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Acoustic Liner Program for High-bypass-ratio Aircraft engines (acoustic performance improvement)

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JAXA Supercomputer System Annual Report February 2022-January 2023 Report Number: R22EDA101C75 Subject Category: Aeronautical Technology PDF Responsible Representative: Kenichiro NAGAI, Aeronautical Technology Directorate, Aviation Environmental Sustainability Innovation Hub Contact Information: Shunji ENOMOTO(enomoto.shunji@jaxa.jp) Members: Shunji ENOMOTO , Hideshi OINUMA , Kenichiro NAGAI , Junichi OKI , Gai KUBO , Tatsuya ISHII Abstract Ultra high bypass ratio aviation jet engines have a smaller sound absorbing liner area than conventional engines. In this project, we will develop sound-absorbing device technology that provides high・・・<<read more>>

Numerical Simulation of the Acoustic Characteristics of Hartmann Generator

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JAXA Supercomputer System Annual Report February 2022-January 2023 Report Number: R22EDA101C11 Subject Category: Aeronautical Technology PDF Responsible Representative: Tatsuya Ishii, Aeronautical Technology Directorate, Aviation Environmental Sustainability Innovation Hub Contact Information: Noise and Vibration Reduction Technology team, Aviation Environmental Sustainability Innovation Hub, Aeronautical Technology Directorate(enomoto.shunji@jaxa.jp) Members: Taichi Fujimoto, Shunji Enomoto, Tatsuya Ishii Abstract Numerical analysis of a fluid interference generator, which generates high sound pressure that can affect the structure of the flow field, for the purpose of reducing the noise・・・<<read more>>

Development of a high-precision unstructured mesh flow solver for aerodynamic design of turbomachinery cascade

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JAXA Supercomputer System Annual Report February 2022-January 2023 Report Number: R22EDA101C13 Subject Category: Aeronautical Technology PDF Responsible Representative: ISHII Tatsuya, Director, Aviation Technology Directrate, Aviation Environmental Sustainability Innovation Hub Contact Information: Taisuke Nambu, Aviation Technology Directorate, Aviation Environmental Sustainability Innovation Hub(nambu.taisuke@jaxa.jp) Members: Manabu Hisida, Hamidreza Kheirandish, Junichi Kazawa, Takahisa Kohno, Taisuke Nambu, Kanako Yasue Abstract FaSTAR-Move-AE, a fluid analysis solver for unstructured meshes, which is mainly targeted at turbomachinery analysis, is developed. This solver will enable aerodynamic analysis of cascades・・・<<read more>>

Study on spacecraft dynamics

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JAXA Supercomputer System Annual Report February 2022-January 2023 Report Number: R22ECWU24 Subject Category: Cooperative Graduate School System PDF Responsible Representative: Shujiro Sawai, Professor, Department of Space Flight Systems, Institute of Space and Astronautical Science Contact Information: Yusuke Maru(maru.yusuke@jaxa.jp) Members: Kazuma Matsumoto, Haruaki Seta, Maiko Yamakawa Abstract Dynamics of space craft and space transportation system is analyzed in this activity. Especially, the purpose of this study is to design an intake for an ATRIUM engine for a reusable sounding rocket incorporating・・・<<read more>>

Gas-Liquid Two Phase Flow Behavior Related to ECLSS

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JAXA Supercomputer System Annual Report February 2022-January 2023 Report Number: R22ECWU77 Subject Category: Cooperative Graduate School System PDF Responsible Representative: Hiroyuki Sugita, Research and Development Directorate, Research Unit II Contact Information: Masato Sakurai(sakurai.masato@jaxa.jp) Members: Shogo Chino, Gaku Murakami, Masato Sakurai Abstract Elucidate the effects of gravity on gas-liquid two-phase flows to develop separation techniques for gas-liquid two-phase flows generated by the operation of the Environment Control and Life Support System (ECLSS). Reference URL N/A Reasons and benefits of using JAXA・・・<<read more>>