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Asymptotic matching modal model on Richtmyer-Meshkov instability

文献类型：期刊论文

作者Li JX(李佳轩)2; Chen, Chenren2; Zhai ZG(翟志刚)1,2; Luo XS(罗喜胜)1,2
刊名JOURNAL OF FLUID MECHANICS
出版日期2024-12-26
卷号1002页码:22
关键词shock waves
ISSN号0022-1120
DOI10.1017/jfm.2024.1125
通讯作者Zhai, Zhigang(sanjing@ustc.edu.cn) ; Luo, Xisheng(xluo@ustc.edu.cn)
英文摘要An asymptotic matching modal model is established based on the singular perturbation method for predicting mode evolution in single- and dual-mode interfaces accelerated by a shock wave. The startup process is incorporated into the model to provide a complete description of the mode evolution after the shock impact. Through considering the feedback from high-order harmonic to the third-order harmonic, the model accuracy is improved and the model divergence is prevented. In addition, the model can evaluate the mutual-coupling effect on the amplitude variations of high-order harmonics besides the 'beat modes'. To validate the model, experiments on both light-heavy and heavy-light interfaces subject to a shock wave are conducted, and both single- and dual-mode interfaces formed by the soap-film technique are involved. The interface profiles extracted from mode decomposition and predicted by the model show high consistency with the experimental counterparts. Good agreement of the mode amplitude growths between the experiments and theoretical predictions shows the superiority of the model, especially for the heavy-light interface.
分类号一类/力学重要期刊
WOS关键词INTERFACE ; STABILITY ; GROWTH
资助项目National Natural Science Foundation of China[12372281] ; National Natural Science Foundation of China[12388101] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB0620201] ; Youth Innovation Promotion Association CAS
WOS研究方向Mechanics ; Physics
语种英语
WOS记录号WOS:001382755100001
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS
其他责任者Zhai, Zhigang ; Luo, Xisheng
源URL[http://dspace.imech.ac.cn/handle/311007/98015]  
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		 Li JX,Chen, Chenren,Zhai ZG,et al. Asymptotic matching modal model on Richtmyer-Meshkov instability[J]. JOURNAL OF FLUID MECHANICS,2024,1002:22.
APA 李佳轩,Chen, Chenren,翟志刚,&罗喜胜.(2024).Asymptotic matching modal model on Richtmyer-Meshkov instability.JOURNAL OF FLUID MECHANICS,1002,22.
MLA 李佳轩,et al."Asymptotic matching modal model on Richtmyer-Meshkov instability".JOURNAL OF FLUID MECHANICS 1002(2024):22.

入库方式： OAI收割

来源：力学研究所

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