期刊
ULTRASONICS SONOCHEMISTRY
卷 99, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.ultsonch.2023.106576
关键词
Cavitation bubble dynamics; Particle-bubble interaction; Jet dynamics; Shock waves
This paper investigates the jet dynamics and shock waves induced by the cavitation bubble collapsing near two spherical particles using OpenFOAM. The numerical results are validated by experimental data obtained from a high-speed camera cavitation system. The study reveals that bubble split induced by annular jet is the primary feature during bubble collapsing. The localized high pressure produced at the bubble split point is the main reason for jet formation and also serves as the source of the shock waves.
The interaction between cavitation bubbles and particles is essential for the operational performance many kinds of fluid machineries. In the present paper, jet dynamics and shock waves induced by the cavitation bubble collapsing near two spherical particles are numerically investigated based on OpenFOAM. The numerical scheme is validated by the experimental data obtained based on our high-speed camera cavitation system. Our results reveal that bubble split induced by annular jet is the primary feature during bubble collapsing with four typical cases defined. For the jet formation, the localized high pressure produced at the bubble split point is the main reason and the split point also serves as the source of the shock waves shown by the numerical schlieren. Furthermore, the nondimensional bubble-particle distance is the most paramount parameter influencing the jet phenomenon (e.g. jet velocity).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据