In this study, we report recent theoretical and experimental developments dealing with the axisymmetric flow surrounding non-spherically oscillating microbubbles. A wide variety of microstreaming patterns is revealed using a theoretical modeling providing exact analytical solutions of the second-order mean flows. The streaming pattern is highly dependent on the modal content of the bubble interface oscillation, including possibly spherical, translational, and nonspherical modes, as well as any combination of these modes. Experimental results on fluid flow induced by a single, non-spherically oscillating bubble in an unbounded fluid are presented and successfully compared to the theoretical predictions.

中文翻译：

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非球形振荡气泡诱导的微流模式特征

在这项研究中，我们报告了处理围绕非球形振荡微泡的轴对称流动的最新理论和实验进展。使用提供二阶平均流的精确解析解的理论模型揭示了多种微流模式。流动模式高度依赖于气泡界面振荡的模态内容，包括可能的球形、平移和非球形模式，以及这些模式的任何组合。介绍了无界流体中由单个非球形振荡气泡引起的流体流动的实验结果，并成功地与理论预测进行了比较。