Masaki Shimizu

Profile Information

Affiliation: 大学院基礎工学研究科, 大阪大学

Researcher number: 20550304
J-GLOBAL ID: 202001017057967559
researchmap Member ID: R000012139

Research Areas

Education

Papers

Steady thermal convection representing the ultimate scaling

Shingo Motoki, Genta Kawahara, Masaki Shimizu

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 380(2225), Jun 13, 2022 Peer-reviewed
Efficient reinforcement learning with partial observables for fluid flow control

Akira Kubo, Masaki Shimizu

Physical Review E, Jun 8, 2022 Peer-reviewedCorresponding author
The ultimate state of turbulent permeable-channel flow

Shingo Motoki, Kentaro Tsugawa, Masaki Shimizu, Genta Kawahara

Journal of Fluid Mechanics, 931, Jan 25, 2022 Peer-reviewed
Ultimate heat transfer in ‘wall-bounded’ convective turbulence

Shingo Motoki, Koki Kawano, Masaki Shimizu, Genta Kawahara

Proceedings of 25th International Congress of Theoretical and Applied Mechanics, 599, Aug, 2021 Peer-reviewed
Ultimate heat transfer in turbulent Poiseuille flow between permeable walls

Kenta Inada, Kentaro Tsugawa, Shingo Motoki, Masaki Shimizu, Genta Kawahara

Proceedings of 25th International Congress of Theoretical and Applied Mechanics, 134, Aug, 2021 Peer-reviewed
Onset of sustained turbulence in channel flow and plane Couette flow

Masaki Shimizu, Paul Manneville

The 25th International Congress of Theoretical and Applied Mechanics, Aug, 2021 Peer-reviewedLead authorCorresponding author
Ultimate heat transfer in `wall-bounded' convective turbulence

Koki Kawano, Shingo Motoki, Masaki Shimizu, Genta Kawahara

May, 2021 Peer-reviewed
Multi-scale steady solution for Rayleigh-Bénard convection

Shingo Motoki, Genta Kawahara, Masaki Shimizu

Journal of Fluid Mechanics, 914, May, 2021 Peer-reviewedLast author
Dissimilar heat transfer enhancement by introduction of a vortex tube in plane Couette flow

A Kubo, G Kawahara, M Shimizu

Fluid Dynamics Research, 53(1) 015511, Feb, 2021 Peer-reviewedLast author
Efficient reinforcement learning with partially observable for fluid flow control

Akira Kubo, Masaki Shimizu

arXiv.org, arXiv:2012.04138, Dec, 2020 Last authorCorresponding author
Transitional Channel Flow: A Minimal Stochastic Model

Paul Manneville, Masaki Shimizu

Entropy, 22(12) 1348-1348, Nov 29, 2020 Peer-reviewedLast author
Reinforcement Learning for Optimal Flow Control

KUBO Akira, NARIKAWA Kosuke, SHIMIZU Masaki

Journal of The Society of Instrument and Control Engineers, 59(8) 565-570, 2020 Peer-reviewed
Bifurcations to turbulence in transitional channel flow

Masaki Shimizu, Paul Manneville

Physical Review Fluids, Nov 22, 2019 Peer-reviewed
Subcritical transition to turbulence in wall-bounded flows: the case of plane Poiseuille flow

Paul Manneville, Masaki Shimizu

Apr 7, 2019 Peer-reviewed
The onset of transient turbulence in minimal plane Couette flow

Julius Rhoan T. Lustro, Genta Kawahara, Lennaert van Veen, Masaki Shimizu, Hiroshi Kokubu

Journal of Fluid Mechanics, 862, Mar 10, 2019 Peer-reviewed
Exponential growth of lifetime of localized turbulence with its extent in channel flow

Masaki Shimizu, Takahiro Kanazawa, Genta Kawahara

Fluid Dynamics Research, 51, Jan 17, 2019 Peer-reviewedInvited
Maximal heat transfer between two parallel plates

Shingo Motoki, Genta Kawahara, Masaki Shimizu

Journal of Fluid Mechanics, 851, Sep 25, 2018 Peer-reviewed
Construction of low-dimensional system reproducing low-Reynolds-number turbulence by machine learning

Masaki Shimizu, Genta Kawahara

Mar 22, 2018 Peer-reviewed
Optimal heat transfer enhancement in plane Couette flow

Shingo Motoki, Genta Kawahara, Masaki Shimizu

Feb 11, 2017 Peer-reviewed
21pBU-5 Dimension reduction method for simulation of turbulent flow using machine learning

Shimizu Masaki, Kawahara Genta

Meeting Abstracts of the Physical Society of Japan, 71 3062-3062, 2016

Misc.

RIMS Research Project: Fluid Dynamics of Near-Wall Turbulence

Y. Fukumoto, G. Kawahara, M. Shimizu, Y. Tsuji, F. Waleffe, M. Yamada

Fluid Dynamics Research, 51, Jan 1, 2019
Multiscale three-dimensional steady solutions in Rayleigh–Bénard convection

Shingo Motoki, Genta Kawahara, Masaki Shimizu

11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019, Jan 1, 2019
Physical mechanism of dissimilar heat transfer enhancement by vortex tube in plane Couette flow

Akira Kubo, Genta Kawahara, Masaki Shimizu

11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019, Jan 1, 2019
The onset of thermal convection in horizontal plane Poiseuille turbulence

36(2) 79-82, Apr, 2017
Onset condition for chaotic reversals in thermal convection(<Special Review>Selected Researches in Annual Meeting 2015)

Kentaro CHO, Masaki SHIMIZU, Genta KAWAHARA, Graduate School of Engineering Science Osaka University, Graduate School of Engineering Science Osaka University, Graduate School of Engineering Science Osaka University

34(6) 409-411, Dec 25, 2015
1511 Structural dependence of lifetime of localized turbulence in plane channel flow

KANAZAWA Takahiro, SHIMIZU Masaki, KAWAHARA Genta

Fluids engineering conference ..., 2015 "1511-1"-"1511-3", Nov 7, 2015
J0550203 Onset of chaotic reversals in thermal convection

CHO Kentaro, SHIMIZU Masaki, KAWAHARA Genta

Mechanical Engineering Congress, Japan, 2015 "J0550203-1"-"J0550203-4", Sep 13, 2015
J0550202 The onset of thermal convection in wall-bounded turbulent shear flows

WATANABE Daiki, KAWAHARA Genta, SHIMIZU Masaki

Mechanical Engineering Congress, Japan, 2015 "J0550202-1"-"J0550202-5", Sep 13, 2015
0804 Appearance and transition of turbulent spots on the plane Couette flow

SASAKI Eiichi, SHIMIZU Masaki, KAWAHARA Genta

Fluids engineering conference ..., 2014 "0804-1"-"0804-2", Oct 25, 2014
0801 Transition to turbulence in plane channel flow

KANAZAWA Takahiro, SHIMIZU Masaki, KAWAHARA Genta

Fluids engineering conference ..., 2014 "0801-1"-"0801-2", Oct 25, 2014
J0570204 Maximization of dissimilarity between momentum and heat transfer

Motoki Shingo, SHIMIZU Masaki, KAWAHARA Genta

Mechanical Engineering Congress, Japan, 2014 "J0570204-1"-"J0570204-5", Sep 7, 2014
0506 Direct numerical simulation of turbulent channel flow at high Reynolds number

Shimizu Masaki, Arako Hiro, Goto Susumu, Kawahara Genta

Fluids engineering conference ..., 2013 "0506-01"-"0506-02", Nov 9, 2013
0509 An edge state and relaminarization in transitional pipe flow

ONISHI Naoto, MIYAJI Kosuke, SHIMIZU Masaki, KAWAHARA Genta

Fluids engineering conference ..., 2013 "0509-01"-"0509-03", Nov 9, 2013
0504 An edge state in transitional square-duct flow

MIYAJI Kosuke, ONISHI Naoto, SHIMIZU Masaki, KAWAHARA Genta

Fluids engineering conference ..., 2013 "0504-01"-"0504-03", Nov 9, 2013
J057014 Critical Reynolds number in channel flow

SHIMIZU Masaki, ARAKO Hiro, KANAZAWA Takahiro, KAWAHARA Genta

Mechanical Engineering Congress, Japan, 2013 "J057014-1"-"J057014-3", Sep 8, 2013
0118 The splitting of a turbulent puff in pipe flow

SHIMIZU Masaki, MANNEVILE Paul, DUGUET Yohann, KAWAHARA Genta

Fluids engineering conference ..., 2012 39-40, Nov 16, 2012
J054023 Turbulence structures and secondary flow in a square duct

Kawahara G., Nakatsuji, Shimizu, Uhlmann M., Pinelli A.

Mechanical Engineering Congress, Japan, 2012 "J054023-1"-"J054023-5", Sep 9, 2012
118 Dynamics and energy transfer in periodic motion representing statistics of isotropic

YASUDA Tatsuya, KAWAHARA Genta, KIDA Shigeo, VAN VEEN Lennaert, SHIMIZU Masaki

2012(87) "1-43", Mar 16, 2012
318 A turbulent puff in a horizontal square duct under stable temperature stratification

OTSUKI Takeyuki, SEKIYAMA Kazuhide, SHIMIZU Masaki, KAWAHARA Genta

2011(86) "3-18", Mar 19, 2011
302 Spatially localized turbulence structures in a rectangular duct

WAKABAYASHI Hiroki, SEKIMOTO Atsushi, SHIMIZU Masaki, UHLMANN Markus, KAWAHARA Genta

2011(86) "3-2", Mar 19, 2011

Research Projects

The ultimate state in turbulent heat transfer - mechanism and demonstration

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Japan Society for the Promotion of Science, Apr, 2022 - Mar, 2025
Elucidation and control of subcritical transition to turbulence using homotopy to supercriticality

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Japan Society for the Promotion of Science, Apr, 2018 - Mar, 2021

Kawahara Genta
High-precision turbulent modeling by machine learning

Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), Japan Society for the Promotion of Science, Apr, 2017 - Mar, 2020

Shimizu Masaki
Elucidation and control of high-Reynolds-number turbulence using invariant solutions

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (A), Japan Society for the Promotion of Science, Apr, 2013 - Mar, 2018

Kawahara Genta
Bifurcation structure and boundary crisis in wall-bounded flows

Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), Japan Society for the Promotion of Science, Apr, 2014 - Mar, 2017

Shimizu Masaki, KAWAHARA Genta, Manneville Paul, Duguet Yohann
Theoretical prediction of subcritical transition to turbulence using homoclinic orbits

Grants-in-Aid for Scientific Research, Grant-in-Aid for Challenging Exploratory Research, Japan Society for the Promotion of Science, Apr, 2014 - Mar, 2017

Kawahara Genta
Fundamental Properties of Flows in a Precessing Sphere

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Japan Society for the Promotion of Science, Apr, 2012 - Mar, 2016

KIDA Shigeo, GOTO Susumu, SIMIZU Masaki
Statistics and dynamics of precession-driven turbulence of non-Newtonian fluids

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Japan Society for the Promotion of Science, Apr, 2012 - Mar, 2015

GOTO Susumu, KAWAHARA Genta, SHIMIZU Masaki, NAKAHARA Akio

Industrial Property Rights

特願2023 080371 リカレントニューラルネットワークシステム、プログラム、情報処理方法、情報処理装置及び学習方法

清水雅樹, 木村直人

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