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Finite-thickness effect of the fluids on bubbles and spikes in Richtmyer-Meshkov instability for arbitrary Atwood numbers
Liu WH; Yu ZP(于长平); Wang P; Fu Z; Wang LL; Chen YL
Source PublicationPLASMA SCIENCE & TECHNOLOGY
2019-02-01
Volume21Issue:2Pages:ARUNSP 025001
ISSN1009-0630
Abstract

This paper investigates the finite-thickness effect of two superimposed fluids on bubbles and spikes in Richtmyer-Meshkov instability (RMI) for arbitrary Atwood numbers by using the method of the small parameter expansion up to the second order. When the thickness of the two fluids tends to be infinity, our results can reproduce the classical results where RMI happens at the interface separating two semi-infinity-thickness fluids of different densities. It is found that the thickness has a large influence on the amplitude evolution of bubbles and spikes compared with those in classical RMI. Based on the thickness relationship of the two fluids, the thickness effect on bubbles and spikes for four cases is discussed. The thickness encourages (or reduces) the growth of bubbles or spikes, depending on not only Atwood number, but also the relationship of the thickness ratio of the heavy and light fluids, which is explicitly determined in this paper.

KeywordRichtmyer-Meshkov instability bubbles and spikes finite-thickness
DOI10.1088/2058-6272/aaee0c
Indexed BySCI ; EI
Language英语
WOS IDWOS:000453314600001
WOS KeywordRAYLEIGH-TAYLOR ; NONLINEAR EVOLUTION ; TARGETS
WOS Research AreaPhysics, Fluids & Plasmas
WOS SubjectPhysics
Funding OrganizationNational Natural Science Foundation of China [U1530261, 91852203, 11472278] ; Innovation Fund of Fundamental Technology Institute of All Value In Creation [JCY2015A005] ; Natural Science Foundation of Sichuan Province [18ZA0260, 2018JY0454] ; Natural Science Foundation of Mianyang Normal University [HX2017007, MYSY2017JC06, MYSY2018T004] ; National High-Tech Inertial Confinement Fusion Committee
CSCD IDCSCD:6415389
ClassificationQ4
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/78514
Collection高温气体动力学国家重点实验室
Affiliation1.{Liu, Wanhai} Mianyang Normal Univ, Res Ctr Computat Phys, Mianyang 621000, Peoples R China
2.{Yu, Changping} Chinese Acad Sci, Inst Mech, LHD, Beijing 100190, Peoples R China
3.{Wang, Pei、Fu, Zheng、Wang, Lili} Inst Appl Phys & Computat Math, Beijing 100190, Peoples R China
4.{Chen, Yulian} Lanzhou Resources & Environm Voc Tech Coll, Mech & Elect Engn Dept, Lanzhou 730021, Gansu, Peoples R China
Recommended Citation
GB/T 7714
Liu WH,Yu ZP,Wang P,et al. Finite-thickness effect of the fluids on bubbles and spikes in Richtmyer-Meshkov instability for arbitrary Atwood numbers[J]. PLASMA SCIENCE & TECHNOLOGY,2019,21(2):ARUNSP 025001.
APA Liu WH,Yu ZP,Wang P,Fu Z,Wang LL,&Chen YL.(2019).Finite-thickness effect of the fluids on bubbles and spikes in Richtmyer-Meshkov instability for arbitrary Atwood numbers.PLASMA SCIENCE & TECHNOLOGY,21(2),ARUNSP 025001.
MLA Liu WH,et al."Finite-thickness effect of the fluids on bubbles and spikes in Richtmyer-Meshkov instability for arbitrary Atwood numbers".PLASMA SCIENCE & TECHNOLOGY 21.2(2019):ARUNSP 025001.
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