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Yasuyuki Ishida

Section

Graduate School of Engineering

Job title

Assistant Professor

Degree

博士（工学）（東北大学）
修士（工学）（東北大学）

researchmap

https://researchmap.jp/7000019132

J-GLOBAL ID

201701014733721741

ORCID

https://orcid.org/0000-0001-6683-4372

Research History 4

2024/06 - Present

Ochanomizu University　Faculty of Core Research, Natural Sciences Division　Assistant Professor
2022/04 - Present

Tohoku University　Graduate School of Engineering Department of Architecture and Building Science　Assistant Professor
2016/07 - 2022/03

Tohoku University　Graduate School of Engineering Department of Architecture and Building Science　Research Associate
2011/04 - 2016/06

Oriental Land Co.,Ltd　Department of Facility, Archtectural Design

Education 1

Tohoku University　Graduate School, Division of Engineering　Department of Architecture and Building Science

- 2011/03

Committee Memberships 10

日本建築学会　屋外空気環境小委員会風環境予測・評価体系化検討WG

2025/04 - Present
一般社団法人日本風工学会　編集・広報委員会

2024/06 - Present
Architectural Institute of Japan　Subcommittee on Environmental Engineering, AIJ Tohoku Branch

2016/09 - Present
一般社団法人日本建築学会　暑熱適応まちづくり検討小委員会

2025/04 - 2027/03
一般社団法人日本建築学会　DX・AI建築環境教育小委員会

2025/04 - 2027/03
一般社団法人日本建築学会東北支部　東北建築賞研究奨励賞選考委員会

2024/06 - 2026/03
一般社団法人日本建築学会東北支部　第45回東北建築賞研究奨励賞選考委員会

2024/04 - 2025/03
一般社団法人日本風工学会風速鉛直分布実測データ研究会

2022/06 - 2024/05
JAPAN ASSOCIATION FOR WIND ENGINEERING　Steering and Scientific Committee

2020/06 - 2024/05
一般社団法人日本建築学会　次世代デジタル建築環境教育検討小委員会

2022/05 - 2024/03

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Professional Memberships 2

Japan Association for Wind Engineering
Architectural Institute of Japan

Research Interests 4

Ventilation Path
Wind Enginnering
Urban Environment
CFD

Research Areas 1

Social infrastructure (civil Engineering, architecture, disaster prevention) / Construction environment and equipment /

Awards 8

Wiley Top Cited Article 2022-2023 -JAPAN ARCHITECTURAL REVIEW

2024/04　John Wiley & Sons　Proposal of LCZ categories;standards considering super high-rise buildings suited for Asian cities;based on the analysis of urban morphological properties of Tokyo
Wiley Top Downloaded Article -JAPAN ARCHITECTURAL REVIEW

2024/03　John Wiley & Sons　Proposal of LCZ categories and standards considering super high-rise buildings suited for Asian cities based on the analysis of urban morphological properties of Tokyo
大成学術財団選奨金賞

2023/10　一般社団法人大成学術財団　猛暑・洪水・強風適応型都市の創出に資するピロティ空間の功罪の総合評価手法の開発
Encouragement Prize of AIJ Architectural Institute of Japan

2023/09　ARCHITECTURAL INSTITUTE OF JAPAN
Best Paper Award 2022 Japan Architectural Review

2023/08　ARCHITECTURAL INSTITUTE OF JAPAN　Proposal of LCZ categories and standards considering super high-rise buildings suited for Asian cities based on the analysis of urban morphological properties of Tokyo
Award for Encouragement of Research, Japan association for wind engineering

2020/05　Japan association for wind engineering　Influence of urban configuration on the structure of kinetic energy transport and the energy dissipation rate
東北大学大学院工学研究科都市・建築学専攻青葉賞

2011/03　東北大学大学院
日本建築学会優秀卒業論文賞

2009/08/26　一般社団法人日本建築学会

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Papers 54

Computational conditions for Large-Eddy Simulation to predict wind pressure acting on building walls with sufficient numerical stability and accuracy Peer-reviewed

Yu Inaba, Yuta Yamane, Yasuyuki Ishida

Proceedings of 9th European-African on Wind Engineering　2025/06
Exploring the heat balance characteristics in Shanghai by using the WRF model coupled with Local Climate Zone scheme Peer-reviewed

Zheng Wang, Yasuyuki Ishida, Yifei Peng, Jingyuan Ren, Akashi Mochida

Sustainable Cities and Society　124　106295-106295　2025/04
Publisher: Elsevier BV
DOI： 10.1016/j.scs.2025.106295 　

ISSN： 2210-6707
Parameter Estimation of Stomatal Conductance Model to Predict Whole‐Tree Transpiration Rate and Spatial Distribution of Leaf Surface Temperature Within the Canopy

Suzuka Deushi, Yasuyuki Ishida, Jun Teshirogi, Akashi Mochida, Haruka Nishiyama

JAPAN ARCHITECTURAL REVIEW　2025/01

DOI： 10.1002/2475-8876.70042 　
STUDY ON COMPUTATIONAL COMDITIONS FOR LES TO PREDICT WIND PRESSURE ACTING ON BUILDING WALLS WITH SUFFICIENT NUMERICAL STABILITY AND ACCURACY Peer-reviewed

Yu INABA, Yasuyuki ISHIDA, Yuta Yamane, Akashi MOCHIDA

Wind Engineering Research　28　145-154　2024/12

DOI： 10.14887/windengresearch.28.0_145 　
Estimation of Longwave Radiation Intensity Emitted from Urban Obstacles in Each Direction Using Drone-Based Photogrammetry Peer-reviewed

Yasuyuki Ishida, Mamiko Fujiyama, Hikaru Kobayashi

Remote Sensing　16　(21)　4017　2024/10/29

DOI： 10.3390/rs16214017 　

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Longwave radiation is a crucial factor affecting human thermal comfort and thermal stress, especially in outdoor spaces in summer, owing to the vast effect of longwave radiation emitted from high-heated asphalt roads, building walls, and automobiles. Although controlling the longwave radiation environment to improve thermal comfort in summer is crucial, the prediction of the longwave radiation environment is frequently conducted only at the assessment stage of the final proposal because of the high computational cost of radiation calculations and unsteady heat balance analysis considering multiple reflections. This is a significant constraint for the design of urban and architectural environments. A previous study proposed a method to rapidly estimate the longwave radiation environment based on a point-by-point method with longwave radiation intensity distributions of the heat sources. To use this method, 3D models of the geographical objects in urban areas, such as buildings and trees, must be accurately generated, and these models should have information on the longwave radiation emitted in each direction from each object. However, no specific examples of a 3D model and longwave radiation intensity distribution have been presented. In this study, a 3D modeling method for geographical objects in urban areas with longwave radiation information based on drones and photogrammetric techniques was utilized. Moreover, a 3D model of a small-scale building was generated. A longwave radiation intensity distribution was produced for the building. Based on the distribution data, the directional characteristics of longwave radiation were discussed, and the availability of the proposed method was assessed.
Study on the modified three-temperature model for spatial extrapolation of evapotranspiration based on individual urban vegetation evapotranspiration data Peer-reviewed

Qiong Li, Qi Li, Haotian Wu, Jiayi Mi, Xiaohui Lu, Akashi Mochida, Yasuyuki Ishida, Zhixin Liu

Building Simulation　2024/08/09
Publisher: Springer Science and Business Media LLC
DOI： 10.1007/s12273-024-1158-x 　

ISSN： 1996-3599

eISSN： 1996-8744
Impact of a single high-rise building on the wind pressure acting on the surrounding low-rise buildings Peer-reviewed

Yasuyuki Ishida, Akihito Yoshida, Yuta Yamane, Akashi Mochida

Journal of Wind Engineering and Industrial Aerodynamics　250　105742-105742　2024/07
Publisher: Elsevier BV
DOI： 10.1016/j.jweia.2024.105742 　

ISSN： 0167-6105
Observation of Daily Wind (Strong to Medium-low Winds) Characteristics Using Doppler Lidar

Hideki Kikumoto, Akinori Akahoshi, Yasuyuki Ishida, Kiyoshi Sasaki, Keigo Nakajima, Toru Yamanaka

Wind Engineers, JAWE　49　(2(179))　94(20)-101(27)　2024/04
Assessment of cooling effect of sea breeze under future climate based on analysis of heat balance mechanism of urban space Peer-reviewed

Miguel Yamamoto, Yasuyuki Ishida, Akashi Mochida, Hikaru Kobayashi, Hironori Watanabe, Kyohei Abe, Shuhei Fujita

Building and Environment　253　111296-111296　2024/02
Publisher: Elsevier BV
DOI： 10.1016/j.buildenv.2024.111296 　

ISSN： 0360-1323
Measurement and Modeling of Transpiration of Trees in Urban Areas -toward evaluation of mitigation and adaptation effects on heat islands- Peer-reviewed

Akashi Mochida, Yasuyuki Ishida, Suzuka Deushi

Urban Environmental Studies Opens the Future of Asia, AIUE 2024　18　2024
Large eddy simulations of strong wind mechanisms at pedestrian level around square-section buildings with same aspect ratios and different sizes Peer-reviewed

Qiang Lin, Yasuyuki Ishida, Hideyuki Tanaka, Akashi Mochida, Qingshan Yang, Yukio Tamura

Building and Environment　243　110680-110680　2023/09
Publisher: Elsevier BV
DOI： 10.1016/j.buildenv.2023.110680 　

ISSN： 0360-1323
Study on the stomatal conductance model for the prediction of transpiration rate and leaf surface temperature distribution of a single tree on typical summer days based on the result of field measurement

Suzuka Deushi, Yasuyuki Ishida, Yumi Hashimoto, Akashi Mochida

11th International Conference on Urban Climate, August 28 - September 1, 2023, Sydney, Australia　16　2023/08
Estimation of long-wave radiation emitted in each direction using a 3D small building model by drone-based photogrammetry

Yasuyuki Ishida, Hikaru Kobayashi, Mamiko Fujiyama, Akashi Mochida

11th International Conference on Urban Climate, August 28 - September 1, 2023, Sydney, Australia　44　2023/08
Urban morphology promoting high breathability and controlling strong winds at the pedestrian level

Akashi Mochida, Yota Ono, Yasuyuki Ishida, Ryutaro Ogihara

16th International Conference on wind engineering, August 27-31, 2023, Florence, Italy　2023/08
Spatio-temporal structure of sea breezes based on two Doppler lidars observations and its influence on temperature and humidity near the ground during summer in coastal city Sendai, Japan

Miharu Hamazaki, Yasuyuki Ishida, Maho Onoda, Hiroyuki Watanabe, Hiromi Ueda, Akashi Mochida

11th International Conference on Urban Climate, August 28 - September 1, 2023, Sydney, Australia　168　2023/08
Effective Factors for Reducing Land Surface Temperature in Each Local Climate Zone Built Type in Tokyo and Shanghai Peer-reviewed

Zheng Wang, Yasuyuki Ishida, Akashi Mochida

Remote Sensing　15　(15)　3840-3840　2023/08/01
Publisher: MDPI AG
DOI： 10.3390/rs15153840 　

eISSN： 2072-4292

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Identifying the main factors influencing the land surface temperature (LST) of each local climate zone (LCZ) built type is of great significance for controlling LST. This study investigated the main factors influencing the LST of each LCZ built type in two Asian megacities: Tokyo and Shanghai. Each area in both megacities was classified according to the LCZ scheme. The diurnal LST, pervious surface fraction (PSF), surface albedo (SA), average building height (⟨BH⟩), and gross building coverage ratio (λp) of each LCZ were also calculated. Finally, the influence of the properties of each LCZ built type on LST was investigated. The results demonstrated that the main factors influencing LST of different LCZ built types differed in Tokyo and Shanghai. ⟨BH⟩ was the main factor influencing LST for compact mid-rise and open high-rise types in Tokyo, and the compact mid-rise type in Shanghai; PSF was the main factor influencing LST for other LCZ built types. Moreover, both ⟨BH⟩ and PSF negatively correlated with LST. Based on the above results and characteristics of each LCZ built type, specific LST mitigation strategies for each LCZ built type were proposed for Tokyo and Shanghai. The approach in this study can contribute to perspectives for urban planners and policymakers to develop highly feasible and reasonable LST mitigation strategies.
DEVELOPMENET OF RAPID-ESTIMATION METHOD FOR LONG-WAVE RADIATION DISTRIBUTION WITHIN URBAN SPACE Peer-reviewed

29　(72)　898-903　2023/06

DOI： 10.3130/aijt.29.898 　
A STUDY ON FLOOD DAMAGE EVALUATION IN URBAN DISTRICT BY FLUID ANALYSIS USING THE SPH METHOD -INFLUENCES OF PILOTI-TYPE BUILDINGS ON THE WATER FLOW WITHIN URBAN DISTRICT AND HYDRAULIC PRESSURE ON THE SURROUDING BUILDINGS DURING RIVER FLOOD- Peer-reviewed

Kosuke MITOMI, Noriyuki TAKAHASHI, Yasuyuki ISHIDA

29　(72)　671-676　2023/06

DOI： 10.3130/aijt.29.671 　
Influence of Land Cover and Morphological Properties of Each LCZ Built Type on Land Surface Temperature in Tokyo and Shanghai

Zheng Wang, Yasuyuki Ishida, Akashi Mochida

Indoor Air Quality, Ventilation and Energy Conservation 2023　233　2023/05
Impacts of Urban Development between 2002 and 2022 on the Effects of Sea Breezes in Sendai, Japan—Analyzing Heat Balance Mechanism in Urban Space Peer-reviewed

Yonghang Xie, Yasuyuki Ishida, Hironori Watanabe, Akashi Mochida

Atmosphere　14　(4)　677-677　2023/04/03
Publisher: MDPI AG
DOI： 10.3390/atmos14040677 　

eISSN： 2073-4433

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Sea breezes are important in a coastal urban climate; however, the impact of urban development on the effects of sea breezes, which decrease air temperature and increase humidity, has not been understood quantitatively. To quantitatively evaluate this impact in Sendai, Japan over the past twenty years, this study analyzed the heat balance mechanisms in urban spaces based on the simulation results of the Weather Research and Forecasting (WRF) model coupled with Local Climate Zone (LCZ) maps. Compared to the observation data on air temperature, specific humidity, and wind in August 2002, results of the numerical simulation, using the 2002 LCZ map and the meteorological conditions of August 2002, confirmed that the WRF model could reproduce meteorological factors well. Thereafter, two numerical simulations using the LCZ maps from 2002 and 2022 were conducted based on the same meteorological condition, from 25 July to 1 September 2008, to extract the impact of urban development on the effects of sea breeze. Consequently, when land use changed from urban built-up land to natural land cover, both the effects of sea breeze—decreasing air temperature and increasing humidity—decreased. Additionally, increases in LCZ 3 (compact low rise), mainly from LCZ 6 (open low rise) and LCZ 9 (sparsely built), decreased the effects of sea breeze (decreasing air temperature and increasing humidity) by 5% and 10%, respectively, in areas around Sendai Station. This was because the consumption of the sea breeze’s potential to decrease air temperature and increase humidity increased and the wind speed of sea breezes decreased in the windward areas of Sendai Station. These results provide new insights into the impact of urban development on the effects of sea breeze and quantitatively reveal changes in the effects of sea breeze.
Wind Tunnel Experiments on Interference Effects of a High-Rise Building on the Surrounding Low-Rise Buildings in an Urban Block Peer-reviewed

Yasuyuki Ishida, Akihito Yoshida, Shuhei Kamata, Yuta Yamane, Akashi Mochida

Wind　3　(1)　97-114　2023/02/21
Publisher: MDPI AG
DOI： 10.3390/wind3010007 　

eISSN： 2674-032X

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High-rise buildings cause accelerated winds around them. However, the interference effects of high-rise buildings on the surrounding low-rise buildings in urban blocks have not been evaluated. This study investigated the wind pressure coefficients on the roofs and walls of low-rise buildings surrounding a high-rise building through wind tunnel experiments. Seventy-two wind directions were considered from 0° to 355° in 5° increments, and the influence of the wind direction on the wind pressure coefficients of surrounding buildings was evaluated. At a 30° wind direction angle, the positive and negative peak wind pressure coefficients occurred in a low-rise building at the leeward side of the high-rise building. The positive peak pressure, approximately 1.4 times that without a nearby high-rise building, occurred at the windward corner on the front wall of a low-rise building. The negative peak value, approximately three times that without a nearby high-rise building, was observed at the windward edge on the roof of a low-rise building. Thus, accelerated winds caused by high-rise buildings may result in unexpected damage to the surrounding low-rise buildings.
FUTURE CHANGE IN OCCURRENCE FREQUENCY OF WIND VELOCITY DURING NORMAL CONDITIONS BY WRF Peer-reviewed

Miharu HAMAZAKI, Yasuyuki ISHIDA, Akashi MOCHIDA

National Symposium on Wind Engineering Proceedings　27　108-112　2022/12
WIND TUNNEL EXPERIMENTS ON PEAK WIND PRESSURE COEFFICIENTS FOR LOW-RISE BUILDINGS SURROUNDING A HIGH-RISE BUILDING Peer-reviewed

Shuhei KAMATA, Yuta YAMANE, Yasuyuki ISHIDA, Akihito YOSHIDA, Akashi MOCHIDA

National Symposium on Wind Engineering Proceedings　27　76-83　2022/12
ANALYSIS OF HORIZONTAL AND VERTICAL COMPONENTS OF ADVECTION IN SENSIBLE HEAT BALANCE IN URBAN SPACE USING WRF Peer-reviewed

Kyohei ABE, Yasuyuki ISHIDA, Akashi MOCHIDA

National Symposium on Wind Engineering Proceedings　27　26-30　2022/12
INFLUENCES OF PILOTI-TYPE BUILDING ON THE SURROUNDING WIND ENVIRONMENT AND WIND PRESSURE ON A DOWNWIND BUILDING Peer-reviewed

Yota ONO, Yuya FUJITA, Yasuyuki ISHIDA, Noriyuki TAKAHASHI, Akashi MOCHIDA

National Symposium on Wind Engineering Proceedings　27　69-75　2022/12
Exploring the impacts of heat release of vehicles on urban heat mitigation in Sendai, Japan using WRF model integrated with urban LCZ Peer-reviewed

Zhou, X., Yamamoto, M., Yan, S., Ishida, Y., Cai, M., Ji, Q., Makv, i, M., Li, C.

Sustainable Cities and Society　82　103922-103922　2022/07
Publisher: Elsevier BV
DOI： 10.1016/j.scs.2022.103922 　

ISSN： 2210-6707
Prediction of mean radiant temperature distribution around a building in hot summer days using optimized multilayer neural network model Peer-reviewed

Xie, Y., Ishida, Y., Hu, J., Mochida, A.

Sustainable Cities and Society　84　103995-103995　2022/06
Publisher: Elsevier BV
DOI： 10.1016/j.scs.2022.103995 　

ISSN： 2210-6707
Proposal of LCZ categories and standards considering super high-rise buildings suited for Asian cities based on the analysis of urban morphological properties of Tokyo Peer-reviewed

Chiba, E., Ishida, Y., Wang, Z., Mochida, A.

Japan Architectural Review　5　(3)　247-268　2022/05

DOI： 10.1002/2475-8876.12269 　

ISSN： 2475-8876
QUANTIFICATION OF THE EFFECTS OF MEASURES AGAINST HOT OUTDOOR ENVIRONMENT ON ADAPTATION TO URBAN WARMING, MITIGATION OF HEAT ISLAND PHENOMENA, AND MITIGATION OF GLOBAL WARMING,都市の暑熱化への適応、ヒートアイランド現象緩和、地球温暖化緩和の観点からの街路空間の暑さ対策効果の定量化 Peer-reviewed

Yumino, S., Ishida, Y., Ohba, Y., Uchida, T., Kobayashi, H., Mochida, A.

Journal of Environmental Engineering (Japan)　87　(794)　271-281　2022/04/01
Publisher: Architectural Institute of Japan
DOI： 10.3130/aije.87.271 　

ISSN： 1881-817X 1348-0685

eISSN： 1881-817X
Corrigendum: Parameter identification of stomatal conductance model for the prediction of transpiration rate on typical summer days based on the result of field measurement of transpiration rate of zelkova serrata (Journal of Environmental Engineering (Japan) (2021) 86:782 (377-387) DOI: 10.3130/aije.86.377),Corrigendum: 訂正：ケヤキを対象とする蒸散量測定に基づく典型的な夏期晴天日における蒸散量予測を目的とした気孔コンダクタンスモデルのモデルパラメータ同定 (Journal of Environmental Engineering (Japan) (2021) 86:782 (377-387) DOI: 10.3130/aije.86.377)

Kobayashi, E., Ishida, Y., Homma, M., Ishidu, H., Teshirogi, J., Mochida, A.

Journal of Environmental Engineering (Japan)　87　(792)　188-188　2022

DOI： 10.3130/aije.87.188 　

ISSN： 1881-817X 1348-0685
A backpropagation neural network improved by a genetic algorithm for predicting the mean radiant temperature around buildings within the long-term period of the near future International-journal Peer-reviewed

Xie, Y., Ishida, Y., Hu, J., Mochida, A.

Building Simulation　15　(3)　2022
Publisher: Springer Science and Business Media LLC
DOI： 10.1007/s12273-021-0823-6 　

ISSN： 1996-8744 1996-3599

eISSN： 1996-8744
Les analysis of impact of non-uniformity of building height in highly dense urban district on wind environment (Part 2): Transportation and dissipation of total kinetic energy in streamwise and vertical direction,LES による高密度市街地の建物高さの非一様性が風環境に及ぼす影響の分析(その 2)：主流方向及び鉛直方向の運動エネルギーの輸送及び散逸の構造 Peer-reviewed

Ishida, Y., Endo, Y., Mochida, A., Shirasawa, T., Yoshie, R., Tanaka, H.

Journal of Environmental Engineering (Japan)　86　(784)　649-659　2021/06/30
Publisher: Architectural Institute of Japan
DOI： 10.3130/aije.86.649 　

ISSN： 1881-817X 1348-0685

eISSN： 1881-817X
PARAMETER IDENTIFICATION OF STOMATAL CONDUCTANCE MODEL FOR THE PREDICTION OF TRANSPIRATION RATE ON TYPICAL SUMMER DAYS BASED ON THE RESULT OF FIELD MEASUREMENT OF TRANSPIRATION RATE OF ZELKOVA SERRATA Peer-reviewed

En KOBAYASHI, Yasuyuki ISHIDA, Miki HOMMA, Hikaru ISHIDU, Jun TESHIROGI, Akashi MOCHIDA

Journal of Environmental Engineering (Transactions of AIJ)　86　(782)　377-387　2021/04/30
Publisher: Architectural Institute of Japan
DOI： 10.3130/aije.86.377 　

ISSN： 1348-0685

eISSN： 1881-817X

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The latent heat transfer associated with tree transpiration is one of the influences of trees on the surrounding physical environment and it is important to predict the transpiration rate of trees correctly in order to predict and evaluate the urban heat and water budgets. When trees are planted as a countermeasure against urban warming in street canyon design, it is necessary to predict the influence of commonly planted trees on typical summer days accurately rather than that of a particular tree on a certain day. Various prediction models for transpiration rate and stomatal conductance have been proposed. In this study, in order to predict the transpiration rate of trees widely planted as road side trees on a typical summer day at a certain time with high accuracy, transpiration rate is predicted with the Penman Monteith method incorporating the Jarvis type stomatal conductance model. Penman Monteith method is one of the transpiration models tha t can predict the time variation of transpiration rate on a single tree scale and Jarvis type stomatal conductance model is one of the most widely used stomatal conductance models today. In this study, the time variation of transpiration rate of Zelkova serrata, one of the species widely planted as roadside trees in Japan, on typical summer days was clarified using long term measurement result. Based on the result, model parameters in the Jarvis type stomatal conductance model proposed by Ward et al ^23,24) were identified for the prediction of transpiration rate on typical summer days. The influences of solar radiation (condition of cloud cover), soil water content and vapor pressure deficit on the transpiration rate were analyzed. As for the solar radia tion (condition of cloud cover), the peak of the transpiration rate tended to appear earlier in sunny mornings than cloudy mornings. As for the soil water content, decrease in the transpiration rate was observed due to the continuous decrease of the soil w ater content for three days when the time variation of the vapor pressure deficit and the solar radiation was almost equal. As for the vapor pressure deficit, the increase in the daily total transpiration rate associated with the increase in the daily mean vapor pressure deficit was hardly observed, suggesting that the stomat a of the water stressed tree were closed to prevent excessive drying. As a result of these analyses, the time variation of transpiration rate of Zelkova serrata on typical summer days was clarified, and model parameters in the stomatal conductance model were identified based on the data. The accuracy of transpiration rate and leaf surface temperature prediction using the model which incorporates the stomatal conductance model with the identified parameters into the Penman Monteith method was validated . The model reproduced the tendency that the transpiration rate of the whole single tree peaked in the morning and then decreased . The tendency that the transpiration rate in the tree crown is the highest at the top of the crown, where it receives the most solar radiation, followed by the bottom part, where it receives less solar radiation, and the lowest at the middle part, where it receives little solar radiation was also reproduced. As for the leaf surface temperature, the tendency that the leaf surface temperature varies little at each point in the crown was also reproduced.
STUDY ON THE ACCUMULATED THERMAL LOAD OF WALKING PEDESTRIANS (PART 1): SIMULTANEOUS MEASUREMENTS OF PHYSICAL ENVIRONMENTS AND PHYSIOLOGICAL RESPONSES DURING STANDING AND WALKING OUTDOORS IN SUMMER Peer-reviewed

Yusaku OHBA, Yasuyuki ISHIDA, Takuma HASEGAWA, Tomonobu GOTO, Akashi MOCHIDA

Journal of Environmental Engineering (Transactions of AIJ)　86　(781)　259-269　2021/03
Publisher: Architectural Institute of Japan
DOI： 10.3130/aije.86.259 　

ISSN： 1348-0685

eISSN： 1881-817X
Observation of the vertical profiles of wind velocity by two doppler lidars above city center in coastal city sendai, japan (part 1): Influence of characteristics of inland wind and sea breeze above the city on air temperature and humidity near the ground Peer-reviewed

Ishida, Y., Onoda, M., Watanabe, H., Ueda, H., Mochida, A.

Journal of Environmental Engineering (Japan)　86　(780)　185-195　2021/02
Publisher: Architectural Institute of Japan
DOI： 10.3130/aije.86.185 　

ISSN： 1881-817X 1348-0685

eISSN： 1881-817X
Les analysis of impact of non-uniformity of building height in highly dense urban district on wind environment (part 1): Quantitative evaluation of drag force of urban district and streamwise momentum transport Peer-reviewed

Ishida, Y., Endo, Y., Mochida, A., Shirasawa, T., Yoshie, R., Tanaka, H.

Journal of Environmental Engineering (Japan)　85　(778)　1005-1015　2020/12
Publisher: Architectural Institute of Japan
DOI： 10.3130/AIJE.85.1005 　

ISSN： 1881-817X 1348-0685

eISSN： 1881-817X
Mapping local climate zones for a Japanese large city by an extended workflow of WUDAPT Level 0 method Peer-reviewed

Xilin Zhou, Tsubasa Okaze, Chao Ren, Meng Cai, Yasuyuki Ishida, Akashi Mochida

Urban Climate　33　100660-100660　2020/09
Publisher: Elsevier BV
DOI： 10.1016/j.uclim.2020.100660 　

ISSN： 2212-0955

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World Database and Access Portal Tools (WUDAPT) Level 0 method announced a workflow of mapping Local Climate Zones (LCZs). However, the low accuracy of LCZ classifications in Level 0 especially for the built-up areas caused by recognition of classes and operator bias is becoming an obstacle for further study in WUDAPT Level 1 and 2. Since the landscape in Japan is complicated, the recognition of classes and operator bias may exist for delineating training areas. This article argues an extended workflow of WUDAPT for mapping LCZs with pre-set recognition of classes and parameter analysis. The building coverage ratio (BCR), building height (BH), pervious surface fraction (PSF) were intersected with LCZ map for analysis and expound of the pre-set recognition of LCZ classes. Given the universality of WUDAPT workflow, a satellite method for deriving building data based on free available data sources was proposed. Contributing to WUDAPT level 1 and 2, a LCZ classification of Sendai, as a representative of Japanese large cities, was selected. The study will provide not only an improved methodology of development LCZ data, but also a new urban morphological dataset and its corresponding parameters for mesoscale climate modelling and simulations in Japan.
Study on long-term measurement of transpiration from multiple urban vegetation for grasping latent heat consumption under various conditions Peer-reviewed

Teshirogi, J., Ishida, Y., Mochida, A.

Urban Climate　33　100635-100635　2020/09
Publisher: Elsevier BV
DOI： 10.1016/j.uclim.2020.100635 　

ISSN： 2212-0955
Evaluation of urban heat islands using local climate zones and the influence of sea-land breeze International-coauthorship Peer-reviewed

Zhou, X., Okaze, T., Ren, C., Cai, M., Ishida, Y., Watanabe, H., Mochida, A.

Sustainable Cities and Society　55　2020/04

DOI： 10.1016/j.scs.2020.102060 　

ISSN： 2210-6707
Influence of relative velocity between wind flow and walking pedestrians on human physiological responses and thermal comfort

Kobayashi En, Ohba Yusaku, Ishida Yasuyuki, Goto Tomonobu, Mochida Akashi

National Symposium on Wind Engineering Proceedings　26　156-161　2020
Publisher: Japan Association for Wind Engineering
DOI： 10.14887/natsympwindengproc.26.0_156 　

ISSN： 2435-4392

eISSN： 2435-5437

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It is appropriate to evaluate thermal comfort and heatstroke risk in urban street area based on the accumulated heat stress of walking pedestrians and their human physiological responses. Additionally, since the wind environment to which pedestrians are exposed differs according to the direction of walking even in the same urban street, it is considered to change the human physiological responses, the thermal comfort and heatstroke risk of walking pedestrians. In this study, the influence of the wind environment to which pedestrians are exposed on the human physiological responses and the thermal comfort of walking pedestrians was quantitatively evaluated by the results of simultaneous measurement of the physical environment to which pedestrians are exposed and the amount of human physiological responses of walking pedestrians and numerically simulated by CFD analyses coupled with calculations of radiation and conduction. Moreover, the effects of countermeasures against urban warming introduced in the urban street were evaluated based on the accumulated heat stress of walking pedestrians.
Investigation of effective window area ratio of windows with near infrared rays retro-reflective film to mitigate thermal stress for pedestrians using CFD analysis coupled with directional radiant computation

Shinji Yoshida, Haruka Miyagaki, Akashi Mochida, Yasuyuki Ishida

42st Japanese Society of Human-Environment Symposium　42　1-4　2018/12

DOI： 10.24538/jhesp.42.0_133 　
Influence of urban configuration on the structure of kinetic energy transport and the energy dissipation rate Peer-reviewed

Ishida, Y., Okaze, T., Mochida, A.

Journal of Wind Engineering and Industrial Aerodynamics　183　193-213　2018/12

DOI： 10.1016/j.jweia.2018.10.016 　

ISSN： 0167-6105
EFFECTS OF TREE PLANTING INTERVAL ON THERMAL ENVIRONMENT AT PEDESTRIAN LEVEL Peer-reviewed

Miki HOMMA, Chiaki ARAI, Yasuyuki ISHIDA, and Akashi MOCHIDA

25th Proceedings of National Symposium on Wind Engineering　133-138　2018/12

DOI： 10.14887/kazekosymp.25.0_133 　
STUDY ON CHARACTERISTICS OF URBAN CLIMATE BASED ON THE RESULTS OF DOPPLER LIDAR OBSERVATIOM ABOVE CITY CENTER AND MULTI-POINT MEASUREMENTS OF AIR TEMPERATURE AND HUMIDITY OVER WIDE AREA IN SENDAI CITY Peer-reviewed

Maho ONODA, Yasuyuki ISHIDA, Hironori WATANABE, Miguel YAMAMOTO, Hiromi UEDA, Akashi MOCHIDA

25th Proceedings of National Symposium on Wind Engineering　145-150　2018/12

DOI： 10.14887/kazekosymp.25.0_145 　
DEVELOPMENT OF MICROCLIMATE SIMURATION METHOD COMBINING WRF WITH LES AND FUTURE PREDICTION OF THERMAL ENVIRONMENT IN AN ACTUAL DISTRICT Peer-reviewed

Masataka KASAI, Tsubasa OKAZE, Yasuyuki ISHIDA, Miguel YAMAMOTO, Akashi MOCHIDA

25th Proceedings of National Symposium on Wind Engineering　223-228　2018/12

DOI： 10.14887/kazekosymp.25.0_223 　
LES on the relationship between geometric parameters of buildings and pedestrian-level wind velocity in the built-up areas

Yasuyuki Ishida, Issei Takada, Tsubasa Okaze, Akashi Mochida

Proceedings of The 7th International Symposium on Computational Engineering 2018　2018/06
Analysis of the structure of kinetic energy transport and dissipation due to the effect of urban roughness

Yasuyuki Ishida, Tsubasa Okaze, Akashi Mochida

Proceedings of International Workshop on Wind-Related Disaster and Mitigation　91　2018/03
Measurement of physiological responses of walking and standing pedestrians exposed to changeable thermal environment in outdoor space Peer-reviewed

Takuma Hasegawa, Yasuyuki Ishida, Saori Yumino, Tomonobu Goto, Akashi Mochida

Journal of Heat Island Institute International　12　(2)　46-53　2017/08
LES analysis to obtain turbulent statistics for development of urban canopy model - Evaluation of turbulent statistics related to production of turbulent kinetic energy -

Yasuyuki Ishida, Hiroaki Ato, Shu Watanabe, Tsubasa Okaze, Mochida Akashi

第30回数値流体力学シンポジウム　2016/12/12
Analysis of kinetic energy balance in urban area based on LES data

Tsubasa Okaze, Yasuyuki Ishida, Taichi Shirasawa, Akashi Mochida

Proceedings of 8th International Conference on Urban Climates　2012/08
LES analysis of kinetic energy balance in an urban area Peer-reviewed

Yasuyuki Ishida, Taichi Shirasawa, Akashi Mochida

Proceedings of 13th International Conference on Wind Engineering　2011/07
Large-eddy Simulation of Flowfields in High Dense Cities -Effects of Building Heights on Drag Force and Mean Kinetic Energy Transport- Peer-reviewed

Taichi Shirasawa, Yoshinobu Endo, Yasuyuki Ishida, Akashi Mochida, Ryuichiro Yoshie, Hideyuki Tanaka

Proceedings of Fifth International Symposium on Computational Wind Engineering　2010/05
LES analysis of kinetic energy balance in an urban area

Yasuyuki Ishida, Taichi Shirasawa, Akashi Mochida

Proceedings of the Symposium on Computational Fluid Dynamics　D3　(2)　2010
Large Eddy Simulation of Flow and Pressure Fields around Buildings in High Dense Cities -Effects of nonuniformity of building heights on drag force and momentum transport- Peer-reviewed

Yasuyuki Ishida, Yoshinobu Endo, Akashi Mochida, Taichi Shirasawa, Ryuichiro Yoshie, Hideyuki Tanaka

Proceedings of 7th International Conference on Urban Climate　2009/06/29

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Misc. 16

Development of a new human model based on detailed measurements of physiological responses under transient conditions

後藤伴延, NIU Zhuoxi, 石田泰之, 千葉友樹, 天野健太郎, 高木理恵

室内環境学会学術大会講演要旨集(Web)　2023　2023
40547 夏季屋外歩行時における物理環境・人体生理量の同時計測とこれに基づく2-node modelの改良

大場優作, 石田泰之, 小林炎, 石津光, 後藤伴延, 持田灯

環境工学I　(2020)　1163-1166　2020/09
Publisher: 日本建築学会
Evaluation of transpiration rate of tree based on field measurement (Part 8): Optimization of model parameters for stomatal conductance model and prediction of transpiration rate

小林炎, 石津光, 石田泰之, 手代木純, 持田灯

日本建築学会大会学術講演梗概集・建築デザイン発表梗概集(CD-ROM)　2020　2020

ISSN： 1883-9363
Evaluation of transpiration rate of tree based on field measurement (Part 9): Comparison of seasonal variation of transpiration based on multiple survey results

手代木純, 石田泰之, 持田灯

日本建築学会大会学術講演梗概集・建築デザイン発表梗概集(CD-ROM)　2020　2020

ISSN： 1883-9363
Evaluation of transpiration rate of tree based on field measurement (Part 7): Influence of solar radiation, vapor pressure deficit and soil water content on tree transpiration rate

石津光, 小林炎, 石田泰之, 手代木純, 持田灯

日本建築学会大会学術講演梗概集・建築デザイン発表梗概集(CD-ROM)　2020　2020

ISSN： 1883-9363
40362 暑熱環境への適応策検討のための屋外温熱環境と人体生理量の同時測定(その1) 日向・日陰における物理環境条件と立位状態の人体生理量の測定

大場優作, 石田泰之, 後藤伴延, 持田灯

環境工学I　(2019)　775-776　2019/07/20
Publisher: 日本建築学会
Estimation of the amount of transpiration of row trees on the extremely hot day

手代木純, 石田泰之, 持田灯

日本ヒートアイランド学会全国大会　14th　2019
実測に基づく実大高木樹木の蒸散量の評価(その5)長期測定結果に基づくβ法とPenman-Monteith法による樹木蒸発散量と葉温の予測精度の検討

本間実季, 本間実季, 石田泰之, 小林炎, 手代木純, 持田灯

日本建築学会大会学術講演梗概集・建築デザイン発表梗概集(CD-ROM)　2019　2019

ISSN： 1883-9363
40452 暑熱化による健康被害発症リスクに関わる歩行者の生理量予測手法の開発(その3) 人体表面の対流熱伝達率が人体生理量予測精度に与える影響

大場優作, 本間実季, 新井千秋, 石田泰之, 後藤伴延, 持田灯

環境工学I　(2018)　935-936　2018/07/20
Publisher: 日本建築学会
40431 屋外生活空間における都市樹木の最適な樹冠形状の効果検証（その4）最適な樹冠形状における温熱環境面（WBGT,SET*）での実測結果

手代木純, 本間実季, 大場優作, 石田泰之, 新井千秋, 柳雅之, 持田灯

環境工学I　(2018)　893-894　2018/07/20
Publisher: 日本建築学会
屋外歩行者を対象とした人体熱生理モデルの精度検証と実市街地を対象とした都市温暖化適応策の評価—Validation of Thermoregulation Models Applied to Pedestrians and Evaluation on Effects of Adaptation Measures for Urban Warming

大場優作, 本間実季, 新井千秋, 石田泰之, 後藤伴延, 持田灯

学術・技術報告会論文集 = Collection of papers of the conference / 空気調和・衛生工学会東北支部編　7　41-44　2018/03/09
Publisher: 空気調和・衛生工学会東北支部
40358 暑熱化による健康被害発症リスクに関わる歩行者の生理量予測手法の開発(その2) 人間の歩行を考慮した新たな屋外温熱環境評価手法の開発

新井千秋, 長谷川拓真, 石田泰之, 持田灯, 後藤伴延

環境工学I　(2017)　761-762　2017/07/20
Publisher: 日本建築学会
40357 暑熱化による健康被害発症リスクに関わる歩行者の生理量予測手法の開発(その1) 暑熱環境下における環境条件と生理量の同時測定結果と人体熱生理モデルの精度検証

長谷川拓真, 石田泰之, 後藤伴延, 持田灯, 山本ミゲイル

環境工学I　(2017)　759-760　2017/07/20
Publisher: 日本建築学会
40339 実測に基づく実大高木樹木の蒸散量の評価（その3）植栽密度差を踏まえた樹木群とシバの夏期の蒸散量の比較

手代木純, 市林あゆみ, 石田泰之, 持田灯, 柳雅之

環境工学I　(2017)　723-724　2017/07/20
Publisher: 日本建築学会
LES analysis of Urban environment: progress in the field of building environmental engineering over the past 20 years

Akashi Mochida, Sadahide Tominaga, Yasuyuki Ishida

日本風工学会誌　34　(4)　416-425　2009/10

DOI： 10.5359/jawe.34.416 　
Wind Passage

Akachi Mochida, Yasuyuki Ishida

天気　56　(7)　571-572　2009/07/31

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Books and Other Publications 2

髙木秀太事務所白書: The White Paper by TAKAGI SHUTA OFFICE

合同会社髙木秀太事務所

誠文堂新光社　2023/03/13

ISBN: 4416921470
風の事典

真木, 太一, 新野, 宏, 野村, 卓史, 林, 陽生, 山川, 修治

丸善出版　2011/11

ISBN: 9784621084045

Presentations 30

Computational conditions for Large-Eddy Simulation to predict wind pressure acting on building walls with sufficient numerical stability and accuracy

Yu Inaba, Yuta Yamane, Yasuyuki Ishida

9th European-African Conference on Wind Engineering
LCZ (Local Climate Zone) Scheme for Asian Cities, and Recent research on the measurements of the outdoor environment at LBEE, Tohoku University Invited

Yasuyuki Ishida

Seminar Series on Wind Hazard Mitigation and Wind Energy Utilization
Estimation of long-wave radiation emitted in each direction using a 3D small building model by drone-based photogrammetry

Yasuyuki Ishida, Hikaru Kobayashi, Mamiko Fujiyama, Akashi Mochida

The 11th International Conference on Urban Climate
Study on the stomatal conductance model for the prediction of transpiration rate and leaf surface temperature distribution of a single tree on typical summer days based on the result of field measurement

Suzuka Deushi, Yasuyuki Ishida, Yumi Hashimoto, Akashi Mochida

The 11th International Conference on Urban Climate
Spatio-temporal structure of sea breezes based on two Doppler lidars observations and its influence on temperature and humidity near the ground during summer in coastal city Sendai, Japan

Miharu Hamazaki, Yasuyuki Ishida, Maho Onoda, Hiroyuki Watanabe, Hiromi Ueda, Akashi Mochida

The 11th International Conference on Urban Climate
Impact of a single high-rise building on the wind pressure acting on the surrounding low-rise buildings

Yuta Yamane, Shuhei Kamata, Yasuyuki Ishida, Akihito Yoshida, Akashi Mochida

16th International Conference on wind engineering
Urban morphology promoting high breathability and controlling strong winds at the pedestrian level

Akashi Mochida, Yota Ono, Yasuyuki Ishida, Ryutaro Ogihara

16th International Conference on wind engineering
Influence of Land Cover and Morphological Properties of Each LCZ Built Type on Land Surface Temperature in Tokyo and Shanghai

Zheng Wang, Yasuyuki Ishida, Akashi Mochida

The 11th International conference on indoor air quality, ventilation & energy conservation in buildings
洪水・強風発生時に建物ピロティが近隣の市街地に及ぼす影響に関する研究(その2)強風発生時における歩行者空間の高風速発生及び周辺建物の受ける風圧力への影響

石田泰之

日本流体力学会年会　2022/09
ピロティが都市空間の風の流れ、温熱環境、河川氾濫流に及ぼす影響の分析（その1）ピロティが歩行者空間の風環境及び建物の受ける風圧力に及ぼす影響

石田泰之

2022年度日本建築学会大会（北海道）学術講演会　2022/09
市街地の形態操作が着目する市街地とその風下側に位置する市街地の風環境に及ぼす影響の同時評価に関する研究 Invited

石田泰之

第9回複雑熱流体工学研究センターシンポジア　2022/06
市街地形態操作が着目する市街地及びその風下側の換気･通風性能に及ぼす影響の同時評価(その2)同時評価法の提案

石田泰之

日本風工学会年次大会　2022/05
市街地形態が着目する市街地及びその風下側の領域の風環境に及ぼす影響(その10)高層建物の形状変化が着目する市街地のBreathability に及ぼす影響

石田泰之

2021年度日本建築学会大会学術講演会（東海）　2021/09
上空大気の鉛直及び水平速度変動のスペクトル解析及び地表付近の気温へ及ぼす影響の評価

石田泰之

風工学シンポジウム　2020/11
仙台市における温湿度の多点同時測定とドップラーライダーによる上空気流性状の計測（その 4）温湿度及び上空気流性状の時空間分布に基づく仙台市夏季の気候特性の類型化

石田泰之

2020年度日本建築学会大会学術講演会（関東）　2020/09
理想街区モデルおよび実街区を対象とする市街地の粗度立面積密度と歩行者高さの平均的な風通しの関係に関するLES

石田泰之

日本流体力学会年会2019　2019/09
市街地形態が着目する市街地及びその風下側の領域の風環境に及ぼす影響(その4)平衡状態における運動エネルギー散逸率と通風性能の分析

石田泰之

平成31年度日本建築学会大会学術講演会（北陸）　2019/09
エネルギー散逸量に基づいた風環境に係る外部環境負荷に関するLES (その2)市街地形態が全運動エネルギー及び全運動エネルギーの散逸総量に及ぼす影響

石田泰之

平成30年度日本建築学会大会学術講演会（東北）　2018/09
LES on the relationship between geometric parameters of buildings and pedestrian-level wind velocity in the built-up areas

Yasuyuki Ishida

The 7th International Symposium on Computational Wind Engineering 2018　2018/06
Analysis of the structure of kinetic energy transport and dissipation due to the effect of urban roughness

Yasuyuki Ishida

International Workshop on Wind-Related Disaster and Mitigation　2018/03
LES によるエネルギー散逸量の算出とこれに基づく風環境に係る外部環境負荷の評価（その1）周期境界条件における流れ場の駆動方法の違いが運動エネルギー収支構造に及ぼす影響の分析

石田泰之

平成29年度日本建築学会大会学術講演会（中国）　2017/08
都市Canopyモデル開発のためのLES解析-乱流エネルギーの生産に関わる諸量推定法-

石田泰之

第30回数値流体力学シンポジウム　2016/12
LESによる市街地形態の変更が都市空間の運動エネルギー収支とその散逸の総量に及ぼす影響の分析(その3) 着目する市街地の風下側領域への環境負荷の定量評価法の提案

石田泰之

平成23年度日本建築学会大会学術講演会（関東）　2011/08
LES analysis of kinetic energy balance in an urban area

Yasuyuki Ishida

13th International Conference on Wind Engineering　2011/07
LESによる都市空間内部の運動エネルギー収支分析(その2) 運動エネルギー散逸の総和に基づく外部環境負荷の定量的評価法の提案

石田泰之

平成23年度日本風工学会年次研究発表会　2011/04
LES による都市空間内の運動エネルギー収支構造の分析

石田泰之

第24回数値流体力学シンポジウム　2010/12
関東地方における風観測（その２）東京都渋谷区と千葉市における地表面粗度区分

石田泰之

平成22年度日本建築学会大会学術講演会（北陸）　2010/09
市街地形態が地表付近の風通し及び換気効率に与える影響に関する研究 (その1)香港旺角の高密度市街地をモデル化した街区を対象としたSVE3 及びSVE4 の空間分布の分析

石田泰之

平成21年度日本建築学会大会学術講演会（東北）　2009/08
Large Eddy Simulation of Flow and Pressure Fields around Buildings in High Dense Cities -Effects of nonuniformity of building heights on drag force and momentum transport-

Yasuyuki Ishida

The seventh International Conference on Urban Climate　2009/06
LES データを用いた高密度市街地内の運動エネルギー収支分析(その２) 建物高さのバラツキが運動エネルギー収支の鉛直構造に及ぼす影響

石田泰之

平成21年度日本風工学会年次研究発表会　2009/05

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Research Projects 15

急速に進む気候変化に適応するための新たな都市の風環境アセスメント体系の構築

持田灯, 石田泰之

Offer Organization: 日本学術振興会

System: 科学研究費助成事業

Category: 基盤研究(B)

Institution: 東北大学

2024/04 - 2028/03
積乱雲の局所発達を助長する大気混合状態を生じる都市の形態及び排熱条件の解明

石田泰之

Offer Organization: 日本学術振興会

System: 科学研究費助成事業基盤研究(B)

Category: 基盤研究(B)

Institution: 東北大学

2023/04 - 2027/03
Numerical analysis for clarification of settlement landscape focusing on wind environment

Offer Organization: AKITA UNIVERSITY OF ART

Institution: Tohoku University

2024/07 - 2025/02
Development of thermal radiation modules utilizing a drone and change of a system on design of thermal environment

Yasuyuki Ishida, Mamiko Fujiyama, Akashi Mochida

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Research (Exploratory)

Category: Grant-in-Aid for Challenging Research (Exploratory)

Institution: Tohoku University

2021/07 - 2024/03
都市の暑熱化と強風災害の激甚化に適応するための風環境計画理論の統合・再構築

持田灯、石田泰之

Offer Organization: 日本学術振興会

System: 科学研究費助成事業基盤研究(B)

Category: 基盤研究(B)

Institution: 東北大学

2021/04 - 2024/03

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1.高層建物が周囲の建物の風圧力に与える影響に関する風洞実験:高層建物が存在することによりその周囲の低層建物が受ける風圧力の増加に関する風洞実験を実施した。建物を立方体でモデル化した街区（以下、理想街区）のグロス建蔽率がそれぞれ11％、25％、44％の場合に、理想街区中に高層建物が1棟建っているケースについて、各ケース72風向についての実験が完了した。グロス建蔽率25％の理想街区については、高層建物が存在することで風下側に位置する低層建物の受ける負側のピーク圧力を定量的に評価した。 2.平常時の風環境のLES:市街地上空と地表付近の空気交換能力を表す指標であるBreathabilityが高く、地表付近における強風発生を抑制する市街地形態についての知見を得るため、単体の高層建物を含む理想街区、市街地全体に高さの非一様性のある理想街区を対象にLESを実施した。高層建物によって移流による鉛直方向の平均運動エネルギーの輸送が増加し通風性能の向上がみられるが、部分的に高風速域も形成されてしまう。これに対して、市街地全体の高さの非一様性は鉛直方向の乱流拡散によるエネルギーの輸送を増加させ、通風性能の向上を図りつつ、高風速域の形成を抑制することが可能であることを示した。また、仙台市内の実在する街区（以降、実街区）を対象としてLESを実施し、高層建物や建物高さの非一様性が与える影響について分析した。 3.WRFによる風況の統計的性状の将来変化:8月の1か月間を対象に、WRFを用いて現代、及び疑似温暖化手法による将来（2050年代）のメソ（地域）スケール気象解析を行い、台風大型化に伴う風速の統計的性状の将来変化を、ワイブル係数を用いて分析した。2050年は、2008年と比較して低風速側で出現頻度が減少し、高風速側の頻度が増加するという結果を得た。
Practical realization of human body simulation model for predicting body temperature, blood pressure and blood flow rate

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

2020/04 - 2024/03
「風の景観」の流体解析を用いた提示手法の研究

石田泰之

Offer Organization: 公立大学法人秋田公立美術大学

Institution: 東北大学

2023/11 - 2024/02
Proposal of comprehensive evaluation method for the merits and demerits of piloti space for development of urban area adapted to extreme heat, flood, typhoon wind

Institution: Tohoku University

2021/04 - 2023/03
流体解析を用いた「風の景観」の体系化に向けた基礎的研究

石田泰之

Offer Organization: 公立大学法人秋田公立美術大学

Institution: 東北大学

2022/11 - 2023/02
Development of an automatic estimation method for urban morphology as a basis for systematization of urban warming adaptation measures Competitive

Mochida Akashi

Offer Organization: Japan Society for the Promotion of Science

System: Grants-in-Aid for Scientific Research Challenging Research (Exploratory)

Category: Challenging Research (Exploratory)

Institution: Tohoku University

2019/06 - 2022/03

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Based on a morphological analysis of the Tokyo Metropolis, this study proposes a classification scheme for detailed categorization of heterogeneous urban morphology and non-uniform land cover, commonly seen in Asian cities. The effectiveness of the proposed scheme and standards was evaluated by the thermal radiation environment which is mainly defined by the urban morphological parameters such as building density and height, and land cover characteristics. Furthermore, a neural network-based method to predict the long-term thermal radiation environment around buildings was developed. For the neural network, a multi-layer neural network optimized by genetic algorithms and backpropagation algorithms was employed to achieve high prediction accuracy. Additionally, the land surface conditions generated by the urban classification method were incorporated into a mesoscale climate model to predict the regional-scale climate with a more detailed consideration of urban influences.
気候景観における洋上風力発電施設の評価に係る風環境の解析

石田泰之

Offer Organization: 公立大学法人秋田公立美術大学

Institution: 東北大学

2021/06 - 2021/11
Study on the use of kinetic energy resources of the wind above the city as an adaptation measure for Extreme heat environment

Institution: Tohoku University

2020/04 - 2021/03
Observations of the spatial distribution and the fluctuation of wind velocity by two Doppler lidars above the city Competitive

Ishida Yasuyuki

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

2018/04 - 2021/03

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A concurrent measurement of wind velocities above the city using two Doppler lidars, and air temperature and humidity at multiple observation points was conducted in Sendai, a coastal city of Japan. A time series of the spatial distributions of the wind direction, speed, and power spectrum of the fluctuations of the wind were analyzed with a time series of air temperature and humidity for each day. Based on these, the characteristics of urban climate were classified into four types. Evaluated the 3-dimensional structure of wind velocity, air temperature and humidity above the city and their time change by using both measured and numerical simulation values. Quantitatively evaluated the effect of changing the shape of high-rise buildings on the wind environment near the ground, focusing on high-rise buildings as a device that enhances the mixing of air near the ground and that over cities. From this, the effect of high-rise buildings in controlling the transfer was summarized.
Study on the relationship between geometric parameters of buildings and urban ventilation based on the instantaneous wind velocity within the built-up area Competitive

2018/04 - 2019/03
Development of a method for simultaneous evaluating the urban ventilation and the environmental load on downstream areas caused by energy dissipation of total kinetic energy Competitive

2017/04 - 2018/03

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Teaching Experience 18

Joint Lecture on Ecology　Tohoku University
Information, AI, Data Science and Building Environmental Design　Tohoku University
Exercises on Building Information Modeling　Ochanomizu University
Numerical Analysis of Indoor and Outdoor Environment　Tohoku University
Development of Applied Computer System in Architecture 2　Tohoku University Postgraduate
Assessment of Environmental Performance of Buildings　Tohoku University Postgraduate
Building Environmental Design　Tohoku University Undergraduate (specialized)
Urban Environmental Engineering　Tohoku University Undergraduate (specialized)
Building Environmental Engineering Fundamentals　Tohoku University Undergraduate (specialized)
Fundamental Design B　Tohoku University Undergraduate (specialized)
Exercises in Civil Engineering and Architecture Group E　Tohoku University Undergraduate (specialized)
Exercise of Building Thermal Environment and Indoor Air Quality　Hachinohe Institute of Technology
Building Thermal Environment and Indoor Air Quality　Hachinohe Institute of Technology Undergraduate (specialized)
Theoretical Basis of Mathematics and Dynamics in Building Engineering 2　Tohoku University Postgraduate
Introduction to Environmental Science　Tohoku University Undergraduate (specialized)
Sound and Lighting in Environmental Planning　Hachinohe Institute of Technology Undergraduate (specialized)
Exercises of Sound and Lighting in Environmental Planning　Hachinohe Institute of Technology Undergraduate (specialized)
CFD Modeling for Building Environment Design　Tohoku University Postgraduate

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