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Okabayashi Kie
岡林　希依
Okabayashi Kie
岡林　希依
Institutional repository
Graduate School of Engineering　Department of Mechanical Engineering, Assistant Professor

keyword Data science，Machine Learning，Flow Control，Multiphase Flow，Computational Fluid Dynamics，Cavitation，Turbulent Flow

Institutional repository

Research History 3

  1. 2016/10 - Present
    Osaka University Graduate School　Dept. Mechanical Eng.　Assistant Professor

  2. 2011/04 - 2016/09
    Japan Aerospace Exploration Agency　Researcher

  3. 2009/04 - 2011/03
    Japan Society of the Promotion of Science　Research Fellowship for Young Scientists (DC2)

Education 3

  1. Osaka University　Graduate School of Engineering　Department of Mechanical Engineering

    2008/04 - 2011/03

  2. Osaka University　Graduate School of Engineering　Department of Mechanical Engineering

    2007/04 - 2008/03

  3. Osaka University　School of Engineering

    2003/04 - 2007/03

Committee Memberships 6

  1. Symposium on Cavitation　Executive Committee Member　Other

    2023/08 - Present

  2. Turbomachinery Society of Japan　Representative　Academic society

    2022/05 - Present

  3. The Japan Society of Mechanical Engineers　Subcommittee on exploring various functions of shear flow and its application science and technology　Academic society

    2017/05 - Present

  4. Turbomachinery Society of Japan　Subcomittee on accurate prediction of performance and innovative design of turbomachinery　Academic society

    2020/04 - 2024/03

  5. The Japanese Society for Multiphase Flow　Editorial Committee　Academic society

    2019/08 - 2022/08

  6. The Japan Society for Aeronautical and Space Sciences　43rd Annual Meeting, organizer of special session projected by young researchers　Academic society

    2012/04 - 2012/04

Professional Memberships 5

  1. Turbomachinery Society of Japan

  2. The Japan Society of Fluid Mechanics

  3. THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

  4. THE JAPAN SOCIETY OF MECHANICAL ENGINEERS

  5. THE JAPANESE SOCIETY FOR MULTIPHASE FLOW

Research Areas 4

  1. Aerospace, marine, and maritime Engineering / Aerospace engineering / Aerodynamics

  2. Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Fluid engineering / Multiphase Flow

  3. Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Fluid engineering / Turbulent Flow

  4. Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Fluid engineering / Computational Fluid Dynamics

Awards 7

  1. 36th Hatakeyama Research Grant

    Kie Okabayashi　Turbomachinery Society of Japan　2025/05

  2. Young Engineer Award

    Kie Okabayashi　Asian Fluid Machinery Committee (AFMC)　2023/10

  3. Challenge Award

    Kie Okabayashi　Turbomachinery Society of Japan　2023/09

  4. Best Presentation Award

    Toshikazu Noda, Kie Okabayashi　The Japanese Society of Multiphase Flow　2022/08

  5. 15th Asian International Conference on Fluid Machinery, Best Paper Award

    Kie Okabayashi, Wenyang Luo, Takeo Kajishima　Korean Society for Fluid Machinery　2019/09

  6. 学生優秀講演賞

    岡林希依　日本混相流学会　2007/07

  7. 工学賞

    岡林希依　大阪大学　2007/03

Papers 40

  1. The unsteady simulation for turbulent cavitating flow around a hydrofoil at a low angle of attack

    OKABAYASHI Kie, INAOKA Takuya, LUO Wenyang, KAJISHIMA Takeo

    Transactions of the JSME (in Japanese)　Vol. 85　No. 876　p. 1-17　2019/08　Research paper (scientific journal)

    Publisher: 一般社団法人 日本機械学会

  2. Direct numerical simulation of turbulent flow above zigzag riblets

    Okabayashi Kie, Hirai Kenshi, Takeuchi Shintaro, Kajishima Takeo

    AIP ADVANCES　Vol. 8　No. 10　p. 105227-105227　2018/10　Research paper (scientific journal)

  3. Direct numerical simulation for investigation on yaw angle effects on riblets

    Kie Okabayashi

    Journal of Fluid Science and Technology　Vol. 12　No. 1　p. 1-11　2017　Research paper (scientific journal)

    Publisher: Japan Society of Mechanical Engineers

  4. Direct numerical simulation for modification of sinusoidal riblets

    OKABAYASHI Kie

    Journal of Fluid Science and Technology　Vol. 11　No. 3　p. JFST0015-JFST0015　2016

    Publisher: 一般社団法人 日本機械学会

  5. Simple Estimation of Drag-Reducing Performance of Riblet Applied to the Aircraft

    OKABAYASHI Kie, KURITA Mitsuru, IIJIMA Hidetoshi

    AEROSPACE TECHNOLOGY JAPAN, THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES　Vol. 15　No. 0　p. 127-132　2016

    Publisher: 一般社団法人 日本航空宇宙学会

  6. Development of Turbulence Model to Simulate Drag Reducing Effects of Riblets

    Kie OKABAYASHI, Takanori MATSUE, Masahito ASAI

    Journal of the Japan Society for Aeronautical and Space Sciences　Vol. 64　No. 1　p. 41-49 (J-STAGE)-49　2016　Research paper (scientific journal)

    Publisher: THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

  7. Investigation of Interaction between Vortices and Cavitation in a Turbulent Shear Layer

    OHTA Takashi, SAKAI Hiroki, OKABAYASHI Kie, KAJISHIMA Takeo

    JFST　Vol. 6　No. 6　p. 1021-1035　2011

    Publisher: The Japan Society of Mechanical Engineers

  8. Modeling of the Subgrid-Scale Pressure Distribution in Turbulent Mixing Layer

    OKABAYASHI Kie, KAJISHIMA Takeo

    JFST　Vol. 6　No. 1　p. 73-84　2011

    Publisher: The Japan Society of Mechanical Engineers

  9. DNS analysis on turbulence modulation by cavitation

    Kie Okabayashi, Takeo Kajishima

    Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B　Vol. 76　No. 764　p. 570-579　2010　Research paper (scientific journal)

    Publisher: Japan Society of Mechanical Engineers

  10. Generality of rotating partial cavitation in two-dimensional cascades

    Takeo Kajishima, Byung-Jin An, Kie Okabayashi, Takashi Ohta

    Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B　Vol. 75　No. 756　p. 1626-1633　2009　Research paper (scientific journal)

    Publisher: Japan Society of Mechanical Engineers

  11. Interaction between Cavitation and Elementary Vortex in Turbulence

    Kie OKABAYASHI, Takashi OHTA, Takeo KAJISHIMA

    Progress in Multiphase Flow Research　Vol. 3　p. 1-8　2008/06　Research paper (scientific journal)

  12. Multiscale convolutional neural networks for subgrid-scale modeling in large-eddy simulation

    Bahrul Jalaali, Kie Okabayashi

    Physics of Fluids　Vol. 37　No. 6　p. 1-17　2025/06/01　Research paper (scientific journal)

    Publisher: AIP Publishing

  13. Twin experiments for data assimilation of cavitating flow around a hydrofoil

    Shungo Okamura, Kie Okabayashi

    International Journal of Multiphase Flow　Vol. 188　p. 105201-105201　2025/03/08　Research paper (scientific journal)

    Publisher: Elsevier BV

  14. Envelope boundary conditions for the upper surface of two-dimensional canopy interacting with fluid flow

    Shota Akita, Kie Okabayashi, Shintaro Takeuchi

    Microfluidics and Nanofluidics　Vol. 29　No. 7　p. 1-23　2024/12/26　Research paper (scientific journal)

  15. Optimization of fluid control laws through deep reinforcement learning using dynamic mode decomposition as the environment

    Taku Sakamoto, Kie Okabayashi

    AIP Advances　Vol. 14　No. 11　2024/11/01　Research paper (scientific journal)

  16. Estimation of 2D pressure and cavitation fields from sparse pseudo-pressure sensor point data using super-resolution machine learning

    Kosei HINO, Kie OKABAYASHI

    Transactions of the Japanese Society of Mechanical Engineers (in Japanese)　Vol. 90　No. 937　2024/09/25　Research paper (scientific journal)

    Publisher: Japan Society of Mechanical Engineers

  17. Development of a Cavitation Model Tracking the Sheet Cavity Interface and Investigation of its Impact on the Quantitative Accuracy of Hydrofoil Performance

    Shungo OKAMURA, Kie OKABAYASHI

    JAPANESE JOURNAL OF MULTIPHASE FLOW　Vol. 37　No. 2　p. 234-242　2023/06/15　Research paper (scientific journal)

    Publisher: The Japanese Society for Multiphase Flow

  18. Wave propagation induced by a vortex for fibers clamped on the wall

    Shota Akita, Takehiro Fujii, Kie Okabayashi, Shintaro Takeuchi

    Proc. 11th International Conference on Multiphase Flow　No. 780　p. 1-2　2023/04/02　Research paper (international conference proceedings)

  19. Large-eddy Simulation of Cavitating Flow using Both Homogeneous Fluid Model and Interface Tracking Model

    Shungo Okamura, Kie Okabayashi

    Proc. 11th International Conference on Multiphase Flow　No. 400　p. 1-2　2023/04/02　Research paper (international conference proceedings)

  20. Optimization of configuration of corrugated airfoil using deep reinforcement learning and transfer learning

    T. Noda, K. Okabayashi, S. Kimura, S. Takeuchi, T. Kajishima

    AIP Advances　Vol. 13　No. 3　p. 035328-035328　2023/03/01　Research paper (scientific journal)

    Publisher: AIP Publishing

  21. Development the Framework of Data-Driven Cavitation Model using CFD Data

    Toshikazu Noda, Kie Okabayashi

    Japanese Journal of Multiphase Flow　Vol. 37　No. 1　p. 94-102　2023/03　Research paper (scientific journal)

  22. LES Study on the Relationship between Large-scale Turbulence Vortices and Unsteady Cavitation around a Hydrofoil

    Kie Okabayashi, Ayumu Furukawa, Takeshi Otsu, Takeo Kajishima

    Journal of Fluids Engineering　Vol. 145　No. 4　2022/12/16　Research paper (scientific journal)

    Publisher: ASME International

  23. Direct numerical simulation of turbulent flow above riblets under adverse pressure gradient

    Satoshi Ikeda, Kie Okabayashi, Shintaro Takeuchi

    Proc. 12th International Symposium on Turbulence and Shear Flow Phenomena　No. 355　p. 1-5　2022/07　Research paper (international conference proceedings)

  24. Application of Deep Reinforcement Learning and Transfer Learning for Optimization of Geometry Parameters of Corrugated Wing

    Toshikazu Noda, Kie Okabayashi, Shintaro Takeuchi, Takeo Kajishima

    Proc. of AIAA SciTech Forum 2022　No. AIAA-2022-0458　p. 1-11　2022/01　Research paper (international conference proceedings)

  25. Large-eddy Simulation of Cavitating Turbulent Flow around a Clark-Y11.7% Hydrofoil

    Kie Okabayashi, Wenyang Luo, Takeo Kajishima

    Proceeding of 15th Asian International Conference on Fluid Machinery　No. AICFM15-P00193　p. 1-8　2019/09　Research paper (international conference proceedings)

  26. Global Stability Analysis on the Spiral-vortex Mode in the Confined Cavity Flow between Rotating and Stationary Disks

    Kie Okabayashi, Yuki Kodera, Shintaro Takeuchi, Takeo Kajishima, Byungjin An, Motohiko Nohmi, Masashi Obuchi

    Proceeding of ASME - JSME - KSME Joint Fluids Engineering Conference 2019 (AJKFluids)　No. AJKFLUIDS2019-4785　p. 1-10　2019/07　Research paper (international conference proceedings)

  27. Numerical study on the hypersonic boundary-layer receptivity to free-stream disturbance over a flat plate

    Daiki Ishikawa, Kie Okabayashi

    Proc. 12th Asian Computational Fluid Dynamics Conference　No. 0154　p. 1-8　2018/10　Research paper (international conference proceedings)

  28. Drag Reduction Mechanism of 3D Riblets

    Kie Okabayashi

    Proc. Korea-Japan CFD Workshop　p. 222-223　2017/11　Research paper (international conference proceedings)

  29. Numerical simulation of axisymmetric laminar flow in rotor-stator cavity

    Yuki Kodera, Takeo Kajishima, Shintaro Takeuchi, Kie Okabayashi

    Proc. 9th JSME-KSME Thermal and Fluids Engineering Conference (TFEC9)　No. TFEC9-1306　p. 1-5　2017/10　Research paper (international conference proceedings)

  30. Direct numerical simulation on modification of streamwise vortices in turbulent flow above zigzag riblets

    Kie Okabayashi, Kenshi Hirai, Shintaro Takeuchi, Takeo Kajishima

    Proc. 9th JSME-KSME Thermal and Fluids Engineering Conference (TFEC9)　No. TFEC9-1273　p. 1-5　2017/10　Research paper (international conference proceedings)

  31. Parametric Analysis of Flow over Sinusoidal Riblets

    Okabayashi, K, Yamada, Y, Asai, M

    Proc. of 9th Int. Symp. on Turbulence and Shear Flow Phenomena (TSFP-9)　No. 237　p. 1-6　2015　Research paper (international conference proceedings)

  32. RANS Modeling for Flows on Riblets based on Experimental Data

    Okabayashi, K, Matsue, T, Asai, M, Naito, H

    Proc. of 29th Int. Conf. on the Aeronautical Sciences (ICAS)　No. 440　p. 1-9　2014　Research paper (international conference proceedings)

  33. On the Optimization of Riblet's Configuration

    Okabayashi, K, Ikeda, T

    Proc. of Turbulence, Heat and Mass Transfer 7　p. 1029-1032　2012　Research paper (international conference proceedings)

  34. Influence of Flow Rate Fluctuation on the Rotating Cavitation Flows through Two-dimensional Cascade

    An, B-J, Okabayashi, K, Kajishima, T

    Proc. of 2010 Int. Conf. on Pumps and Fans　No. E018　p. 1-6　2010　Research paper (international conference proceedings)

  35. Subgrid-scale Modeling of Cavitating Turbulent Flow in LES

    Okabayashi, K, Kajishima, T

    Proc. of Int. Conf. on Multiphase Flow 2010　No. 114　p. 1-8　2010　Research paper (international conference proceedings)

  36. Investigation of Turbulent Modulation by Cavitation for Subgrid-scale Modeling in LES

    Okabayashi, K, Kajishima, T

    Proc. of 7th Int. Symp. on Cavitation (CAV2009)　No. 89　p. 1-11　2009　Research paper (international conference proceedings)

  37. DNS and LES of Cavitating Turbulent Flow

    Okabayashi, K, Kajishima, T

    Proc. of 6th Int. Symp. on Turbulence and Shear Flow Phenomena (TSFP-6)　Vol. 2　p. 978-983　2009　Research paper (international conference proceedings)

  38. On the Subgrid Scale Modeling of Cavitating Turbulence Considering Fine-scale Elementary Vortices

    Okabayashi, K, Kajishima, T, Ohta, T

    Proc. of WIMRC 2nd Int. Cavitation Forum 2008　p. 97-101　2008　Research paper (international conference proceedings)

  39. Direct Numerical Simulation of Interaction between Cavitation and Turbulence Vortices

    Okabayashi, K, Ohta, T, Kajishima, T

    Proc. of 8th World Congress on Comp. Mech. (WCCM8) and 5th European Congress on Comp. Methods in Applied Sci. and Eng. (ECCOMAS 2008)　No. a2294　2008　Research paper (international conference proceedings)

  40. Influence of Cavitation on Turbulent Separated Flow

    Kajishima, T, Ohta, T, Sakai, H, Okabayashi, K

    Proc. of 5th Int. Symp. on Turbulence and Shear Flow Phenomena (TSFP-5)　Vol. 2　p. 829-834　2007　Research paper (international conference proceedings)

Misc. 54

  1. Improvement of configuration and flow control of fluid machinery using deep reinforcement learning

    Kie Okabayashi

    Science of Machine　Vol. 77　No. 4　p. 243-252　2025/04　Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)

  2. Twin Experiments for Data Assimilation of Cavitating Flow around a Clark-Y11.7% Hydrofoil

    Kie Okabayashi

    4th Asian Workshop on Hydraulic Machinery　p. 34-35　2025/01/23　Research paper, summary (international conference)

  3. Development of Data-Driven Cavitation Model and Its Training Dataset

    Kie Okabayashi

    Turbomachinery　Vol. 53　No. 1　p. 19-25　2025/01/10　Article, review, commentary, editorial, etc. (scientific journal)

  4. Data-driven cavitation model and their training datasets

    Kie Okabayashi

    Vol. 14　p. 53-56　2024/07　Article, review, commentary, editorial, etc. (bulletin of university, research institution)

  5. Twin Experiment to Construct a Data Assimilation System for Cavitating Flow

    Shungo Okamura, Kie Okabayashi

    Proc. of 21st Symposium on Cavitation　No. S2-4　2023/12/07　Research paper, summary (national, other academic conference)

  6. Extension of Two-dimensional Cavitating Flow Field around an Airfoil to Three-dimensional Flow Field using Super-resolution Machine Learning

    Kie Okabayashi

    Proc. of 21st Symposium on Cavitation　No. T1-3　p. 1-6　2023/12/07　Research paper, summary (national, other academic conference)

  7. Investigation of the Numerical Stability of the Data-driven Cavitation Model

    Yuina Motozono, Kie Okabayashi

    Proc. of 21st Symposium on Cavitation　No. T1-2　p. 1-6　2023/12/07　Research paper, summary (national, other academic conference)

  8. キャビテーション乱流のCFDデータベースを用いたデータ駆動型キャビテーションモデルの開発に関する研究

    Kie Okabayashi

    CYBERMEDIA HPC JOURNAL　No. 13　p. 63-66　2023/09　Rapid communication, short report, research note, etc. (bulletin of university, research institution)

  9. Deep Reinforcement Learning for the Optimization of the Sensor Position of V-control

    Yonosuke Ofuchi, Kie Okabayashi

    Abstract of ASME-JSME-KSME Joint Fluids Engineering Conference 2023　No. 1-10-2-06　p. 1-1　2023/07/09　Research paper, summary (international conference)

  10. Speed-up of the Optimization of Fluid Control Laws by using Dynamic Mode Decomposition in the Environment of Deep Reinforcement Learning

    Taku Sakamoto, Kie Okabayashi

    Abstract of ASME-JSME-KSME Joint Fluids Engineering Conference 2023　No. 2-10-1-05　p. 1-1　2023/07/09　Research paper, summary (international conference)

  11. Numerical Simulation on the Separated Turbulent Flow around a Hydrofoil with Cavitation LES Model Considering the Inception from SGS Vortices

    Kie Okabayashi

    Nagare　Vol. 42　No. 2　p. 87-90　2023/04/25　Article, review, commentary, editorial, etc. (scientific journal)

  12. Introduction of dynamic mode decomposition to the lift fluctuation control optimization of flow around a cylinder using deep reinforcement learning

    Taku Sakamoto, Kie Okabayashi

    Proc. of 36th Computational Fluid Dynamics Symposium　No. D05-3　p. 1-5　2022/12/14　Research paper, summary (national, other academic conference)

  13. Application of Deep Reinforcement Learning for the Further Optimization of the V-control

    Yonosuke Ofuchi, Kie Okabayashi

    Proc. of 36th Computational Fluid Dynamics Symposium　No. D05-2　p. 1-4　2022/12/14　Research paper, summary (national, other academic conference)

  14. Mechanism of propagation of collective deformation behavior caused by interaction between fibers and flow

    Shota Akita, Takehiro Fujii, Kie Okabayashi, Shintaro Takeuchi

    Proc. of 36th Computational Fluid Dynamics Symposium　No. D03-5　p. 1-2　2022/12/14　Research paper, summary (national, other academic conference)

  15. Improvement of Cavitation LES Model Considering the Inception from SGS Vortices

    Kie Okabayashi

    Proc. of 36th Computational Fluid Dynamics Symposium　No. D02-1　p. 1-4　2022/12/14　Research paper, summary (national, other academic conference)

  16. CFD Education in Fluid Engineering Laboratory of Osaka University

    Kie Okabayashi

    Turbomachinery　Vol. 50　No. 9　p. 540-546　2022/09　Article, review, commentary, editorial, etc. (scientific journal)

  17. Development of Cavitation Model Simulating Streamlines around the Sheet Cavity by Interface Tracking

    Shungo Okamura, Kie Okabayashi

    Proc. of Symposium on Multiphase Flow 2022　No. E0011　p. 1-2　2022/08　Research paper, summary (national, other academic conference)

  18. Preliminary Study on Learning Mode of Data-driven Cavitation Model

    Toshikazu Noda, Kie Okabayashi

    Proc. of Symposium on Multiphase Flow 2022　No. E0008　p. 1-2　2022/08　Research paper, summary (national, other academic conference)

  19. Development of Optimization Method of Airfoil Shape and Turbulence Control by Combining Deep Reinforcement Learning and CFD

    Kie Okabayashi, Toshikazu Noda, Yonosuke Ofuchi

    p. 199-204　2022/05　Research paper, summary (national, other academic conference)

  20. Unsteady Simulation of the Cavitating Turbulent Flow around a Hydrofoil Considering Turbulence Elementary Vortices

    Kie Okabayashi, Takeo Kajishima

    Proc. of 20th Symposium on Cavitation　No. T1-7　p. 1-6　2021/12　Research paper, summary (national, other academic conference)

  21. ミウラ折り型ジグザグリブレットの実用のための研究

    Kie Okabayashi

    CYBERMEDIA HPC JOURNAL　No. 11　p. 47-51　2021/11　Rapid communication, short report, research note, etc. (bulletin of university, research institution)

  22. Turbulence Analysis Method for Cavitating Turbulent Flow

    Kie Okabayashi

    Turbomachinery　Vol. 49　No. 11　p. 656-666　2021/11　Article, review, commentary, editorial, etc. (scientific journal)

  23. Unsteady Simulation of Flow around a Hydrofoil using Cavitation Model based on Streamlines around the Sheet Cavity

    Kie Okabayashi, Takeo Kajishima

    Proc. of Symposium on Multiphase Flow 2021　No. E0115　p. 1-2　2021/08　Research paper, summary (national, other academic conference)

  24. Development of Miura-fold-type Zigzag Riblet for Friction Drag Reduction

    Kie Okabayashi

    Journal of Japan Society of Fluid Mechanics　Vol. 40　No. 4　p. 264-270　2021/08　Article, review, commentary, editorial, etc. (scientific journal)

  25. Application of Deep Reinforcement Learning for Optimization of Geometry Parameters of Corrugated Wing

    Toshikazu Noda, Kie Okabayashi, Shintaro Takeuchi, Takeo Kajishima

    No. 1B05　p. 1-4　2021/06　Research paper, summary (national, other academic conference)

  26. Optimization of geometry parameters of an airfoil aiming the improvement of the lift-drag ratio using deep reinforcement learning

    Toshikazu Noda, Kie Okabayashi, Shintaro Takeuchi, Takeo Kajishima

    Proc. of 34th Symposium on Computational Fluid Dynamics (CFD34)　No. F11-3　p. 1-5　2020/12　Research paper, summary (national, other academic conference)

  27. Consideration on the parameter convergence in global stability analysis of the confined cavity flow between rotating and stationary disks

    Yuta Akagi, Kie Okabayashi, Shintaro Takeuchi, Takeo Kajishima, Byungjin An, Motohiko Nohmi, Masashi Obuchi

    Proc. of 34th Symposium on Computational Fluid Dynamics (CFD34)　No. A06-4　p. 1-9　2020/12　Research paper, summary (national, other academic conference)

  28. Development of the cavitation model based on streamlines around the sheet cavity

    Ayumu Furukawa, Kie Okabayashi, Takeo Kajishima

    Proc. of 34th Symposium on Computational Fluid Dynamics (CFD34)　No. B03-2　p. 1-4　2020/12　Research paper, summary (national, other academic conference)

  29. Global Stability Analysis on High Mach Number Flow above a Flat Plate including Acoustic Disturbance

    Kie Okabayashi

    Fluid Dynamics Conference/ Aerospace Numerical Simulation Symposium 2020 Online　No. 1C10　p. 1-5　2020/09　Research paper, summary (national, other academic conference)

  30. Numerical Study for the Improvement of the Reproducibility of the Hydrofoil Performance in Unsteady Simulation of Cavitating Turbulent Flow

    Kie Okabayashi, Ayumu Furukawa, Takeshi Otsu, Takeo Kajishima

    Proc. of Symposium on Multiphase Flow 2020　No. 0136　p. 1-2　2020/08　Research paper, summary (national, other academic conference)

  31. Global stability analysis of Mach 4.5 flow above a flat plate including acoustic disturbance

    Daiki Ishikawa, Kie Okabayashi

    Proc. of Symposium on Shock Waves in Japan　No. 046　p. 1-10　2020/03　Research paper, summary (national, other academic conference)

  32. Global stability analysis of a Mach 4.5 flow over a flat plate

    Daiki Ishikawa, Kie Okabayashi

    Proc. of 33rd Symposium on Computational Fluid Dynamics (CFD33)　No. A10-5　p. 1-5　2019/12　Research paper, summary (national, other academic conference)

  33. Generation cycle of the spanwise vortices in LES of the flow around a hydrofoil

    Wenyang Luo, Kie Okabayashi, Takeo Kajishima

    Proc. of 33rd Symposium on Computational Fluid Dynamics (CFD33)　No. D07-1　p. 1-5　2019/12

  34. LES of the flow around a hydrofoil considering the cavity inception from SGS vortices

    Takeshi Otsu, Kie Okabayashi, Takeo Kajishima

    Proc. of 33rd Symposium on Computational Fluid Dynamics (CFD33)　No. D07-2　p. 1-4　2019/12

  35. Large-eddy simulation on the flow around the Clark-Y11.7% hydrofoil at angle of attack of 20 degrees

    Takeshi Otsu, Kie Okabayashi, Takeo Kajishima

    Proceeding of Annual Meeting of Japan Society of Fluid Mechanics　p. 1-3　2019/09

  36. Large‐eddy Simulation of Cavitating Turbulent Flow around a Hydrofoil in a High Angle of Attack

    Kie Okabayashi, Wenyang Luo, Takeshi Otsu, Takeo Kajishima

    混相流シンポジウム講演論文集(Web)　Vol. 2019　2019/08　Research paper, summary (national, other academic conference)

  37. Global stability analysis of con ned cavity

    Yuki Kodera, Kie Okabayashi, Shintaro Takeuchi, Takeo Kajishima, Byungjin An, Motohiko Nohmi, Masashi Obuchi

    32nd Symposium on Computational Fluid Dynamics　Vol. D11-2　p. 1-6　2018/12

  38. Generating Mechanism of Spanwise Vortices in Cavitating Turbulent Flow around a Hydrofoil

    Wenyang Luo, Kie Okabayashi, Takeo Kajishima

    32nd Symposium on Computational Fluid Dynamics　Vol. A11-3　p. 1-5　2018/12

  39. Direct numerical simulation on drag reduction of spatially-developing wall turbulence above riblets

    Eigo Otoi, Kie Okabayashi

    32nd Symposium on Computational Fluid Dynamics　Vol. D08-2　p. 1-5　2018/12

  40. Observation of Intermittent Spanwise Vortices in Cavitating Turbulent Flow around a Hydrofoil

    Kie Okabayashi, Takeo Kajishima

    Proc. 19th Symposium on Cavitation　p. 1-6　2018/10

  41. Numerical Analysis of a Conned Cavity

    Yuki Kodera, Kie Okabayashi, Shintaro Takeuchi, Takeo Kajishima, Byungjin An, Motohiko Nohmi, Masashi Obuchi

    Vol. 158　p. 1-3　2018/09

  42. Detailed Investigation on Vortices in Turbulent Flow above Zigzag Riblets

    Kie Okabayashi

    Vol. 3A08　2018/07

  43. Numerical Study on the Boundary-layer Receptivity to Hypersonic Free-stream Turbulence

    Daiki Ishikawa, Kie Okabayashi, Shintaro Takeuchi, Takeo Kajishima

    Symposium on Shock Waves in Japan　No. 049　p. 1-5　2018/03　Research paper, summary (national, other academic conference)

  44. Numerical analysis on stability of attack angle of corrugated wing

    Shugo Kimura, Shintaro Takeuchi, Kie Okabayashi, Takeo Kajishima

    Proc. of 31st Symposium on computational fluid dynamics　No. D02-1　2017/12　Research paper, summary (national, other academic conference)

  45. Numerical analysis on drag reduction with three dimensional zigzag wall pattern

    Kenshi Hirai, Kie Okabayashi, Shintaro Takeuchi, Takeo Kajishima

    Proc. of 30th Symposium on Computational Fluid Dynamics (CFD30)　No. D03-4　p. 1-4　2016/12　Research paper, summary (national, other academic conference)

  46. 再突入カプセルにおけるRCS干渉場の予測

    浜本滋, 藤井啓介, 三木肇, 岡林希依, 高間良樹

    宇宙航空研究開発機構特別資料 JAXA-SP-(Web)　No. 16-003　2016/09/30

  47. リブレット上の流れの数値シミュレーション

    村上哲, 郭東潤, 岡林希依, 内藤弘士

    宇宙航空研究開発機構特別資料 JAXA-SP-(Web)　No. 16-003　2016/09/30

  48. Application of Computerized Tomography onto set of regular schlieren images taken at JAXA Hypersonic/Supersonic Tunnels

    藤井啓介, 平林則明, 小山忠勇, 津田尚一, 中川宗敬, 板橋幸広, 中村晃祥, 岡林希依, 高間良樹

    宇宙航空研究開発機構研究開発報告 JAXA-RR-　Vol. 14　No. 14-011　p. 40P-36　2015/03/27

    Publisher: 宇宙航空研究開発機構

  49. Numerical Analysis for Effectiveness Evaluation of Riblet applied to Aircraft

    p. 1-9　2013/04/18

    Publisher: 日本航空宇宙学会

  50. 0306 Experiments on the turbulent drag reduction using wavy riblets

    INASAWA Ayumu, AOKI Yoshiyuki, ASAI Masahito, NISHIO Yu, OKABAYASHI Kie, KOSHIOKA Yasuhiro

    The Proceedings of the Fluids engineering conference　Vol. 2013　No. 0　p. _0306-01_-_0306-02_　2013

    Publisher: The Japan Society of Mechanical Engineers

  51. Effects of the Student Presentation Award and the Support for Students to Attend International Conferences

    ICHIKAWA Naoki

    混相流 = Japanese journal of multiphase flow　Vol. 26　No. 3　p. 292-301　2012/09/15

  52. 1029 Turbulent Modulation by Cavitation in a Mixing Layer

    OKABAYASHI Kie, KAJISHIMA Takeo, OHTA Takashi

    Vol. 2009　No. 84　p. "10-29"　2009/03/16

    Publisher: The Japan Society of Mechanical Engineers

  53. 1115 Influence of flow rate vibration on the cavitating flows through two-dimensional cascade

    AN Byung-jin, OKABAYASHI Kie, KAJISHIMA Takeo

    Fluids engineering conference ...　p. 371-372　2009

    Publisher: The Japan Society of Mechanical Engineers

  54. Analysis of Unsteady Cavitating Flows in Two-Dimensional Cascades

    AN Byung-Jin, KAJISHIMA Takeo, OKABAYASHI Kie, OHTA Takashi

    Vol. 2008　p. 139-139　2008

    Publisher: 日本流体力学会

Presentations 41

  1. Twin Experiments for Data Assimilation of Cavitating Flow around a Hydrofoil Assuming PIV data as the Pseudo-measurement Data

    Shungo Okamura, Kie Okabayashi

    11th Int. Symp. on Turbulence, Heat and Mass Transfer　2025/07/22

  2. A priori and a posteriori tests of data-driven cavitation model

    Toshikazu Noda, Yuina Motozono, Kie Okabayashi

    1st International Symposium on AI and Fluid Mechanics　2025/05/28

  3. Optimization of fluid control laws through deep reinforcement learning using dynamic mode decomposition as the environment

    Kie Okabayashi

    3rd Workshop on Data-Driven Fluid Dynamics　2025/03/17

  4. Estimation of 2D pressure field of a cavitating flow from pseudo-sensor point data using super-resolution machine learning

    Kosei Hino, Kie Okabayashi

    38th CFD Symposium, No. OS4-2-4-02　2024/12/12

  5. Extension of two-dimensional cavitation flow around a wing to three-dimensional flow using super-resolution machine learning with the mass conservation as a constraint

    Ryosei Kojima, Kie Okabayashi

    38th CFD Symposium, No. OS4-2-1-01　2024/12/11

  6. Boundary conditions for the envelope of canopy interacting with two dimensional laminar flow

    Shota Akita, Kie Okabayashi, Shintaro Takeuchi

    77th APS Annual Meeting of the Division of Fluid Dynamics　2024/11/25

  7. The multiscale-based data-driven subgrid-scale model with physics constraints for enhanced prediction of unresolved scales in turbulent flow

    Bahrul Jalaali, Kie Okabayashi

    77th APS Annual Meeting of the Division of Fluid Dynamics　2024/11/26

  8. A priori test of a data-driven SGS model considering the multiscale nature of turbulent flows

    Bahrul Jalaali, Kie Okabayashi

    12th International Conference on Computational Fluid Dynamics　2024/07/16

  9. Development of data-driven cavitation model and its training dataset

    Kie Okabayashi

    Cavitation Workshop　2023/09/20

  10. Development of data-driven cavitation model using CFD database of cavitating turbulent flow

    Kie Okabayashi

    Cyber HPC Symposium 2023　2023/03/06

  11. Preliminary Study on Learning and Test Modes of Data-driven Cavitation Model

    Kie Okabayashi

    2nd US-Japan Workshop on Data-Driven Fluid Dynamics　2022/09/07

  12. DNS on Effectiveness of Miura-fold-type Zigzag Riblet

    Kie Okabayashi, Shintaro Takeuchi, Takeo Kajishima

    2021 Asia-Pacific International Symposium on Aerospace Technology (APISAT2021)　2021/11/15

  13. Optimization of Geometry Parameters of Corrugated Wing by Deep Reinforcement Learning

    Kie Okabayashi, Toshikazu Noda

    2021/03/23

  14. Application of Deep Reinforcement Learning to Optimization of Airfoil Configuration

    Kie Okabayashi

    2020/11/13

  15. Drag reduction mechanisms of 3D Riblets and its application to the aircrafts

    Kie Okabayashi

    The 2020 AIAA SciTech Forum　2020/01/07

  16. Large-eddy simulation for cavitating turbulent flow around a clark-Y11.7% hydrofoil

    Kie Okabayashi

    US-Japan Workshop on Bridging Fluid Mechanics and Data Science　2018/03/26

  17. FINE計測システム設計の妥当性確認風洞試験

    古賀星吾, 栗田充, 飯島秀俊, 岡林希依, 西沢啓, 高橋英美, 遠藤史歩子

    第54回飛行機シンポジウム講演集　2016

  18. 表面摩擦抵抗低減コーティング技術の飛行実証FINE

    栗田充, 西沢啓, 岡林希依, 古賀星吾, KWAK Dongyoun, 中北和之, 中右介

    第54回飛行機シンポジウム講演集　2016

  19. リブレットによる航空機の空力抵抗低減技術研究

    内藤弘士, 越岡康弘, 西沢啓, 岡林希依

    第52回航空シンポジウム　2014/10

  20. 波状リブレットによる抵抗低減効果改善メカニズムの解明に関する数値解析

    山田祐樹, 岡林希依, 淺井雅人

    第27回数値流体力学シンポジウム講演論文集　2013/12/18

  21. リブレットの抵抗低減効果を模擬する乱流モデルの構築

    末永宇識, 岡林希依, 淺井雅人

    第51回飛行機シンポジウム講演集(CD-ROM)　2013/11

  22. 0306 Experiments on the turbulent drag reduction using wavy riblets

    INASAWA Ayumu, AOKI Yoshiyuki, ASAI Masahito, NISHIO Yu, OKABAYASHI Kie, KOSHIOKA Yasuhiro

    Fluids engineering conference ...　2013/11/09

  23. 波状リブレット形状改善に関する数値解析

    山田祐樹, 岡林希依, 淺井雅人

    日本流体力学会年会2013, No. 122　2013/09/13

  24. リブレット航空機適用時の有効性評価に関する数値解析

    末永宇識, 岡林希依, 淺井雅人

    第44期日本航空宇宙学会年会講演会講演集　2013/04

  25. リブレット面を有するチャネル乱流の直接数値シミュレーション

    岡林希依, 池田友明

    第25回数値流体力学シンポジウム講演論文集　2011/12

  26. 航空機の環境負荷低減に向けた空力技術による取り組み

    越岡康弘, 渡辺重哉, 黒滝卓司, 西沢啓, 跡部隆, 満尾和徳, 池田友明, 岡林希依, 坂上博隆, 飯島由美, 守田克彰

    第2回航空プログラムシンポジウム前刷集　2011/09/08

  27. 準線形近似したRayleigh-Plessetの式による管内気泡流の数値解析

    丸谷康二, 岡林希依, 梶島岳夫

    第15回キャビテーションに関するシンポジウム, No. A3-1　2010

  28. 乱流渦からの初生を考慮したキャビテーションLESモデル開発に関する研究

    岡林希依, 梶島岳夫

    第15回キャビテーションに関するシンポジウム, No. OS2-6　2010

  29. 二次元翼列における流量変動に対する応答解析によるキャビテーション発生予測法の検討

    安炳辰, 岡林希依, 梶島岳夫

    第15回キャビテーションに関するシンポジウム, No. OS2-5　2010

  30. 二次元翼列における流量変動に対する旋回キャビテーション流れ場の応答特性

    AN Byung‐jin, 岡林希依, 梶島岳夫

    日本混相流学会年会講演会講演論文集　2010/07

  31. SGS圧力変動を考慮したキャビテーションLESモデルの考察

    岡林希依, 梶島岳夫

    日本混相流学会年会講演会2010講演論文集　2010/07

  32. キャビテーション気泡発達挙動の線形モデルによる再現性の検討

    丸谷康二, 岡林希依, 大森健史, 梶島岳夫

    日本機械学会 関西支部 平成21年度学生員卒業研究発表講演会, No. 1106　2010/03/15

  33. DNSデータベースに基づいたSGS圧力変動に関する解析

    岡林希依, 梶島岳夫

    第25回生研TSFDシンポジウム　2010

  34. Development of Turbulence Model for Cavitating Flows

    Okabayashi, K, Kajishima, T

    2nd Int. Workshops on Advances in Comp. Mech. (IWACOM2)　2010

  35. キャビテーションによる混合層乱流の変調

    岡林希依, 梶島岳夫, 太田貴士

    日本機械学会関西支部定時総会講演会講演論文集　2009/03/16

  36. キャビテーションと乱流の相互作用

    岡林希依, 梶島岳夫, 太田貴士

    第14回キャビテーションに関するシンポジウム, セッションA2, pp. 1-4　2009

  37. Direct Numerical Simulation of Interaction between Cavitation and Turbulence in a Mixing Layer

    Okabayashi, K, Ohta, T, Kajishima, T

    Japan-Russia Workshop on Study of Hydro-dynamical Instability, Turbulence and Complex Flows by Using Advanced Technologies of Modeling on Super-computers　2008/11/18

  38. Analysis of Unsteady Cavitating Flows in Two-Dimensional Cascades

    AN Byung-Jin, KAJISHIMA Takeo, OKABAYASHI Kie, OHTA Takashi

    Proceedings, ... meeting of Japan Society of Fluid Mechanics　2008/09/04

  39. 乱流混合層に生じるキャビテーションの直接数値シミュレーション

    岡林希依, 梶島岳夫, 太田貴士

    第22回数値流体力学シンポジウム講演論文集　2008

  40. キャビテーションと乱流要素渦の相互作用

    岡林希依, 太田貴士, 梶島岳夫

    日本混相流学会年会講演会講演論文集　2007/06

  41. DNS of Vortex Cavitations in Turbulent Separated Layer

    Kajishima, T, Ohta, T, Sakai, H, Okabayashi, K

    Korea-Japan CFD workshop in 2006 Autumn Meeting of Korean Society of Comp. Fluids Eng.　2006

Industrial Property Rights 3

  1. Riblet structure and object

    Kie Okabayashi, Yasuhiro Koshioka, Akira Nishizawa, Mitsuru Kurita, Hidetoshi Iijima

    特許US10882605B2

    出願日:2017/09/08

    登録日:2021/01/05

  2. Drag Reduction Device

    Byungjin An, Motohiko Nohmi, Masashi Obuchi, Takeo Kajishima, Shintaro Takeuchi, Kie Okabayashi

    出願日:2019/04/18

  3. リブレット構造及び物体

    岡林希依, 越岡康弘, 西沢啓, 栗田充, 飯島秀俊

    出願日:2016/03/03

Institutional Repository 5

Content Published in the University of Osaka Institutional Repository (OUKA)

  1. Twin experiments for data assimilation of cavitating flow around a hydrofoil

    Okamura Shungo, Okabayashi Kie

    International Journal of Multiphase Flow　Vol. 188　2025/03/08

  2. Envelope boundary conditions for the upper surface of two-dimensional canopy interacting with fluid flow

    Akita Shota, Okabayashi Kie, Takeuchi Shintaro

    Microfluidics and Nanofluidics　Vol. 29　No. 7　2025/02/01

  3. データ駆動型キャビテーションモデルとその学習データセットの構築に関する研究

    岡林 希依

    High Performance Computer Journal　Vol. 14　p. 53-56　2024/07

  4. キャビテーション乱流のCFDデータベースを用いたデータ駆動型キャビテーションモデルの開発に関する研究

    岡林 希依

    High Performance Computer Journal　Vol. 13　p. 63-66　2023/09

  5. ミウラ折り型ジグザグリブレットの実用のための研究

    岡林 希依

    High Performance Computer Journal　Vol. 11　p. 47-51　2021/11