JAXA Supercomputer System Annual Report April 2020-March 2021 Report Number: R20EACA39 Subject Category: JSS Inter-University Research PDF Responsible Representative: Masanobu Inubushi, Assistant Professor, Graduate School of Engineering Science, Osaka University Contact Information: Masanobu Inubushi(inubushi@me.es.osaka-u.ac.jp) Members: Masanobu Inubushi, Susumu Goto, Mikito Konishi, Daiki Watanabe, Kensuke Nakatani Abstract Turbulence models play important roles in the aerospace science and technology, such as flows around aircrafts and of planetary atmospheres. Recently, they are developing rapidly empowered by machine learning methods (Duraisamy, Iaccarino, and Xiao,・・・<<read more>>
JAXA Supercomputer System Annual Report April 2020-March 2021 Report Number: R20EACA38 Subject Category: JSS Inter-University Research PDF Responsible Representative: Hiroyuki Asada, Depatment of Aerospace Engineering, Tohoku University Contact Information: Hiroyuki Asada(h.asada@tohoku.ac.jp) Members: Hiroyuki Asada Abstract The main objective of this study is to develop a solver based on the discontinuous Galerkin (DG) method to realize high fidelity large eddy simulation (LES) of high Reynolds number flows around complicated geometries Reference URL N/A Reasons and benefits of using JAXA Supercomputer System・・・<<read more>>
JAXA Supercomputer System Annual Report April 2020-March 2021 Report Number: R20EACA37 Subject Category: JSS Inter-University Research PDF Responsible Representative: Soshi Kawai, Professor, Department of Aerospace Engineering, Tohoku University Contact Information: Hiroyuki Asada(h.asada@tohoku.ac.jp) Members: Soshi Kawai, Ryo Kamogawa, Hiroyuki Asada, Aya Aihara Abstract To accurately simulate turbulent flows with separation and reattachment using wall-modeled large-eddy simulation (LES), non-equilibrium effects, such as the effects of the pressure gradient, should be incorporated in the wall model. However, the existing non-equilibrium wall-models require solving・・・<<read more>>
JAXA Supercomputer System Annual Report April 2020-March 2021 Report Number: R20EACA31 Subject Category: JSS Inter-University Research PDF Responsible Representative: Soshi Kawai, Professor, Tohoku University Contact Information: Ryo Hirai(ryo.hirai.q7@dc.tohoku.ac.jp) Members: Soshi Kawai, Yoshiharu Tamaki, Ryo Hirai Abstract In this study, near-wall turbulent statistics and structures of compressible turbulent boundary layers on heated and cooled wall are investigated. To evaluate the contributions of local Reynolds number changes within boundary layers caused by wall temperatures to wall turbulence, numerical simulations of a fluid・・・<<read more>>
JAXA Supercomputer System Annual Report April 2020-March 2021 Report Number: R20EACA26 Subject Category: JSS Inter-University Research PDF Responsible Representative: Kengo Asada, Assistant Professor, Department of Information and Computer Technology, Faculty of Engineering, Tokyo University of Science Contact Information: Kengo Asada(asada@rs.tus.ac.jp) Members: Kengo Asada, Takuto Ogawa Abstract The project develops flow control technic by using dielectric barrier discharge (DBD) plasma actuator to establish high efficient and robust vehicle systems such as rockets, aircrafts, and motor vehicles. We propose and demonstrate feedback・・・<<read more>>
