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Prediction of Pressure Loss in Injector for Rotating Detonation Engines Using Single-element Simulations
- Source :
- 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
- Publication Year :
- 2021
- Publisher :
- 宇宙航空研究開発機構(JAXA), 2021.
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Abstract
- 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)<br />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)<br />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.<br />形態: カラー図版あり<br />Physical characteristics: Original contains color illustrations<br />資料番号: AA2030013022<br />レポート番号: JAXA-SP-20-008
Details
- Language :
- Japanese
- ISSN :
- 24332232
- Database :
- OpenAIRE
- Journal :
- 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
- Accession number :
- edsair.jairo.........d22b3ceac1998b84bbcdea98c8b78ad0