2026-03-06T12:00:00Z https://jaxa.repo.nii.ac.jp/oai

oai:jaxa.repo.nii.ac.jp:00049158 2023-06-20T18:36:44Z 1398:1530:2254 1543:1874:2255 1887:1891 9:789:2223:2253

空気吸い込み式プラズマジェット噴射による極超音速空力特性制御に関する基礎研究 Fundamental Study on Hypersonic Aerodynamic Characteristics Control using Air-breathing Plasma Jet Blowing 下永, 祥史 渡邉, 保真 鈴木, 宏二郎 SHIMONAGA, Yoshifumi WATANABE, Yasumasa SUZUKI, Kojiro 第54回流体力学講演会/第40回航空宇宙数値シミュレーション技術シンポジウム (2022年6月29日-7月1日. いわて県民情報交流センター(アイーナ)), 盛岡市, 岩手 The 54th Fluid Dynamics Conference / the 40th Aerospace Numerical Simulation Symposium (June 29 - July 1, 2022. Iwate Citizen Information Exchange Center (Aiina)), Morioka, Iwate, Japan In the present study, the control method by plasma discharge for the flow around a body at a hypersonic speed was experimentally investigated. The flow control with plasma discharge is expected to have an advantage over the conventional method with control surfaces from viewpoints of response delay, peak aerodynamic heating and the increase in the drag. We chose the RPSJA (Ram-air Plasma Synthetic Jet Actuator) method, because of relatively high efficiency even in low density atmosphere due to the air intake in the upstream of the discharge chamber. The model with a diamond-shaped cross section was prepared for the experiment. A straight duct was made connecting the windward surface and leeward one in the longitudinal direction. The holes on the windward and leeward surfaces work as an inlet and an exhaust of RPSJA, respectively. A pair of electrodes were set in the middle of the duct to heat the air flow in it. The experiment was conducted at the UT Kashiwa Hypersonic Wind Tunnel at the freestream Mach number 7. The plasma discharge successfully occurred in a wide range of the attack angles from -10 to +10 degrees. The results of the pitot pressure measurement in the downstream, the schlieren picture, time history of discharge current, and so on are presented. 形態: カラー図版あり Physical characteristics: Original contains color illustrations 資料番号: AA2230023027 レポート番号: JAXA-SP-22-007 宇宙航空研究開発機構(JAXA) Japan Aerospace Exploration Agency (JAXA) 2023-02-17 jpn conference paper VoR https://jaxa.repo.nii.ac.jp/records/49158 2433-2232 宇宙航空研究開発機構特別資料: 第54回流体力学講演会/第40回航空宇宙数値シミュレーション技術シンポジウム論文集 JAXA Special Publication: Proceedings of the 54th Fluid Dynamics Conference / the 40th Aerospace Numerical Simulation Symposium JAXA-SP-22-007 323 329 https://jaxa.repo.nii.ac.jp/record/49158/files/AA2230023027.pdf application/pdf 5.6 MB 2023-02-17