DIRECT OBSERVATION OF THE PRESSURE DEVELOPED IN A LIQUID DURING CAVITATION-BUBBLE COLLAPSE

被引：53

作者：

WARD, B

EMMONY, DC

机构：

[1] Department of Physics, University of Technology

来源：

APPLIED PHYSICS LETTERS | 1991年 / 59卷 / 18期

关键词：

D O I：

10.1063/1.106078

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A Mach-Zehnder interferometer with a pulsed dye-laser light source is used to observe the collapse of laser-produced cavitation bubbles in water near a rigid transparent polymeric boundary. Vapor bubbles with a maximum radius of about a millimeter are formed using a Q-switched Nd:YAG laser operating at 1.06-mu-m with a pulse energy of 4.6 mJ and a pulse duration of 8 ns. The pressure in the liquid around the bubbles is determined directly from the resulting interferograms using a fringe tracing method. Prior to bubble rebound, a region of compressed water develops adjacent to the cavity and a weak acoustic wave is directed towards the rigid boundary.

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页码：2228 / 2230

页数：3

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