Rayleigh-Taylor instability of cylindrical water droplet induced by laser-produced cavitation bubble | |
Wang JZ(王静竹)1,2; Li HC(李泓辰)1,2; Guo WL(郭文璐)1,2; Wang Z(王展)1,2,3; Du TZ(杜特专)1,2,3; Wang YW(王一伟)1,2,3; Abe, Akihisa4; Huang CG(黄晨光)1,2,3 | |
通讯作者 | Wang, Yiwei(wangyw@imech.ac.cn) |
发表期刊 | JOURNAL OF FLUID MECHANICS |
2021-06-03 | |
卷号 | 919页码:27 |
ISSN | 0022-1120 |
摘要 | This study gives insights into the interfacial instability of water droplets through a combination of laboratory experiments, numerical simulations and analytical modelling. An experiment is conducted in a narrow gap between two plates to model the two-dimensional cylindrical geometry, and a pulsed laser beam is focused inside a water droplet to generate a cavitation bubble. Three distinct characteristics of droplet deformation can be observed: (i) splashing; (ii) ventilating; and (iii) a stable state. In addition, an analytical model considering the Rayleigh-Taylor instability and bubble oscillation is developed based on the assumption that fluid is inviscid and incompressible. The analytical model is solved to obtain a phase diagram describing three distinct phenomena. Two dimensionless parameters, (eta) over cap (ins) and (eta) over cap (sta), are used to determine the boundaries between different regimes. The parameter (eta) over cap (ins) is defined by the ratio of the perturbation amplitude to the difference between the droplet and bubble radii, whereas the other parameter (eta) over cap (sta) is defined by the ratio of the perturbation amplitude to the initial droplet radius. Interfacial instability is induced when the perturbed droplet surface penetrates the bubble boundary, namely, vertical bar(eta) over cap (ins)vertical bar >= 1. Splashing and ventilating phenomena occur for (eta) over cap (ins) >= and (eta) over cap (ins) <= -1, respectively. A stable state occurs when droplet fragmentation does not appear despite small-amplitude perturbations for (eta) over cap (sta) <= 0.1. There is a transition zone between the ventilating and stable state, which is bounded by (eta) over cap (ins) = -1 and (eta) over cap (sta). Finally, the phase diagram is verified by the experimental and numerical results. |
关键词 | bubble dynamics cavitation |
DOI | 10.1017/jfm.2021.401 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000657453000001 |
关键词[WOS] | FRAGMENTATION ; VAPORIZATION ; DYNAMICS ; COLLAPSE ; PLASMA ; FLOWS ; MODEL |
WOS研究方向 | Mechanics ; Physics |
WOS类目 | Mechanics ; Physics, Fluids & Plasmas |
论文分区 | 一类/力学重要期刊 |
力学所作者排名 | 1 |
RpAuthor | Wang, Yiwei |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/86905 |
专题 | 流固耦合系统力学重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China; 4.Kobe Univ, Grad Sch Maritime Sci, Kobe, Hyogo 6580022, Japan |
推荐引用方式 GB/T 7714 | Wang JZ,Li HC,Guo WL,et al. Rayleigh-Taylor instability of cylindrical water droplet induced by laser-produced cavitation bubble[J]. JOURNAL OF FLUID MECHANICS,2021,919:27. |
APA | 王静竹.,李泓辰.,郭文璐.,王展.,杜特专.,...&黄晨光.(2021).Rayleigh-Taylor instability of cylindrical water droplet induced by laser-produced cavitation bubble.JOURNAL OF FLUID MECHANICS,919,27. |
MLA | 王静竹,et al."Rayleigh-Taylor instability of cylindrical water droplet induced by laser-produced cavitation bubble".JOURNAL OF FLUID MECHANICS 919(2021):27. |
条目包含的文件 | 下载所有文件 | |||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Jp2021F294.pdf(3330KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
Lanfanshu学术 |
Lanfanshu学术中相似的文章 |
[王静竹]的文章 |
[李泓辰]的文章 |
[郭文璐]的文章 |
百度学术 |
百度学术中相似的文章 |
[王静竹]的文章 |
[李泓辰]的文章 |
[郭文璐]的文章 |
必应学术 |
必应学术中相似的文章 |
[王静竹]的文章 |
[李泓辰]的文章 |
[郭文璐]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论