JAXA Supercomputer System Annual Report February 2025-January 2026 Report Number: R25EACA20 Subject Category: JSS Inter-University Research PDF Responsible Representative: Keiichi Kitamura, Professor, Yokohama National University Contact Information: Hiromu Sunazuka(sunazuka-hiromu-jx@ynu.jp) Members: Keiichi Kitamura, Yuki Oonawa, Hiromu Sunazuka Abstract It is important to accurately understand the aerodynamic characteristics of rocket vehicles and deceleration devices for reducing the cost of space transportation and advancing planetary exploration technologies. In particular, in supersonic flows accompanied by shock waves, surface protrusions on the vehicle and the・・・<<read more>>
JAXA Supercomputer System Annual Report February 2025-January 2026 Report Number: R25EACA21 Subject Category: JSS Inter-University Research PDF Responsible Representative: Keiichi Kitamura, Supervisor Prof. Yokohama national university Contact Information: Kota Tanikawara(tanikawara-kota-pc@ynu.jp) Members: Ryounosuke Hoshi, Seiichiro Kobayashi, Keiichi Kitamura, Kota Tanikawara Abstract Previous studies investigated a slender body geometry simulating a typical rocket and clarified the effects of protuberances on supersonic aerodynamic characteristics and the surrounding flow field through computational fluid dynamics CFD and wind tunnel experiments. In this study it was・・・<<read more>>
JAXA Supercomputer System Annual Report February 2025-January 2026 Report Number: R25EACA26 Subject Category: JSS Inter-University Research PDF Responsible Representative: Takuto Ogawa, Project assistant professor, Shibaura Institute of Technology Contact Information: Takuto Ogawa(ogawa-t@shibaura-it.ac.jp) Members: 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 separation control methods to adapt unsteady flows over the airfoils through・・・<<read more>>
JAXA Supercomputer System Annual Report February 2025-January 2026 Report Number: R25EACA41 Subject Category: JSS Inter-University Research PDF Responsible Representative: Makoto Sato, Associate Professor, Kogakuin University Contact Information: Makoto Sato, Kogakuin University(msato@cc.kogakuin.ac.jp) Members: Takahumi Hirose, Yusei Iida, Yuya Kuroda, Taichi Matsumoto, Makoto Sato, Mitsuho Taniguchi, Yohei Takahashi, Hiroshi Yukita Abstract The ISAS/JAXA is leading a research and development project for various Mars aricrafts. In the Oyama Laboratory at the ISAS, experimental studies has been conducted to measure the aerodynamic characteristics of・・・<<read more>>
JAXA Supercomputer System Annual Report February 2025-January 2026 Report Number: R25EACA46 Subject Category: JSS Inter-University Research PDF Responsible Representative: Kiori Obuse, Professor, Okayama University Contact Information: Kiori Obuse(obuse@okayama-u.ac.jp) Members: Kiori Obuse, Yuki Yamaguchi Abstract One of the simplest mathematical models describing the dynamics of planetary atmospheres, the 2D barotropic turbulence on a rotating sphere, shows the spontaneous formation of large-scale zonal flows such as those seen in giant gas planets. However, this mechanism has not been fully clarified. The aim・・・<<read more>>
