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Aerodynamic Simulations on Airframe Noise Reduction Technology (FQUROH+)

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JAXA Supercomputer System Annual Report April 2020-March 2021 Report Number: R20EDA101R20 Subject Category: Aeronautical Technology PDF Responsible Representative: Yoshikazu Makino, Aviation Systems Research Unit, Aeronautical Technology Directorate Contact Information: Takehisa Takaishi, Flight Demonstration of Quiet Technology to Reduce Noise from High-Lift Configurations (FQUROH+) Team, Aviation Systems Research Unit, Aeronautical Technology Directorate(takaishi.takehisa@jaxa.jp) Members: Takehisa Takaishi, Mitsuhiro Murayama, Yasushi Ito, Ryotaro Sakai, Kazuomi Yamamoto, Tohru Hirai, Kentaro Tanaka, Kazuhisa Amemiya, Gen Nakano, Takashi Ishida Abstract The FQUROH (Flight Demonstration of Quiet Technology・・・<<read more>>

Innovative Green Aircraft Technology (iGreen) : Riblet coating technology

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JAXA Supercomputer System Annual Report April 2020-March 2021 Report Number: R20EDA101R01 Subject Category: Aeronautical Technology PDF Responsible Representative: Mitsuru Kurita, Aeronautical Technology Directorate, Aviation Systems Research Unit Contact Information: Mitsuru Kurita, Aeronautical Technology Directorate, Aviation Systems Research Unit(kurita.mitsuru@jaxa.jp) Members: Mitsuru Kurita, Fumitake Kuroda Abstract By developing a particular riblet pattern that is effective at reducing the turbulence frictional resistance, and by producing and applying an easy-to-coat method that can create an optimum riblet surface on the airframe, reduce friction drag・・・<<read more>>

Study on Dynamics of Spacecraft and Space Rocket

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JAXA Supercomputer System Annual Report April 2020-March 2021 Report Number: R20ECWU24 Subject Category: Cooperative Graduate School System PDF Responsible Representative: Shujiro Sawai, Institute of Space and Astronautical Science Contact Information: Yusuke Maru(maru.yusuke@jaxa.jp) Members: Haruaki Seta, Maiko Yamakawa, Kentaro Watanabe Abstract Fluid phenomena that appears in space rockets and spacecraft was analysed. There are two main subjects; one is the integrated aerodynamic shape design of the engine and the airframe in the reusable ballistic flight rocket equipped with the air breathing・・・<<read more>>

Numerical Investigation of three-dimensional flow fields around a cavity

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JAXA Supercomputer System Annual Report April 2020-March 2021 Report Number: R20ECWU12 Subject Category: Cooperative Graduate School System PDF Responsible Representative: Yuya ohmichi,Aeronautical Technology Directorate,Numerical Simulation Research Unit Contact Information: Yuya ohmichi(ohmichi.yuya@jaxa.jp) Members: Miumi Maezawa, Yuya Ohmichi Abstract It is well known that a rectangular cavity, such as the one found in the landing gear compartment of aircraft, causes self-excited vibration due to turbulent flow and aerodynamic noise. In this study, we investigated the phenomenon of self-excited vibration inside the cavity・・・<<read more>>

Assessment of the cosmic-ray effects to the cosmic microwave background observation satellite LiteBIRD

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JAXA Supercomputer System Annual Report April 2020-March 2021 Report Number: R20ECWU10 Subject Category: Cooperative Graduate School System PDF Responsible Representative: Masahiro Tsujimoto (Assistant Professor, Department of Astrophysics, ISAS, JAXA) Contact Information: Masahiro Tsujimoto(tsujimot@astro.isas.jaxa.jp) Members: Masahiro Tsujimoto, Takuya Midooka, Tomoki Nagatsuka, Mayu Tominaga, Samantha Stever, Hayato Takakura, Takashi Hasebe Abstract Assessment of the cosmic-ray effects to the cosmic microwave background observation satellite LiteBIRD. Reference URL Please refer to 'LiteBIRD: インフレーション宇宙を検証するCMB偏光観測小型科学衛星'. Reasons and benefits of using JAXA Supercomputer System This study requires・・・<<read more>>