JAXA Supercomputer System Annual Report April 2019-March 2020 Report Number: R19ECMP17 Subject Category: Competitive Funding PDF Responsible Representative: Yoshikazu Makino, Unit Director, Aviation Systems Research Unit, Aeronautical Technology Directorate Contact Information: Yasutada Tanabe(tan@chofu.jaxa.jp) Members: Yasutada Tanabe, Hideaki Sugawara, Riku Tanaka, Kuniyuki Takekawa Abstract Larger and heavier drones are being developed along with new trials to built multiple-rotor type eVTOLs which can carry several people. However, the flowfields around multiple rotors where the neighboring rotors are rotating in different directions are・・・<<read more>>
JAXA Supercomputer System Annual Report April 2019-March 2020 Report Number: R19ECMP12 Subject Category: Competitive Funding PDF Responsible Representative: Shingo Matsuyama, Aeronautical Technology Directorate, Numerical Simulation Research Unit Contact Information: Shingo Matsuyama(smatsu@chofu.jaxa.jp) Members: Shingo Matsuyama Abstract In this study, combustion analysis by large eddy simulation (Large-Eddy Simulation, LES) was carried out in order to clarify propagation characteristics and detailed structure of rotating detonation wave. Two-dimensional and three-dimensional simulations were carried out for stable operating conditions in the combustion test of the・・・<<read more>>
JAXA Supercomputer System Annual Report April 2019-March 2020 Report Number: R19ECMP10 Subject Category: Competitive Funding PDF Responsible Representative: Yasutada Tanabe, Aeronautical Technology Directorate, Aviation Systems Research Unit Contact Information: Yasutada Tanabe(tan@chofu.jaxa.jp) Members: Yasutada Tanabe, Hideaki Sugawara, Kuniyuki Takekawa, Masafumi Sasaki Abstract Compound helicopter is one of the next-generation rotorcraft to achieve high-speed flight. However, the increased drag due to the aerodynamic interaction between the rotor and the fixed-wing is one of the technology issues for this type of rotorcraft. The・・・<<read more>>
JAXA Supercomputer System Annual Report April 2019-March 2020 Report Number: R19ECMP08 Subject Category: Competitive Funding PDF Responsible Representative: Shingo Matsuyama, Aeronautical Technology Directorate, Numerical Simulation Research Unit Contact Information: Shingo Matsuyama(smatsu@chofu.jaxa.jp) Members: Shingo Matsuyama Abstract In this study, we aim to realize a comprehensive LES that does not require any tuning for model parameters to the target flow field by solving the SGS stress transport equations. The SGS stress equations are derived exactly from the spatial filtering operation, but requires・・・<<read more>>
