JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EACA49 Subject Category: JSS Inter-University Research PDF Responsible Representative: Taku Nonomura, Professor, Nagoya University Contact Information: Taku Nonomura (Professor at Nagoya University)(nonomura@nagoya-u.jp) Members: Taku Nonomura, Takayuki Nagata Abstract Large-eddy simulations (LES) are performed under compressible conditions of flow around symmetric airfoils, including flat plates with Reynolds numbers of O(10^3)-O(10^4), to elucidate the effects of compressibility on laminar separation bubbles and turbulent transition. In the low Reynolds number region investigated in・・・<<read more>>
JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EACA52 Subject Category: JSS Inter-University Research PDF Responsible Representative: Shinichiro Ogawa, Assistant professor, Osaka Metropolitan University Contact Information: Shinichiro Ogawa, Assistant professor, Osaka Metropolitan University Members: Shinichiro Ogawa, Loup Mael Agulles, Daisuke Sasaki, Shoya Yoshinaga, Keishiro Yoshida Abstract In this study, to elucidate the internal flow field of a solid rocket motor, a numerical analysis was conducted using the Building-Cube Method (BCM), which applies the immersed boundary method to a・・・<<read more>>
JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EACA53 Subject Category: JSS Inter-University Research PDF Responsible Representative: Naofumi Ohnishi, Professor, Tohoku University Contact Information: Hiroki Sakamoto (Tottori University)(hiroki.sakamoto@tottori-u.ac.jp) Members: Yuma Kuroda, Naofumi Ohnishi, Hiroki Sakamoto Abstract An expansion tube, a shock wind tunnel that generates hypersonic flow, is expected to be a wind tunnel that can experimentally simulate the flow at superorbital reentry on the ground. In the expansion tube, turbulent transition is considered to adversely affect the・・・<<read more>>
JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EACA55 Subject Category: JSS Inter-University Research PDF Responsible Representative: Takayuki Nagata, Assistant Professor, Nagoya University Contact Information: Takayuki Nagata (Assistant Professor at Nagoya University)(takayuki.nagata@mae.nagoya-u.ac.jp) Members: Taku Nonomura, Takayuki Nagata Abstract Compressible flow around particles placed in a flowfield is investigated by the direct numerical simulation of the Navier-Stokes equations at Reynolds number of O(10^2). The objective of the present study is to obtained fundamental insight into the effects of aerodynamic・・・<<read more>>
JAXA Supercomputer System Annual Report February 2024-January 2025 Report Number: R24EACA56 Subject Category: JSS Inter-University Research PDF Responsible Representative: Hirotaka Otsu, Professor, Ryukoku University Contact Information: Hirotaka Otsu, Professor, Ryukoku University(otsu@rins.ryukoku.ac.jp) Members: Hirotaka Otsu Abstract For deleveopment of future sample return capsule, we applied the hyperbolic contours to design the front shape of the capsue. To find the optimal shape of the capsule, we perfomed CFD analyses. Reference URL N/A Reasons and benefits of using JAXA Supercomputer System There have・・・<<read more>>
