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Shock-tube experiments on strong-shock-driven single-mode Richtmyer-Meshkov instability

文献类型：期刊论文

作者Si, Ting2; Jiang, Shuaishuai2; Cai, Wei2; Wang, He2; Luo, Xisheng1,2
刊名JOURNAL OF FLUID MECHANICS
出版日期2025-03-03
卷号1006页码:13
关键词shock waves
ISSN号0022-1120
DOI10.1017/jfm.2025.36
通讯作者Wang, He(ustchewang@ustc.edu.cn)
英文摘要We report the first shock-tube experiments on Richtmyer-Meshkov instability at a single-mode light-heavy interface accelerated by a strong shock wave with Mach number higher than 3.0. Under the proximity effect of the transmitted shock and its induced secondary compression effect, the interface profile is markedly different from that in weakly compressible flows. For the first time, the validity of the compressible linear theory and the failure of the impulsive model in predicting the linear amplitude evolution in highly compressible flows are verified through experiments. Existing nonlinear and modal models fail to accurately describe the perturbation evolution, as they do not account for the shock proximity and secondary compression effects on interface evolution. The shock proximity effect manifests mainly in the early stages when the transmitted shock remains close to the interface, while the effect of secondary compression manifests primarily at the period when interactions of transverse shocks occur at the bubble tips. Based on these findings, we propose an empirical model capable of predicting the bubble evolution in highly compressible flows.
WOS关键词COMBUSTION ; EVOLUTION
资助项目National Natural Science Foundation of China[12027801] ; National Natural Science Foundation of China[12102425] ; National Natural Science Foundation of China[12472228] ; National Natural Science Foundation of China[12388101] ; Chinese Academy of Sciences Project for Young Scientists in Basic Research[YSBR-087] ; 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:001435682800001
资助机构National Natural Science Foundation of China ; Chinese Academy of Sciences Project for Young Scientists in Basic Research ; Fundamental Research Funds for the Central Universities ; Young Elite Scientists Sponsorship Program by CAST
源URL[http://dspace.imech.ac.cn/handle/311007/100223]  
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Wang, He
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		 Si, Ting,Jiang, Shuaishuai,Cai, Wei,et al. Shock-tube experiments on strong-shock-driven single-mode Richtmyer-Meshkov instability[J]. JOURNAL OF FLUID MECHANICS,2025,1006:13.
APA Si, Ting,Jiang, Shuaishuai,Cai, Wei,Wang, He,&Luo, Xisheng.(2025).Shock-tube experiments on strong-shock-driven single-mode Richtmyer-Meshkov instability.JOURNAL OF FLUID MECHANICS,1006,13.
MLA Si, Ting,et al."Shock-tube experiments on strong-shock-driven single-mode Richtmyer-Meshkov instability".JOURNAL OF FLUID MECHANICS 1006(2025):13.

入库方式： OAI收割

来源：力学研究所

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