東北大学研究者紹介 - Somarathne Kapuruge Don Kunkuma Amila

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ソマラテナ　カプルゲ　ドン　クンクマ　アミラ

Somarathne Kapuruge Don Kunkuma Amila

所属

流体科学研究所　附属統合流動科学国際研究教育センター　高速反応流研究分野

職名

特任准教授（研究）

学位

博士（工学）（豊橋技術科学大学）
修士（工学）（豊橋技術科学大学）
修士（工学）（豊橋技術科学大学）

researchmap

https://researchmap.jp/kunkumaS

J-GLOBAL ID

202201017703372326

e-Rad 研究者番号

91014695

ORCID

https://orcid.org/0000-0002-2226-925X

経歴 2

2024年9月～継続中

東北大学　流体科学研究所　特任准教授
2014年4月～ 2024年9月

東北大学　流体科学研究所

学歴 5

豊橋技術科学大学

2011年4月～ 2014年3月
豊橋技術科学大学

2009年4月～ 2011年3月
豊橋技術科学大学

2008年4月～ 2009年3月
University of Moratuwa (Sri Lanka)　Chemical and Process Engineering　Chemical and Process Engineering

1998年10月～ 2003年8月
Ananda College（Sri Lanka)　Physical Science Division　Pure Mathematics, Applied Mathematics, Physics and Chemistry

1995年7月～ 1998年7月

委員歴 2

5th Ammonia Energy Symposium Chile, 2026　Scientific Committee Member

2025年11月～ 2026年10月
4th Ammonia Energy Symposium, Minnesota, USA, 2025　Scientific Committee Member

2024年10月～ 2025年10月

研究キーワード 5

High pressure Combustion
Liquid Ammonia Spray combustion
Fuel NOx emission reduction
Turbulent combustion Modelling
Ammonia Combustion

研究分野 1

ものづくり技術（機械・電気電子・化学工学） / 熱工学 /

受賞 3

The Young Investigator Award of The 14th Asia-Pacific Conference on Combustion, Kaohsiung, Taiwan (2023)

2025年5月　Asia-Pacific Conference on Combustion
日本燃焼学論文賞

2019年11月　日本燃焼学会
日本機械学会熱工学部門講演論文表彰

2018年9月　日本機械学会

論文 24

Spray and Combustion Characteristics of Liquid Ammonia Using Pressure-swirl, Single-hole, and Three-hole Nozzles in a Swirling Burner 査読有り

Yi-Rong Chen, K.D.Kunkuma A. Somarathne, Gauthier Reibel, Akihiro Hayakawa, Taku Kudo, Hideaki Kobayashi

Combustion and Flame　291　115088-115088　2026年9月
出版者・発行元： Elsevier BV
DOI： 10.1016/j.combustflame.2026.115088 　

ISSN：0010-2180
Effects of wall heat loss on emission characteristics of liquid ammonia spray combustion using a swirling burner 査読有り

Yi-Rong Chen, Gauthier Reibel, Kohei Oku, Hirofumi Yamashita, Akihiro Hayakawa, Taku Kudo, Hisayoshi Ito, K. D. Kunkuma A. Somarathne, Hideaki Kobayashi

Applications in Energy and Combustion Science　23　100370-100370　2025年9月
出版者・発行元： Elsevier BV
DOI： 10.1016/j.jaecs.2025.100370 　

ISSN：2666-352X
Visualization of Liquid Ammonia Spray Using 2p-SLIPI and Comparison of Liquid Ammonia Spray and Gaseous Ammonia Combustion in a Swirl Combustor at Atmospheric Pressure 査読有り

Hirofumi Yamashita, Akihiro Hayakawa, Kohei Oku, Sophie Colson, Gauthier Reibel, Yi-rong Chen, K. D. Kunkuma A. Somarathne, Ekenechukwu C. Okafor, Taku Tsujimura, Shintaro Ito, Masahiro Uchida, Taku Kudo, Hideaki Kobayashi

Fuel　371　131833　2024年9月

DOI： 10.1016/j.fuel.2024.131833 　

ISSN：0016-2361
Optimum primary equivalence ratio for rich-lean two-stage combustion of non-premixed ammonia/methane/air and ammonia/hydrogen/air flames in a swirling flow

Hirofumi Yamashita, Akihiro Hayakawa, Ekenechukwu C. Okafor, Sophie Colson, K. D. Kunkuma A. Somarathne, Taku Tsujimura, Shintaro Ito, Masahiro Uchida, Taku Kudo, Hideaki Kobayashi

Fuel　368　131598-131598　2024年7月
出版者・発行元： Elsevier BV
DOI： 10.1016/j.fuel.2024.131598 　

ISSN：0016-2361
ガスタービン様燃焼器における液体アンモニア/空気噴霧燃焼の開発に向けた数値研究

SOMARATHNE Kapuruge Don Kunkuma Amila, YAMASHITA Hirofumi, COLSON Sophie, HAYAKAWA Akihiro, KOBAYASHI Hideaki

燃焼シンポジウム講演論文集(CD-ROM)　16　100215-100215　2023年12月
出版者・発行元：
DOI： 10.1016/j.jaecs.2023.100215 　

ISSN：2666-352X
Study on the effect of injection temperature and nozzle geometry on the flashing transition of liquid ammonia spray

Sophie Colson, Hirofumi Yamashita, Kohei Oku, Kapuruge Don Kunkuma Amila Somarathne, Taku Kudo, Akihiro Hayakawa, Hideaki Kobayashi

Fuel　348　128612-128612　2023年9月
出版者・発行元： Elsevier BV
DOI： 10.1016/j.fuel.2023.128612 　

ISSN：0016-2361
Towards the development of liquid ammonia/air spray combustion in a Gas turbine-like combustor 査読有り

K. D. Kunkuma, A. Somarathne, Hirofumi Yamashita, Sophie Colson, Akihiro Hayakawa, Taku Kudo, Hideaki Kobayashi

The 14th Asia-Pacific Conference on Combustion (ASPACC), Kaohsiung, Taiwan (2023), Paper No. 184.　2023年5月
Liquid Ammonia Spray Combustion and Emission Characteristics with Gaseous Hydrogen/air Co-firing 査読有り

Kapuruge Don, Kunkuma Amila Somarathne, Hirofumi Yamashita, Sophie Colson, H Kobayashi

Conference: Asia-Pacific Conference on Combustion (ASPACC) 2021At: UAE　2021年12月
Flame stability and emissions characteristics of liquid ammonia spray co-fired with methane in a single stage swirl combustor

Ekenechukwu C. Okafor, Hirofumi Yamashita, Akihiro Hayakawa, K. D.Kunkuma A. Somarathne, Taku Kudo, Taku Tsujimura, Masahiro Uchida, Shintaro Ito, Hideaki Kobayashi

Fuel　287　2021年3月1日

DOI： 10.1016/j.fuel.2020.119433 　

ISSN：0016-2361
Influence of wall heat loss on the emission characteristics of premixed ammonia-air swirling flames interacting with the combustor wall

Ekenechukwu C. Okafor, Masaaki Tsukamoto, Akihiro Hayakawa, Kunkuma A. Somarathne, Taku Kudo, Taku Tsujimura, Hideaki Kobayashi

Proceedings of the Combustion Institute　38　(4)　5139-5146　2021年

DOI： 10.1016/j.proci.2020.06.142 　

ISSN：1540-7489
高圧での二段ガスタービン様燃焼器における乱流非予混合CH_4/NH_3/空気火炎のNO放出特性に及ぼすOH濃度と温度の影響【JST・京大機械翻訳】

Somarathne Kapuruge Don Kunkuma Amila, Okafor Ekenechukwu C., Sugawara Daiki, Sugawara Daiki, Hayakawa Akihiro, Kobayashi Hideaki

Proceedings of the Combustion Institute　38　(4)　5163-5170　2021年

DOI： 10.1016/j.proci.2020.06.276 　

ISSN：1540-7489

eISSN：1873-2704
Control of NOx and other emissions in micro gas turbine combustors fuelled with mixtures of methane and ammonia

Ekenechukwu C. Okafor, K. D. Kunkuma A. Somarathne, Rattanasupapornsak Ratthanan, Akihiro Hayakawa, Taku Kudo, Osamu Kurata, Norihiko Iki, Taku Tsujimura, Hirohide Furutani, Hideaki Kobayashi

Combustion and Flame　211　406-416　2020年1月

DOI： 10.1016/j.combustflame.2019.10.012 　

ISSN：0010-2180

eISSN：1556-2921
高圧における種々の壁面熱境界条件下のリッチ希薄燃焼器による乱流非予混合アンモニア/空気及びメタン/空気旋回火炎の排出特性【JST・京大機械翻訳】

Somarathne Kapuruge Don Kunkuma Amila, C. Okafor Ekenechukwu, Hayakawa Akihiro, Kudo Taku, Kurata Osamu, Iki Norihiko, Kobayashi Hideaki

Combustion and Flame　210　247-261　2019年12月

DOI： 10.1016/j.combustflame.2019.08.037 　

ISSN：0010-2180

eISSN：1556-2921
Emission characteristics of turbulent non-premixed CH_4/NH_3/air swirl flames through a rich-lean gas turbine-like combustor at high pressure.

K. D. Kunkuma, A. Somarathne, Ekenechukwu C. Okafor, Akihiro Hayakawa, Taku Kudo, Hideaki Kobayashi

The 12th Asia-Pacific Conference on Combustion (ASPACC), Fukuoka, Japan (2019), Paper No. 1189.　2019年7月
Towards the development of an efficient low-NOx ammonia combustor for a micro gas turbine

Ekenechukwu C. Okafor, K. D.Kunkuma A. Somarathne, Akihiro Hayakawa, Taku Kudo, Osamu Kurata, Norihiko Iki, Hideaki Kobayashi

Proceedings of the Combustion Institute　37　(4)　4597-4606　2019年

DOI： 10.1016/j.proci.2018.07.083 　

ISSN：1540-7489
Science and technology of ammonia combustion

Hideaki Kobayashi, Akihiro Hayakawa, K. D.Kunkuma A. Somarathne, Ekenechukwu C. Okafor

Proceedings of the Combustion Institute　37　(1)　109-133　2019年

DOI： 10.1016/j.proci.2018.09.029 　

ISSN：1540-7489
On the control of NOx emission from a micro gas turbine combustor fueled with mixtures of methane and ammonia

Ekenechukwu C. Okafor, Rattanasupapornsak Ratthanan, K. A.D. Kunkuma Somarathne, Akihiro Hayakawa, Taku Kudo, Osamu Kurata, Norihiko Iki, Taku Tsujimura, Hideaki Kobayashi

12th Asia-Pacific Conference on Combustion, ASPACC 2019　2019年
Modelling of ammonia/air non-premixed turbulent swirling flames in a gas turbine-like combustor at various pressures

Kapuruge Don Kunkuma Amila Somarathne, Sophie Colson, Akihiro Hayakawa, Hideaki Kobayashi

Combustion Theory and Modelling　22　(5)　973-997　2018年9月3日

DOI： 10.1080/13647830.2018.1468035 　

ISSN：1364-7830

eISSN：1741-3559
高圧での二次空気注入を伴う乱流アンモニア/空気予混合旋回火炎の低エミッションガスタービン様燃焼器の数値的研究【Powered by NICT】

Somarathne Kapuruge Don Kunkuma Amila, Hatakeyama Sotaro, Hayakawa Akihiro, Kobayashi Hideaki

International Journal of Hydrogen Energy　42　(44)　27388-27399　2017年11月2日

DOI： 10.1016/j.ijhydene.2017.09.089 　

ISSN：0360-3199

eISSN：1879-3487
Experimental investigation of stabilization and emission characteristics of ammonia/air premixed flames in a swirl combustor

Akihiro Hayakawa, Yoshiyuki Arakawa, Rentaro Mimoto, K. D.Kunkuma A. Somarathne, Taku Kudo, Hideaki Kobayashi

International Journal of Hydrogen Energy　42　(19)　14010-14018　2017年5月11日

DOI： 10.1016/j.ijhydene.2017.01.046 　

ISSN：0360-3199
旋回流バーナーにより安定化したアンモニア/空気乱流予混合火炎の燃焼特性に関する数値研究

SOMARATHNE Kapuruge Don Kunkuma Amila, HAYAKAWA Akihiro, KOBAYASHI Hideaki

Journal of Fluid Science and Technology (Web)　11　(4)　JFST0026-JFST0026　2016年

DOI： 10.1299/jfst.2016jfst0026 　

ISSN：1880-5558

eISSN：1880-5558
Stabilization and emission characteristics of ammonia/air premixed flames in swirling flows

A. Hayakawa, Y. Arakawa, R. Mimoto, K. D.K.A. Somarathne, T. Kudo, H. Kobayashi

WHEC 2016 - 21st World Hydrogen Energy Conference 2016, Proceedings　626-627　2016年
Laminar burning velocity and Markstein length of ammonia/hydrogen/air premixed flames at elevated pressures

Akinori Ichikawa, Akihiro Hayakawa, Yuichi Kitagawa, K. D. Kunkuma Amila Somarathne, Taku Kudo, Hideaki Kobayashi

International Journal of Hydrogen Energy　40　(30)　9570-9578　2015年8月10日

DOI： 10.1016/j.ijhydene.2015.04.024 　

ISSN：0360-3199
Numerical study of NOx reduction of turbulent non-premixed flames by combination of burner and furnace

K. D.K.A. Somarathne, S. Noda

Proceedings of the 9th Asia-Pacific Conference on Combustion, ASPACC 2013　2013年

︎全件表示 ︎最初の5件までを表示

MISC 26

Numerical investigation of liquid ammonia spray flame characteristics using a single hole nozzle in a swirling burner under various thermal wall conditions

K. D. Kunkuma, A. Somarathne, Hirofumi Yamashita, Yi R. Chen, Reibel Gauthoer, Hisayoshi Ito, Taku Kudo, Akihiro Hayakawa, Hideaki Kobayashi

The 11th JSME-KSME Thermal and Fluid Engineering Conference (TFEC11), Okinawa, Japan (2025), Paper No. JK-TFEC11-1117.　2025年10月
Stabilization of liquid ammonia flashing spray flames using a single-hole injector for thermal application.

K. D. Kunkuma, A. Somarathne, Y. R. Chen, Hisayoshi Ito, Taku Kudo, Akihiro Hayakawa, Hideaki Kobayashi

The 4th Symposium on Ammonia Energy (SoAE), Minneapolis, Minnesota, USA (2025), Paper No. 185.　2025年9月
Droplet size and temperature distributions of liquid ammonia sprays at various superheat levels using a hollow cone nozzle.

K. D. Kunkuma, A. Somarathne, Y. R. Chen, Keito Honda, Taku Kudo, Akihiro Hayakawa, Hideaki Kobayashi

The 3rd Symposium on Ammonia Energy (SoAE), Shanghai, China (2024), Paper No. A0356.　2024年9月
Numerical modeling of liquid ammonia flashing sprays at various superheat degrees

K. D. Kunkuma, A. Somarathne, Y. R. Chen, Keito Honda, Taku Kudo, Akihiro Hayakawa, Hideaki Kobayashi

The 40th International Symposium on Combustion, Milan, Italy (2024), Paper No. 145.　2024年8月
Numerical investigation of flash-boiling atomization characteristics of liquid-ammonia fuel at various superheat degrees

K. D. Kunkuma, A. Somarathne, Hirofumi Yamashita, Kohei Oku, Keito Honda, Taku Kudo, Akihiro Hayakawa, Hideaki Kobayashi

19th International Conference on Numerical Combustion, Kyoto, Japan (2024), Paper No. ICNC2024-1025.　2024年5月
The Temperature Characteristics of Liquid Ammonia Spray at High Pressures

K. D. Kunkuma, A. Somarathne, Hirofumi Yamashita, Kohei Oku, Keito Honda, Taku Kudo, Akihiro Hayakawa, Hideaki Kobayashi

The 20th International Conference on Flow Dynamics, Sendai, Japan (2023), Paper No. OS2-43.　2023年11月
The Characteristics of liquid ammonia sprays at various ambient pressures

K. D. Kunkuma, A. Somarathne, Hirofumi Yamashita, Taku Kudo, Akihiro Hayakawa, Hideaki Kobayashi

The 2nd Symposium on ammonia Energy, Orleans, France (2023), Paper No.64.　2023年9月
適度に高圧のガスタービン様燃焼器における気体水素と共燃焼した液体Ammonia及び気体Ammonia火炎の排出特性【JST・京大機械翻訳】

SOMARATHNE Kapuruge Don Kunkuma Amila, YAMASHITA Hirofumi, COLSON Sophie, HAYAKAWA Akihiro, KUDO Taku, KOBAYASHI Hideaki

Proceedings. International Conference on Flow Dynamics (CD-ROM)　19th　2022年
Optimum Equivalence Ratio for Low NO and Unburned NH3 Emissions in Gaseous Ammonia Flames Co-fired with Methane or Hydrogen in a Swirling Flow

Hirofumi Yamashita, Akihiro Hayakawa, Ekenechukwu C. Okafor, Sophie Colson, K. D. Kunkuma, A. Somarathne, Taku Tsujimura, Shintaro Ito, Masahiro Uchida, Taku Kudo, Hideaki Kobayashi

The 13th Asia-Pacific Conference on Combustion (ASPACC), Abu Dhabi, UAE (2021), Paper No. M10-09.　2021年11月
旋回流中のアンモニア/空気予混合火炎の安定化における過剰エンタルピーの役割に関する研究

COLSON Sophie, SOMARATHNE Kapuruge Don Kunkuma Amila, SUGAWARA Daiki, HAYAKAWA Akihiro, KOBAYASHI Hideaki

燃焼シンポジウム講演論文集(CD-ROM)　59th　2021年
高圧での液体アンモニア/水素/空気共燃焼におけるアンモニア燃料分率の影響に関する数値研究

SOMARATHNE Kapuruge Don Kunkuma Amila, COLSON Sophie, HAYAKAWA Akihiro, KOBAYASHI Hideaki

燃焼シンポジウム講演論文集(CD-ROM)　59th　2021年
種々の周囲圧力での中空円錐ノズルを用いた液体Ammonia噴霧特性【JST・京大機械翻訳】

SOMARATHNE Kapuruge Don Kunkuma Amila, YAMASHITA Hirofumi, YAMASHITA Hirofumi, COLSON Sophie, HAYAKAWA Akihiro, KOBAYASHI Hideaki.

Proceedings. International Conference on Flow Dynamics (CD-ROM)　18th　2021年
ガスタービン様燃焼器における液体アンモニア噴霧燃焼の可能性に関する数値研究

SOMARATHNE Kapuruge Don Kunkuma Amila, HAYAKAWA Akihiro, KOBAYASHI Hideaki

燃焼シンポジウム講演論文集(CD-ROM)　58th　2020年
NO排出特性に対するCH₄/空気渦流火炎へのNH₃添加の影響

SOMARATHNE Kapuruge Don Kunkuma Amila, HAYAKAWA Akihiro, KOBAYASHI Hideaki

燃焼シンポジウム講演論文集(CD-ROM)　57th　2019年
ガスタービン様燃焼器のアンモニア/空気旋回火炎の排出特性に及ぼす壁熱伝達の影響

SOMARATHNE Kapuruge Don Kunkuma Amila, HAYAKAWA Akihiro, KOBAYASHI Hideaki

Proceedings. International Conference on Flow Dynamics (CD-ROM)　15th　2018年11月
アンモニア/空気非予混合旋回流火炎の放出特性に対するガスタービン様の燃焼器の器壁消炎効果

SOMARATHNE Kapuruge Don Kunkuma Amila, HAYAKAWA Akihiro, KOBAYASHI Hideaki

燃焼シンポジウム講演論文集　56th　2018年
Effect of pressure on combustion characteristics of ammonia/air premixed turbulent flames in swirling flows

Akihiro Hayakawa, Yoshiyuki Arakawa, K. D. Kunkuma, A. Somarathne, Taku Kudo, Hideaki Kobayashi

The 9th JSME-KSME Thermal and Fluid Engineering Conference (TFEC9), Okinawa, Japan (2017), Paper No. 1174.　2017年10月
Combustion and emission characteristics of premixed and non-premixed ammonia/air turbulent swirl flames at high pressure and temperature

K. D. Kunkuma, A. Somarathne, Akihiro Hayakawa, Hideaki Kobayashi

The 26th International Colloquium on Dynamics of Explosions and Reactive Systems (ICDERS), Boston, USA (2017), Paper No. 997.　2017年8月
Numerical investigation on emission reduction characteristics of turbulent swirl flames for ammonia/air mixture

K. D. Kunkuma, A. Somarathne, Ekenechukwu C. Okafor, Akihiro Hayakawa, Hideaki, Kobayashi

The 36th International Symposium on Combustion, Seoul, South Korea (2016), Poster No. 123　2016年8月
Numerical Investigation on the Combustion Characteristics of Turbulent Premixed Swirl Flames for Ammonia/air Mixture

K. D. Kunkuma, A. Somarathne, Ekenechukwu C. Okafor, Akihiro Hayakawa, Hideaki, Kobayashi

The 12th International Conference on Flow Dynamics, Sendai, Japan (2015), Paper No. OS2-4.　2015年11月
Realization of the Effect of Self-dilution Characteristics in Confined Flames on NOx Abetment

K.D. Kunkuma, A. Somarathne, Susumu Noda, Akihiro Hayakawa, Hideaki Kobayashi

The 35th International Symposium on Combustion, San Francisco, California, USA (2014), Poster. 6　2014年8月
Numerical Study of the NOx Characteristics in Confined Turbulent Diffusion Flames

K.D. Kunkuma, A. Somarathne, Susumu Noda

The International Symposium on Eco-Topia Science 2013, Nagoya, Japan (2013), Paper No. 123.　2013年11月
Numerical investigation of the effect of self-dilution in confined turbulent non-premixed flames on $NO_x$ reduction.

K. D. Kunkuma, A. Somarathne, Susumu Noda

The 24th International Colloquium on Dynamics of Explosions and Reactive Systems (ICDERS), Taipei, Taiwan (2013), Paper No. 119.　2013年8月
NOx Reduction of Non-Premixed Flames by Combination of Burner and Furnaces

SOMARATHNE Kapuruge Don Kunkuma Amila, PARWATHA I Gede, OGURI Shoichiro, NADA Yuzuru, ITO Takahiro, NODA Susumu

Journal of Environment and Engineering　8　(1)　1-10　2013年
出版者・発行元： The Japan Society of Mechanical Engineers
DOI： 10.1299/jee.8.1 　

eISSN： 1880-988X

詳細を見る詳細を閉じる

This study proposes an idea of NOx reduction and high efficiency combustion by combination of burner and furnace. This is basically attributed to the use of entrainment of burnt gases to flame in furnace. The entrainment of burnt gases leads the dilution of flame and the recovery of heat to be exhausted. The phenomena are strongly related to the geometry of burner and furnace. The temperature, concentration, and flow field characteristics were investigated for piloted propane non-premixed flames in the cylindrical furnaces in terms of NOx emission. The effects of the furnace inner diameter, D₁, air inlet velocity difference, ΔU_a, and global equivalence ratio,φ, on NOx emission were investigated. Moreover, two kinds of materials: Pyrex glass and stainless steel were used as the furnace wall to evaluate the radiation effect through the comparison of the flame characteristics. The emission index of NOx, EINOx, decreases roughly with the increase of above parameters. This decrease is observed to be a consequence of dilution by the burnt gases and flame stretch. The dilution is attributed to the recirculation structure, which is formed at the bottom of the furnace. The flame stretch is related to the velocity difference, which is introduced by multiple air inlets. The EINOx of confined non-premixed flame is scaled by the parameter D₁U_FΔU_a, which is proportional to Re,cDa^-1. Here, U_F is the fuel velocity, Re,c is the furnace Reynolds number reflecting the turbulence in the furnace, and Da is the Damköhler number reflecting the flame stretch. The parameter D₁U_FΔU_a is related linearly to the volume flow rate entrained in to the flame. Thus, this study verified that the EINOx of confined non-premixed flame is dominated primarily from the entrainment of burnt gases by the recirculation vortex and secondarily by the turbulence at the flame boundary, which is generated by the air velocity difference. In addition, it is found that under present experimental conditions, the radiation effect on the EINOx is small and constant with respect to the parameters. Thus, this idea has a potential for practical applications.
Numerical Evaluation of the Effect of Global Equivalence Ratio on Confined Turbulent Non-Premixed Flames

SOMARATHNE Kapuruge Don Kunkuma Amila, NODA Susumu

Journal of Environment and Engineering　8　(1)　11-26　2013年
出版者・発行元： The Japan Society of Mechanical Engineers
DOI： 10.1299/jee.8.11 　 10.1299/jfst.2014jfst0039_references_DOI_9J3rNJF1atH5immliLW9pdnsWxZ 　

eISSN： 1880-988X

詳細を見る詳細を閉じる

The control of nitrogen oxides (NOx) is currently a major issue in designing an effective combustion system because NOx has several detrimental effects on the environment and human health. However, it is difficult to understand NOx formation processes in flames because of complicated interactions between the flow and chemistry. In this study, a partially-stirred-reactor combustion model is implemented in the OpenFOAM CFD tool to model confined turbulent non-premixed propane jet flames, and the NOx emission is evaluated in terms of the global equivalence ratio. The code solves Reynolds-Averaged Navier Stokes equations on an unstructured mesh in a cylindrical coordinate system. The computational predictions of scalar and flow fields in the combustion chamber are extensively compared to experimental measurements, and they show a good agreement. The oxidation and heat-release rates of propane are computationally evaluated, and they are used to verify the scalar fields such as temperature and mole fractions of species. The increase in the global equivalence ratio increases the maximum temperature of the furnace because of the enhancement of reaction rate, and thereby, leads to the enrichment of the NOx emission.
部分撹拌燃焼器モデルによる炉内乱流拡散燃焼の数値解析

SOMARATHNE K.D.Kunkuma Amila, ITO Takahiro, NODA Susumu

日本機械学会年次大会講演論文集(CD-ROM)　2012　2012年

ISSN： 2424-2667

︎全件表示 ︎最初の5件までを表示

共同研究・競争的資金等の研究課題 1

高圧環境下における液体アンモニア噴霧燃焼のダイナミクスと壁面干渉メカニズムの解明

早川晃弘, Okafor Ekenechukwu, 伊藤尚義, Chen YiRong, K.D.KUNKUMA.A. SOMARATHNE

提供機関：Japan Society for the Promotion of Science

制度名：Grants-in-Aid for Scientific Research

研究種目：Grant-in-Aid for Scientific Research (A)

研究機関：Tohoku University

2025年4月1日～ 2029年3月31日