JAXA Supercomputer System Annual Report April 2017-March 2018 Report Number: R17EACA17 Subject Category: JSS2 Inter-University Research PDF Responsible Representative: Masayuki Takahashi, Tohoku University Contact Information: Masayuki Takahashi mtakahashi@rhd.mech.tohoku.ac.jp Members: Masayuki Takahashi Abstract Propulsion performance of a beamed-energy vehicle is improved by reproducing breakdown physics and shock wave propagation induced inside a rocket nozzle. Reference URL N/A Reasons for using JSS2 We used JSS2 because computational costs for reproducing a multi-dimensional physics of the breakdown process and shock wave propagation inside・・・<<read more>>
JAXA Supercomputer System Annual Report April 2017-March 2018 Report Number: R17EA1935 Subject Category: Aeronautical Technology PDF Responsible Representative: Takashi AOYAMA, Aeronautical Technology Directorate, Numerical Simulation Research Unit Contact Information: Atsushi Hashimoto hashimoto.atsushi@jaxa.jp Members: Takuya Aogaki, Atsushi Hashimoto, Keiichi Kitamura, Kanta Fukumoto, Ayano Inatomi, Toshiaki Harada, Suguru Ogawa, Yuuya Takagi, Hiroyuki Takimoto, Hiroto Yaginuma Abstract Post Limiter has been improved to "Post Limiter 3(new)", and incorporated into JAXA's flow analysis code "FaSTAR." Then, its performance has been demonstrated in several aerodynamic・・・<<read more>>
JAXA Supercomputer System Annual Report April 2017-March 2018 Report Number: R17EA0716 Subject Category: Aeronautical Technology PDF Responsible Representative: Toshiya Nakamura(Aeronautical Technology Directorate, Next Generation Aeronautical Innovation Hub Center) Contact Information: Shunji ENOMOTO enomoto.shunji@jaxa.jp Members: Shunji ENOMOTO, Tatsuya ISHII, Kae ITO, Nobuhiko YAMASAKI Abstract Noise generated from the jet engine is dominant to total aircraft noise level and it is very important to reduce this. In this project, demonstration of exhaust noise reduction by changing exhaust duct shape, and study of・・・<<read more>>
JAXA Supercomputer System Annual Report April 2017-March 2018 Report Number: R17EACA23 Subject Category: JSS2 Inter-University Research PDF Responsible Representative: Toshiharu Mizukaki, Dept. of Aeronautics and Astronautics, Tokai University Contact Information: Toshiharu Mizukaki mizukaki@keyaki.cc.u-tokai.ac.jp Members: Toshiharu Mizukaki, Taro Odagiri, Yusuke Higo, Akari Kato Abstract Around the supersonic parachute for Mars probing, drastic transformation of shock-wave oscillation has been observed. In the worst case, the shock waves oscillation deforms the parachute to collapse. In this research, we try to revile the mechanism・・・<<read more>>
JAXA Supercomputer System Annual Report April 2017-March 2018 Report Number: R17EACA05 Subject Category: JSS2 Inter-University Research PDF Responsible Representative: Susumu Goto, Graduate School of Engineering Science, Osaka University Contact Information: Susumu Goto goto@me.es.osaka-u.ac.jp Members: Keita Hanajima, Susumu Goto, Ken Komoda, Jun Kanki, Yutaro Motoori Abstract In this project, we are revealing the universality in the statistics and dynamics of fully developed turbulence at sufficiently high Reynolds numbers. For this purpose, we conduct direct numerical simulations of turbulence under different boundary・・・<<read more>>
