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Numerical study of the convective structure in Venus atmosphere

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JAXA Supercomputer System Annual Report April 2018-March 2019 Report Number: R18EACA14 Subject Category: JSS2 Inter-University Research PDF Responsible Representative: Ko-ichiro Sugiyama, Associate Professor, National Institute of Technology, Matsue College Contact Information: Ko-ichiro Sugiyama(sugiyama@gfd-dennou.org) Members: Hiroki Ando, Ko-ichiro Sugiyama Abstract Our purpose is to support the observation performed by AKATSUKI (Venus Climate Orbiter) by developing a numerical fluid dynamics model (cloud resolving model) and providing a lot of numerical simulation data. The motion of Venus' cloud-level convection and the propagation of・・・<<read more>>

Computational Study on Aerodynamic Characteristics of Slender Body Configurations

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JAXA Supercomputer System Annual Report April 2018-March 2019 Report Number: R18EACA12 Subject Category: JSS2 Inter-University Research PDF Responsible Representative: Keiichi Kitamura, Associate Professor, Yokohama National University Contact Information: Yuya Takagi(takagi-yuuya-ks@ynu.jp) Members: Keiichi Kitamura, Yuya Takagi Abstract In this study, we attempted to improve the aerodynamic characteristics by attaching delta-wings and vortex-flaps to a slender body. Since the thickness of the fins is small, it is difficult to carry out the wind tunnel experiment. However, we succeeded in acquiring aerodynamic characterisitics・・・<<read more>>

Numerical Study on Combustible Flow in Supersonic Flight Engines and Rocket Engines

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JAXA Supercomputer System Annual Report April 2018-March 2019 Report Number: R18EACA01 Subject Category: JSS2 Inter-University Research PDF Responsible Representative: Nobuyuki Tsuboi, Professor, Department of Mechanical and Control Engineering, Kyushu Institute of Technology Contact Information: Nobuyuki Tsuboi(tsuboi@mech.kyutech.ac.jp) Members: Toshihiro Iwasa, Takahide Araki, Nobuyuki Tsuboi, Yoshiki Nishikawa, Tomoki Uzaki, Ryuji Takahashi, Ayu Agou, Kouhei Ozawa, Nicolas H. Jourdaine, Shota Goto, Kodai Shimomura, Kenta Murayama, Takuro Yoshino, Tomohiro Watanabe Abstract Fundamental studies on nozzles and combustors for Japanese rocket engines and supersonic engines・・・<<read more>>

Improvement of numerical analysis for internal flow with complicated configuration inside aero-engine

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JAXA Supercomputer System Annual Report April 2018-March 2019 Report Number: R18EA2120 Subject Category: Aeronautical Technology PDF Responsible Representative: Takashi Aoyama, Aeronautical Technology Directorate, Numerical Simulation Research Unit Contact Information: Shigeru Kuchiishi(kuchi-ishi.shigeru@jaxa.jp) Members: Shunji Enomoto, Junichi Kazawa, Atsushi Hashimoto, Takashi Ishida, Shigeru Kuchiishi, Mitsumasa Makida, Hiroki Ugajin, Taisuke Nambu, Manabu Hisida, Rika Yamada, Keiji Ueshima, Yuuhi Tanaka, Naoki Tani Abstract Unstructured-grid flow solver FaSTAR-Move and grid generator BOXFUN are applied to aero-engine elements with complicated configuration (such as linear and rotating・・・<<read more>>

Active Fluid Flow Control using DBD Plasma Actuators

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JAXA Supercomputer System Annual Report April 2018-March 2019 Report Number: R18EA1477 Subject Category: Aeronautical Technology PDF Responsible Representative: Yoshihisa Aoki, Aeronautical Technology Directorate, Aerodynamics Research Unit Contact Information: Yoshihisa Aoki(aoki@chofu.jaxa.jp) Members: Yoshihisa Aoki Abstract Improvement of aerodynamic characteristics using DBD plasma actuators. Reference URL N/A Reasons for using JSS2 It takes a lot of time to calcurate. Achievements of the Year Unsteady fluid flow analysis around cylinder was conducted using FaSTAR. Publications N/A Usage of JSS2 Computational Information Process Parallelization・・・<<read more>>