拠点活動報告書 2013 2014

  20. 風力エネルギー高度利用のための同軸型電磁エネルギー変換装置の開発と性能評価

    谷田彬, 高奈秀匡

    日本機械学会流体工学部門ニューズレター流れ (2014年1月) 2014/01

  21. 0810 Development and characteristics of coaxial energy conversion device for efficient wind energy utilization

    TANIDA Akira, TAKANA Hidemasa

    Fluids engineering conference ... 2013 "0810-01"-"0810-02" 2013/11/09

    Publisher: The Japan Society of Mechanical Engineers

    ISSN: 1348-0251

    More details Close

    Innovative energy conversion device has been developed for efficient wind energy utilization. This device has co-axial configuration and the rotational speed of the turbine can be kept constant by controlling rotational torque by Lorentz force with electrical power generation. For larger load resistance, rotational torque increases due to increase in azimuthal component of electric current and friction force by Lorenz force acting radially inner direction. On the other hand, rotational torque decreases for smaller load resistance. Therefore, even when torque increases with increasing wind velocity, the turbine can be operated at a constant rotational speed by controlling load resistance with conversion of wind energy into electric power.

  22. 高応答性流体の異分野融合展開

    石本淳, 西山秀哉, 高奈秀匡, 徳増崇, 寒川誠二, 久保田智広, SAITO Kozo, 姫野武洋, 新城淳史, 岡村崇弘, 松浦一雄, 井上元

    東北大学流体科学研究所共同利用・共同研究拠点流体科学研究拠点活動報告書 2012 2013

  23. 高応答性流体の異分野融合展開

    石本淳, 西山秀哉, 高奈秀匡, 徳増崇, 寒川誠二, 久保田智広, SAITO Kozo, 姫野武洋, 新城淳史, 岡村崇弘, 松浦一雄, 井上元

    東北大学流体科学研究所共同利用・共同研究拠点流体科学研究拠点活動報告書 2011 2012

  24. Simulation of gas phase reaction in atmospheric plasma

    KAMBARA Shinji, SATO Takehiko, KOMURO Atsushi, ONO Ryo, ODA Tetsuji, TAKANA Hidemasa, NOZAKI Tomohiro, OKUNO Yasuyuki, SUGIMOTO Kazuya, EHADO Syoichi

    電気学会研究会資料. PST, プラズマ研究会 2011 (71) 91-91 2011/12/15

  25. Particle velocity evaluation of cold sprayed particles using Particle Image Velocimetry (PIV)

    MIKAMI Norihiro, GAI Xiaohui, OGAWA Kazuhiro, TAKANA Hidemasa, NISHIYAMA Hideya, ISHII Seiichi, MATSUMURA Satoshi, YASUKI Masashi

    94 59-60 2011/11/14

  26. S052013 Characterization of Multiple Bubble Jets with Streamer Discharge and Evaluation of its Functions

    NISHIYAMA Hideya, NIINUMA Kei, NAGAI Ryosuke, TAKANA Hidemasa

    Mechanical Engineering Congress, Japan 2011 "S052013-1"-"S052013-3" 2011/09/11

    Publisher: The Japan Society of Mechanical Engineers

    More details Close

    The characteristics of multiple bubble jet in which streamer is generated by DC pulsed discharge, has been experimentally clarified through the discharge visualization in a bubble, decolorization of methylene blue solution and decomposition of acetic acid solution. We succeeded in visualizing the complex streamer behavior in bubble jet and confirmed that there is the streamer propagation along the interface of bubble. 0 radical and OH radical during streamer discharge in Ar, O_2 and air bubbles are detected by spectroscopic method. Finally, methylene blue solution and acetic acid solution are successfully decomposed by these radicals for a short time in a DC discharge multiple bubble jets.

  27. Fascinated by Fluid Science in Cold Spray Process

    TAKANA Hidemasa

    47 (4) 192-193 2010/10/29

    ISSN: 0916-6076

  28. 0505 Water Entry Phenomena of Spherical Magnet-Magnetic Fluid System

    SUDO Seiichi, TAKAYANAGI Hirayoshi, TAKANA Hidemasa, NISHIYAMA Hideya

    Fluids engineering conference ... 2010 167-168 2010/10/29

    Publisher: The Japan Society of Mechanical Engineers

    ISSN: 1348-2882

    More details Close

    This paper describes the water entry phenomena created by the impact of solid-liquid compound projectile. The spherical NdFeB permanent magnet was used as solid, and kerosene-based magnetic fluid was used as liquid in the experiment. The cavity of air in water was observed with high-speed video camera system. The effect of magnetic fluid adsorbed to the spherical magnet was clarified. The impact of the magnetic fluid coated sphere on the free surface of water readily causes the formation of subsurface cavity. The effect of the alternating magnetic fields on the cavity was also revealed.

  29. 大気圧パルス放電による高活性空気ジェットの生成とその基礎特性

    高奈秀匡, 釣健士, 新倉将太, 清水洋文, 岩渕良彦, 片桐一成, 中嶋智樹, 仲野是克, 西山秀哉

    大気圧プラズマ流による人間環境保全技術に関する研究分科会(P-SCD360) 166-170 2009/12/01

    Publisher: (社)日本機械学会環境工学部門

  30. Introduction of Electromagnetic Intelligent Fluids Laboratory, Intelligent Fluid Systems Division, Institute of Fluid Science, Tohoku University

    TAKANA Hidemasa

    Journal of Japan Thermal Spraying Society 46 (1) 25-27 2009/01/31

    Publisher: 日本溶射協会

    ISSN: 0916-6076

  31. Numerical Prediction of Operating Characteristics of Closed Loop MHD Facility

    Takana Hidemasa, Okuno Yoshihiro, Yamasaki Hiroyuki

    2004 (40) 81-82 2004/09/17

    Publisher: The Japan Society of Mechanical Engineers

  32. 516 Behavior of Magneto-acoustic Waves in a Subsonic Non-equilibrium MHD Generator

    TAKANA Hidemasa, NABARA Yoshihiro, OKUNO Yoshihiro, YAMASAKI Hiroyuki

    Fluids engineering conference ... 2001 76-76 2001/09/28

    Publisher: The Japan Society of Mechanical Engineers

    ISSN: 1348-2882

  33. Response of a Nonequilibrium Subsonic Disk MHD Generator

    TAKANA Hidemasa, NABARA Yoshihiro, OKUNO Yoshihiro, YAMASAKI Hiroyuki

    2000 (22) 31-36 2000/09/14

Show all ︎Show first 5

Books and Other Publications 5

  1. ナノカーボン・ナノセルロースの分散・配向制御技術

    高奈秀匡

    シーエムシー出版 2021/12

    ISBN: 9784781316284

  2. 電気学会技術報告 第1396号「高効率MHD発電とその応用」

    高奈秀匡

    電気学会 2017/05

  3. 電気学会技術報告 第1339号「液界面プラズマの実験・計算モデル」

    高奈秀匡

    電気学会 2015/03

  4. 電気学会技術報告 第1284号「MHD技術応用」

    高奈秀匡

    電気学会 2013/06

  5. Progress in Biomass and Bioenergy Production, Edited By: Syed Shahid Shaukat

    Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, Milada Bartlova, Vladimir Aubrecht, Petr Krenek, Milan Hrabovsky, Tetyana Kavka, Viktor Sember, Alan Maslani

    InTech 2011/07

Presentations 209

  1. Temperature distribution of polymer particles during the cold spray process

    C. A. Bernard, H. Takana, G. Digue, O. Lame, K. Ogawa, J.-Y. Cavaillé

    International Thermal Spray Conference and Exposition 2023 (ITSC2023) 2023/05/25

  2. Large eddy simulation of MHD turbulent Taylor-Couette flow in axial magnetic field

    H. Kobayashi, T. Hasebe, T. Fujino, H. Takana

    75th Annual Meeting of the Division of Fluid Dynamics 2022/11/20

  3. EDOT Polymerization in an Emulsion by Plasma Enveloped Bubble

    Kazuhiko OTAKE, Gildas COATIVY, Sebastien LIVI, Laura COURTY, Florent DALMAS, Laurence SEVEYRAT, Veronique PERRIN, Jean Yves CAVAILLE, Hidemasa TAKANA

    ELyT Workshop 2022 2022/11/17

  4. Evaluation of the thermal gradient of in-flight polymer particles during cold spray process

    C. A. Bernard, H. Takana, G. Digue, O. Lame, K. Ogawa, J.-Y. Cavaillé

    ELyT Worshop 2022 2022/11/16

  5. Numerical Simulation of a Thermal Plasma Reactor for the Wastes to Energy

    Hyeokjun Kang, Jeong-Hwan Oh, Jun-Hee Mun, Hidemasa Takana, Sooseok Choi

    22nd International Symposium on Advanced Fluid Information 2022/11/09

  6. Study on MHD phenomena in Co-axial Energy Conversion Device

    Hiromichi Kobayashi, Hidemasa Takana, Takahiro Hasebe, Takayasu Fujino

    22nd International Symposium on Advanced Fluid Information 2022/11/09

  7. Continuous Fabrication of Strong and Conductive Carbon Nanotube/Cellulose Nanofibril Composite Filaments Invited

    Heather G. Wise, Anthony B. Dichiara, Hidemasa Takana

    Nineteenth International Conference on Flow Dynamics 2022/11/10

  8. Estimating Rotational Diffusion Constant of Cellulose Nanofiber Suspension by Brownian Dynamics Simulation

    Yukitaka Ishimoto, Yuya Watanabe, Hidemasa Takana

    22nd International Symposium on Advanced Fluid Information 2022/11/09

  9. Catalyst Synthesis Using Cavitation Plasma for Oxygen Reduction Reaction

    Nozomi Takeuchi, Souta Imaizumi, Ryotaro Harakawa, Hidemasa Takana, Oi Lun Li

    22nd International Symposium on Advanced Fluid Information 2022/11/09

  10. Evolution of the Polymer Particle Thermal History During Cold Spray Process

    Chrystelle Bernard, Hidemasa Takana, Gildas Digue, Olivier Lame, Kazuhiro Ogawa, Jean-Yves Cavaillé

    Nineteenth International Conference on Flow Dynamics 2022/11/11

  11. Role of Charge Carriers in the Bending of Dielectric Elastomers

    Gildas Coativy, Kaori Yuse, Gildas Digue, Véronique Perrin, Laurence Seveyra, Florent Dalmas, Sébastien Livi, Joël Courbon, Hidemasa Takana, Jean Yves Cavaille

    Nineteenth International Conference on Flow Dynamics 2022/11/10

  12. Are Charge Carriers Responsible for the Electroactivity of Polyurethane?

    Gildas Coativy, Kaori Yuse, Gildas Digue, Laurence Seveyra, Veronique Perrin, Florent Dalmas, Sebastien Livi, Joel Courbon, Hidemasa Takana, Jean Yves, Cavaillé

    Nineteenth International Conference on Flow Dynamics 2022/11/11

  13. Synthesis of Carbon Catalysts Using Ultrasonic Cavitation Plasma for Oxygen Reduction Reaction

    Ryotaro Harakawa, Nozomi Takeuchi, Shungo Zen, Souta Imaizumi, Hidemasa Takana, Oi Lun Li

    Nineteenth International Conference on Flow Dynamics 2022/11/10

  14. LES of MHD Turbulent Taylor-Couette Flow in Axial Magnetic Field

    Hiromichi Kobayashi, Ryo Sasaki, Takayasu Fujino, Hidemasa Takana

    The 12th Symposium on Turbulence and Shear Flow Phenomena (TSFP-12) 2022/07/19

  15. 誘電バリア放電の環境・エネルギー分野への応用展開 Invited

    高奈秀匡

    プラズマアクチュエータ研究会 第8回シンポジウム 2022/01/17

  16. セルロース分散流中のナノ繊維静電配向に関する数値シミュレーション

    薄井拓巳, 高奈秀匡

    日本機械学会 第99期流体工学部門講演会 2021/11/08

  17. フローフォーカシング法におけるナノ繊維静電配向効果に関する実験解析

    福森賢, 高奈秀匡

    日本機械学会 第99期流体工学部門講演会 2021/11/08

  18. 高効率二酸化炭素分離吸収に向けたイオン液体静電噴霧に与えるパルス電圧印加効果

    大竹一彦, 高奈秀匡

    混相流シンポジウム2021 2021/08/22

  19. 機能性流体工学のフロンティア応用 Invited

    高奈秀匡

    第89回マテリアルズ・テーラリング研究 2021/08/06

  20. Liquid Metal Flows with MHD Interaction in Rotating Co-axial Cylinder,

    R. Sasaki, T. Fujino, H. Takana, H. Kobayashi

    The 9th edition of the International Conference on Computational Methods for Coupled Problems in Science and Engineering (COUPLED PROBLEMS 2021) 2021/06/16

  21. セルロース分散流におけるナノ繊維の電場配向制御特性

    Takumi Usui, Ryo Sato, Hidemasa Takana

    2021/03/12

  22. Effect of Flow Channel Configuration on Nano Fibril Alignment by Elongational Flow

    Satorou Fukumori, Hidemasa Takana

    2020/11/12

  23. Science of Ultrafine Droplet and High Speed Impact

    Takehiko Sato, Masao Watanabe, Takeru Yano, Yuka Iga, Kazumichi Kobayashi, Toshiyuki Hayase, Jun Ishimoto, Makoto Ohta, Atsuki Komiya, Hidemasa Takana, Kiyonobu Ohtani, Junnosuke Okajima, Satoshi Uehara, Suguru Miyauchi, Hitomi Anzai

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 2020/10

  24. CO2 Detection Using an Ionic Liquid-Core Fiber-Optic Structure and Material Optimization Using Machine Learning

    Miku Okura, Hidemasa Takana, Xinyue Wang, Yue Huang, Fumio Ohuchi, Xinyue Wang, Rei Furukawa

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 2020/10

  25. Control of reaction field in cavitation plasma for high-speed and eco-friendly synthesis of carbon catalysts

    Nozomi Takeuchi, Shoya Yamazaki, Sota Imaizumi, Hidemasa Takana

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 2020/10

  26. Formation and Propagation of Ionization Waves During Ns Pulse Breakdown in Plane-to-Plane Geometry

    Keegan Orr, Xin Yang, Ilya Gulko, Igor V. Adamovich, Hidemasa Takana

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 2020/10

  27. Development of Numerical Modeling on Enhancement of CO2 Absorption by Ionic Liquid Electrospray

    Hidemasa Takana, Takayasu Fujino

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 2020/10

  28. Numerical Simulation of a Thermal Plasma Reactor for the Wastes to Energy

    Sooseok Choi, Hidemasa Takana

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 2020/10

  29. Study on MHD phenomena in Co-axial Energy Conversion Device

    Hiromichi Kobayashi, Hidemasa Takana, Ryo Sasaki, Takayasu Fujino

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 2020/10

  30. Multifunctional hybrid filaments comprising aligned nanocellulose and carbon nanotubes synthesized by a field-assisted flow focusing method

    Anthony Dichiara, Heather G. Wise, Hidemasa Takana

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 2020/10

  31. Computational Simulation on Particle Laden Flow during Polymer Cold-Spray Process

    Chrystelle Bernard, Hidemasa Takana, Olivier Lame, Kazuhiro Ogawa, Jean-Yves Cavaille

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 2020/10

  32. Response Characteristics of Cellulose Nanofibril under AC Electric Field during Flow Focusing

    Hidemasa Takana, Mengfei Guo

    Proc. of the 20th Int. Symp. on Advanced Fluid Information 2020/10

  33. Modeling of Argon-Steam Thermal Plasma Flow for Abatement of Fluorinated Compounds

    Jiří Jeništa, Shiu-Wu Chau, Hidemasa Takana, Hideya Nishiyama, Milada Bartlov, Vladimír Aubrecht, Anthony B Murphy

    Proc. of 17th Int. Conf. on Flow Dynamics 2020/10

  34. Cavitation Flow to Generate Plasma in Organic Solvent for Carbon Particle Synthesis

    Nozomi Takeuchi, Shoya Yamazaki, Sota Imaizumi, Hidemasa Takana

    Proc. of 17th Int. Conf. on Flow Dynamics 2020/10

  35. Study on MHD Annular Flows Driven by Rotating Co-axial Cylinder

    Ryo Sasaki, Takayasu Fujino, Hidemasa Takana, Hiromichi Kobayashi

    Proc. of 17th Int. Conf. on Flow Dynamics 2020/10

  36. Property Investigation of Imidazolium-Acetate Based Ionic Liquids Using Experimental Measurements and Machine Learning

    Miku Okura, Hidemasa Takana, Xinyue Wang, Yue Huang, Fumio S. Ohuchi, Rei Furukawa

    Proc. of 17th Int. Conf. on Flow Dynamics 2020/10

  37. Aligned Conductive Composite Filaments using Field Assisted Flow Focusing System

    Heather Wise, Hidemasa Takana, Anthony Dichiara

    Proc. of 17th Int. Conf. on Flow Dynamics 2020/10

  38. Numerical Simulation on Orientation Control of Cellulose Nano Fibril by Electric Field during Flow Focusing

    Hidemasa Takana, Ryo Sato

    Proc. of 17th Int. Conf. on Flow Dynamics 2020/10

  39. Computational Simulation on Effect of Flow Channel Configuration on Nano Fibril Alignment

    Satoru Fukumori, Hidemasa Takana

    2020/08/21

  40. Optical Investigation of Primary Breakup in Liquid Sprays

    Noritsune Kawaharada, Hidemasa Takana, Friedrich Dinkelacker

    16th International Conference on Flow Dynamics (ICFD2019) 2019/11/08

  41. Computational Simulation on Control of Cellulose Nano Fibril by Alternative Electric Field

    Hidemasa TAkana, Mengfei Guo

    16th International Conference on Flow Dynamics (ICFD2019) 2019/11/08

  42. Electric Field-Assisted Alignment of Cellulose Nanofibrils and Carbon Nanotubes in a Flow Focusing System

    Heather Wise, Hidemasa Takana, Anthony Dichiara

    16th International Conference on Flow Dynamics (ICFD2019) 2019/11/08

  43. Investigation of the Thermal Behavior of In-flight Polymer Particle during Cold-Spray Process

    Chrystelle Bernard, Hidemasa Takana, Gildas Diguet, Kesavan Ravi, Oliver Lame, Kazuhiro Ogawa, Jean-Yves Cavaillé

    19th International Symposium on Advanced Fluid Information (AFI-2019) 2019/11/07

  44. Alignment of Cellulose Nanofibrils and Carbon Nanotubes in a Flow Focusing System Assisted by Electric Field

    Heather Wise, Hidemasa Takana, Anthony Dichiara

    19th International Symposium on Advanced Fluid Information (AFI-2019) 2019/11/07

  45. High-Speed Imaging of Primary Breakup in Electrosprays

    Noritsune Kawaharada, Hidemasa Takana, Friedrich Dinkelacker

    19th International Symposium on Advanced Fluid Information (AFI-2019) 2019/11/07

  46. Development of Numerical Modeling on Enhancement of CO2 Absorption by Ionic Liquid Electrospray

    Hidemasa Takana, Koji Kawatani, Takayasu Fujino

    19th International Symposium on Advanced Fluid Information (AFI-2019) 2019/11/07

  47. Electric Field Measurements in Atmospheric Pressure Discharges by Electric Field Induced Second Harmonic (F-FISH) Generation

    M. Simei Simei, Y. Tang, K. Orr, I. Adamovich, H. Takana, H. Nishiyama

    19th International Symposium on Advanced Fluid Information (AFI-2019) 2019/11/07

  48. Optical Properties of 1-ethyl-3-methylimidazolium Acetate Before and After Carbon Dioxide Exposure

    Miku Okura, Rei Furukawa, Hidemasa Takana, Fumio Ohuchi

    19th International Symposium on Advanced Fluid Information (AFI-2019) 2019/11/07

  49. イオン液体静電噴霧による⼆酸化炭素分離吸収に与える環境温度依存性

    原 望, 高奈秀匡, 牧野貴至, 金久保光央

    第42回溶液化学シンポジウム 2019/10/31

  50. ⼆酸化炭素分離吸収のための多孔質体エミッター型イオン液体静電噴霧の基礎特性

    川原田鎮一, 高奈秀匡

    第42回溶液化学シンポジウム 2019/10/30

  51. Computational Simulation on Ionic Liquid Electrospray for High Efficiency Carbon Dioxide Absorption

    Hidemasa Takana, Koji Kawatani, Nozomi Hara

    International Symposium on New Plasma and Electrical Discharge Applications; and on Dielectric Materials (ISNPEDADM 2019) 2019/10/09

  52. Enhancement of CO2 Absorption by Ionic Liquid Electrospray

    Hidemasa Takana, Nozomi Hara, Takashi Makino, Mitsuhiro Kanakubo

    12th European Congress of Chemical Engineering and 5th European Congress of Applied Biotechnology (ECCE12-ECAB5) 2019/09/19

  53. Ignition Experiments by Nanosecond Repetitively Pulsed Discharges in Intense Turbulence for Super Lean Burn at Engine Condition

    K. Uesugi, Y. Morii, T. Mukoyama, T. Tezuka, S. Hasegawa, H. Nakamura, H. Takana, K. Maruta, T. Yokomori, I. Norimasa

    2019 JSAE/SAE Powertrains, Fuels and Lubricants International Meeting 2019/08/27

  54. Development of Non-equilibrium Plasma and Combustion Integrated Model for Reaction Analysis

    M. Horikoshi, T. Tanaka, K, Okihama, Y. Kon, H. Takana

    2019 JSAE/SAE Powertrains, Fuels and Lubricants International Meeting 2019/08/29

  55. Numerical Simulation on Electrostatic Alignment of Cellulose Nano Fibril for High Strength Single Fiber Fabrication

    Ryo Sato, Hidemasa Takana

    2019/08/05

  56. Effect of Alternative Electric Field and Elongational Flow on Control of Cellulose Nano Fibril

    Hidemasa Takana, Yusuke Takeda, Misaki Kiuchi

    4th International Conference on Natural Fibers (ICNF2019) 2019/07/02

  57. 水中パルスキャピラリー放電による気泡界面挙動および分解特性

    川原田鎮一, 上原聡司, 高奈秀匡, 西山秀哉

    日本機械学会第96期流体工学部門講演会 2018/11/30

  58. イオン液体静電噴霧の特性解析と高効率CO2分離回収への応用

    原望, 山本和輝, 高奈秀匡, 牧野貴至, 金久保光央

    日本機械学会第96期流体工学部門講演会 2018/11/30

  59. Modeling Nanoparticle Synthesis in an ICP Reactor Using QMOM International-presentation

    Maxim Van Cappellen, Pierre Proulx, Sivania Lopes, Hidemasa Takana

    18th International Symposium on Advanced Fluid Information (AFI-2018) 2018/11/08

  60. Modeling of Inhomogeneous Plasma-Species Mixing in Atmospheric-Pressure Argon-Steam Arc Discharge for Broad Range of Currents and Argon Mass Flow Rates International-presentation

    Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, Milada Bartlova, Vladimir Aubrecht, Anthony B. Murphy

    18th International Symposium on Advanced Fluid Information (AFI-2018) 2018/11/08

  61. Numerical Modeling on Enhancement of CO2 Absorption by Ionic Liquid Electrospray International-presentation

    Hidemasa Takana, Koji Kawatani, Takayasu Fujino

    18th International Symposium on Advanced Fluid Information (AFI-2018) 2018/11/08

  62. Electric Field Measurements in Nanosecond Pulse Discharges in Air and in Hydrogen Flame International-presentation

    Marien Simeni Simeni, Yong Tang, Kraig Frederickson, Igor Adamovich, Hidemasa Takana, Hideya Nishiyama

    18th International Symposium on Advanced Fluid Information (AFI-2018) 2018/11/08

  63. Fundamental Characteristics on Alignment of Cellulose Nano-fibrils by AC Electric Field International-presentation

    Ryo Sato, Mengfei Guo, Hidemasa Takana

    15th International Conference on Flow Dynamics (ICFD2018) 2018/11/08

  64. Dynamic Characteristics of Underwater DC Biased Pulsed Capillary Discharge for High Efficiency Water Purification International-presentation

    Shinichi Kawaharada, Satoshi Uehara, Hidemasa Takana, Hideya Nishiyama

    15th International Conference on Flow Dynamics (ICFD2018) 2018/11/08

  65. Cellulose Nano Fibril Alignment Controled by Electric Field in Elongational Flow for Innovative Single Fiber Fabrication International-presentation

    Misaki Kiuchi, Yusuke Takeda, Hidemasa Takana

    15th International Conference on Flow Dynamics (ICFD2018) 2018/11/08

  66. Modelling of Diffusion of Plasma Species in Argon-Steam Arc Discharge for Subsonic to Supersonic Flow Regimes International-presentation

    Jiri Jenista, Hidemasa Takana, Hideya Nishiyama, Milada Bartlova, Vladimir Aubrecht, Anthony B. Murphy

    15th International Conference on Flow Dynamics (ICFD2018) 2018/11/08

  67. CO2 Absorption Separation Using Acetate-based Ionic Liquids International-presentation

    Takashi Makino, Yuki Kohno, Mitsuhiro Kanakubo, Nozomi Hara, Hidemasa Takana

    15th International Conference on Flow Dynamics (ICFD2018) 2018/11/08

  68. Investigation of the Flow Field Dynamics during Cold-Spray of Polymers International-presentation

    Chrystelle A. Bernard, Hidemasa Takana, Kesavan Ravi, Olivier Lame, Kazuhiro Ogawa, Jean-Yves Cavaille

    15th International Conference on Flow Dynamics (ICFD2018) 2018/11/07

  69. Computational Simulation on Physico-chemical Characteristics of Nano Second Pulsed DBD in Lean Air/Methane Mixture for Plasma Assisted Ignition International-presentation Invited

    TAKANA Hidemasa

    2018 Korean Physical Society Fall Meeting 2018/10/25

  70. プラズマ着火促進のための予混合気中でのナノ秒パルス放電に関する数値シミュ レーション

    今陽平, 高奈秀匡

    日本機械学会熱工学コンファレンス2018 2018/10/20

  71. 機能性流体工学を基盤としたフロンティア展開 Invited

    高奈 秀匡

    第1回東京工業大学,筑波大学,東北大学3大学学生合同セミナー 2018/09/14

  72. 高強度セルロース単繊維創製に向けた伸長流動場でのナノ繊維静電配向制御

    木内望早来, 武田祐介, 高奈秀匡

    日本機械学会2018年度年次大会 2018/09/12

  73. 平行平板間におけるプラズマアクチュエータを用いた冷却デバイスの開発

    上原聡司, 佐藤瞭, 冨田啓太郎, 高奈秀匡, 西山秀哉

    日本機械学会2018年度年次大会 2018/09/10

  74. Computational Simulation on Streamer Discharge in Air/Fuel Mixture for Plasma Assisted Combustion in Internal Engine International-presentation Invited

    TAKANA Hidemasa

    2018 Asia-Pacific Conference on Plasma and Terahertz Science (APCOPTS) 2018/08/17

  75. イオン液体静電噴霧による二酸化炭素分離吸収の高性能化に向けて実験的研究

    原望, 山本和輝, 高奈秀匡, 牧野貴至, 金久保光央

    混相流シンポジウム2018 2018/08/08

  76. 流動場におけるナノ繊維の静電配向制御による高強度セルロース単繊維創製

    木内望早来, 武田祐介, 高奈秀匡

    混相流シンポジウム2018 2018/08/08

  77. 細管内放電における気泡界面挙動および分解特性

    川原田鎮一, 上原聡司, 高奈秀匡, 西山秀哉

    混相流シンポジウム2018 2018/08/08

  78. Modelling of Plasma-Species Mixing in Argon-Steam Arc Discharge for Broad Range of Currents and Argon Mass Flow Rates International-presentation

    Jiri Jenista, Hidemasa Takana, Satoshi Uehara, Hideya Nishiyama, Milada Bartlova, Vladimir Aubrecht, Anthony B. Murphy

    7th International Conference on Microelectronics and Plasma Technology (ICMAP 2018) 2018/07/25

  79. イオン液体静電噴霧の流体力学的特性解析と二酸化炭素分離吸収への応用 Invited

    高奈 秀匡

    第1回熱流体フォーラム,芝浦工業大学熱流体力学研究会 2018/05/19

  80. Ionic Liquids for CO2 Adsorption, SOM Analysis of Ionic Liquids, MD Simulations International-presentation

    TAKANA Hidemasa

    UW-TU: Academic Open Space Planning Workshop 2018-Spring 2018/04/23

  81. セルロース単繊維創製のための流動下におけるナノ繊維静電配向特性

    木内望早来, 武田祐介, 高奈秀匡

    日本機械学会東北支部第53期総会・講演会 2018/03/15

  82. Fundamental Characteristics of Ionic Liquid Electrospray and its Application to Energy and Environmental Technologies International-presentation

    Hidemasa Takana, Koyo Saegusa, Kazuki Yamamoto

    Taiwan-Japan International Conference on Magnetic Fluids 2017 (TJ-ICMF2017) 2017/12/14

  83. Fundamental Characteristics of Ionic Liquid Electrospray and its Application to CO2 Absorption Technology International-presentation

    Hidemasa Takana

    UW-TU: Academic Open Space Workshop, (AOS-Fall 2017) 2017/11/15

  84. Computational Simulation on Fundamental Characteristics of Nanosecond Pulsed DBD and Its Application to Combustion Assist International-presentation

    Hidemasa Takana, Igor Adamovich, Hideya Nishiyama

    14th International Conference on Flow Dynamics (ICFD2017) 2017/11/01

  85. Experimental Analysis on Fluid Dynamical Characteristics of Ionic Liquid Electrospray International-presentation

    Hidemasa Takana, Koyo Saegusa

    9th JSME-KSME Thermal and Fluids Engineering Conference (TFEC9) 2017/10/27

  86. Numerical Simulation on Droplet Ejection in Ionic Liquid Electrospray International-presentation

    Koji Kawatani, Hidemasa Takana

    9th JSME-KSME Thermal and Fluids Engineering Conference (TFEC9) 2017/10/27

  87. Control of Cellulose Nanofibril Alignment and Rotary Diffusion in Flow by Alternative Electric Field International-presentation

    Hidemasa Takana, Yusuke Takeda, Fredrik Lundell

    4th International Cellulose Conference 2017 (ICC 2017, Fukuoka) 2017/10/17

  88. プラズマアクチュエータ効果を用いた管内微粒子搬送/イオン液体静電噴霧のエネルギー・環境応用/セルロース新素材創製プロセス Invited

    高奈秀匡

    日本フルードパワーシステム学会第10回機能性流体テクノロジーの次世代FPSへの展開に関する研究委員会 2017/09/25

  89. 非平衡プラズマを用いた自着火促進効果の数値解析

    今陽平, 高奈秀匡, 西山秀哉

    日本機械学会2017年度年次大会 2017/09/03

  90. 高効率水質浄化のためのパルス放電気泡による液中化学反応とラジカル拡散の実験・計算統合解析

    何雨辰, 西山秀哉, 高奈秀匡, 上原聡司

    日本機械学会2017年度年次大会 2017/09/03

  91. 流動下でのナノ繊維静電配向特性と高強度セルロース新素材プロセスへの応用

    武田祐介, BROUZET Christophe, MITTAL Nitesh, LUNDELL Fredrik, 高奈秀匡

    混相流シンポジウム2017 2017/08/19

  92. イオン液体静電噴霧における液滴形成過程および噴霧特性の数値シミュレーション

    川谷康二, 高奈秀匡

    混相流シンポジウム2017 2017/08/19

  93. Effect of Pulsed Voltage on Characteristics of Ionic Liquid Electrospray International-presentation

    Hidemasa Takana, Koyo Saegusa

    2017 Annual Meeting of the Electrostatics Society of America 2017/06/13

  94. イオン液体静電噴霧の流体力学的特性解析と宇宙推進器への応用展開

    平成29(2017)年度イオン液体研究会 2017/05/25

  95. ナノ繊維静電配向制御による高機能セルロース新素材プロセス技術の確立

    高奈秀匡, 武田祐介, 船本健一, 小川和洋

    東北大学学際科学フロンティア研究所平成28年度成果報告会 2017/02/15

  96. 静電混相流動制御法の確立とエネルギーおよび材料分野へ応用展開 Invited

    高奈秀匡

    平成28年度磁性流体連合講演会 2016/12/08

  97. Dynamic Behavior of Microdroplet Ejection by Ionic Liquid Electrospray International-presentation

    Hidemasa Takana, Koyo Saegusa

    5th Asian-Pacific Conference on Ionic Liquids and Green Processes (APCIL-5) 2016/10/26

  98. 静電混相流動における先端可視化解析

    高奈秀匡

    日本機械学会2016年度年次大会 先端技術フォーラム【F0 51005】複雑流動現象の解析技術と学理構築 2016/09/11

  99. ナノ繊維静電配向制御による高機能セルロース新素材プロセス技術の確立

    高奈秀匡, 武田祐介, 船本健一, 小川和洋

    東北大学学際科学フロンティア研究所平成27年度成果報告会 2016/03/08

  100. Experimental Analysis on Dynamic Behavior of Ionic Liquid Electrospray by High Speed Imaging International-presentation

    Hidemasa Takana

    International Workshop on Flow Dynamics and Spintronics, KTH 2015/11/12

  101. 高度風力利用を目指した電磁エネルギー変換装置の動的特性解析

    高奈秀匡, 谷田彬

    日本機械学会第93期流体工学部門講演会 2015/11/07

  102. Visualization and Analysis on Electrospray Formation with Ionic Liquid International-presentation

    Koyo Saegusa, Shohei Shinoki, Hidemasa Takana

    International Conference on Advanced Technology in Experimental Mechanics 2015 (ATEM'15) 2015/10/04

  103. プラズマおよびイオン液体の環境・エネルギー技術への応用展開

    高奈秀匡

    2015年度日本機械学会年次大会, ワークショップ:W05100「機能性流体を基盤としたフロンティア流体工学への新展開」 2015/09/13

  104. イオン液体静電噴霧の可視化と特性評価

    三枝耕陽, 高奈秀匡

    混相流シンポジウム2015 2015/08/04

  105. Innovative Powder Transportation Using Dielectric Barrier Discharge Tube International-presentation

    Hidemasa Takana, Shusaku Nakakawaji, Satoshi Uehara, Hideya Nishiyama

    22nd International Symposium on Plasma Chemistry 2015/07/05

  106. ナノパルス放電による内燃機関プラズマ着火に関する数値シミュレーション

    高奈秀匡, Igor V. Adamovich, 西山秀哉

    日本物理学会(領域2)2014年秋季大会・応用物理学会プラズマエレクトロニクス分科会第32回プラズマプロセシング研究会・プラズマ・核融合学会第31回年会 (Plasma 2014) 2014/11/18

  107. プラズマアクチュエータ効果を用いたナノ粒子輸送

    中川路周作, 高奈秀匡, 西山秀哉

    日本機械学会2014年度年次大会 2014/09/07

  108. 自然エネルギー高度利用を目指した電磁エネルギー変換装置の開発と性能評価 Invited

    高奈 秀匡

    日本フルードパワーシステム学会第10回機能性流体との融合化によるフルードパワーシステムの新展開に関する研究委員会 2014/09/01

  109. DBDプラズマチューブを用いたナノ粒子の輸送と表面浄化

    中川路周作, 高奈秀匡, 西山秀哉

    混相流シンポジウム2014 2014/07/28

  110. Kinetics of Excited States and Radicals in a Nanosecond Pulse Discharge and Afterglow in Nitrogen and Air International-presentation

    Ivan Shkurenkov, David Burnette, Walter R. Lempert, Igor V. Adamovich, Hidemasa Takana, Hideya Nishiyama

    13th International Symposium on Advanced Fluid Information (AFI-2013) 2013/11/25

  111. Computational Simulation of Highly Reactive DBD Plasma for Combustion Enhancement International-presentation

    Hidemasa Takana, Hideya Nishiyama

    12th International Conference on Fluid Control, Measurements, and Visualization (FLUCOME 2013) 2013/11/18

  112. ナノパルス放電による内燃機関燃焼促進に関する数値シミュレーション

    高奈秀匡, 西山秀哉

    自動車技術会2013年秋季大会学術講演会 2013/10/23

  113. Computational Simulation on Radical Production by Methane-Air DBD for Plasma Assisted Combustion International-presentation

    Hidemasa Takana, Hideya Nishiyama

    International Workshop on Flow Dynamics Related to Energy, Aerospace and Material Science 2013/09/10

  114. Numerical Study on Nano-Second Pulse Dielectric Barrier Discharge for Plasma Assisted Combustion International-presentation

    Hidemasa Takana, Hideya Nishiyama

    21st International Symposium on Plasma Chemistry 2013/08/04

  115. Numerical Simulation of High-energy Nano-second Pulse DBD for Combustion Enhancement in Internal Engine International-presentation

    Hidemasa Tanaka, Hideya Nishiyama

    31th International Conference on Phenomena in Ionized Gases (ICPIG-2013) 2013/07/14

  116. 内燃機関燃焼促進のための反応性プラズマシミュレーション Invited

    高奈 秀匡

    日本フルードパワーシステム学会第5回機能性流体との融合化によるフルードパワーシステムの新展開に関する研究委員会 2013/06/11

  117. Radical Production Characteristics by DBD Plasma at High Pressure and High Temperature Conditions International-presentation

    Hidemasa Takana

    International Plasma Engineering for Nano Forum 2012 2012/11/28

    More details Close

    高温・高圧下でのDBD放電によるラジカル生成特性

  118. 燃焼促進用反応性プラズマ流動シミュレーション Invited

    高奈秀匡

    日本実験力学会第7回機能性流体に関する公開研究会 2012/11/13

  119. Numerical Simulation on Radical Generation and Rapid Gas Heating by DBD Plasma for Plasma Assisted Combustion International-presentation

    Hidemasa Takana

    スウェーデン王立工科大学機械工学科 2012/10/17

  120. Streamer Dynamics for Radical Generation in Air/Methane Mixture under High Temperature and High Pressure International-presentation

    Hidemasa Takana, Hideya Nishiyama

    9th International Conference on Flow Dynamics (ICFD2012) 2012/09/19

  121. Studies on Non-Equilibrium Feature of Radio-Frequency Helium Plasma Flow at Atmospheric-Pressure International-presentation

    Hidemasa Takana, Hideya Nishiyama, Zhi-Bin Wang, Pei-Si Le, He-Ping Li, Cheng-Yu Bao

    12th International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration (AFI/TFI2012) 2012/09/19

  122. 高温・高圧下における空気・メタンDBD放電によるラジカル生成特性

    高奈秀匡, 田中康規, 西山秀哉

    日本機械学会2012年度年次大会 2012/09/09

  123. 空気・メタンDBD放電によるラジカル生成に与える温度および圧力の効果

    高奈秀匡, 田中康規, 西山秀哉

    日本混相流学会年会講演会2012 2012/08/09

  124. 高温・高圧下における空気・メタンDBD放電による高活性化学種の生成特性

    高奈秀匡

    IHI・東北大学流体科学研究所技術研究交流会 2012/03/15

  125. Characterization of Reactive Species Production by Air-Methane Dielectric Barrier Discharge at High Pressure and High Temperature Conditions International-presentation

    オハイオ州立大学機械航空工学科 2012/02/21

  126. 高温・高圧下における空気・メタン混合気中のストリーマ進展過程とラジカル生成特性

    第10回応用物理学会プラズマエレクトロニクス分科会新領域研究会/電気学会プラズマ技術委員会 2011/12/15

    More details Close

    「大気圧プラズマ生成における気相反応シミュレーション」

  127. Radical Generation During Streamer Propagation in Methane/Air DBD Under High Pressure and High Temperature Conditions International-presentation

    Hidemasa Takana, Yasunori Tanaka, Hideya Nishiyama

    11th International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration (AFI/TFI2011) 2011/11/09

  128. Computational Study on Atmospheric RF Discharge with Kinetic-Fluid Integrated Model International-presentation

    Zhi-Bin Wang, Pei-Si Le, He-Ping Li, Cheng-Yu Bao, Hidemasa Takana, Hideya Nishiyama

    11th International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration (AFI/TFI2011) 2011/11/09

  129. Impact of Liquid Drops on Heated Grooved Surfaces International-presentation

    Sivakumar Deivandren, Kazunari Katagiri, Tomoki Nakajima, Hidemasa Takana, Hideya Nishiyama

    11th International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration (AFI/TFI2011) 2011/11/09

  130. 高温・高圧下における空気・メタン混合気中のストリーマ進展過程

    高奈秀匡, 田中康規, 西山秀哉

    日本混相流学会年会講演会2011 2011/08/06

  131. Characterization of Multiple Bubble Jets with Pulsed Discharge for Water Treatment International-presentation

    Hideya Nishiyama, Ryosuke Nagai, Kei Niinuma, Hidemasa Takana

    20th International Symposium on Plasma Chemistry (ISPC20) 2011/07/24

  132. Physicochemical Characteristics of Methane-Air Dielectric Barrier Discharge at High Pressure International-presentation

    Hidemasa Takana, Yasunori Tanaka, Hideya Nishiyama

    20th International Symposium on Plasma Chemistry (ISPC20) 2011/07/24

  133. Chemical Kinetic Study of Methane-Air Plasma Flow at High Pressure International-presentation

    Hidemasa Takana, Yasunori Tanaka, Hideya Nishiyama

    7th International Conference on Flow Dynamics 2010/11/01

  134. Fundamental Study of Methane-Air Plasma Flow at High Pressure International-presentation

    Hidemasa Takana, Yasunori Tanaka, Hideya Nishiyama

    10th International Symposium on Advanced Fluid Information and Transdiscriplinary Fluid Integration (AFI/TFI-2010) 2010/11/01

  135. 管内MR流体流動における壁面相互作用に関する基礎特性

    西山秀哉, 高奈秀匡, 篠原圭介, 水木琴絵, 片桐一成, 太田信

    日本レオロジー学会第58回レオロジー討論会 2010/10/04

  136. 微粒子静電加速および基板形状最適化による超音速微粒子流動加工の高性能化

    高奈秀匡, 李紅岩, 小川和洋, 西山秀哉

    電気学会新エネルギー・環境研究会 2010/08/26

  137. Experimental Analysis on MR Fluid Channel Flow Dynamics with Complex Fluid-Wall Interactions International-presentation

    Hideya Nishiyama, Hidemasa Takana, Keisuke Shinohara, Kotoe Mizuki, Kazunari Katagiri, Makoto Ohta

    12th International Conference on Magnetic Fluids (ICMF12) 2010/08/01

  138. コールドスプレーによるキャビティー充填加工の計算・実験統合解析

    高奈秀匡, 李紅岩, 小川和洋, 西山秀哉

    2009年度溶射合同講演大会(日本溶射協会第90回(2009年度秋季)全国講演大会・(社)高温学会溶射部会第18回溶射総合討論会) 2009/12/03

  139. Computational Simulation of Highly Reactive Air Plasma Jet under High Pressure Conditions International-presentation

    Hidemasa Takana, Yasunori Tanaka, Hideya Nishiyama

    9th International Symposium on Advanced Fluid Information and Transdiscriplinary Fluid Integration (AFI/TFI-2009) 2009/11/04

  140. Computational and Experimental Studies on Supersonic Particulate Jet Process for Cavity Filling International-presentation

    Hidemasa Takana, Hong Yang Li, Kazuhiro Ogawa, Tsunemoto Kuriyagawa, Hideya Nishiyama

    9th International Symposium on Advanced Fluid Information and Transdiscriplinary Fluid Integration (AFI/TFI-2009) 2009/11/04

  141. 省電力型DC-RFハイブリッドプラズマ流動システムにおける微粒子熱流動特性と球形化プロセス

    高奈秀匡, 井川純二, ジャン・ジュヨン, 中嶋智樹, 西山秀哉

    可視化情報学会全国講演会(米沢2009) 2009/10/24

  142. Characteristics of Atmospheric Reactive Air Jet Generated by Dielectric Barrier Discharge for Industrial Applications International-presentation

    Hideya Nishiyama, Hidemasa Takana, Yoshihiko Iwabuchi, Hirofumi Shimizu

    19th International Symposium on Plasma Chemistry (ISPC19) 2009/07/26

  143. 大気圧パルス放電による高活性空気ジェットの生成とその基礎特性

    高奈秀匡

    第6回大気圧プラズマ流による人間環境保全技術に関する研究分科会 2009/03/13

  144. Chracteristics of Small Power Reactive Air Jet Generated by Dielectric Barrier Discharge for Combustion Enhancement International-presentation

    Yoshihiko Iwabuchi, Hirofumi Shimizu, Hidemasa Takana, Yoshikatsu Nakano, Hideya Nishiyama

    8th International Symposium on Advanced Fluid Information and Transdisciplinary Fluid Integration (AFI/TFI-2008) 2008/12/19

  145. Optimization of Small Power Reactive Air Jet for Industrial Applications International-presentation

    Hidemasa Takana, Hideya Nishiyama

    5th International Conference on Flow Dynamics 2008/11/17

  146. Computational and Experimental Studies on Cavity Filling Process by Cold Gas Dynamic Spray International-presentation

    Hidemasa Takana, Hong Yang Li, Kazuhiro Ogawa, Tsunemoto Kuriyagawa, Hideya Nishiyama

    2008 ASME International Mechanical Engineering Congress & Exposition 2008/10/31

  147. Purification and Electrical Collection of Nano/Micro Particulate Pollutant Suspended in Air International-presentation

    Hidemasa Takana

    GCOE, Institute of Fluid Sciencce, Tohoku University-Tsinghua University Joint Workshop 2008/10/27

  148. Control of Charged Nano/Micro Particle Behavior in an Impinging Supersonic Jet International-presentation

    Hidemasa Takana, Kazuhiro Ogawa, Tsunemoto Kuriyagawa, Hideya Nishiyama

    14th International Congress on Plasma Physics (ICPP2008) 2008/09/08

  149. ナノ・マイクロ粒子ジェットとキャビティー基板との衝突干渉制御による超音速微粒子ジェット加工の高度化

    高奈秀匡, 李紅岩, 小川和洋, 厨川常元, 西山秀哉

    日本流体力学会年会2008 2008/09/05

  150. 超音速微粒子ジェット加工のおけるナノ・マイクロ粒子流とキャビティー基板との衝突干渉制御

    高奈秀匡, 李紅岩, 小川和洋, 厨川常元, 西山秀哉

    日本混相流学会年会講演会2008 2008/08/08

  151. ナノ・マイクロ粒子高速流動の衝突過程とキャビティー充填加工の高度化

    高奈秀匡, 李紅岩, 小川和洋, 厨川常元, 西山秀哉

    日本機械学会2008年次大会 2008/08/04

  152. 6.粒子飛行制御による超音速ナノ・マイクロジェットプロセスの高性能化

    第20回東北混相流研究会 2008/05/16

  153. キャビティーを有する基板への超音速微粒子ジェット加工の高性能化

    高奈秀匡, 李紅岩, 小川和洋, 厨川常元, 西山秀哉

    平成19年度衝撃波シンポジウム 2008/03/17

  154. Evaluation of Sealing Characteristics in Magneto-Rheological Fluid Channel Flow International-presentation

    Kotoe Mizuki, Tomoki Nakajima, Kazunari Katagiri, Hideya Nisyiyama

    7th International Symposium on Advanced Fluid Information and 4th International Symposium on Transdisciplinary Fluid Integration 2007/12/14

  155. Computational Simulation on Acceleration Characteristic of Micro/Nano Particle in Supersonic Micro Jet by Electrostatic Force for Advanced Dental Treatment International-presentation

    Tsunemoto Kuriyagawa, Hideya Nishiyama

    7th International Symposium on Advanced Fluid Information and 4th International Symposium on Transdisciplinary Fluid Integration 2007/12/14

  156. 静電加速によるマイクロ・ナノ粒子超音速ジェットの高性能化

    小川和洋, 庄子哲雄, 西山秀哉

    日本機械学会流体工学部門講演会 2007/11/17

  157. 燃焼促進のための誘電体バリア放電による空気プラズマ流の高機能化

    清水洋文, 新倉将太, 片桐一成, 仲野是克, 西山秀哉

    日本機械学会流体工学部門講演会 2007/11/17

  158. Evaluation of Sealing Characteristics in MR Fluid Channel Flow Relating to Magneto-Rheological Properties International-presentation

    Hideya Nishiyama, Kotoe Mizuki, Tomoki Nakajima, Kazunari Katagiri

    4th International Conference on Flow Dynamics 2007/09/26

  159. Reactive Air Jet Generated by Dielectric Barrier Discharge for Ignition Assist International-presentation

    Hideya Nishiyama, Hirofumi Shimizu, Shota Nikura, Kazunari Katagiri, Yoshikatsu Nakano

    4th International Conference on Flow Dynamics 2007/09/26

  160. Analysis of Air Radical Flow Generated by Pulsed Discharge for Combustion Assist International-presentation

    Hideya Nishiyama, Shota Niikura, Hirofumi Shimizu, Kazunari Katagiri, Yoshikatsu Nakano

    18th International Symposium on Plasma Chemistry 2007/08/26

  161. Particle Modeling of Low Pressure DC Microdischarges in a Narrow Channel International-presentation

    Lizhu Tong, Sigeru Yonemura, Hidemasa Takana, Hideya Nishiyama

    18th International Symposium on Plasma Chemistry 2007/08/26

  162. Optimization of Cold Gas Dynamic Spray Process by Computational Simulation International-presentation

    Kazuhiro Ogawa, Tetsuo Shoji, Hideya Nishiyama

    5th Joint ASME/JSME Fluid Engineering Conference 2007/07/30

  163. 数値実験による静電加速を用いたマイクロ・ナノ粒子高速流動加工の高性能化

    高奈秀匡, 厨川常元, 西山秀哉

    日本混相流学会年会講演会2007 2007/06/23

  164. MR流体のレオロジー特性と流動遮断性能

    西山秀哉, 高奈秀匡, 水木琴絵, 中嶋智樹, 片桐一成

    平成19年春季フルードパワーシステム講演会 2007/05/24

  165. Electrostatic Assist on a Cold Spray Process by Computational Simulation International-presentation

    Kazuhiro Ogawa, Tetsuo Shoji, Hideya Nishiyama

    International Thermal Spray Conference 2007/05/14

  166. 静電加速によるマイクロ・ナノ超音速ジェットの制御特性

    高奈秀匡, 小川和洋, 庄子哲雄, 西山秀哉

    平成18年度衝撃波シンポジウム 2007/03/15

  167. 小型ガス遮断器の安全性解析

    高奈秀匡

    第12回技術セミナー「ターボポンプとエネルギー変換技術」 2006/12/20

  168. MR流体の複雑流動構造を考慮した流量制御特性

    西山秀哉, 高奈秀匡, 片桐一成, 本澤政明, 澤田達男

    平成18年度磁性流体連合講演会 2006/12/07

  169. 静電加速によるコールドスプレープロセスの高性能化数値実験

    高奈秀匡, 小川和洋, 庄子哲雄, 西山秀哉

    2006年度溶射合同講演大会講演論文集 2006/11/27

  170. Computational Simulation on Acceleration of Micro/Nano Prticle in Supersonic Jet by Electrostatic Force International-presentation

    Hidemasa Takana, Kazuhiro Ogawa, Tetsuo Shoji, Hideya Nishiyama

    Third International Conference on Flow Dynamics 2006/11/07

  171. Reactive Air Plasma Flow by Pulsed DC Discharge for Combustion Assisst International-presentation

    Hirofumi Shimizu, Kenji Tsuri, Kazunari Katagiri, Hidemasa Takana, Yoshikatsu Nakano, Hideya Nishiyam

    Third International Conference on Flow Dynamics 2006/11/07

  172. Effect of Channel Diameter on Microdischarges in a Narrow Channel International-presentation

    L. Tong, S. Yonemura, H. Takana, H. Nishiyama

    Third International Conference on Flow Dynamics 2006/11/07

  173. コールドスプレープロセスの高性能化のための数値実験

    高奈秀匡, 小川和洋, 庄子哲雄, 西山秀哉

    日本機械学会流体工学部門講演会 2006/10/28

  174. 燃焼促進のためのパルス放電による空気プラズマ流の高機能化

    西山秀哉, 釣健士, 清水洋文, 片桐一成, 高奈秀匡, 仲野是克

    日本機械学会流体工学部門講演会 2006/10/28

  175. 圧力流れ場におけるMR流体の流動構造と流動制御特性

    西山秀哉, 高奈秀匡, 片桐一成, 本澤政明, 澤田達男

    日本機械学会流体工学部門講演会 2006/10/28

  176. Electrostatic Control of Micro-Nano Particle-Laden Supersonic Jet Impinging onto Substrate with Cavity in a Micro-space International-presentation

    Hidemasa Takana, Tsunemoto Kuriyagawa, Hideya Nishiyama

    6th International Symposium on Advanced Fluid Information 2006/10/26

  177. 磁場下におけるMR流体の流動構造と流動制御特性

    西山秀哉, 高奈秀匡, 片桐一成, 本澤政明, 澤田達男

    2006年度日本機械学会年次大会 2006/09/18

  178. 微小空間におけるマイクロ・ナノ粒子ジェットの制御

    高奈秀匡, 厨川常元, 西山秀哉

    日本混相流学会年会講演会2006 2006/08/04

  179. Optimization of In-flight Micro-Nano Particle Behaviors in a Cold Spray Process by Computational Simulation International-presentation

    Hidemasa Takana, Kazuhiro Ogawa, Tetsuo Shoji, Hideya Nishiyama

    8th Asia-Pacific Conference on Plasma Science and Technology and 19th Symposium on Plasma Science for Materials 2006/07/02

  180. Control Performance of Interactions between Reactive Plasma Jet and Substrate International-presentation

    6th International Conference on Reactive Plasmas and 23rd Symposium on Plasma Processing 2006/01/24

  181. 短時間冷却による小型ガス遮断器の耐電圧向上に関する数値解析

    内井敏之, 河野広道, 西山秀哉

    第19回数値流体力学シンポジウム 2005/12/13

  182. Transient Cooling Process in Compact Gas Circuit Breaker During Large Current Interruption International-presentation

    Hidemasa Takana, Toshiyuki Uchii, Hiromichi Kawano, Hideya Nishiyama

    5th International Symposium on Advanced Fluid Information 2005/12/08

  183. アーク溶接へのイオウ成分の影響

    2005年 放電学会 年次大会 2005/11/30

  184. Virtual Experiment on Transient Gas Cooling Process in Compact Gas Circuit Breaker

    Hidemasa Takana, Toshiyuki Uchii, Hiromichi Kawano, Hideya Nishiyama

    Second International Conference on Flow Dynamics 2005/11/16

  185. 固液共存層を考慮した統合モデルによるアーク溶融システムの最適化

    西山秀哉, 澤田知彦, 田中 学, 牛尾誠夫

    第160回溶接アーク物理研究委員会 2005/11/02

  186. 複雑干渉を伴うアーク溶融システムの仮想実験

    西山秀哉, 澤田知彦, 田中学, 牛尾誠夫

    日本鉄鋼協会第150回秋季講演大会 2005/09/28

  187. 2.統合モデルによるアーク溶融システムの仮想実験

    東京工業大学大学院総合理工学研究科創造エネルギー専攻 2005/09/27

  188. Computational Simulation on Arc Melting Process with Complex Interactions International-presentation

    Hideya Nishiyama, Tomohiko Sawada, Hidemasa Takana, Manabu Tanaka, Masao Ushio

    17th International Symposium on Plasma Chemistry 2005/08/07

  189. 現実強化モデルによる小型ガス遮断器の耐電圧向上解析

    内井敏之, 河野広道, 西山秀哉

    電気学会 放電・静止器・開閉保護合同研究会 2005/06/07

  190. Computational Experiment on Arc Melting Process with Complex Interactions

    Hideya Nishiyama, Tomohiko Sawada, Manabu Tanaka, Masao Ushio

    18th Symposium on Plasma Science for Materials 2005/06

  191. Control Performance of Reactive Plasma Jet Impinging onto the Substrate

    Hideya Nishiyama, Takehiko Sato, Shota Niikura, Genta Chiba

    18th Symposium on Plasma Science for Materials 2005/06

  192. 複雑干渉を伴う環境・材料プロセス用アーク溶融システムの仮想実験

    澤田 知彦, 田中 学, 高奈 秀匡, 牛尾 誠夫, 西山 秀哉

    日本機械学会東北支部 第40期講演会 2005/03/15

  193. 1.Numerical Simulation on Operating Characteristics of Nonequilibrium Plasma Direct Energy Conversion System International-presentation

    Department of Nuclear Engineering, Seoul National University 2005/02/25

  194. Numerical Simulation on Transient Responses of Plasma Direct Energy Conversion System International-presentation

    Hidemasa Takana, Yoshihiro Okuno, Hiroyuki Yamasaki

    First International Conference on Flow Dynamics 2004/11/11

  195. 数値シミュレーションによるクローズドループMHD発電装置の運転特性予測

    奥野喜裕, 山岬裕之

    日本機械学会東北支部 第40期秋季講演会 2004/09/16

  196. クローズドループ実験装置の亜音速発電運転シミュレーション

    奥野喜裕, 山岬裕之

    電気学会 新エネルギー・環境研究会 2004/09/09

  197. Numerical Simulation on Transient Characteristics of Closed Loop MHD Experimental Facility International-presentation

    Hidemasa Takana, Susumu Izumi, Yoshihiro Okuno, Hiroyuki Yamasaki

    35th AIAA Plasmadynamics and Laser conference 2004/06/18

  198. Transient Characteristics of Closed Loop MHD Experimental Facility

    Yoshihiro Okuno, Hiroyuki Yamasaki

    Symposium on Advanced Research of Energy Technology 2004/03

  199. クローズドループMHD発電実験装置の運転シミュレーション

    奥野喜裕, 山岬裕之

    電気学会 新エネルギー・環境研究会 2003/09/04

  200. Numerical Simulation of Fluid Flow in Closed Loop MHD Power Generation Facility International-presentation

    Hidemasa Takana, Yoshihiro Okuno, Hiroyuki Yamasaki

    34th AIAA Plasmadynamics and Laser conference 2003/06/23

  201. Numerical Study of Annular MHD Thruster

    Yuhei Eda, Yoshihiro Okuno

    Symposium on Advanced Research of Energy Technology 2003/02/26

  202. 遷音速領域を持つディスク形MHD発電機の電磁流体挙動

    江渕弘章, 奥野喜裕

    電気学会 新エネルギー・環境研究会 2002/09/12

  203. Numerical Simulation on Non-equilibrium Plasma Flow in an Annular Hall MHD Device International-presentation

    Hidemasa Takana, Yuhei Eda, Yoshihiro Okuno

    14th International Conference on MHD Power Generation and High Temperature Technologies 2002/05/20

  204. AnnularホールMHDデバイスにおける電磁エネルギー変換

    奥野喜裕

    宇宙輸送シンポジウム 2002/01/17

  205. 亜音速非平衡MHD発電機おける磁気音波の挙動

    名原啓博, 奥野喜裕, 山岬裕之

    日本機械学会 流体工学部門講演会 2001/10/02

  206. Behavior of Magneto-Acoustic Waves in Subsonic Nonequilibrium Plasma MHD Flow International-presentation

    Hidemasa Takana, Yoshihiro Okuno, Hiroyuki Yamasaki

    25th International Conference on Phenomena in Ionized Gases 2001/07/17

  207. Numerical Simulation on Behavior of Subsonic Non-equilibrium Plasma MHD Flow International-presentation

    Hidemasa Takana, Yoshihiro Okuno, Hiroyuki Yamasaki

    32nd AIAA Plasmadynamics and Laser conference 2001/06/11

  208. 亜音速非平衡ディスク形MHD発電機の過渡応答

    名原啓博, 奥野喜裕, 山岬裕之

    電気学会 新エネルギー・環境研究会 2000/09/13

  209. 亜音速ディスク形CCMHD発電機における過渡現象

    名原啓博, 奥野喜裕, 山岬裕之, 椛島成治

    平成12年電気学会全国大会 2000/03

Show all Show first 5

Industrial Property Rights 5

  1. ラジカル発生装置及びそれを用いた浄化方法

    西山秀哉, 長井亮介, 新沼啓, 高奈秀匡

    第5688651号

    Property Type: Patent

  2. 微粒子搬送装置及びこの装置を用いた微粒子の浄化方法

    高奈秀匡, 篠原圭介, 西山秀哉

    5688651

    Property Type: Patent

  3. 被覆用粉体の付着抑制方法,被覆用粉体の搬送方法,被覆用粉体搬送システム,及び被覆装置,被膜の形成方法

    高奈秀匡, 西山秀哉, 虻川志向, 高畠剛, 難波吉雄

    Property Type: Patent

  4. エンジン(内燃機関におけるプラズマ発生装置)

    堤崎高司, 石川友美, 岡部仁, 西山秀哉, 片桐一成, 髙奈秀匡, 仲野是克, 中嶋智樹

    第5117202号

    Property Type: Patent

  5. 酸性ガス分離装置及び酸性ガス分離方法

    高奈秀匡, 山本和輝, 原望, 金久保光央, 牧野貴至

    特許7143999

    Property Type: Patent

Research Projects 25

  1. Fabrication of Functional Composite Cellulose Fiber with Nano-Structural Control by Electric Field and Elongational Flow

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2022/04 - 2025/03

  2. 低環境負荷シードフリー高効率MHD発電の高性能化実証研究

    奥野 喜裕, 小林 宏充, 藤野 貴康, 高奈 秀匡

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 基盤研究(A)

    Category: 基盤研究(A)

    Institution: 東京工業大学

    2020/04 - 2025/03

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    本研究は,低環境負荷シードフリー高効率MHD発電の実用化を見据えた高性能化実証を推進し,その開発ロードマップを確固たるものにすることを目的としている。本研究課題での学術的問いは,既往研究では未到の 1) 予備電離(希ガスプラズマ生成)の高効率化 と 2) 発電機内プラズマの最適化 を実証・達成することである。令和3年度は,令和2年度(本研究課題初年度)での 1) 高周波予備電離手法の高度化の観点から,実験的に高周波誘導コイルのターン数や配置の発電性能に与える影響を明らかにしたこと,ならびに 2) 数値解析によるプラズマ安定化制御と性能評価の観点から,二次元非定常数値解析により発電機内プラズマの均一安定性について明らかにしたことを受けて,下記の2点に大きく焦点を絞って遂行し,本研究を一層推進した。 1) 予備電離希ガスプラズマMHD発電におけるプラズマ流体諸量の把握と高度化 ディスク形状発電機を用いた衝撃波管駆動MHD発電実験において,高速度ビデオカメラを使用して発電機内プラズマ流体挙動を観察し,高周波誘導コイルの配置が発電性能に与える影響を発電機内プラズマ流体諸量の変化と関連付けて明らかにした。また,新たな研究展開の前準備として,作動気体としてこれまで使用してきたアルゴンに加え,ネオンやネオンに微量のキセノンを添加したガス等を用いた実証試験を行い,その発電性能の基礎データを取得した。 2) 数値シミュレーションによる発電機内プラズマの挙動解析と性能評価 まず輻射を伴うプラズマ生成・消滅過程を考慮した二次元数値シミュレーションを行い,輻射損失が発電性能に与える影響を検討した。また,実験研究に呼応して,アルゴンに加え,ネオンやネオンに微量のキセノンを添加したガス等を用いた場合の発電性能を二次元数値シミュレーションにより明らかにした。

  3. Development of innovated cellulose single fiber fabrication by electrostatic alignment of nano fibrils in a micro channel

    Takana Hidemasa

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2019/04 - 2022/03

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    Cellulose nano-fibril (CNF) has been paid great attention as one of the most advanced nanosized biomass materials because of their impressive characteristics. The fabrication of materials such as filaments and films with high mechanical properties from CNF has a great potential as a promising environmental stable materials. Since the microscopic alignment of the fibrils within the cellulose filament has a strong effect on the mechanical properties of the material, highly aligned CNF is the key for the fabrication of strong cellulose filament made of CNFs. In this study, an innovative method of controlling CNF alignment has proposed by coupling an alternating electric field with conventional fluid dynamical alignment control. Through understanding the CNF alignment process by electric field, the tensile strength and toughness were increased by 63 % and 120 %, respectively by electric field assisted flow-focusing method.

  4. Development of advanced air purification system by coupling ionic liquid electrospray with reactive plasma

    Takana Hidemasa, Takemura Kenjiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2016/04 - 2019/03

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    This study aims the establishment of innovative environmental purification system by integrating the cutting edge technologies of ionic liquid electrospray and nano second pulsed discharge. Ultra-fine droplet generation process with Taylor cone formation followed by break up of liquid thread during ionic liquid electrospray was clarified by computational simulations. The ionic liquid generation system for CO2 absorption was developed. The fluid dynamical characteristics of electrospray was clarified through high speed imaging and droplet size distribution analysis by light scattering method. Furthermore, it was successfully demonstrated that the amount of CO2 absorption clearly increases by ionic liquid electrospray even under low CO2 concentration conditions.

  5. Enhancement of Interface Chemical Reaction in Bubble Jet and Control of Water Purification Process using Sun Light and Nano Pulsed Discharge

    NISHIYAMA Hideya, SOYAMA Hitoshi, YASUOKA Koichi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2014/04 - 2018/03

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    A nobel reactive plasma device for water purification was developed successfully by utilizing a single or two capillary discharges with sudden expansion diameter. It aims at the establishment of decomposition of persistand organic pollutants with high energy efficiency and control of water purification process. The correlation between discharge characteristics and generated bubble hehavior in the cappillaries, flow pattern, pump performance, and decolorization characteristics of methylene blue were experimentally clarified each other. The time dependent 2D diffusion model for oxidized radicals in the nano pulsed discharged bubble and treated solution outside bubble was successfully established. The optimum operating condition for high OH radical concentration in the solution was clarified by comparing with experimental data to obtain the high energy efficiency.

  6. Development of Innovative Air Purification Systems by Using Streamer Generated on the Magnetic Fluid Interface

    NISHIYAMA Hideya, TAKANA Hidemasa, UEHARA Satoshi, TANAKA Yasunori, SUDO Seiichi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2014/04 - 2016/03

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    The objective of this research is to develop the innovative air conditioner based on the technology establishment of droplets automization and ozone generation using kerosene based magnetic fluid and water based magnetic fluid respectively in the AC electric field, furthermore, droplets removal on a hydrophilic insulator with pulsed discharge. In low AC frequency the oscillation of magnetic fluid spike, ejections of small droplets and liquid thread from magnetic fluid spike are clarified. In high frequency ozone generation efficency is clarified as a function of frequency for air purification. Furthermore, droplets removal characteristics utilizing Joule heating evaporation on a hydrophilic insulator with pulsed discharge is also clarified by discharge visualization. Finally, the presence of OH radical generation was confirmed for decomposition of waste water droplets.

  7. Multiphysics Simulation on Reactive Flow Generated by Nano-Second Pulsed Discharge and Its Applications to Plasma Assisted Ignition

    TAKANA Hidemasa, NISHIYAMA Hideya

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2012/04 - 2015/03

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    In this study, detailed two dimensional computational simulations of nanosecond pulsed DBD (dielectric barrier discharge) or pin-to-pin discharge in a lean methane/air mixture were conducted at 10 atm and 600 K for plasma assisted ignition in an internal combustion engine. The fundamental characteristics of the nanosecond pulsed discharge and the radical production processes in the typical operating condition of internal combustion engines are clarified with understanding the partition of electron energy for radical production. Lastly, the effect of plasma produced radicals on enhancement of ignition delay has been clearly shown.

  8. Advanced Functionalization of Plasma Bubble Flow Systems by Microdischarge and Its Innovative Applications

    NISHIYAMA Hideya, TANAKA Yasunori, TAKANA Hidemasa, YASUOKA Koichi, TAKEUCHI Nozomi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2011/11/18 - 2014/03/31

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    OH and O radicals are successfully generated in the original and improved multiple bubble jet systems with pulsed discharge. Then water treatment characteristics such as decomposion of harmful persistent substances in solution were clarified experimentally. The dynamic behavior of bubble jet with discharge, streamer propagation at the bubble interface and radicals generation in the treated solution were investigated. The docomposition rate and energy efficiency of methylene blue and acetic acid were clarified for the applied voltage, duty ratio, frequency, gas flow rate and systems configuration for the optimized water treatment processes. Furthermore, the dynamic behavior model of bubble in a fine tube under DC discharge was proposed by visulalization analysis. Finally, plasma chemistry model was also established to clarify the radical generation process and radical life time in a bubble with high pressure and high temperature conditions.

  9. Development of Interface Reactive Purification Systems and Aerosol Transportation Using Human Friendly Discharge

    NISHIYAMA Hideya, TAKANA Hidemasa, TANAKA Yasunori

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2012/04 - 2014/03

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    The novel DBD plasma tube was originally developed for water treatment. The ozone eneration rate, the conversion rate of methylene blue mist and its energy efficiency were clarified for operating conditions such as applied voltage, frequency, flow rate and tube length. Furthermore, the water treatment method spraying acetic acid solution into the coaxial cylinder DBD tube was investigated in detail. The power consumption, generated radicals, decomposition process and high decomposition rate were clarified. Finally, the novel numerical method using plasma-gas-doroplet three phase reactive model was proposed based on water treatment experiment. There were good agreement of dissolved species into the droplet between numerical simulation and experiment.

  10. Map Formation for Cold Spray Conditions Based on Particle Kinetic and Rebound Energies

    OGAWA Kazuhiro, TAKANA Hidemasa

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2011/04 - 2014/03

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    The cold spray (CS) technique, which can make coatings using solid state metallic fine particles, has many advantages. But, an issue is that the CS technique has not made clear the adhesion mechanism of particles. In the case of approach using CS equipment, it was very difficult to understand the particle adhesion mechanism, because particle diameter has wide variation and uneven-shaped countless particles almost simultaneously impinge on a substrate material. In this study, a cold spray simulated single particle shot system was developed. This system can shoot and make deposition using one spherical particle with fixed shape and diameter. And at the same time, it is possible to accurately evaluate the particle velocity by two laser systems. Using this system, the particle adhesion phenomenon and mechanism on the combination of various materials was evaluated in detail, and a map for cold spray conditions based on particle kinetic and rebound energies was made.

  11. 非平衡プラズマによる着火促進 Competitive

    System: Cooperative Research

    2010/04 - 2012/03

  12. Development of Collection of Polluted Nano Suspensions and Surface Cleaning System Using Discharge Adjustable for Living Body

    NISHIYAMA Hideya, TAKANA Hidemasa, TANAKA Yasunori

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Exploratory Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2010 - 2011

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    he innovative technology is proposed for nano particle mixing and transportation in a plasma tube using electrostatic force coupled with induced flow by dielectric barrier discharge on the inner surface of a tube. This DBD plasma tube is composed of a pair of spiral electrodes both inside and outside of the tube for the generation of DBD plasma. The fundamental characteristics of DBD plasma tube such as discharge characteristics and induced flow velocity were clarified experimentally. Furthermore, three dimensional electrical potential distribution as well as particle trajectory inside the tube were shown by computational simulation. Furthermore, mist of methylene blue was introduced to plasma tube and it was successfully decomposed by ozone in a plasma tube.

  13. Development of micro-particulate flow control by electrostatic mixing and its application to environment and energy technology

    TAKANA Hidemasa

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)

    Category: Grant-in-Aid for Young Scientists (B)

    Institution: Tohoku University

    2010 - 2011

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    The innovative powder transportation technology in a plasma tube has been proposed from this study for the advanced micro-nano supersonic powder jet process or purification of particulate matter. The proposed powder transportation tube, hereafter referred to as"plasma tube", is composed of a pair of spiral electrodes both inside and outside of the tube for the generation of dielectric barrier discharge (DBD)on the inner tube wall. Particles are mixed and transported by electrostatic force acting on the charged particles and induced internal flow by DBD. It was clarified from both numerical and experimental studies that particles are efficiently transported by plasma induced flow with enhanced mixing by electrostatic force directly acting on particles. The fundamental characteristics and the optimum condition for powder transportation have been obtained for the practical application of the proposed plasma tube.

  14. 気泡プラズマ流と磁気粘性流体の融合による超機能性流体システムの先進的応用展開

    西山 秀哉, 高奈 秀匡

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 挑戦的萌芽研究

    Category: 挑戦的萌芽研究

    Institution: 東北大学

    2008 - 2009

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    誘電体バリア放電による反応性に富む多くのラジカルを含んだ「マイクロバブルラジカルジェット」と磁場印加によるスパイク形成を活用し、流動場制御が可能な「磁気粘性スパオク」を統合した「バブルプラズマー磁気粘性スパイク」システムを構築するために、個々のサブシステムを独立に構成し、消費電力、印加電磁場の作動条件や気泡径、界面条件下での基本的特性を実験的に明らかにした。得られた結果を要約すると以下になる。 (1)誘電体バリア放電による空気高活性化部と加圧型マイクロバブル発生部から構成される高活性空気内包マイクロバブルジェットシステムを構築した。酸性溶液では、オゾン、過酸化水素水、活性酸素の溶解量は多いが、アルカリ性溶液では、過多に存在するOHイオンによりオゾンの自己分解が促進され、オゾンの溶解量は少ない。また、短波長から長波長の紫外線と真空紫外線をオゾンマイクロバブルに照射することにより、中性溶液の場合、気泡内や溶液中にOHラジカル等が生成され、メチレンブルーの脱色効果は非照射時に比べ顕著であるが、アルカリ溶液の場合は小さい。 (2)内径数ミリ程度の管あるいは小孔から発生する空気およびアルゴンバブルジェットをタングステン棒陰極と溶液底部に設置された銅陽極から構成された放電部に導入し、高電圧マイクロパルスを印加することにより、液中でのバブルプラズマジェットの生成に成功した。液中発光からは、酸素ラジカルやOHラジカルが同定され、酸素バブルプラズマジェットのメチレンブルーの投入電力あたりの脱色性能がアルゴンや空気バブルプラズマジェットより優れている。 (3)磁場下にあるスパイク状の磁性流体界面を誘電体とし、誘電体バリア放電の試験を行った。電極間ギャップが数ミリで電極と磁性スパイクの先端にストリーマを生じ、静電気力やイオン風により磁性スパイクも変形および移動した。

  15. Optimization of advanced micro/nano particulate complex flow processby multi-scale analysis

    TAKANA Hidemasa

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B)

    Category: Grant-in-Aid for Young Scientists (B)

    Institution: Tohoku University

    2008 - 2009

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    In this study, the integrated model of particulate supersonic flow and coating formation for cold gas dynamic spray process is established. It was shown that electrostatic particle acceleration enhances the coating performance even under the presence of shockwave. Furthermore, the optimum cavity configuration was obtained by clarifying the influence of cavity configuration on coating formation. The fundamental data was obtained from this study for the advanced applications of cold as dynamic spray process.

  16. 傾斜スケール磁気粒子流体の生体適合化による先進医工学への新展開

    西山 秀哉, 山家 智之, 西條 芳文, 高奈 秀匡

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 萌芽研究

    Category: 萌芽研究

    Institution: 東北大学

    2006 - 2007

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    工業用バルブや医療用シール等のMR流体流動システム設計のための基礎資料を提供することを目的として、磁場下にある最新の商用MR流体の詳細なレオロジー特性とオリジナルな可視化実験、圧力流れ場における矩形流路内流動構造の経時変化の実験解析、さらには、矩形流路内流量遮断特性から磁気機能性および流動制御特性を明らかにした。その結果、以下の結論を得た。 1.MR流体の流動曲線や降伏応力の再現性を確認するために、回転粘度計のMR流体試料と接触する回転スピンドルの頂角、円板ギャップ表面粗さによるレオロジー特性への影響を詳細に明らかにした。静的な降伏応力はずり速度が小さい場合、表面粗さがあると滑面に比して大きく、強磁場下でせん断力は平板ギャップが大きいと増加する。これは、棒状クラスター端面と回転スピンドル表面との摩擦力やすべりが影響していると考えられる。 2.圧力流れ場における流路内MR流体シールを破壊するためのピストン移動速度を0.5〜5mm/sに大きく変化させるために、平成18年度に製作したMRシールシステムを試作改良した。 3.磁場下でピストン駆動速度を変化させた場合のMR流体流路の最上流部、シール下端部の圧力の経時変化により、シール形成による流動遮断、シール崩壊および流動、さらには、シール再形成のシナリオをリアルタイムで明らかにした。いずれのピストン駆動速度においても、印加磁場強度の増加と共にシール耐圧が増加し、その増加率は印加磁場強度の二乗にほぼ比例する。また、ピストン駆動速度の増加に対しても、シール耐圧は著しく増加する。これは、ピストン駆動速度の増加に伴い、磁場作用近傍のシール上流部で強磁性微粒子密度が局所的に増加することにより、より強固なクラスターが形成されたためと考えられる。

  17. ナノ粒子流動プロセスのマルチスケール・マルチフィジックス統合解析

    高奈 秀匡

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 若手研究(B)

    Category: 若手研究(B)

    Institution: 東北大学

    2006 - 2007

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    本研究は,ナノ・マイクロ粒子混相流のフロンティア領域創成を目指して,新たなナノ・マイクロ粒子流動モデルを実験結果と統合解析することにより構築し,超音速ジェット中におけるナノ粒子の複雑流動,粒子と基板との衝突・複雑干渉及び皮膜形成過程を詳細に解明することにより,ナノ・マイクロ粒子流動が要となるナノ・マイクロ粒子超音速ジェット加工(コールドスプレー),さらにはその歯科医療への応用展開,ナノ粒子創製プロセス等に幅広く貢献することを目的として行ったものである。 最終年度である平成19年度には,高速気流と粒子との運動量交換による従来の粒子加速法に加え,コロナ放電により粒子を積極的に帯電させ,粒子を静電気力により加速する方法に着目し,静電気力を活用したナノ・マイクロ粒子超音速ジェット加工を対象として,固気混相流モデルおよび粒子のスプラット形成モデル,さらにはスプラット積層による皮膜形成モデルを統合したマルチスケール・マルチフィジックス統合解析を行うことに成功した。これにより,粒子注入から皮膜創成までの全プロセスを再現し,システム全体の性能評価を行うとともに,高性能化および最先端歯科医療への応用展開のための基礎資料を提供した。さらに,従来の方法では,衝撃波発生下において急激な減速作用を受けるために使用することができなかった数100ナノオーダー以下の粒子に対して,静電加速がより効果的に作用し,その結果付着効率が大きく向上することを明らかにした。得られた成果は,日本機械学会第85期流体工学部門講演会,日本混相流学会年会講演会等の国内学会やInternational Thermal Spray Conference, 5th Joint ASME/JSME Fluid Engineering Conferenceにおいて発表された。日本混相流学会年会講演会で発表された本研究成果は,年会講演会論文審査委員会で優秀と認知され,混相流研究の進展2(論文精選集)に招待論文として掲載され,今後の混相流研究および微粒子流動加工技術発展に大きく貢献した。また,国内の溶射メーカーから共同研究のための可能性研究の申し出があった。最終年度に得られた研究成果を論文にまとめ,Powder TechnologyおよびASME Journal of Fluid Engineeringに投稿した結果,掲載可の判定を得ており,現在印刷中である。

  18. Optimum Control of Plasma Flow Systems through Multi-Scale Integration

    NISHIYAMA Hideya, HAYASE Toshiyuki, SATO Takehiko, TOKUMASU Takashi, TAKANA Hidemasa

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2005 - 2007

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    In the present study, the plasma flow systems with multi-scale interactions are analyzed by using multi-scale control method and multi-scale integration to give the fundamental data for cold spray, plasma assist combustion, arc melting process and gas circuit breaker. The obtained results are as follows. 1. An integrated model for advanced cold spray process is constructed by integrating nano-micro particle flow model and coating formation model. It is clarified that electrostatic acceleration of nano-particle is effective in the presence of shock wave. The deposition process in the cavity is also clarified by comparing with cold spray experiment. 2. The pulsed arc torch and dielectric barrier discharge torch with small input power are developed to produce oxygen and nitrogen radicals and ozone for combustion assist. The effects of applied voltage and frequency on radical concentrations are clarified experimentally. Time evolution of chemical species in an air plasma are also clarified numerically using complex reaction model 3. Real time simulations are conducted for purpose of compactness of gas circuit breaker (GCB) and optimization of arc melting process. It is clarified that rough structure in the exhaust tube enhances the rapid cooling of exhaust hot gas for compact GCB. It is shown that the temperature dependent surface tension and mushy zone effect the melting pool structure in an arc-melting systems.

  19. Numerical simulation on optimization of water-stabilized arc for biomass gasification

    Jiri Jenista

    Offer Organization: Institute of Fluid Science, Tohoku University

    System: Collaborative Research Project

    Institution: Institute of plasma physics, Czech Academy of Science

    2006/04 -

  20. Optimization of micro-nano particulate flow under a plasma environment Competitive

    System: The Other Research Programs

    2006/03 -

  21. Research and development of plasma torch for combustion enhancement Competitive

    System: Cooperative Research

    2005/09 -

  22. Micro flow control by utilizing magnetorheological fluid Competitive

    System: The Other Research Programs

    2005/06 -

  23. Numerical simulation on capability improvement of world smallest gas circuit breaker Competitive

    System: Cooperative Research

    2004/04 - 2005/03

  24. 磁気ナノ構造流体の多機能性を利用した先進医療および福祉工学への展開

    西山 秀哉, 佐藤 岳彦, 高奈 英匡

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 萌芽研究

    Institution: 東北大学

    2003 - 2004

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    本研究では、強磁場下では半固体、また、弱磁場下では流動特性を有する安定な磁気粘性流体について、密閉容器内での磁場下における音速特性および矩形断面流路内でのMR流体流動特性を実験的に明らかにした。得られた結果を要約すると、以下のようになる。 1.密閉容器内の水ベース磁性流体、ケロシンベース磁性流体およびMR流体について、超音波伝播特性により磁場強度による音速変化割合や異方性および磁場増減による音速のヒステリシスを実験的に詳細に明らかにした。特にMR流体では、磁場の増加によるクラスター形成で半固体化することにより、磁性流体に比べ、音速変化が著しく顕著になることが明らかになり、音速と磁性粒子の局所濃度や体積弾性率との相関性が示された。 2.磁場下のMR流体中での振動平板荷重試験による粘弾性特性実験により、バネ係数は小振幅で、磁場に対しほぼ直線的に増加する。また、医療用流動バルブの基礎研究として、矩形断面流路内にある磁場下のMR流体流動実験により、1,000Gauss程度の磁場強度で流量が遮断され、圧力分布が急激に変化した。

  25. Multi-dimensional Nano Control of Plasma Flow Systems by Using Fusion

    NISHIYAMA Hideya, HAYASE Toshiyuki, SATO Takehiko, TAKANA Hidemasa

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: TOHOKU UNIVERSITY

    2003 - 2004

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    ‘Plasma Flow Integrated System' is successfully constructed by combining plasma flow with micor/nano particles, radicals and interface with complex interactions and further by integrating with senser and controller. The results obtained in the present study are as follows. (1)The effects of inlet flow rate ratios, swirling flow, gas injection location on needed input power for stable plasma generation and injected reactant gas flow rate are clarified for DC-RF hybrid plasma flow system. Furthermore, the effect of operating pressure on the in-flight characteristics and flow structure is clarified to provide the important element for multi-dimensional control. (2)Based on the statistically optimized DC-RF hybrid plasma flow system for photo-catalytic nano particle synthesis, particle size distribution and crystal structure can be controlled by inlet gas flow rate ratio and quench gas flow rate. (3)Multi-dimensional intelligent control system is developed to stabilize the argon/nitrogen plasma jet impinging onto the substrate for nitridation. Constant control of radiation intensity near substrate and suppression of plasma jet fluctuation are realized by operating back pressure and applied magnetic field. (4)The effects of seeding, applied frequency and trubulent characteristics on phase change and diameter decrease of micro particles are numerically clarified to control particle treatment by ICP with seeding potassium vapor. (5)The effects of quench gas flow rate, applied frequency and DC jet addition on nano particle size distribution for ICP are numerically clarified by realistic nano-particle synthesis model.

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Social Activities 6

  1. みやぎ県民大学「学校等開放講座」

    2021/09/17 - 2021/09/17

  2. 済州大学特別講義

    2017/04/25 - 2017/04/25

  3. 秋田県立大学システム科学技術学部「機械知能システム学特別講義」

    2013/10/11 -

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    プラズマの基礎と先進応用

  4. みやぎ県民大学「学校等開放講座」

    2012/08/24 -

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    プラズマのながれ

  5. オハイオ州立大学機械航空工学科特別講演

    2012/02/21 -

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    Characterization of Reactive Species Production by Air-Methane Dielectric Barrier Discharge at High Pressure and High Temperature Conditions

  6. みやぎ県民大学「学校等開放講座」

    2010/09/17 -

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    プラズマのながれ

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Media Coverage 7

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    日経XTECH 日経XTECH

    2020/10/13

    Type: Internet

  2. 東北大、セルロースナノファイバーを原料としたセルロース単繊維の高強度・高靭化に成功

    日本経済新聞 日本経済新聞電子版

    2020/10/05

    Type: Internet

  3. 夢の新素材セルロースナノファイバーを原料とした革新的セルロース単繊維創製法を開発 ―電場と流れ場による繊維配向制御で高強度化に成功― Myself

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    2020/10/05

    Type: Internet

  4. 汚水の有機物質分解,畜産・水産向け 微細気泡に放電

    日経産業新聞, 10頁

    2011/08/09

    Type: Newspaper, magazine

  5. 東北大、液中のアルゴンガスに放電し難溶解性物質を効率分解

    日刊工業新聞

    2011/08/01

    Type: Newspaper, magazine

  6. オゾンで燃焼効率化

    日刊工業新聞

    2009/09/10

    Type: Newspaper, magazine

  7. 冷却時間短縮スパコンで確認

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  1. 超低損失ナノ結晶薄帯製造装置に関する熱流体シミュレーション技術の開発

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  2. 非平衡および高温プラズマ放電/燃焼モデルの研究

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    非平衡および高温プラズマ放電/燃焼モデルの研究

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    非平衡プラズマによる放電/燃焼モデルの研究

  4. プラズマ溶射条件の最適化シミュレーションプログラムの開発

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  5. ナノ繊維静電配向制御による高機能セルロース新素材プロセス技術の確立

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  6. 自動車塗装設備の省エネ技術に関する研究

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  7. 静電気力による液滴輸送・制御技術

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    静電気力による液滴輸送・制御技術

  8. プラズマ燃焼促進のためのプラズマ化学反応モデルの構築

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  9. 水質浄化用放電型高活性多点バブルジェットシステムの開発

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  10. 着火用非平衡プラズマジェットの基礎研究

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  11. Integrated Analysis by Kinetic Model and Fluid Model for Innovative Plasma Applications

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    A kinetic-fluid coupled model is developed for revealing the complex physical-chemical processes in an atmospheric pressure glow discharge (APGD) plasma source, and verified by comparisons with the experiments.

  12. Experimental Analysis on Impacting Process of Molten Micro Droplet with Solidification

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    本共同研究では,微小粗さを有する基板に溶融液滴が凝固を伴って衝突する際の衝突過程ならびに衝突時の液滴挙動を実験的に解明することを目的とする。特に,本研究では,液滴の慣性力や基板表面粗さなどが溶融液滴の凝固過程に与える影響をミクロな立場から明らかにし,溶射プロセスによる皮膜性能向上のための基礎資料を提供する。

  13. Real-time Numerical Simulation of Reactive Non-equilibrium

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    本研究では,DBD放電,パルス変調型DBD放電等により生成される反応性非平衡プラズマジェットに対し,精緻な数値モデルを構築し,実験結果と比較・検討することにより,モデル精度を向上させる。また,流体研のスパコンを活用して実時間数値解析を行うことにより,その詳細な反応過程を明らかにするとともに,生成される高活性化学種を実時間で定量的に評価する。さらに,本数値計算から最適作動条件を示すことにより,反応性非平衡プラズマジェットの燃焼促進や環境浄化応用のための基礎資料を提供することを目的とする。

  14. 数値シミューションによるバイオマスガス化用水安定化アークの最適化

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    チェコプラズマ物理研究所で開発されたバイオマスガス化用水安定化アークを対象とし,圧縮性乱流を考慮した数値計算を行い,大電流域における亜音速から超音速への遷移現象をとらえることに成功するとともに,エネルギー変換の観点から最適作動条件を示した。

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    微粒子を融点よりも低い超音速流中に注入し,高速で粒子を基板に衝突させることにより,粒子が付着して皮膜を形成する「コールドスプレープロセス」に対して,熱流動場および飛行粒子の挙動,皮膜形成過程を統合的に解析した。詳細な数値実験により,付着効率向上のための重要因子を抽出し,最適化を行う。

  16. 微小空間における微粒子高速ジェット加工の数値実験

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    1mm程度の微小空間における超音速流動加工に対し,数値実験を行い,基板近傍に発生する衝撃波と飛行粒子との複雑干渉を解明し,衝突速度に対する最適粒径を明らかにする。

  17. 先進歯科治療用パウダージェットディポジション法の最適化

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    先進歯科治療用パウダージェットディポジション法の最適化

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