Photoacoustic monitoring of steam bubble cavitation in water superheated by TEA CO2 laser

被引：2
|
作者：
Kudryashov, Sergey I. [1 ]
Lyon, Kevin [1 ]
Allen, Susan D. [1 ]
机构：
[1] Arkansas State Univ, Dept Chem & Phys, State Univ, AR 72467 USA
来源：
PHOTONS PLUS ULTRASOUND: IMAGING AND SENSING 2006 | 2006年 / 6086卷
关键词：
TEA CO2 laser; de-ionized water; contact photoacoustics; megasonics; steam bubbles; cavitation;
D O I：
10.1117/12.646239
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Using a TEA CO2 laser for explosive surface boiling of bulk water, oscillatory acoustic transients from steam bubbles were recorded using a contact photoacoustic technique. Multiple well-resolved, high-amplitude multi-MHz spectral features representing high-order combination acoustic oscillations of steam bubbles were revealed in spectra obtained by means of numerical Fast Fourier Transformation of these transients. A potential parametric generation mechanism for these high-order combination oscillation modes of steam bubbles is discussed.
引用
收藏
页数：6
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