JAXA Supercomputer System Annual Report February 2025-January 2026 Report Number: R25EACA58 Subject Category: JSS Inter-University Research PDF Responsible Representative: Shintaro Sato, Assistant professor, Tohoku University Contact Information: Shintaro Sato(shintaro.sato.c3@tohoku.ac.jp) Members: Shintaro Sato Abstract Controlling fluid flows to a preferred state in terms of energy efficiency is an important issue in fluid mechanics. However, it is still challenging to accurately estimate the fluid flow state and accurately determine the control inputs when the fluid flow exhibits a turbulent state. This study・・・<<read more>>
JAXA Supercomputer System Annual Report February 2025-January 2026 Report Number: R25EACA59 Subject Category: JSS Inter-University Research PDF Responsible Representative: Masahiro Kanazaki, Professor, Tokyo Metopolitan University Contact Information: Masahiro Kanazaki, Professor(kana@tmu.ac.jp) Members: Masahiro Kanazaki, Hikari Kono, Takashi Matsuno, Taisei Takagi, Yoshiharu Tamaki, Mana Yokoi Abstract In this study, we devised rotor blades using thin cambered airfoils as a concept for storing a Mars exploration helicopter in a size and shape suitable for transportation by rocket. We performed numerical simulations and optimal・・・<<read more>>
JAXA Supercomputer System Annual Report February 2025-January 2026 Report Number: R25EACA60 Subject Category: JSS Inter-University Research PDF Responsible Representative: Koji Miyaji, Professor, Yokohma National University Contact Information: Koji Miyaji(miyaji@ynu.ac.jp) Members: Koji Miyaji, Kenichiro Takayanagi Abstract The static and dynamic attitude stability of high-speed flying objects are evaluated by numerical flow analysis. In particular, the High-Mach Integrated Control experiment (HIMICO), which is being researched and developed by JAXA and several universities, will be used as the analysis target, but verification will・・・<<read more>>
JAXA Supercomputer System Annual Report February 2025-January 2026 Report Number: R25EACA61 Subject Category: JSS Inter-University Research PDF Responsible Representative: Kota Fukuda, Professor, Department of Aeronautics and Astronautics, Tokai University Contact Information: Kota Fukuda, Tokai University(kfukuda@tokai.ac.jp) Members: Kota Fukuda, Masato Ogawa Abstract When there is a flow path with a narrow diameter and temperature gradient in a gas-filled duct, acoustic vibration may occur thereby. This phenomenon is known as a thermoacoustic phenomenon, and the generated acoustic field may be accompanied by・・・<<read more>>
JAXA Supercomputer System Annual Report February 2025-January 2026 Report Number: R25EACA63 Subject Category: JSS Inter-University Research PDF Responsible Representative: Ko Ogasawara, Tokyo Univercity of Science Contact Information: Atsuki Yoshida(7525570@ed.tus.ac.jp) Members: Kohei Koyama, Ko Ogasawara, Jinto Suzuki, Kento Tashiro, Atsuki Yoshida Abstract The aim of this study is to simulate aerodynamic heating around a vehicle flying at hypersonic speeds in the atmosphere and to identify flight conditions and vehicle designs that help reduce heat flux to the surface. The expected outcome・・・<<read more>>
