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Numerical investigation of flow around intake and wing

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JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23ETET10 Subject Category: Skills Acquisition System PDF Responsible Representative: Atsushi Hashimoto, Aviation Technology Directorate, Lifecycle Innovation Hub Contact Information: Atsushi Hashimoto(hashimoto.atsushi@jaxa.jp) Members: Manami Fujii, Kohei Konishi, Keita Ogura, Kosuke Uchida Abstract The development of supersonic/hypersonic passenger airplanes has been accelerated in recent years to deal with the demand for faster intercontinental transport. Buzz is one of the most important problems in realizing air-breathing supersonic/hypersonic engines. This is the self-excited oscillation・・・<<read more>>

Basic research for system integration of silent supersonic airplane

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JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23ETET01 Subject Category: Skills Acquisition System PDF Responsible Representative: Yoshikazu Makino, Aviation Technology Directorate, Silence Supersonic Aircraft Team Contact Information: Hiroaki Ishikawa(ishikawa.hiroaki2@jaxa.jp) Members: Yosuke Hashimoto, Hiroaki Ishikawa, Ryo Kanazawa, Kaito Shimizu, Takao Tsuchiya, Taiga Ueno Abstract The system integration design technologies for achieving low sonic-boom, low aerodynamic drag, low landing and take-off noise, and light weight simultaneously are the key technologies for future supersonic airplanes. JAXA is promoting the R&D・・・<<read more>>

Numerical study on unsteady analysis fo compressible flow

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JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23ETET00 Subject Category: Skills Acquisition System PDF Responsible Representative: Kazuyuki Nakakita, Aviation Technology Directorate, Aircraft Lifecycle Innovation Hub Contact Information: Nobutaka Taniguchi(taniguchi-nobutaka@g.ecc.u-tokyo.ac.jp) Members: Nobutaka Taniguchi Abstract Stability analysis is a method to investigate the time-evolution of disturbance field applied to the flow field. In this study, we develop a numerical method suitable for the analysis of compressible flow considering the accurate track of nonlinear time-evolution of the disturbance field. To・・・<<read more>>

Retrieval of greenhouse gas concentrations from GOSAT-2 observations

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JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23ER3501 Subject Category: Space Technology PDF Responsible Representative: KUZE Akihiko, GOSAT-2 Project Team, Space Technology Directorate I Contact Information: Nobuhiro Kikuchi (Earth Observation Research Center)(kikuchi.nobuhiro@jaxa.jp) Members: Makiko Hashimoto, Kenji Kowata, Fumie Kataoka, Nobuhiro Kikuchi, Hideyuki Noguchi, Kei Shiomi, Hiroshi Suto, Atsushi Sugano, Shigeaki Wada, Takehito Yoshida Abstract Atmospheric concentrations of carbon dioxide, methane and carbon monoxide are retrieved from hyper sectral data measured by The Greenhouse Gasea Observing Sattelite 2・・・<<read more>>

Greenhouse gases Observing SATellite-2 (GOSAT-2) Project

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JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23ER3500 Subject Category: Space Technology PDF Responsible Representative: KUZE Akihiko, GOSAT-2 Project Team, Space Technology Directorate I Contact Information: Yoko Ueda(ueda.yoko@jaxa.jp) Members: Makiko Hashimoto, Kenji Kowata, Fumie Kataoka, Yuki Kobayashi, Nobuhiro Kikuchi, Taro Makino, Tomoyuki Mabuchi, Takaaki Nishino, Kohei Sugimoto, Hiroshi Suto, Yoko Ueda, Shigeaki Wada, Yugi Yata Abstract GOSAT-2 project retrieve and estimate the global concentration distribution of major greenhouse gases including the sources and natural absorbers with high・・・<<read more>>