Experimental study of the dynamics of a single cavitation bubble excited by a focused laser near the boundary of a rigid wall
作者机构：Key Laboratory of Power Station Energy Transfer Conversion and System(Ministry of Education)School of Energy Power and Mechanical EngineeringNorth China Electric Power UniversityBeijing102206China China Atomic Energy Publishing and Media Co.LTDBeijing100048China China Institute of Nuclear Industry StrategyBeijing100048China National Institute of Energy Development StrategyNorth China Electric Power UniversityBeijing102206China
出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)
年 卷 期：2023年第35卷第5期
页 面：942-953页
核心收录：
学科分类：08[工学] 080103[工学-流体力学] 0801[工学-力学（可授工学、理学学位）]
基 金：Project supported by the National Natural Science Foundation of China(Grant No.51976056).
主 题：Asymmetry boundary cavitation bubble high-speed photography jet non-sphericity
摘 要：Based on high-speed photographic experiments,this study presents a detailed qualitative and quantitative analysis of the dynamics of a single cavitation bubble near the boundary of a rigid wall in asymmetric settings.The main findings are reported as follows:(1)The non-sphericity of the bubble interface decreases with increasing spacing between the bubble and the boundary,and the asymmetry of the bubble becomes more significant with increasing asymmetry angle.(2)The motion mode of the bubble cluster in the second oscillation cycle can be divided into two typical modes depending on the direction of movement.(3)The angle between the oblique jet pointing towards the upper wall surface and the horizontal direction in the second oscillation cycle decreases as the dimensionless spacing decreases.
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