Coupled Richtmyer-Meshkov and Kelvin-Helmholtz instability on a shock-accelerated inclined single-mode interface
文献类型：期刊论文
| 作者 | Cao, Qing2; Li, Jiaxuan2; Wang, He2; Zhai, Zhigang2; Luo XS(罗喜胜)1,2 |
| 刊名 | JOURNAL OF FLUID MECHANICS
 |
| 出版日期 | 2024-10-02 |
| 卷号 | 996页码:24 |
| 关键词 | shock waves |
| ISSN号 | 0022-1120 |
| DOI | 10.1017/jfm.2024.710 |
| 通讯作者 | Wang, He(ustchewang@ustc.edu.cn) ; Zhai, Zhigang(sanjing@ustc.edu.cn) |
| 英文摘要 | The coupling of Richtmyer-Meshkov instability (RMI) and Kelvin-Helmholtz instability (KHI), referred to as RM-KHI, on a shock-accelerated inclined single-mode air-SF6 interface is studied through shock-tube experiments, focusing on the evolution of the perturbation distributed along the inclined interface. To clearly capture the linear (overall linear to nonlinear) evolution of RM-KHI, a series of experiments with a weak (relatively strong) incident shock is conducted. For each series of experiments, various theta(i )(angle between incident shock and equilibrium position of the initial interface) are considered. The nonlinear flow features manifest earlier and develop faster when theta(i) is larger and/or shock is stronger. In addition, the interface with theta(i)>0(degrees) evolves obliquely along its equilibrium position under the effect of KHI. RMI dominates the early-time amplitude evolution regardless of theta(i) and shock intensity, which arises from the discrepancy in the evolution laws between RMI and KHI. KHI promotes the post-early-stage amplitude growth and its contribution is related positively to theta(i). An evident exponential-like amplitude evolution behaviour emerges in RM-KHI with a relatively strong shock and large theta(i). The linear model proposed by Mikaelian (Phys. Fluids, vol. 6, 1994, pp. 1943-1945) is valid for RM-KHI within the linear period. In contrast, the adaptive vortex model (Sohn et al., Phys. Rev. E, vol. 82, 2010, p. 046711) can effectively predict both the interface morphology and overall amplitude evolutions from the linear to nonlinear regimes. |
| 分类号 | 一类/力学重要期刊 |
| WOS关键词 | WAVE REFRACTION PATTERNS ; RAYLEIGH-TAYLOR ; SURFACE-TENSION ; MACH NUMBER ; TRANSITION ; EVOLUTION ; PLANAR |
| 资助项目 | National Natural Science Foundation of China[12102425] ; National Natural Science Foundation of China[12372281] ; National Natural Science Foundation of China[12388101] ; Youth Innovation Promotion Association CAS ; Fundamental Research Funds for the Central Universities ; Young Elite Scientists Sponsorship Program by CAST[2023QNRC001] |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001326776200001 |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Fundamental Research Funds for the Central Universities ; Young Elite Scientists Sponsorship Program by CAST |
| 其他责任者 | Wang, He ; Zhai, Zhigang |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/96919]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 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 | Cao, Qing,Li, Jiaxuan,Wang, He,et al. Coupled Richtmyer-Meshkov and Kelvin-Helmholtz instability on a shock-accelerated inclined single-mode interface[J]. JOURNAL OF FLUID MECHANICS,2024,996:24. |
| APA | Cao, Qing,Li, Jiaxuan,Wang, He,Zhai, Zhigang,&罗喜胜.(2024).Coupled Richtmyer-Meshkov and Kelvin-Helmholtz instability on a shock-accelerated inclined single-mode interface.JOURNAL OF FLUID MECHANICS,996,24. |
| MLA | Cao, Qing,et al."Coupled Richtmyer-Meshkov and Kelvin-Helmholtz instability on a shock-accelerated inclined single-mode interface".JOURNAL OF FLUID MECHANICS 996(2024):24. |
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来源：力学研究所
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