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Numerical Study on Rotor Performance of Mars Helicopter

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JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21EACA41 Subject Category: JSS Inter-University Research PDF Responsible Representative: Makoto Sato, Associate Professor, Kogakuin University Contact Information: Makoto Sato, Kogakuin University(msato@cc.kogakuin.ac.jp) Members: Makoto Sato Abstract Mars helicopter project is now going. Since the atomospheric density on Mars is about 1/100, the sound of speed is about 3/4 compared with those on Earth, we need to develop the high perfmance heli-rotar. In JAXA, the experimental measurements of the heli-rotar performance at・・・<<read more>>

Application of High-Fidelity Aerodynamic Analysis to Multidisciplinary Design Optimization for Reusable Space Transportation System

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JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21EACA48 Subject Category: JSS Inter-University Research PDF Responsible Representative: Takahiro Fujikawa, Assistant Professor, Faculty of Science and Technology, Tokyo University of Science Contact Information: Takahiro Fujikawa, Faculty of Science and Technology, Tokyo University of Science(fujikawa.takahiro@rs.tus.ac.jp) Members: Takahiro Fujikawa, Koichi Yonemoto, Tsuyoshi Ohtsuki, Tomotaka Watanabe, Shintaro Tejika, Ayaka Yamazaki Abstract Strong interactions between vehicle and trajectory during the design of winged reusable space transportation systems have motivated the application of multidisciplinary・・・<<read more>>

Innovative Green Aircraft Technology : High Efficiency and Low Noise Aircraft I

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JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21ETET15 Subject Category: Skills Acquisition System PDF Responsible Representative: Tatsuya Ishii, Aeronautical Technology Directorate, Aviation Enviromental Sustanability Innovation Hub Contact Information: Dongyoun Kwak, Aviation Enviromental Sustanability Innovation Hub(kwak.dongyoun@jaxa.jp) Members: Nozomu Hayabe, Yasushi Ito, Ryosuke Igarashi, Shinya Koganezawa, Dongyoun Kwak, Yohsuke Matsuda, Mitsuhiro Murayama, Tatsuya Nishimoto, Haruki Arai, Ryotaro Sakai, Kenya Takahashi Abstract The purpose of the iGreen research is to develop and mature a bunch of advanced and innovative technologies・・・<<read more>>

Innovative Green Aircraft Technology : High Efficiency and Low Noise Aircraft I

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JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21EA0601 Subject Category: Aeronautical Technology PDF Responsible Representative: Tatsuya Ishii, Aeronautical Technology Directorate, Aviation Enviromental Sustanability Innovation Hub Contact Information: Dongyoun Kwak, Aviation Enviromental Sustanability Innovation Hub(kwak.dongyoun@jaxa.jp) Members: Mitsuhiro Murayama, Dongyoun Kwak, Naoko Tokugawa, Fumitake Kuroda, Yoshine Ueda, Keisuke Ohira, Tohru Hirai, Kentaro Tanaka, Monami Sasamori, Takahiro Ishida Abstract The purpose of the iGreen research is to develop and mature a bunch of advanced and innovative technologies on aerodynamics, aeroacoustics,・・・<<read more>>

Comparison of two-dimensional turbulent on a rotating sphere and a beta-plane by Lyapunov analysis

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JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21EACA46 Subject Category: JSS Inter-University Research PDF Responsible Representative: Kiori Obuse, Associate Professor, Oakayama University Contact Information: Kiori Obuse(obuse@okayama-u.ac.jp) Members: Shoichiro Hara, Kiori Obuse Abstract When considering two-dimensional turbulence on a rotating sphere, there are, broadly speaking, a spherical model that treats the flow field on the sphere itself, and a beta-plane (approximation) model that considers the flow field on a tangent plane at a point on a rotating sphere.・・・<<read more>>