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Study of scale effects on the atmospheric entry environment of atmospheric entry capsules

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JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EDA201J04 Subject Category: Aeronautical Technology PDF Responsible Representative: Kazuyuki Nakakita, Aviation Technology Directorate, Fundamental Aeronautics Research Unit Contact Information: Shingo Matsuyama(matsuyama.shingo@jaxa.jp) Members: Shingo Matsuyama, Ryotaro Murakami, Kasumi Nakura Abstract It is known that aerodynamic heating rate, real gas aerodynamic characteristics, and static and dynamic instabilities, which are important prerequisites for the design of atmospheric entry systems, change significantly with changes in capsule shape, but they also change with different representative・・・<<read more>>

Study on Two-dimensional Modeling of Combustion and Turbulence Fields for Aerospace Propulsion Systems

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JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EDA201J05 Subject Category: Aeronautical Technology PDF Responsible Representative: Kazuyuki Nakakita, Aviation Technology Directorate, Fundamental Aeronautics Research Unit Contact Information: Shingo Matsuyama(matsuyama.shingo@jaxa.jp) Members: Kotaro Iguchi, Hideki Moriai, Shingo Matsuyama Abstract There is a strong need to incorporate LES that can reproduce combustion and turbulence phenomena with high fidelity into the design process in order to enhance the efficiency of the development of aerospace propulsion systems such as aero engines and rocket・・・<<read more>>

Multivariate time series data analysis

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JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EDA201N04 Subject Category: Aeronautical Technology PDF Responsible Representative: Kazuyuki Nakakita, Aviation Technology Directorate, Fundamental Aeronautics Research Unit Contact Information: Yuya Ohmichi(ohmichi.yuya@jaxa.jp) Members: Ken Fujino, Keita Nakamoto, Yuya Ohmichi, Kento Yamada Abstract Due to recent advancements in computing, numerical analysis, and experimental techniques, vast amounts of data are being produced, making advanced data analysis methods increasingly important. In this study, we are developing tools to automatically extract latent characteristic structures from・・・<<read more>>

Development of 3D CFD core-software of automotive engine combustion chamber

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JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EDA201N11 Subject Category: Aeronautical Technology PDF Responsible Representative: MizobuchiYasuhiro, Project manager, Aviation Technology Directrate, XANADU Project Team Contact Information: Taisuke Nambu, Aviation Technology Directorate, Fundamental Aeronautics Research Unit(nambu.taisuke@jaxa.jp) Members: Hiroyuki Abe, Atsushi Fujino, Ryohei Kirihara, Takuhito Kuwabara, Daiki Miyai, Taisuke Nambu, Daichi Obinata, Kei Shimura, Shogo Yasuda, Hiroki Yao Abstract Enhancing CAE utilization in automotive engine research through the development of a shared engine combustion simulation software for the Japanese・・・<<read more>>

development of multi-shot ice accretion code

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JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EDA201N14 Subject Category: Aeronautical Technology PDF Responsible Representative: Kazuyuki Nakakita, Aviation Technology Directorate, Fundamental Aeronautics Research Unit Contact Information: Yuki Ide(ide.yuki@jaxa.jp) Members: Yuki Ide, Kei Shimura Abstract research and development of icing simulation tools for CbA Reference URL N/A Reasons and benefits of using JAXA Supercomputer System Due to broadband time and spatial scales of ice accretation, huge computational resources and acceleration of computation by JSS are needed. Achievements of・・・<<read more>>