拡大流路内の擬似衝撃波の数値シミュレーション
| Autor: | Han, Minho, Kawatsu, Kaname, Kumasaka, Tsuyoshi, Amano, Masahiro, Takita, Kenichi, Masuya, Goro |
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| Jazyk: | japonština |
| Rok vydání: | 2005 |
| Předmět: | |
| Zdroj: | 宇宙航空研究開発機構特別資料: 航空宇宙数値シミュレーション技術シンポジウム2004論文集 = JAXA Special Publication: Proceedings of Aerospace Numerical Simulation Symposium 2004. :218-223 |
| ISSN: | 1349-113X |
| Popis: | In the combustor of the dual-mode ramjet engine, a Pseudo-Shock Wave (PSW), mixing and combustion are closely coupled with one another and cause complicated interactive phenomena. It is difficult to clarify the relation between the heat added by high temperature jet and the formation of the PSW only by experiment. In the present study, the PSW produced by the high temperature jet in constant area square duct was investigated by both experiment and numerical simulation to clarify the relation between the heat addition by the high temperature jet and the formation of the PSW and the PSW created by the backpressure of the test section in diverging duct which resemble shape of the combustor was investigated by numerical simulation to research the structures of the PSW and the changes of flow in diverging duct. Numerical simulations were carried out for three-dimensional configurations. The governing equations are the Navier-Stokes equations with the k-omega SST two-equations turbulence model and the chemical reaction did not consider in this numerical simulations. This paper describes about the behavior of the PSW produced by the high temperature jet and the detail of the interaction between the high temperature plume and the low temperature supersonic flow based on the experimental and computational results, and the structures of the PSW produced by the backpressure of the test section and the asymmetric characteristic of flow in diverging duct based on the computational results. 資料番号: AA0048469037 レポート番号: JAXA-SP-04-012 |
| Databáze: | OpenAIRE |
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