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 | |
刊名 | PLASMA SCIENCE & TECHNOLOGY |
2019-02-01 | |
卷号 | 21期号:2页码:ARUNSP 025001 |
关键词 | Richtmyer-Meshkov instability bubbles and spikes finite-thickness |
ISSN号 | 1009-0630 |
DOI | 10.1088/2058-6272/aaee0c |
英文摘要 | 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. |
分类号 | Q4 |
WOS关键词 | RAYLEIGH-TAYLOR ; NONLINEAR EVOLUTION ; TARGETS |
WOS研究方向 | Physics, Fluids & Plasmas |
语种 | 英语 |
CSCD记录号 | CSCD:6415389 |
WOS记录号 | WOS:000453314600001 |
资助机构 | National 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 |
其他责任者 | Yu, CP |
内容类型 | 期刊论文 |
源URL | [http://dspace.imech.ac.cn/handle/311007/78514] |
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.{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 |
推荐引用方式 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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