Kawahara Genta

カワハラゲンタ | Kawahara Genta

Affiliation and department：
Job title： Professor

Research field (3)： Fluid engineering , Thermal engineering , Mathematical physics and basic theory

Research keywords (5)： Turbulent heat transfer , Vortex Dynamics , Flow Instability , Transition to Turbulence , Turbulence

Research theme for competitive and other funds (26)：

2022 - 2025 Ultimate states of turbulent heat transfer
2018 - 2021 Elucidation and control of subcritical transition to turbulence using homotopy to supercriticality
2013 - 2018 Elucidation and control of high-Reynolds-number turbulence using invariant solutions
2014 - 2017 Bifurcation structure and boundary crisis in wall-bounded flows
2014 - 2017 Theoretical prediction of subcritical transition to turbulence using homoclinic orbits

2012 - 2015 Statistics and dynamics of precession-driven turbulence of non-Newtonian fluids

2011 - 2013 Dissimilar heat transfer enhancement in porous channel turbulence

2010 - 2012 Elucidation and control of turbulence-driven secondary flow in a rectangular duct using nonlinear traveling-wave solutions

2007 - 2009 Elucidation and control of coherent structures and large-scale turbulence structures based on saddle solutions

2006 - 2009 Study on the relation between the multipleness of the solutions of the Navier-Stokes equations and the phenomena in turbulence transition

2005 - 2007 Accurate Analysis of Turbulence Dynamics using Unstable Periodic Flow

2004 - 2006 壁近傍乱流の解明と制御-サドル解による新たなアプローチ

2003 - 2005 Theoretical investigation on laminar-turbulent transition of flows through a rectangular duct

2002 - 2004 Statistics of stretching of fluid lines and surfaces, and turbulent mixing

2001 - 2003 サドル状定常流の安定化による壁乱流制御

1999 - 2002 Effects of vortical structures in a multi-phase flow on the thermal and mass transfer

2001 - 流れの非線形不安定性と解の分岐

1998 - 2000 Self-sustaining mechanisms of near-wall turbulence

1999 - 乱流中の不安定平衡解と周期解

1998 - 乱流中の秩序構造の解明と制御

1996 - 1997 Simulation models for unsteady dispersed multiphase flows

1997 - 回転剪断乱流の秩序構造

1996 - 渦運動力学の理論解析

1995 - 1995 三次元LDVによる矩形管内乱流統計量の高精度測定とそのデータベース化に関する研究

1994 - 1995 Alternative Control of Fluctuation Frequency in the Wake of a Rectangulay Cylinder near the Critical Shape

1992 - 1992 中間レイノルズ数領域における物後流非定常放出渦の特異性乙側壁の影響

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Papers (84)：

Julius Rhoan T. Lustro, Yudai Shimizu, Genta Kawahara. Homoclinic bifurcation and switching of edge state in plane Couette flow. Chaos: An Interdisciplinary Journal of Nonlinear Science. 2023. 33. 6. 063112
Shingo Motoki, Genta Kawahara, Masaki Shimizu. Steady thermal convection representing the ultimate scaling. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 2022. 380. 2225. 20210037
Shingo Motoki, Kentaro Tsugawa, Masaki Shimizu, Genta Kawahara. The ultimate state of turbulent permeable-channel flow. Journal of Fluid Mechanics. 2022. 931. R3
Eiichi Sasaki, Genta Kawahara, Javier Jiménez. Bifurcation structure of unstable periodic orbits in plane Couette flow with the Smagorinsky model. Physical Review Fluids. 2021. 6. 8
Shingo Motoki, Genta Kawahara, Masaki Shimizu. Multi-scale steady solution for Rayleigh-Bénard convection. Journal of Fluid Mechanics. 2021. 914. A14

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MISC (204)：

Y. Fukumoto, G. Kawahara, M. Shimizu, Y. Tsuji, F. Waleffe, M. Yamada. RIMS Research Project: Fluid Dynamics of Near-Wall Turbulence. Fluid Dynamics Research. 2019. 51
Shingo Motoki, Genta Kawahara, Masaki Shimizu. Multiscale three-dimensional steady solutions in Rayleigh-Bénard convection. 11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019. 2019
Akira Kubo, Genta Kawahara, Masaki Shimizu. Physical mechanism of dissimilar heat transfer enhancement by vortex tube in plane Couette flow. 11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019. 2019
The onset of thermal convection in horizontal plane Poiseuille turbulence. 2017. 36. 2. 79-82
KANESATO Seiji, ISHIDA Hideshi, OGI Hirotsugu, KAWAHARA Genta. M1009 An accurate heat-conduction-mode analysis for arbitrary-shape materials. 2016. 2016. 91. 367-367

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Books (8)：

伝熱
日本伝熱学会 2022
物理科学,この1年 2022
丸善出版 2022 ISBN:9784621306864
事例で学ぶ数学活用法
朝倉書店 2015
数理科学
サイエンス社 2015
Ten Chapters in Turbulence
Cambridge University Press 2012

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Lectures and oral presentations (53)：

Super-ultimate behaviour of turbulent thermal convection
(2nd International Symposium on Advances in Aerodynamics 2023)
Ultimate heat transfer in wall-bounded convective and sheared turbulence
(The 6th Symposium on Fluid-Structure-Sound Interactions and Control 2023)
Invariant solutions representing extreme behaviour in turbulence
(10th International Congress on Industrial and Applied Mathematics 2023)
Ultimate states of wall-bounded convective and sheared turbulence
(University of Melbourne Seminar 2023)
Characterisation of multiscale turbulence in terms of invariant solutions
(Monash University Seminar 2023)

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Education (3)：

- 1994 Osaka University
- 1989 Osaka University Graduate School of Engineering Science
- 1987 Osaka University School of Engineering Science Direct Affiliates

Professional career (1)：

博士(工学) (大阪大学)

Work history (11)：

2023/04 - 現在 Osaka University
2023/04 - 現在 Osaka University The Museum of Osaka University
2005/10 - 現在 Osaka University Graduate School of Engineering Science
2017/08 - 2023/03 Osaka University
2017/04 - 2017/08 大阪大学総長特命補佐

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Committee career (6)：

2023/01 - 現在 Fluid Dynamics Research (Institute of Physics Publishing) Editor-in-Chief
2018 - 現在 Journal of Fluid Mechanics (Cambridge University Press) Associate Editor
2022/03 - 2022/12 Fluid Dynamics Research (Institute of Physics Publishing) Associate Editor
2017/08 - 2021/07 大阪地方裁判所委員会委員
2014 - 2016 ながれ(日本流体力学会) 編集委員長

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Awards (6)：

2020 - 日本機械学会流体工学部門賞
2008 - 日本機械学会流体工学部門一般表彰(フロンティア表彰)
2007 - 日本流体力学会論文賞 "Periodic motion embedded in plane Couette turbulence: regeneration cycle and burst"
2003 - 日本流体力学会竜門賞 "Periodic motion embedded in plane Couette turbulence: regeneration cycle and burst"
1996 - 日本機械学会賞 (論文) 「正方形断面管路内乱流におけるバースト現象 (乱流壁面摩擦応力の発生機構)」

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Association Membership(s) (8)：

日本混相流学会 , 日本航空宇宙学会 , 日本流体力学会 , 日本機械学会 , American Physical Society , European Mechanics Society , 日本工学アカデミー , 日本伝熱学会

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