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Type I to type II transition in swept-forward fin shock interactions

文献类型：期刊论文

作者Yang J(杨靖)1,2; Cui K(崔凯)1,2; Tian ZW(田中伟)1,2; Li GL(李广利)1,2; Xiao Y(肖尧)1,2; Chang SY(常思源)1,2
刊名PHYSICS OF FLUIDS
出版日期2025-02-01
卷号37期号:2
ISSN号1070-6631
DOI10.1063/5.0249954
英文摘要The transition from type I to II in the swept-forward fin-shock interaction is studied both numerically and analytically. The transition conditions are numerically obtained using an inviscid computational fluid dynamics method. The results are compared with the classical three-shock theory, in which the detachment criteria are computed based on the parameters immediately after the shock. A discrepancy is observed, where the critical swept-forward angles from the numerical results are always larger, with a maximum deviation of 5 degrees. Detailed flow patterns indicate this deviation is caused by the downstream of the bow shock wave. By analyzing the shock patterns in a wide range of both the inclined shock angles and the swept-forward angles, three mechanisms are identified. The first mechanism is related to the Mach reflection formed by a transmitted shock reflecting on the wall. When the top of the Mach stem reaches the fin-shock interacting point, the interaction transits from type I to II. The second is associated with a secondary transmitted shock wave achieving its maximum deflection angle. The last is due to the subsonic channel linking the symmetric and lateral planes. The quantities of the advanced transition are derived theoretically and in good agreement with the numerical results. The results have potential to benefit the aerodynamics and aerothermodynamics design of hypersonic vehicles.
分类号一类/力学重要期刊
WOS研究方向Mechanics ; Physics, Fluids & Plasmas ; Physics
语种英语
WOS记录号WOS:001427152800006
资助机构This work was supported by the Chinese Academy of Sciences Foundation Frontier Scientific Research Program (Grant No. ZDBS-LY-JSC005).
其他责任者田中伟
源URL[http://dspace.imech.ac.cn/handle/311007/101455]  
专题力学研究所_高温气体动力学国家重点实验室
宽域飞行工程科学与应用中心
作者单位1.Institute of Mechanics, CAS;
2.University of Chinese Academy of Sciences, CAS
推荐引用方式
GB/T 7714		 Yang J,Cui K,Tian ZW,et al. Type I to type II transition in swept-forward fin shock interactions[J]. PHYSICS OF FLUIDS,2025,37(2).
APA 杨靖,崔凯,田中伟,李广利,肖尧,&常思源.(2025).Type I to type II transition in swept-forward fin shock interactions.PHYSICS OF FLUIDS,37(2).
MLA 杨靖,et al."Type I to type II transition in swept-forward fin shock interactions".PHYSICS OF FLUIDS 37.2(2025).

入库方式： OAI收割

来源：力学研究所

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