JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EACA58 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, Fumiya Sasaki 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.・・・<<read more>>
JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EACA59 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, Takumi Nakagawa, Riku Tokuono Abstract In this study, we devised rotor blades using thin corrugated airfoils as a concept for storing Mars exploration helicopters in sizes and shapes suitable for rocket transport. Numerical calculations and optimal design were conducted from the perspectives of・・・<<read more>>
JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EACA60 Subject Category: JSS Inter-University Research PDF Responsible Representative: Koji Miyaji, Professor, Yokohma National University Contact Information: Koji Miyaji(miyaji@ynu.ac.jp) Members: Kazuki Hyodo, Koji Miyaji, Kenichiro Takayanagi Abstract The static and dynamic stability of high-speed flying objects are evaluated by CFD. We Actual analysis target is the High-Mach Integrated Control experiment (HIMICO), a hypersonic integrated control experiment being jointly researched and developed by JAXA and several universities. We compare CFD analysis,・・・<<read more>>
JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EACA61 Subject Category: JSS Inter-University Research PDF Responsible Representative: Kazuto Kuzuu, Professor, Department of Mechanical Engineering, Tokai University Contact Information: Kazuto Kuzuu, Tokai University(kuzuu@tsc.u-tokai.ac.jp) Members: Kazuto Kuzuu, 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 a・・・<<read more>>
JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EACA63 Subject Category: JSS Inter-University Research PDF Responsible Representative: Ko Ogasawara, Tokyo Univercity of Science Contact Information: Kohei Koyama(7520040@ed.tus.ac.jp) Members: Koyo Ando, Kohei Koyama, Ko Ogasawara 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 is a reduction in・・・<<read more>>
