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Improvement of numerical analysis for internal flow with complicated configuration inside aero-engine

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JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21EA2120 Subject Category: Aeronautical Technology PDF Responsible Representative: AOYAMA Takashi, Director, Aviation Technology Directrate, Aircraft Lifecycle Innovation Hub Contact Information: Taisuke Nambu, Aviation Technology Directorate, Aviation Environmental Sustainability Innovation Hub(nambu.taisuke@jaxa.jp) Members: Shunji Enomoto, Atsushi Hashimoto, Kenji Hayashi, Takashi Ishida, Masatoshi Kanayama, Junichi Kazawa, Takahisa Kohno, Mitsumasa Makida, Taisuke Nambu, Hiroki Ugajin, Kanako Yasue Abstract Unstructured-grid flow solver FaSTAR-Move are applied to aero-engine analysis with complicated configuration. Through the calculation, these・・・<<read more>>

Studies on nonlinear vortex dynamics in the later-stage of laminar-turbulent transition in compressible boundary layers

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JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21EACA13 Subject Category: JSS Inter-University Research PDF Responsible Representative: Kazuo Matsuura, Associate Professor, Ehime University, Graduate School of Science and Engineering Contact Information: Kazuo Matsuura(matsuura.kazuo.mm@ehime-u.ac.jp) Members: Kazuo Matsuura, Kazuto Takimoto Abstract In hypersonic transitional flows, there are many complicated factors such as density fluctuation and temperature fluctuation due to the co-existence of the region slower than the speed of sound and the region faster than the speed of sound inside・・・<<read more>>

Innovative Green Aircraft Technology (iGreen) : Riblet coating technology

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JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21EDA101R01 Subject Category: Aeronautical Technology PDF Responsible Representative: Mitsuru Kurita, Aeronautical Technology Directorate, Aviation Environmental Sustainability Innovation Hub Contact Information: Mitsuru Kurita, Aeronautical Technology Directorate, Aviation Environmental Sustainability Innovation Hub(kurita.mitsuru@jaxa.jp) Members: Fumitake Kuroda, Mitsuru Kurita, Monami Sasamori 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・・・<<read more>>

Long-term orbital environment prediction by orbital debris evolutionary model

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JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21EG3105 Subject Category: Research and Development PDF Responsible Representative: Hiroyuki Sugita, Research and Development Directorate, Research Unit II Contact Information: Nagaoka Nobuaki(nagaoka.nobuaki@jaxa.jp) Members: Ryusuke Harada, Yasuhiro Kitagawa, Satomi Kawamoto, Nobuaki Nagaoka, Norihiko Yamaguchi Abstract Increase of space debris is a problem for reliability of future space activity. JAXA has researched space debris related technology for space debris mitigation and environmental remediation. The effectiveness of space debris countermeasures is evaluated based・・・<<read more>>

FQUROH-A: CFD Code Modifications

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JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21EDA101R29 Subject Category: Aeronautical Technology PDF Responsible Representative: Yasushi Watanabe, Program Director of Aviation Technology, Aviation Technology Directorate Contact Information: Mitsuhiro Murayama, Airframe Noise Reduction Team, Aviation Technology Directorate(murayama.mitsuhiro@jaxa.jp) Members: Mitsuhiro Murayama, Kentaro Tanaka, Tomoaki Ikeda, Yosuke Matsumura Abstract In order to meet the projected demand for air passengers, and to strengthen the international competitiveness of Japan airports and improve the convenience of passengers, major airports are considering increasing the・・・<<read more>>