复杂流场下气泡界面不稳定现象的数值模拟方法综述

摘要

The study on the instability of the bubble interface is a hot topic. Among the various numerical methods, Boundary element method (BEM) is widely adopted to simulate the bubble dynamics due to its high efficiency. The development and application of BEM and relative numerical treatments on bubble dy-namics are reviewed in this paper. The collapse of bubble near various boundaries under various ambient flows is summarized;The splitting, mergence and breakup of the bubble near free surface are concluded and discussed; the influences of three significant factors, namely compressibility, surface tension and viscosity, are reviewed and analyzed;and, the problems needed to be studied further are put forward.%气泡界面不稳定现象一直是国内外关注和研究的热点。近年来，边界元方法（Boundary Element Method， BEM）被广泛应用于气泡动力学模拟，文章则侧重综述边界元法及其相关技术在模拟气泡界面不稳定现象中的应用与发展。首先，简要回顾不同边界不同背景流场下气泡溃灭坍塌的边界元法研究进展；其次，分别回顾和讨论气泡撕裂、融合和在自由面破裂三种典型界面不稳定现象的研究进展；再次，回顾和讨论了气泡模拟过程中可压缩性、表面张力和粘性三种因素的影响；最后，在上述基础上提出了一些尚需进一步解决的问题。该文旨在向国内同行学者介绍目前气泡界面不稳定现象的最新研究进展，希望能为国内学者研究气泡动力学提供一定参考。