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Shock-induced instability of dual-layer dilute gas-particle mixture

文献类型：期刊论文

作者He, Yifeng4,5; Meng BQ(孟宝清)2,3; Tian, Baolin1,4; Yang, Yue4,5
刊名PHYSICAL REVIEW FLUIDS
出版日期2024-12-03
卷号9期号:12页码:20
ISSN号2469-990X
DOI10.1103/PhysRevFluids.9.124301
通讯作者Yang, Yue(yyg@pku.edu.cn)
英文摘要We investigate the two-dimensional shock-induced instability of a dual-layer gas- particle (DLGP) mixture, with particle volume fractions on the order of 10-3 and moderate mass loading at the initial time. We elucidate the mechanism underlying the instability in the DLGP mixture using vorticity budgets, wave system analysis, and particle dynamics. The mechanism is distinct from that in the dual-layer gas (DLG) mixture. In the DLG mixture, the shock-induced instability is driven by the baroclinic vorticity. By contrast, in the DLGP mixture, the vorticity budgets suggest that the instability is not triggered by the baroclinic vorticity, because its contribution is negligible. Instead, the shock-induced instability in the DLGP mixture is induced by the pressure perturbation near the perturbed interface. The particle dynamics show that the velocity difference in particles near the perturbed interface is driven by the velocity difference in gas through the drag force. Thus, the velocity difference in- gas induced by the pressure perturbation drives the particle interface to grow via dragcoupling effects. Inspired by the interfacial instability mechanism, we estimate the growth of the particle interface in the linear stage. The model incorporates the multiphase Atwood number and the Stokes number, and well captures the linear growth rate of the particle-phase interface amplitude at moderate Atwood and Stokes numbers.
分类号二类
WOS关键词RICHTMYER-MESHKOV INSTABILITIES ; RAYLEIGH-TAYLOR ; NUMERICAL SIMULATIONS ; ADDED-MASS ; TRANSITION ; MODEL ; FLOW
资助项目National Natural Science Foundation of China[11988102] ; National Natural Science Foundation of China[11925201] ; National Natural Science Foundation of China[12472262] ; National Natural Science Foundation of China[12432012] ; National Key R&D Program of China[2020YFE0204200] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB0620203]
WOS研究方向Physics
语种英语
WOS记录号WOS:001380533800004
资助机构National Natural Science Foundation of China ; National Key R&D Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences
其他责任者Yang, Yue
源URL[http://dspace.imech.ac.cn/handle/311007/98006]  
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.Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China;
3.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China;
4.Peking Univ, HEDPS CAPT, Beijing 100871, Peoples R China;
5.Peking Univ, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China;
推荐引用方式
GB/T 7714		 He, Yifeng,Meng BQ,Tian, Baolin,et al. Shock-induced instability of dual-layer dilute gas-particle mixture[J]. PHYSICAL REVIEW FLUIDS,2024,9(12):20.
APA He, Yifeng,孟宝清,Tian, Baolin,&Yang, Yue.(2024).Shock-induced instability of dual-layer dilute gas-particle mixture.PHYSICAL REVIEW FLUIDS,9(12),20.
MLA He, Yifeng,et al."Shock-induced instability of dual-layer dilute gas-particle mixture".PHYSICAL REVIEW FLUIDS 9.12(2024):20.

入库方式： OAI收割

来源：力学研究所

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