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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>>

Research of Plasma Simulation in Electric Propulsion Devices

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JAXA Supercomputer System Annual Report February 2022-January 2023 Report Number: R22ECWU04 Subject Category: Cooperative Graduate School System PDF Responsible Representative: Takashi Aoyama, Aviation Technology Directorate, Program Director Contact Information: Kiyoshi Kinefuchi, Department of Aerospace Engineering, Graduate School of Engineering, Nagoya University(kiyoshi.kinefuchi@mae.nagoya-u.ac.jp) Members: Fumito Takase, Ryohei Takagi Abstract The purpose of this research is to investigate the effect of the state of the lanthanum hexaboride insert responsible for thermal electron emission from the hollow cathode used as an electron source in・・・<<read more>>

Study on future space transportation system - combined cycle engine (JAXA-Tohoku Univ. collaborative course)

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JAXA Supercomputer System Annual Report February 2022-January 2023 Report Number: R22ECWU07 Subject Category: Cooperative Graduate School System PDF Responsible Representative: Sadatake Tomioka, Associate Principal Researcher, Research and Development Directorate, 4th Unit. Contact Information: Sadatake Tomioka (RInsertHereD directorate, 4th Research Unit)(tomioka.sadatake@jaxa.jp) Members: Sadatake Tomioka, Hironobu Nishiguchi, Kota Kubosaki, Hattori, Ryota Ito, Shota Hatta Abstract Fully reusable launch vehicle will reduce the transportation cost and increase the space launch demands. Introduction of airbreathing engine will afford system weigth penalty necessary to realise・・・<<read more>>

Research on particle-grid hybrid analysis method

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JAXA Supercomputer System Annual Report February 2022-January 2023 Report Number: R22ECWU03 Subject Category: Cooperative Graduate School System PDF Responsible Representative: Yasuhiro Mizobuchi, Aviation Technology Directorate, Aircraft Lifecycle Innovation Hub Contact Information: Hiroki Tsujimura (Waseda University)(hiroki-tsujimura@toki.waseda.jp) Members: Hiroki Tsujimura Abstract In this project, we study the particle-grid hybrid analysis method, a novel method suitable for numerical analysis of liquid fuel atomization. In the method, liquid is calculated by a particle method (the moving particle simulation (MPS) method using JAXA's software "P-flow"),・・・<<read more>>

Development of drag reduction technology for rotorcraft

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JAXA Supercomputer System Annual Report February 2022-January 2023 Report Number: R22ECMP23 Subject Category: Competitive Funding PDF Responsible Representative: Arizono Hitoshi, Aeronautical Technology Directorate, Aviation Environmental Sustainability Innovation Hub Contact Information: higo.ayumi@subaru.co.jp(higo.ayumi@subaru.co.jp) Members: Ayumi Higo, Tomofumi Iwamoto, Masafumi Sasaki, Hideaki Sugawara, Yasutada Tanabe Abstract 30% of the total drag of rotorcrafts is main rotor hub and mast drag. The hub fairing and the mast cowling were installed on the compound helicopter concept model developed by JAXA, and hub drag reduction effect・・・<<read more>>