Prediction of Pressure Loss in Injector for Rotating Detonation Engines Using Single-element Simulations
| Autor: | SUZUKI, Tomohito, MATSUO, Akiko, DAIMON, Yu, KAWASHIMA, Hideto, KAWASAKI, Akira, MATSUOKA, Ken, KASAHARA, Jiro |
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| Jazyk: | japonština |
| Rok vydání: | 2021 |
| Zdroj: | 宇宙航空研究開発機構特別資料: 流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2020オンライン論文集 = JAXA Special Publication: Proceedings of Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2020 Online. :165-171 |
| ISSN: | 2433-2232 |
| Popis: | 流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2020オンライン (2020年9月28日-30日. 日本航空宇宙学会 : 宇宙航空研究開発機構(JAXA)オンライン会議) Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2020 Online (September 28-30, 2020. The Japan Society for Aeronautical and Space Sciences : Japan Aerospace Exploration Agency (JAXA), Online meeting) Prediction of pressure loss in the injector for rotating detonation engine (RDE) needs to reproduce friction loss, entry loss, and shock wave back-propagation in injectors. This is challenging because calculation cost is high when whole region of RDE is studied. This paper proposes a new prediction method, ''single-element simulation'' to estimate pressure loss in injector with lower computational load. The calculation domain is limited to single-element of injector and its plenum in this method. The time-evolving boundary condition at injector outlet gives the effects of combustion chamber including the detonation propagation. In this paper, the single-element simulations are carried out for the rectangle injector and the chamfered injector for validation of the new method. The error of pressure loss prediction is less than 0.6%, which is 32-50 times faster than full-scale simulation. 形態: カラー図版あり Physical characteristics: Original contains color illustrations 資料番号: AA2030013022 レポート番号: JAXA-SP-20-008 |
| Databáze: | OpenAIRE |
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