JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21EACA20 Subject Category: JSS Inter-University Research PDF Responsible Representative: Keiichi Kitamura, Associate Professor, Yokohama Contact Information: Fumiya TSUTSUI (Yokohama National University)(tsutsui-fumiya-rt@ynu.jp) Members: Keiichi Kitamura, Fumiya Tsutsui, Yuya Yasumura Abstract Both launch vehicles and supersonic parachutes play an important role in space transportation, and fly at supersonic speeds. Factors that hinder safe flights include the generation of complex vortex structures caused by protuberances on the rocket’s surface and deformation of the・・・<<read more>>
JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21EA3304 Subject Category: Aeronautical Technology PDF Responsible Representative: Yoshikazu Makino, Aeronautical Technology Directorate, Aviation Systems Research Unit Contact Information: Masahiko Sugiura(sugiura.masahiko@jaxa.jp) Members: Masahiko Sugiura, Keita Kimura, Hideaki Sugawara, Yasutada Tanabe, Kuniyuki Takekawa Abstract Compound helicopter is a one of the high-speed rotorcraft concepts. In high-speed compound helicopter, the rotor revolution is slower than the conventional helicopters, considering the effect of compressibility at the blade advancing side. In this case, a・・・<<read more>>
JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21EEU30800 Subject Category: Space and Astronautical Science PDF Responsible Representative: Iku SHONOHARA, Unit Director, Science Satellite Operation and Data Archive Unit, ISAS Contact Information: NAKAHIRA, Satoshi(nakahira.satoshi@jaxa.jp) Members: Satoshi Nakahira, Ken Ebisawa, Eiji Honjoh Abstract The data size of space science data has been growing due to the increasing performance of instruments and longer observation time periods, and it now takes several months to recreate data due to e.g. calibration changes.・・・<<read more>>
JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21ETET50 Subject Category: Skills Acquisition System PDF Responsible Representative: AOYAMA Takeshi, Director, Aeronautical Technology Directrate, Aircraft Lifecycle Innovation Hub Contact Information: Kazuya Uchiyama(kazuchiyama@toki.waseda.jp) Members: Kazuya Uchiyama Abstract High-Mach Integrated Control Experiment (HIMICO), being conducted by JAXA and universities, is the first phase of research and development for the realization of a hypersonic passenger aircraft. The ramjet engine used in this project is fueled by gaseous hydrogen. There are issues such・・・<<read more>>
JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21EACA31 Subject Category: JSS Inter-University Research PDF Responsible Representative: Soshi Kawai, Professor, Tohoku University Contact Information: Ryo Hirai(ryo.hirai.q7@dc.tohoku.ac.jp) Members: Soshi Kawai, Ryo Hirai, Shoichi Nasukawa, Yuta Iwatani, Yuji Fujiwara, Atsushi Nakano Abstract In this study, we perform wall-modeled large-eddy simulation (wall-modeled LES) of shock wave/turbulent boundary layer interactions with wall heat flux to evaluate the predictability of the wall heating/cooling effects on the shock-induced boundary layer separations. The wall-modeled LES・・・<<read more>>
