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Numerical Study on Combustible Flow in Supersonic Flight Engines and Rocket Engines

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JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EACA01 Subject Category: JSS Inter-University Research PDF Responsible Representative: Nobuyuki Tsuboi, Professor, Kyushu Institute of Technology Contact Information: Nobuyuki Tsuboi(tsuboi@mech.kyutech.ac.jp) Members: Takumi Ito, Tsuyoshi Ifuku, Nobuyuki Tsuboi, Yuta Toshima Abstract Numerical analysis of the aerodynamic characteristics of the RV-X will contribute to improved aircraft design and accurate guidance to the landing site. Reference URL N/A Reasons and benefits of using JAXA Supercomputer System We need to use a supercomputer for・・・<<read more>>

Development of Defensive Technology for Particle Ingestion

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JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EDA201D10 Subject Category: Aeronautical Technology PDF Responsible Representative: Atsushi Kanda, Aviation Technology Directorate, Aviation Safety Innovation Hub Contact Information: Masaya Suzuki, Aviation Technology Directorate, Aviation Safety Innovation Hub(suzuki.masaya@jaxa.jp) Members: Kazuhisa Amemiya, Junichi Kazawa, Shumpei Nammo, Masato Nakajima, Masaya Suzuki, Kazuki Takahashi, Seika Uchimura, Mizuki Watanabe, Shinnosuke Yamamori Abstract The atmosphere in which aircraft fly is not ideal, with various fine particles (volcanic ash, yellow sand, water droplets, etc.) floating in・・・<<read more>>

CFD Analysis of Wind Fields Around Regional Airports

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JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EEA10100 Subject Category: Aeronautical Technology PDF Responsible Representative: Atsushi Kanda, Hub Manager, Aviation Safety Innovation Hub Contact Information: Midori Maki(maki.midori@jaxa.jp) Members: Midori Maki, Hiroki Tadakawa Abstract Sudden changes in low-level wind conditions around airports pose a potential risk to aircraft during takeoff and landing. This project aims to improve the situational awareness of pilots and flight dispatchers by predicting and visualizing terrain-induced turbulence in the atmospheric boundary layer based on・・・<<read more>>

MPI communication optimization for CFD application on supercomputer with complex node connection topology

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JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EFHC0313 Subject Category: Common Business PDF Responsible Representative: Megumi Kamata, Security and Information Systems Department Supercomputer Division Contact Information: Megumi Kamata, Yoimi Kojima(kamata.megumi@jaxa.jp,kojima.yoimi@jaxa.jp) Members: Megumi Kamata, Yoimi Kojima Abstract Computational Fluid Dynamics (CFD) is an essential technology for aerospace engineering and major application of the high-performance computing. Most of CFD software employs MPI for parallelization. In large-scale supercomputers, the computational nodes which are allocated for CFD can be scattered over・・・<<read more>>

Research on advanced rocket engines

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JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EDG20102 Subject Category: Research and Development PDF Responsible Representative: Toshiya Kimura, Specially appointed advisor, Research and Development Directorate, Research Unit IV Contact Information: Toshiya Kimura, Research and Development Directorate, Research Unit IV(kimura.toshiya@jaxa.jp) Members: Kosei Goto, Taku Inoue, Toshiya Kimura, Shinichi Moriya, Mitsuru Shimagaki, Masaharu Takahashi Abstract The objective of our work is to accelerate ongoing projects such as RV-X and CALLISTO, which are R&D of small reusable rockets, and future・・・<<read more>>