Interfacial instabilities driven by co-directional rarefaction and shock waves
文献类型：期刊论文
| 作者 | Gao, Xing2; Guo, Xu2; Zhai, Zhigang2; Luo, Xisheng1,2 |
| 刊名 | JOURNAL OF FLUID MECHANICS
 |
| 出版日期 | 2024-01-31 |
| 卷号 | 980页码:27 |
| ISSN号 | 0022-1120 |
| 关键词 | shock waves |
| DOI | 10.1017/jfm.2024.24 |
| 通讯作者 | Guo, Xu(clguoxu@ustc.edu.cn) ; Zhai, Zhigang(sanjing@ustc.edu.cn) |
| 英文摘要 | We report the first experiments on hydrodynamic instabilities of a single-mode light/heavy interface driven by codirectional rarefaction and shock waves. The experiments are conducted in a specially designed rarefaction-shock tube that enables the decoupling of interfacial instabilities caused by these co-directional waves. After the impacts of rarefaction and shock waves, the interface evolution transitions into Richtmyer-Meshkov unstable states from Rayleigh-Taylor (RT) stable states, which is different from the finding in the previous case with counter-directional rarefaction and shock waves. A scaling method is proposed, which effectively collapses the RT stable perturbation growths. An analytical theory for predicting the time-dependent acceleration and density induced by rarefaction waves is established. Based on the analytical theory, the model proposed by Mikaelian (Phys. Fluids, vol. 21, 2009, p. 024103) is revised to provide a good description of the dimensionless RT stable behaviour. Before the shock arrival, the unequal interface velocities, caused by rarefaction-induced uneven vorticity, result in a V-shape-like interface. The linear growth rate of the amplitude is insensitive to the pre-shock interface shape, and can be well predicted by the linear superposition of growth rates induced by rarefaction and shock waves. The nonlinear growth rate is higher than that of a pure single-mode case, which can be predicted by the nonlinear models (Sadot et al., Phys. Rev. Lett., vol. 80, 1998, pp. 1654-1657; Dimonte & Ramaprabhu, Phys. Fluids, vol. 22, 2010, p. 014104). |
| WOS关键词 | RICHTMYER-MESHKOV INSTABILITY ; HIGH MACH NUMBER ; SINGLE-MODE ; RAYLEIGH-TAYLOR ; NONLINEAR-THEORY ; ACCELERATION ; TRANSITION ; SIMULATION ; EVOLUTION ; VELOCITY |
| 资助项目 | National Natural Science Foundation of China[12302371] ; National Natural Science Foundation of China[12372281] ; National Natural Science Foundation of China[91952205] ; Fundamental Research Funds for the Central Universities[WK2090000048] ; China Postdoctoral Science Foundation[2022M723041] |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001153024500001 |
| 资助机构 | National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; China Postdoctoral Science Foundation |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/94378]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 通讯作者 | Guo, Xu; Zhai, Zhigang |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 2.Univ Sci & Technol China, Dept Modern Mech, Adv Prop Lab, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Xing,Guo, Xu,Zhai, Zhigang,et al. Interfacial instabilities driven by co-directional rarefaction and shock waves[J]. JOURNAL OF FLUID MECHANICS,2024,980:27. |
| APA | Gao, Xing,Guo, Xu,Zhai, Zhigang,&Luo, Xisheng.(2024).Interfacial instabilities driven by co-directional rarefaction and shock waves.JOURNAL OF FLUID MECHANICS,980,27. |
| MLA | Gao, Xing,et al."Interfacial instabilities driven by co-directional rarefaction and shock waves".JOURNAL OF FLUID MECHANICS 980(2024):27. |
入库方式： OAI收割
来源：力学研究所
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