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Research on aircraft cabin noise reduction

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JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23EDA201C00 Subject Category: Aeronautical Technology PDF Responsible Representative: Kenichiro Nagai, Aviation Technology Directorate, Aviation Environmental SustainabiAviation Environmental Sustainability Innovation Hub Contact Information: Takashi Takahashi(takahashi.takashi@jaxa.jp) Members: Keita Nakamoto, Takashi Takahashi Abstract This research focuses on the development of our cabin noise prediction tool using the Finite-Difference Time-Domain method, and in-flight noise measurement in the JAXA's Jet-Flying Test Bed (FTB) "HISHO" with the aim of grasping the cabin noise characteristics. Reference URL・・・<<read more>>

Analyses of Hypersonic Flows around Capsules and Attitude Instability of Capsules

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JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23EDA201A32 Subject Category: Aeronautical Technology PDF Responsible Representative: Kenji Fujii, Aviation Technology Directorate, Fundamental Aeronautics Research Unit Contact Information: Takashi Ozawa(ozawa.takashi@jaxa.jp) Members: Takashi Ozawa, Yoshihiro Shimizu, Takaki Uwazumi Abstract In this study, we try to enhance physical models for high temperature gas and numerical simulation method to accurately predict heating and aerodynamic characteristics at atmospheric entry. We aim to develop high fidelity simulation tool by demonstrating improvement of prediction accuracy・・・<<read more>>

Research and Development of Emission Free Aircraft Technologies

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JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23EDA102H01 Subject Category: Aeronautical Technology PDF Responsible Representative: Akira Nishizawa, Aeronautical Technology Directorate Contact Information: Yuzuru Yokokawa(yokokawa.yuzuru@jaxa.jp) Members: Masaya Funada, Atsushi Hashimoto, Hiroshi Kobayashi, Taisuke Nambu, Takayuki Sakurai, Keisuke Sugaya, Yoshiharu Tamaki, Hirotaka Tsutsui, Keiji Ueshima, Kanako Yasue, Yuzuru Yokokawa Abstract With the ultimate goal of achieving emission-free (zero emissions) aircraft, research and development of electric hybrid propulsion system is conducted, which includes the WAT(Wake Adaptive Thruster) fans at the・・・<<read more>>

Application of the Cartesian grid and an IB method to the analysis of aircraft engine combustors

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JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23EDA102G31 Subject Category: Aeronautical Technology PDF Responsible Representative: Daisuke Nambu, Contact Information: Taisuke Nambu, Aviation Technology Directorate, Aircraft Lifecycle Innovation Hub(nambu.taisuke@jaxa.jp) Members: Dan Hori, Manabu Hisida, Ryohei Kirihara, Takuya Karatsu, Takuhito Kuwabara, Yasuhiro Mizobuchi, Taisuke Nambu, Kei Shimura, Hiroki Yao, Satoshi Atsuchi, Naoki Tani Abstract Enabling to conduct numerical analysis of thermal fluid phenomena within aircraft engine combustors using HINOCA-AE ensuring reasonable TAT (Turn Around Time) and accuracy, the potential・・・<<read more>>

Aeroelastic Analysis for Rotocraft

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JAXA Supercomputer System Annual Report February 2023-January 2024 Report Number: R23EDA102C21 Subject Category: Aeronautical Technology PDF Responsible Representative: Kanako, Yasue, Aviation Technology Directorate, Aircraft Lifecycle Innovation Hub Contact Information: Hideaki Sugawara(sugawara.hideaki@jaxa.jp) Members: Keita Kimura, Hideaki Sugawara, Yasutada Tanabe Abstract The aeroelastic deformation of helicopter rotor blades affects the vibration and stability of the helicopter. The simulation technology is required to evaluate the aeroelastic deformation in the rotorcraft design. In this work, the research and development of aeroelastic analysis technology for・・・<<read more>>