JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23EACA53 Subject Category: JSS Inter-University Research PDF Responsible Representative: Naofumi Ohnishi, Professor, Tohoku University Contact Information: Yasuhito Okano, Tohoku University(yasuhito.okano.p4@dc.tohoku.ac.jp) Members: Naofumi Ohnishi, Yasuhito Okano, Hiroki Sakamoto Abstract Critical issues for designing a reentry capsule are mainly the prediction of aerodynamic heating in hypersonic flows and dynamic instability in transonic flows. In hypersonic flows, the heating rate can be increased due to the transition from the laminar to turbulence at・・・<<read more>>
JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23EACA51 Subject Category: JSS Inter-University Research PDF Responsible Representative: Shoko Miyake, Associate Professor, National Institute of Technology (KOSEN), Ibaraki College Contact Information: Shoko Miyake(s.miyake@gifu-nct.ac.jp) Members: Shoko Miyake Abstract We reveal the solar modulation of the galactic cosmic ray that is the relationship between the solar activity and the variation of the flux of low-energy particles, performing the numerical calculation of the cosmic-ray propagation in the heliosphere and the magnetosphere. Reference・・・<<read more>>
JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23EACA49 Subject Category: JSS Inter-University Research PDF Responsible Representative: Taku Nonomura, Professor, Nagoya University Contact Information: Taku Nonomura, Nagoya University(taku.nonomura@mae.nagoya-u.ac.jp) Members: Taku Nonomura, Takayuki Nagata Abstract A large-eddy simulation (LES) of the compressible flow around the plate with Reynolds number O (10^3) -O (10^4) is performed. The compressibility effects on the laminar flow separation bubble formed around the leading edge of the flat plate and turbulent transition are investigated. The・・・<<read more>>
JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23EACA47 Subject Category: JSS Inter-University Research PDF Responsible Representative: Takashi Matsuno, Associate Professor, Tottori University Contact Information: Takashi Matsuno(matsuno@tottori-u.ac.jp) Members: Rikiya Hata, Nana Hasegawa, Masahiro Kanazaki, Seiichiro Morizawa, Takashi Matsuno, Taisei Nishimura Abstract Plasma actuators (PAs) are flow control devices that use discharged plasma to generate wall jets from smooth surfaces. In recent years, a method of generating a distribution of body force on a surface by using a large・・・<<read more>>
JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23EACA46 Subject Category: JSS Inter-University Research PDF Responsible Representative: Kiori Obuse, Associate Professor, Okayama University Contact Information: Kiori Obuse(obuse@okayama-u.ac.jp) Members: Yusuke Hagimori, Kiori Obuse Abstract Two-dimensional barotropic model on a rotating sphere is one of the simplest mathematical models describing the dynamics of planetary atmospheres. The two-dimensional turbulence shows the spontaneous formation of large-scale zonal flows similar to those seen on giant gas planets such as Jupiter. However, this mechanism・・・<<read more>>
