液体薄层中的超声空化

Ultrasonic cavitation in thin liquid layers

液体薄层中的超声空化,因其边界及所处空间的特殊性,而呈现出非常独特的空化结构和演化行为,在超声清洗、超声钎焊、表面处理、近场声悬浮、超声化学等领域都有所应用。该文梳理了近几年该课题组在液体薄层中的超声空化研究中的一些成果,力图揭示液体薄层内空泡、空化云、空化场的运动和分布规律,及其产生、发展和演化过程,以期对液体薄层中的超声空化行为有一个相对清晰和完整的认识。

Ultrasonic cavitation in a liquid thin layer presents unique cavitation structures and behaviors due to its special boundary and space.It has been applied in the fields of ultrasonic cleaning,ultrasonic brazing,surface treatment,near field acoustic levitation,ultrasonic chemistry and so on.This paper attempts to summarize the achievements in ultrasonic cavitation research in liquid thin layers in recent years,and reveal the movement,distribution and evolution of cavitation bubbles,cavitation clouds and cavitation fields in liquid thin layers.It is hoped that this paper will enable readers to have a better understanding of cavitation behaviors in thin liquid layers.