Updated on 2023/09/08

写真a

 
YOSHIMURA Ryoichi
 
Organization
Institute for Space-Earth Environmental Research Center for Orbital and Suborbital Research Designated assistant professor
Title
Designated assistant professor

Degree 3

  1. Doctor of Engineering （ 2023.3   Tohoku University ） 

  2. Master of Engineering （ 2020.3   Tohoku University ） 

  3. Bachelor of Engineering （ 2018.3   Tohoku University ） 

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Research Interests 3

  1. Aeronautical Meteorology

  2. Computational Fluid Dynamics

  3. Data Assimilation

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Research Areas 2

  1. Frontier Technology (Aerospace Engineering, Marine and Maritime Engineering) / Aerospace engineering

  2. Natural Science / Atmospheric and hydrospheric sciences

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Research History 3

  1. Nagoya University   Institute for Space and Earth Environmental Research   Project Assitant Professor

    2023.4

  2. Japan Society for the Promotion of Science   Research Fellow (DC1)

    2020.4 - 2023.3

  3. Mitsubishi Aircraft Corporation   Project Management Department   Intern

    2018.11 - 2019.3

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Education 4

  1. Tohoku University   Graduate School of Engineering   Department of Aerospace Engineering

    2020.3 - 2023.4

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    Notes： Doctral course

  2. Tohoku University   Graduate School of Engineering   Department of Aerospace Engineering

    2018.4 - 2020.3

  3. University of Washington   Mechanical Engineering Visiting Student

    2018.10

  4. Tohoku University   Faculty of Engineering   Department of Mechanical and Aerospace Engineering

    2014.4 - 2018.3

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Professional Memberships 1

  1. 日本気象学会

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Awards 2

  1. Best Presentation Award

    2022.11   19th International Conference on Flow Dynamics (ICFD 2022)   Investigation on Aircraft Turbulence Using Large Eddy and Flight Simulations

    P. Schittenhelm, R. Yoshimura, J. Ito, S. Obayashi

  2. JSASS Student Award

    2018.3   The Japan Society for Aeronautical and Space Sciences (JSASS)  

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Papers 5

  1. Clear Air Turbulence Resolved by Numerical Weather Prediction Model Validated by Onboard and Virtual Flight Data Reviewed

    R. Yoshimura, J. Ito, P. A. Schittenhelm, K. Suzuki, A. Yakeno, S. Obayashi

    Geophysical Research Letters   Vol. 50 ( 12 )   2023.6

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    Authorship：Lead author   Publishing type：Research paper (scientific journal)   Publisher：American Geophysical Union (AGU)  

    DOI： 10.1029/2022gl101286

  2. Large-Eddy Simulation of Wake Vortices at Tokyo/Haneda International Airport Reviewed

    Takashi Misaka, Ryoichi Yoshimura, Shigeru Obayashi, Ryota Kikuchi

    Journal of Aircraft     page： 1 - 13   2023.4

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    Publishing type：Research paper (scientific journal)   Publisher：American Institute of Aeronautics and Astronautics (AIAA)  

    A large-eddy simulation (LES) of wake vortices in ground effect is conducted under the influence of airport hangar buildings to investigate the airport-specific behavior of wake vortices. We consider a landing at Tokyo/Haneda International Airport in Japan, where a wake of hangar buildings covers a landing path and touchdown zone under particular wind conditions. We combine an LES code and the Weather Research and Forecasting numerical weather prediction model to retrieve realistic wind conditions around the airport. The behavior of wake vortices is then investigated in the retrieved wind field using the adaptive mesh capability of the LES code for capturing the tiny vortex core of the wake vortex. At the crosswind on the order of a vortex descent speed, the hangar wake reduces the crosswind near the runway, enhancing the windward vortex’s rebound. The effect is alleviated by doubling the crosswind to twice the vortex descent speed. On the other hand, the wind fluctuations caused by the hangar buildings only slightly affect the wake vortex decay.

    DOI： 10.2514/1.c037319

  3. Large-Eddy and Flight Simulations of a Clear-Air Turbulence Event over Tokyo on 16 December 2014 Reviewed

    R. Yoshimura, K. Suzuki, J. Ito, R. Kikuchi, A. Yakeno, S. Obayashi

    Journal of Applied Meteorology and Climatology     2022.5

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    Authorship：Lead author   Publishing type：Research paper (scientific journal)  

    DOI： 10.1175/JAMC-D-21-0071.1

  4. Numerical Investigation of Hangar Wake Effect on an Aircraft for Safe Landing Invited

      Vol. 39   page： 80 - 83   2020.4

  5. Application of observability Gramian to targeted observation in WRF data assimilation Reviewed

    Ryoichi Yoshimura, Aiko Yakeno, Takashi Misaka, Shigeru Obayashi

    Tellus A: Dynamic Meteorology and Oceanography   Vol. 72 ( 1 ) page： 1697602 - 1697602   2020.1

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    Authorship：Lead author   Publishing type：Research paper (scientific journal)   Publisher：Stockholm University Press  

    DOI： 10.1080/16000870.2019.1697602

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MISC 1

  1. Atmospheric Turbulence Visualization for Aviation Safety Using 3D Immersive VR System

    Ryota KIKUCHI, Shu IWABUCHI, Ryoichi YOSHIMURA, Aiko YAKENO, Shigeru OBAYASHI

    Journal of the Visualization Society of Japan   Vol. 41 ( 162 ) page： 21 - 22   2021

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    Publisher：The Visualization Society of Japan  

    DOI： 10.3154/jvs.41.162_21

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Presentations 17

  1. 3-dimensional Visualization of Flight Simulation in Clear Air Turbulence

    Ryoichi Yoshimura, Junshi Ito, Aiko Yakeno, Shigeru Obayashi

    VR Study Meeting  2023.7.19 

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    Event date： 2023.7

    Presentation type：Oral presentation (general)  

  2. ライダ観測データ同化を用いた乱気流数値計算手法の開発

    吉村 僚一, 焼野 藍子, 菊地 亮太, 三坂 孝志, 大林 茂

    JpGU-AGU Joint Meeting 2020 

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    Event date： 2020.5

    Presentation type：Poster presentation  

  3. 2014年12月16 日に発生した晴天乱気流事例のLES解析

    吉村僚一, 鈴木健斗, 焼野藍子, 大林茂, 菊地亮太, 伊藤純至

    第22回 非静力学モデルに関するワークショップ  2020.11.11 

  4. 観測感度情報を用いた局所気象データ同化における観測地点の検討

    吉村 僚一, 三坂 孝志, 焼野 藍子, 大林 茂, 中村 昌道

    第31回 計算力学講演会  2018.11 

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    Presentation type：Oral presentation (general)  

  5. Numerical Simulation of Clear Air Turbulence Based on Onboard LIDAR Data Assimilation

    2019.11 

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    Presentation type：Oral presentation (general)  

  6. Economic Estimation, Technology Issues, and Operation of Air Taxi in Japan

    2019.4 

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    Presentation type：Oral presentation (general)  

  7. 冬季の関東上空で発生する乱気流の高解像数値 計算および旅客機フライトデータを用いた検証

    吉村 僚一, 伊藤 純至, 焼野 藍子, 大林 茂

    日本地球惑星科学連合(JpGU) 2023年大会  2023.5.26 

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    Presentation type：Oral presentation (general)  

  8. 冬季の南関東中下層で発生する晴天乱気流の大規模数値シミュレーション及び飛行機の揺動評価

    吉村僚一, 伊藤純至, 鈴木健斗, Patrick AntonioSchittenhelm, 焼野藍子, 大林 茂

    第16回航空気象研究会  2022.2.4 

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    Presentation type：Symposium, workshop panel (public)  

  9. 冬季の南関東で発生する晴天乱気流の高解像シミュレーションおよび飛行中の旅客機への影響解析

    吉村僚一, 伊藤 純至, 鈴木, 健斗, Patrick Antonio Schittenhelm, 焼野 藍子, 大林茂

    「富岳」成果創出加速プログラム 2021年度成果発表会  2022.3.11 

  10. WRF-3DVARデータ同化及び観測地点感度解析を用いた風力発電所の高精度風況予測

    吉村僚一, 三坂孝志, 大林茂, 中村昌道

    日本気象学会2018年度春季大会  2018.5.17 

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    Presentation type：Oral presentation (general)  

  11. Transition of Atmospheric Shear Flow Investigated by Sensitivity Analysis

    Yoshimura, R, Yakeno, A, Pier, B, Alizard, F, Obayashi, S

    The 19th International Conference on Flow Dynamics (ICFD2022)  2022.11 

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    Presentation type：Oral presentation (general)  

  12. Global Sensitivity Explaining Atmospheric Shear Layer Transition

    Yoshimura, R, Yakeno, A, Ito, J, Obayashi, S

    75th Annual Meeting of the APS Division of Fluid Dynamics  2022.11 

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    Presentation type：Poster presentation  

  13. Direct global stability of atmospheric shear flow that causes aircraft turbulence

    Yoshimura, R, Yakeno, A, Ito, J, Obayashi, S

    Twelfth International Symposium on Turbulence and Shear Flow Phenomena (TSFP12)  2022.7 

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    Presentation type：Oral presentation (general)  

  14. Development of Numerical Method for Clear Air Turbulence by Using LIDAR Data Assimilation

    R. Yoshimura, A. Yakeno, T. Misaka, R. Kikuchi, S. Iwabuchi, S. Obayashi

    2019.11 

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    Presentation type：Poster presentation  

  15. Data Assimilation for Clear Air Turbulence by Upstream LIDAR Observation

    Yoshimura, R, Yakeno, A, Obayashi, S, Kikuchi, R, Misaka, T

    AIAA Aviation  2020.6 

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    Presentation type：Oral presentation (general)  

  16. Case Analysis and Large Eddy Simulation of Clear-Air Turbulence Encountered North of Tokyo, Japan, on 16 December 2014

    Yoshimura, R, Suzuki, K, Yakeno, A, Obayashi, S, Kikuchi, R

    American Meteorological Society 101st Annual Meeting  2021.1 

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    Presentation type：Poster presentation  

  17. 2020年12月30日に発生した乱気流事例のasucaによるLES解析およびフライトシミュレーション

    吉村僚一, 伊藤純至, 鈴木健斗, Patrick Antonio Schittenhelm, 焼野藍子, 大林茂

    第23回非静力学モデルに関するワークショップ(NHM2021)  2021.10.28 

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Research Project for Joint Research, Competitive Funding, etc. 1

  1. Gust Load Alleviation Technology Using LIDAR Data Assimilation and Optimal Flight Control

    Grant number：20J21567  2020.4 - 2023.3

    Grants-in-Aid for Scientific Research Grant-in-Aid for JSPS Fellows  Grant-in-Aid for JSPS Fellows

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    Grant amount：\2500000 （ Direct Cost: \2500000 ）

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Social Contribution 1

  1. データ同化の基礎と手法および工学分野への応用

    Role(s)：Lecturer

    株式会社R&D支援センター  2022.9

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Media Coverage 2

  1. Supercomputer used to simulate winds that cause clear air turbulence (Press Release)

    AAAS  EurekAlert!  https://www.eurekalert.org/news-releases/995117  2023.7

  2. 航空機の見えざる脅威「エアポケット」見えた！ 東北大などがスパコン「富岳」で乱気流の再現に成功 Newspaper, magazine

    河北新報社  河北新報  2023.7

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