文献类型：期刊文献

英文题名：Dynamics of a laser-induced buoyant bubble near a vertical rigid boundary

作者：Xu, Peng[1,2];Li, Bo[1,2,3];Ren, Zibo[1,2];Liu, Shuhong[1,2];Zuo, Zhigang[1,2]

第一作者：Xu, Peng

通讯作者：Liu, SH[1];Liu, SH[2]

机构：[1]Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China;[2]Tsinghua Univ, Dept Energy & Power Engn, Beijing 100084, Peoples R China;[3]Beijing Union Univ, Beijing Key Lab Informat Serv Engn, Beijing 100101, Peoples R China

第一机构：Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China

通讯机构：[1]corresponding author), Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China;[2]corresponding author), Tsinghua Univ, Dept Energy & Power Engn, Beijing 100084, Peoples R China.

年份：2023

卷号：8

期号：8

外文期刊名：PHYSICAL REVIEW FLUIDS

收录：;EI(收录号：20233514644728);WOS:【SCI-EXPANDED(收录号:WOS:001052922100002)】；

基金：We gratefully acknowledge inspiring discussions with C. Sun and M. Farhat, technical support by Y. Guo, and the help from our research group. We acknowledge financial support from the National Natural Science Foundation of China (NSFC, No. 52076120 and No. 52079066) , the State Key Laboratory of Hydroscience and Engineering (2019 -KY -04, and sklhse-2020-E-03, sklhse-2020-E- 05) , the Creative Seed Fund of Shanxi Research Institute for Clean Energy, Tsinghua University, and the R & amp;D Program of Beijing Municipal Education Commission (No. KM202211417011) .

语种：英文

外文关键词：Buoyancy

摘要：In this paper, systematical experiments are carried out to study the distinct behavior of a buoyant cavitation bubble near a vertical rigid boundary. Under the combined influence of gravity and the rigid boundary, the bubble centroid migrates rapidly when the bubble completely collapses, and a microjet of intermediate strength subsequently penetrates the bubble in the same inclined direction. By recalling the nondimensional form of the Kelvin impulses, or the pressure anisotropy parameters, we analytically predict the angle between the jet and the horizontal direction at different experimental conditions. We further successfully establish the scaling law of the jet velocity by denoting the displacement of the bubble centroid as the characteristic length scale. The findings of this study contribute to our understanding of the nonspherical cavitation bubble dynamics under the simultaneous influence of multiple factors.