JAXA Supercomputer System Annual Report April 2018-March 2019 Report Number: R18EG3108 Subject Category: Research and Development PDF Responsible Representative: Koji Yamanaka, Director, Research Unit I, Research and Development Directorate Contact Information: Hiroshi Kato(kato.hiroshi@jaxa.jp) Members: Hiroshi Kato, Noriyuki Ohi, Yoshihiro Kasai, Daichi Obinata, Seiji Katagiri, Masaya Nakano Abstract This study aims to develop the reanalysis system for upper atmospheric density to improve the satellite orbit prediction accuracy. Reference URL N/A Reasons for using JSS2 In order to realize atmospheric density reanalysis,・・・<<read more>>
JAXA Supercomputer System Annual Report April 2018-March 2019 Report Number: R18EDA201N03 Subject Category: Aeronautical Technology PDF Responsible Representative: Takashi Aoyama, Aeronautical Technology Directorate, Numerical Simulation Research Unit Contact Information: Takashi Takahashi(takahashi.takashi@jaxa.jp) Members: Kan Ohkubo, Yuya Ohmichi, Takashi Takahashi, Masashi Kanamori, Kento Yamada, Tomoaki Ikeda, Keita Nakamoto, Kenichi Kubota, Hiroki Tsujimura Abstract The purpose of this research is to obtain the simulaiton technology to analyze phenomana relating with multi-physics such as acoustic fluid dynamics and multi-phase flows. Reference URL N/A Reasons・・・<<read more>>
JAXA Supercomputer System Annual Report April 2018-March 2019 Report Number: R18EACA42 Subject Category: JSS2 Inter-University Research PDF Responsible Representative: Shinji Shimojo, Director, Cybermedia Center, Osaka University Contact Information: Shinji Shimojo(shimojo@cmc.osaka-u.ac.jp) Members: Shinji Shimojo, Keichi Takahashi Abstract Conventional post-processing of CFD simulations was achieved by saving the entire simulation output on a parallel file system and then processing the output. However, this approach is becoming increasingly challenging due to the limitations in storage size and IO bandwidth. Therefore, data staging, where・・・<<read more>>
JAXA Supercomputer System Annual Report April 2018-March 2019 Report Number: R18EACA37 Subject Category: JSS2 Inter-University Research PDF Responsible Representative: Soshi Kawai, Associate Professor, Tohoku University Contact Information: Sayako Ishitsuka(ishitsuka@cfd.mech.tohoku.ac.jp) Members: Sayako Ishitsuka, Ryo Hirai, Soshi Kawai Abstract The first purpose in this study is to investigate the detailed mechanisms of the flow separation control with vortex-generator (VG) by using large eddy simulation (LES) of compressible turbulent boundary layer flows. The second purpose is to verify the predictability of near-wall turbulence・・・<<read more>>
JAXA Supercomputer System Annual Report April 2018-March 2019 Report Number: R18EACA31 Subject Category: JSS2 Inter-University Research PDF Responsible Representative: Soshi Kawai, Associate Professor, Tohoku University Contact Information: Ryo Hirai(hirai@cfd.mech.tohoku.ac.jp) Members: Soshi Kawai, Kosuke Totani Abstract In this study, we first analyze compressible thermal turbulent boundary layers on a flat plate including the heat flux such as cooling/heating from the wall surface using LES, and then we aim to construct reliable wall modeling in LES which can evaluate the effects of・・・<<read more>>
