| Study on aerodynamic loads at the inlet's cowl lip induced by multiple shock-shock interferences | |
Lin MY(林明月)1,2; Yang F(杨帆)1,2; Hu ZM(胡宗民)1,2 ; Han GL(韩桂来)1,2
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| Corresponding Author | Hu, Zongmin([email protected]) |
| Source Publication | ACTA MECHANICA SINICA
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| 2024-04-01 | |
| Volume | 40Issue:4Pages:12 |
| ISSN | 0567-7718 |
| Abstract | For hypersonic vehicles powered by air-breathing propulsion, multiple shock-shock interferences (MSSI) tend to induce extreme aerodynamic loads at the inlet's cowl lip, imposing higher requirements on the design of the vehicle's thermal protection system. This study provides a detailed theoretical and numerical prediction on the aerodynamic loads for MSSI created by two incident oblique shock waves intersecting with the bow shock wave. Concomitant jet (CJ) and dual jet (DJ) are the two main configurations of MSSI, respectively, corresponding to the case where a slip line or a subsonic region separates the two incident-shock-induced supersonic jets. The theoretical analysis indicates that the peak pressure amplification in the DJ mode is almost twice that of the CJ mode under the same boundary conditions. Inviscid transient numerical simulations are carried out to validate the theoretical findings. The numerical results verify the relative relationship between the magnitude of the surface peak pressures induced by different interference patterns given by the theoretical analysis. It is found that the theoretically predicted surface peak pressure is slightly lower than the numerical calculations. The DJ configuration consisting of two type IV supersonic jets is numerically confirmed in this paper. |
| Keyword | Shock waves Shock-shock interaction Theoretical analysis Hysteresis |
| DOI | 10.1007/s10409-023-23279-x |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:001210386100001 |
| WOS Keyword | SHOCK/SHOCK INTERFERENCES ; FLOW ; BODIES ; WAVES |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Funding Project | National Key Research and Development Plan of China[2019YFA0405204] ; National Natural Science Foundation of China[12172365] ; National Natural Science Foundation of China[12072353] ; National Natural Science Foundation of China[12132017] |
| Funding Organization | National Key Research and Development Plan of China ; National Natural Science Foundation of China |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | Hu, Zongmin |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/95074 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Lin MY,Yang F,Hu ZM,et al. Study on aerodynamic loads at the inlet's cowl lip induced by multiple shock-shock interferences[J]. ACTA MECHANICA SINICA,2024,40,4,:12.Rp_Au:Hu, Zongmin |
| APA | 林明月,杨帆,胡宗民,&韩桂来.(2024).Study on aerodynamic loads at the inlet's cowl lip induced by multiple shock-shock interferences.ACTA MECHANICA SINICA,40(4),12. |
| MLA | 林明月,et al."Study on aerodynamic loads at the inlet's cowl lip induced by multiple shock-shock interferences".ACTA MECHANICA SINICA 40.4(2024):12. |
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