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Studies on nonlinear vortex dynamics in the later-stage of laminar-turbulent transition in compressible boundary layers

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JAXA Supercomputer System Annual Report April 2018-March 2019 Report Number: R18EACA13 Subject Category: JSS2 Inter-University Research PDF Responsible Representative: Kazuo Matsuura, Associate Professor, Ehime University, Graduate School of Science and Engineering Contact Information: Kazuo Matsuura(matsuura.kazuo.mm@ehime-u.ac.jp) Members: Kazuo Matsuura Abstract In hypersonic transitional flows, there are many complicated factors such as density fluctuation and temperature fluctuation due to the co-existence of the region slower than the speed of sound and the region faster than the speed of sound inside the boundary・・・<<read more>>

Development and application of multiphase flow solver for moving object using Cartesian grid

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JAXA Supercomputer System Annual Report April 2018-March 2019 Report Number: R18EACA10 Subject Category: JSS2 Inter-University Research PDF Responsible Representative: Shun Takahashi, Tokai Univercity Contact Information: Shun Takahashi, Tokai Univercity(takahasi@tokai-u.jp) Members: Shun Takahashi, Taku Nonomura Abstract The particulate flow is solved by the direct numerical simualtion using Euler-Euler approarch method. The objective is to investigate the interaction between the flow and particles and to develop the particulate model for the large scale compressible multiphase flow simulation. Reference URL N/A Reasons for・・・<<read more>>

Numerical analysis on atomization and spray combustion

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JAXA Supercomputer System Annual Report April 2018-March 2019 Report Number: R18EA2150 Subject Category: Aeronautical Technology PDF Responsible Representative: Toshio Nishizawa, Aeronautical Technology Directorate, Propulsion Research Unit Contact Information: Kazuaki Matsuura, Japan Aerospace Exploration Agency, Aeronautical Technology Directorate, Propulsion Research Unit(matsuura.kazuaki@jaxa.jp) Members: Kazuaki Matsuura, Naoki Nakamura, Mitsumasa Makida, Huilai Zhang, Jun Iino, Kinya Saito Abstract A numerical study is performed to clarify phenomena on atomization and spray combustion. Reference URL N/A Reasons for using JSS2 In order to analyze a complicated・・・<<read more>>

Research on the aircraft structures and advanced composite materials

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JAXA Supercomputer System Annual Report April 2018-March 2019 Report Number: R18EA1601 Subject Category: Aeronautical Technology PDF Responsible Representative: Toshiya Nakamura, Aeronautical Directorate, Structure and Advanced Composite Technology Reasearch Unit Contact Information: Yuichiro Aoki(aoki.yuichiro@jaxa.jp) Members: Akinori Yoshimura, Masaya Ebina, Yuichiro Aoki, Toshiyuki Kasahara Abstract Application of the composite materials will contribute to improving the performance of aircraft and spacecraft components. JAXA conducts researches for overcoming weaknesses of current composite materials, clarifying unknown aspects such as fracture mechanisms, improving performance and enabling・・・<<read more>>

Utilization of RCS Jet interaction for Reinforcing Attitude Contorol Ability

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JAXA Supercomputer System Annual Report April 2018-March 2019 Report Number: R18EA1403 Subject Category: Aeronautical Technology PDF Responsible Representative: Shigeru Hamamoto, Aeronautical Technology Directorate, Aerodynamics Research Unit Contact Information: Hajime Miki(miki.hajime@jaxa.jp) Members: Hajime Miki, Yoshiki Takama Abstract In some cases, a lifting reentry capsule does not have enough attitude control ability. The purpose of this study is to utilize RCS interaction as an auxillary control force by local modification of capsule's external shape. Reference URL N/A Reasons for using JSS2 The・・・<<read more>>