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Manipulation of single-mode perturbation growth driven by co-directional rarefaction and shock waves

文献类型：期刊论文

作者Zhai, Zhigang1; Gao, Xing1; Li, Yue1; Guo, Xu1; Luo XS(罗喜胜)1,2
刊名JOURNAL OF FLUID MECHANICS
出版日期2025-07-18
卷号1015页码:21
关键词shock waves
ISSN号0022-1120
DOI10.1017/jfm.2025.10302
通讯作者Guo, Xu(clguoxu@ustc.edu.cn)
英文摘要Rayleigh-Taylor (RT) stability occurs when a single-mode light/heavy interface is accelerated by rarefaction waves, exhibiting a sustained oscillation in perturbation amplitude. If the perturbation is accelerated again by a shock propagating in the same direction as the rarefaction waves, the interface evolution will shift from RT stability to Richtmyer-Meshkov (RM) instability. Depending upon the interface state when the shock arrives, the perturbation growth can be actively manipulated through controlling the magnitudes of vorticity deposited by rarefaction and shock waves. The present work first theoretically analyses the 12 different growth possibilities of a light/heavy interface accelerated by co-directional rarefaction and shock waves. A theoretical model is established by combining the RT growth rate with the RM growth rate, providing the conditions for the different possibilities of the perturbation growth. Based on the model, extensive experiments are designed and conducted in the specially designed rarefaction-shock tube. By precisely controlling the shock arrival time at the interface, the different growth possibilities, including promotion, reduction and freeze-out, are realised in experiments. This work verifies the feasibility of manipulating the light/heavy perturbation via co-directional rarefaction and shock waves, which sheds light on control of hydrodynamic instabilities in practical applications.
分类号一类/力学重要期刊
WOS关键词RICHTMYER-MESHKOV INSTABILITIES ; RAYLEIGH-TAYLOR
资助项目National Natural Science Foundation of China[12302371] ; National Natural Science Foundation of China[12372281] ; National Natural Science Foundation of China[12388101] ; Youth Innovation Promotion Association CAS, the Strategic Priority Research Program of Chinese Academy of Sciences[XDB0620201] ; Fundamental Research Funds for the Central Universities[WK2090000048]
WOS研究方向Mechanics ; Physics
语种英语
WOS记录号WOS:001530880400001
资助机构National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS, the Strategic Priority Research Program of Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities
其他责任者Guo, Xu
源URL[http://dspace.imech.ac.cn/handle/311007/102095]  
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.Univ Sci & Technol China, Dept Modern Mech, Adv Prop Lab, Hefei 230026, Peoples R China;
2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Zhai, Zhigang,Gao, Xing,Li, Yue,et al. Manipulation of single-mode perturbation growth driven by co-directional rarefaction and shock waves[J]. JOURNAL OF FLUID MECHANICS,2025,1015:21.
APA Zhai, Zhigang,Gao, Xing,Li, Yue,Guo, Xu,&罗喜胜.(2025).Manipulation of single-mode perturbation growth driven by co-directional rarefaction and shock waves.JOURNAL OF FLUID MECHANICS,1015,21.
MLA Zhai, Zhigang,et al."Manipulation of single-mode perturbation growth driven by co-directional rarefaction and shock waves".JOURNAL OF FLUID MECHANICS 1015(2025):21.

入库方式： OAI收割

来源：力学研究所

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