JAXA Supercomputer System Annual Report February 2025-January 2026 Report Number: R25EDG20104 Subject Category: Research and Development PDF Responsible Representative: Seiji Tsutsumi, RInsertHereD Manager, Research and Development Directorate, Research Unit III Contact Information: Seiji Tsutsumi(tsutsumi.seiji@jaxa.jp) Members: Masaharu Abe, Takanori Haga, Hiroyuki Ito, Yasuhito Okano, Seiji Tsutsumi Abstract This study focuses on predicting supersonic jet noise generated during the landing of a reusable rocket using computational fluid dynamics (CFD). The project aims to predict aerodynamic noise induced by the engine exhaust jet・・・<<read more>>
JAXA Supercomputer System Annual Report February 2025-January 2026 Report Number: R25EDG20112 Subject Category: Research and Development PDF Responsible Representative: Shimizu Taro, Research and Development Directorate Research Unit 3 Contact Information: koichiro ito(ito.koichiro@jaxa.jp) Members: Koichiro Ito, Ishihama Naoki Abstract We have developed a Vision-Language Model (VLM) for automatic document analysis within JAXA, focusing on creating a local model capable of interactive dialogue, especially with diagrams. In our experiments, we explored new instruction learning methods for diagram recognition. Reference URL N/A Reasons・・・<<read more>>
JAXA Supercomputer System Annual Report February 2025-January 2026 Report Number: R25EDG20140 Subject Category: Research and Development PDF Responsible Representative: Seiji Tsutsumi, RInsertHereD Manager, Research and Development Directorate, Research Unit III Contact Information: Seiji Tsutsumi(tsutsumi.seiji@jaxa.jp) Members: Masaharu Abe, Kengo Asada, Hiroaki Amakawa, Shotaro Hamato, Kaname Kawatsu, Seiji Tsutsumi, Akihito Takeda, Akimitsu Terunuma Abstract In this study, eigenvalue analyses were conducted for Nihon University’s microsatellite Prelude using FrontISTR, and validation was performed based on the results of vibration tests. Reference URL N/A・・・<<read more>>
JAXA Supercomputer System Annual Report February 2025-January 2026 Report Number: R25EDG20155 Subject Category: Research and Development PDF Responsible Representative: Kaname Kawatsu, Research and Development Directorate Research Unit III Contact Information: Keiichiro Fujimoto, Research and Development Directorate Research Unit III(fujimoto.keiichiro@jaxa.jp) Members: Keiichiro Fujimoto, Takayuki Ito, Shohta Inagawa, Akari Murata, Shinjiro Tsuji, Naoto Tsubaki Abstract Reentry safety evaluation of rocket upper stages and spacecraft (risk assessment of surviving debris) is an important topic for ensuring the sustainability of space development. It is・・・<<read more>>
JAXA Supercomputer System Annual Report February 2025-January 2026 Report Number: R25EDG20177 Subject Category: Research and Development PDF Responsible Representative: Taro Shimizu, Research and Development Directorate, Research Unit III, JAXA Contact Information: Kaname Kawatsu, Research Unit III, Research and Development Directorate, JAXA(kawatsu.kaname@jaxa.jp) Members: Keiichiro Fujimoto, Kaname Kawatsu, Kei Nishimura, Yusuke Oki, Kugo Okada, Shinjiro Tsuji, Naoto Tsubaki Abstract Recently, there are many research with regard to model-based development approach and degialization of space systems. JAXA Reserch Unit III is developing system・・・<<read more>>
