School of Chemistry, University of Melbourne, VIC 3010, Australia.
Ultrason Sonochem. 2011 Jul;18(4):864-72. doi: 10.1016/j.ultsonch.2010.11.016. Epub 2010 Dec 4.
Acoustic cavitation, in simple terms, is the growth and collapse of preexisting microbubbles under the influence of an ultrasonic field in liquids. The cavitation bubbles can be characterized by the dynamics of oscillations and the maximum temperatures and pressures reached when they collapse. These aspects can be studied both experimentally and theoretically for a single bubble system. However, in a multibubble system, the formation of bubble streamers and clusters makes it difficult to characterize the cumulative properties of these bubbles. In this overview, some recently developed experimental procedures for the characterization of acoustic cavitation bubbles have been discussed.
简单来说，声空化就是在液体中的超声场作用下，预先存在的微泡的生长和崩溃。可以通过振荡动力学以及气泡崩溃时达到的最高温度和压力来对空化气泡进行特征描述。这些方面可以在单泡系统中进行实验和理论研究。然而，在多泡系统中，由于气泡流和气泡簇的形成，使得很难对这些气泡的累积特性进行特征描述。在这篇综述中，讨论了一些最近开发的用于声空化气泡特征描述的实验方法。
