JAXA Supercomputer System Annual Report April 2020-March 2021 Report Number: R20EACA21 Subject Category: JSS Inter-University Research PDF Responsible Representative: Keiichi Kitamura, Associate Professor, Yokohama National University Contact Information: Hayato Kawashima (Yokohama National University)(kawashima-hayato-rn@ynu.jp) Members: Keiichi Kitamura, Hayato Kawashima Abstract In order to obtain the drag value of a slender body such as rockets from a wind tunnel test, the drag correction considering cavity pressure and base pressure is typically required to remove the effect of a sting. At first in・・・<<read more>>
JAXA Supercomputer System Annual Report April 2020-March 2021 Report Number: R20EACA20 Subject Category: JSS Inter-University Research PDF Responsible Representative: Keiichi Kitamura, Associate Professor, Yokohama National University Contact Information: Fumiya TSUTSUI (Yokohama National University)(tsutsui-fumiya-rt@ynu.jp) Members: Keiichi Kitamura, Fumiya Tsutsui, Yuya Yasumura Abstract Flying vehicles, such as rockets and supersonic parachutes, fly at supersonic speeds and play an important role in transporting goods. Hence, it is important to ensure stable flight. Factors that inhibit flight stability include protuberance on the rocket and・・・<<read more>>
JAXA Supercomputer System Annual Report April 2020-March 2021 Report Number: R20EACA18 Subject Category: JSS Inter-University Research PDF Responsible Representative: Seiichiro Morizawa, Lecturer, National Institute of Technology, Okinawa College Contact Information: Seiichiro Morizawa(morizawa@okinawa-ct.ac.jp) Members: Seiichiro Morizawa, Takashi Matsuno Abstract Birds such as hawks have excellent characteristics of flight efficiency and quiteness. One of these distingusished features is thought to be the shape of wingtip with multiple wings and gaps. The purpose of this project is to clarify these mechanisims of wingtip・・・<<read more>>
JAXA Supercomputer System Annual Report April 2020-March 2021 Report Number: R20EACA17 Subject Category: JSS Inter-University Research PDF Responsible Representative: Masayuki Takahashi, Associate Professor, Tohoku University Contact Information: Masayuki Takahashi(mtakahashi@rhd.mech.tohoku.ac.jp) Members: Masayuki Takahashi Abstract To achieve a better design of beaming propulsion vehicle, we numerically reproduce propagation processes of beam-supported plasma and shock wave by simulation and evaluate beam-power dependence on discharge-structure and propagation speed. Reference URL N/A Reasons and benefits of using JAXA Supercomputer System A conputational cost becomes huge・・・<<read more>>
JAXA Supercomputer System Annual Report April 2020-March 2021 Report Number: R20EACA16 Subject Category: JSS Inter-University Research PDF Responsible Representative: Naofumi Ohnishi, Professor, Tohoku University Contact Information: Naofumi Ohnishi(ohnishi@rhd.mech.tohoku.ac.jp) Members: Naofumi Ohnishi, Shintaro Sato Abstract Dielectric barrier discharge (DBD) plasma actuators are promising devices as active airflow control. The purpose of this project is to clarify the mechanism of flow separation control around an airfoil using DBD plasma actuators driven by repetitive nanosecond pulses in terms of discharge-flow coupling simulation. Reference・・・<<read more>>
