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

doi:10.1103/PhysRevFluids.9.124301

	Shock-induced instability of dual-layer dilute gas-particle mixture
	He, Yifeng 1,2; Meng BQ(孟宝清)3,4; Tian, Baolin2,5 ; Yang, Yue1,2
通讯作者	Yang, Yue([email protected])
发表期刊	PHYSICAL REVIEW FLUIDS
	2024-12-03
卷号	9 期号:12 页码:20
ISSN	2469-990X
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.
DOI	10.1103/PhysRevFluids.9.124301
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001380533800004
关键词[WOS]	RICHTMYER-MESHKOV INSTABILITIES ; RAYLEIGH-TAYLOR ; NUMERICAL SIMULATIONS ; ADDED-MASS ; TRANSITION ; MODEL ; FLOW
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
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]
项目资助者	National Natural Science Foundation of China ; National Key R&D Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences
论文分区	二类
力学所作者排名	2
RpAuthor	Yang, Yue
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/98007
专题	高温气体动力学国家重点实验室
作者单位	1.Peking Univ, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China; 2.Peking Univ, HEDPS CAPT, Beijing 100871, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China; 5.Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, 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.Rp_Au:Yang, Yue
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.