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Research on the rotorcraft aerodynamics and noise prediction technologies

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JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23EDA201G28 Subject Category: Aeronautical Technology PDF Responsible Representative: YASUE Kanako, Aviation Technology Directorate, Aircraft Life Cycle Innovation Hub Contact Information: IKEDA Tomoaki(ikedat@chofu.jaxa.jp) Members: HIGASHIDA Hirokazu, HAYASHI Kenji, IKEDA Tomoaki, KANAYAMA Masatoshi, KISHI Yuki, SAIKI Hideji, YASUE Kanako Abstract We aim at the development of aerodynamics and noise computation techniques for the rotorcrafts by extensively applying the unstructured-grid CFD code FaSTAR-Move that utilizes an overset moving grid approach. By using unsteady・・・<<read more>>

Numerical analyses for CFD workshops

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JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23EDA201G27 Subject Category: Aeronautical Technology PDF Responsible Representative: Kazuyuki Nakakita, Aviation Technology Directorate, Aircraft Lifecycle Innovation Hub Contact Information: Andrea Sansica(sansica.andrea@jaxa.jp) Members: Kenji Hayashi, David Lusher, Tomoaki Matsuzaki, Yoimi Kojima, Andrea Sansica, Markus Zauner Abstract JAXA’s Ninth Aerodynamic Prediction Challenge(https://cfdws.chofu.jaxa.jp/apc/apc9/) was held to investigate the aerodynamic characteristics of the NASA Common Research Model High-Lift (CRM-HL) configuration taking wind-tunnel walls into consideration. We calculated the CRM-HL characteristics with RANS/URANS and Hybrid・・・<<read more>>

Research of numerical prediction for the flight stability

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JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23EDA201G26 Subject Category: Aeronautical Technology PDF Responsible Representative: Kazuyuki Nakakita, Aeronarutical Technology Directorate, Aircraft Life Cycle Innovation Hub Contact Information: Yoimi Kojima(kojima.yoimi@jaxa.jp) Members: Katsuhito Kozawa, Yoimi Kojima, Hideji Saiki Abstract The flight stability of aircraft is necessary to establish safe flight. We aim to improve the technology level of flight stability prediction through numerical simulation. The numerical method is validated and analyzed for developing better numerical tools. Reference URL N/A・・・<<read more>>

Numerical Prediction of aerodynamic characteristics over the eVTOL Configurations

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JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23EDA201G25 Subject Category: Aeronautical Technology PDF Responsible Representative: Kanako Yasue Contact Information: Kanako Yasue(yasue.kanako@jaxa.jp) Members: Masatoshi Kanayama, Yuki Kishi, Atsushi Shinozuka, Masayuki Sasaki, Kanako Yasue Abstract Various types of eVTOL (electric vertical take-off and landing aircraft) have been proposed to develop new mobility markets such as air taxis, and global competition is intensifying. However, the development history of eVTOL is relatively short, and there is little data for designing products・・・<<read more>>

Research and development of fluid analysis tools using GPU

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JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23EDA201G24 Subject Category: Aeronautical Technology PDF Responsible Representative: Kazuyuki Nakakita, Aviation Technology Directorate, Aircraft Lifecycle Innovation Hub Contact Information: Andrea Sansica(sansica.andrea@jaxa.jp) Members: David Lusher, Yuya Ohmichi, Andrea Sansica, Markus Zauner Abstract FaSTAR’s default routine calculations were accelerated with OpenACC. We analyze High-Lift configuration of the NASA CRM aircraft (CRM-HL) at low-speed stall conditions using GPU-based FaSTAR. For buffet analysis, we performed GPU-based calculations using the OpenSBLI code. Reference URL N/A・・・<<read more>>