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Investigation on the structure of rotating detonation wave

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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>>

Optimization of rotor blade

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JAXA Supercomputer System Annual Report April 2019-March 2020 Report Number: R19ECMP11 Subject Category: Competitive Funding PDF Responsible Representative: Yasutada Tanabe, Senior Researcher, Aviation Systems Research Unit, Aeronautical Technology Directorate Contact Information: Yasutada Tanabe(tan@chofu.jaxa.jp) Members: Yasutada Tanabe, Masahiko Sugiura, Hideaki Sugawara, Kuniyuki Takekawa Abstract Search the optimized rotor blade for high-speed rotorcraft. Reference URL Please refer to 'Future type rotary-airfoil airplane system technology | Sky Frontier – Sky Frontier Program | Aeronautical Technology Directorate'. Reasons and benefits of using JAXA Supercomputer・・・<<read more>>

JAXA-SUBARU Cooperative Research

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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>>

SGS Stress Transport Equation-based SGS Modeling for Comprehensive LES Model

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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>>

Research on the performance improvement of practical aero-engine fuel injector

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JAXA Supercomputer System Annual Report April 2019-March 2020 Report Number: R19EBA30200 Subject Category: Aeronautical Technology PDF Responsible Representative: Takashi Yamane, Aeronautical Technology Directorate, En-Core Pre-project team Contact Information: Kazuaki Matsuura, Japan Aerospace Exploration Agency, Aeronautical Technology Directorate, En-Core Project team(matsuura.kazuaki@jaxa.jp) Members: Kazuaki Matsuura, Mitsumasa Makida, Naoki Nakamura, Jun Iino, Huilai Zhang, Kinya Saito, Kunihiko Sakata, Asuka Akino, Toshio Matsuno, Harumi Toriyama Abstract Our study is focusing on the improvement of fuel injector performance. Numerical simulations on air-flow, atomization, fuel/air mixing,・・・<<read more>>