Report Number: R16E0014 Responsible Representative: Yuichi Matsuo(Aeronautical Technology Directorate, Numerical Simulation Research Unit) Contact Information: Takashi Takahashi(takahashi.takashi@jaxa.jp) Members: Kan Ohkubo, Takahiro Higashi, Takumi Iwao, Yuya Ohmichi, Takashi Takahashi, Masashi Kanamori, Mami Hayakawa, Yuta Mori, Tatsuya Narumi, Ryutaro Furuya Subject Category: Basic Research(Numerical analysis,Modeling) Abstract We are concentrating on the wave-based method, which makes it possible to precisely analyze a wide range of acoustic vibrations up to mid-frequencies. We are also studying the numerical prediction approaches of sound sources and propagations・・・<<read more>>
Report Number: R16E0013 Responsible Representative: Yuichi Matsuo(Aeronautical Technology Directorate, Numerical Simulation Research Unit) Contact Information: Atsushi Hashimoto(hashimoto.atsushi@jaxa.jp) Members: Takashi Ishida, Yuichi Matsuo, Atsushi Hashimoto, Kenji Hayashi, Kuniyuki Takekawa, Takashi Aoyama, Takahiro Yamamoto Subject Category: Aviation(Aircraft) Abstract The objective of this study is to realize CFD that can be used in the entire flight envelope by investigating precise CFD technologies that can be applied to unsteady phenomena, such as aerodynamic buffeting and flow separation. Goal Please refer 'Unsteady CFD technologies for・・・<<read more>>
Report Number: R16E0012 Responsible Representative: Yutaka Iwahori(Aeronautical Directorate, Structure and Advanced Composite Technology Reasearch Unit) Contact Information: Kenichi Saitoh(ksaitoh@chofu.jaxa.jp) Members: Kenichi Saitoh, Hamidreza Kheirandish Subject Category: Aviation(Aircraft,Body structure) Abstract The flutter which is a destructive vibration phenomenon of aircraft occurs more easily around sonic speed than the other speed range. Meanwhile, it is known to be a limit cycle oscillation (LCO). To understand these properties, wind tunnel test is performed, and accuracy of the numerical analysis is improved to simulate・・・<<read more>>
