THE TEMPERATURE OF CAVITATION

被引：1000

作者：

FLINT, EB ^{[1
]}

SUSLICK, KS ^{[1
]}

机构：

[1] UNIV ILLINOIS,SCH CHEM SCI,URBANA,IL 61801

来源：

SCIENCE | 1991年 / 253卷 / 5026期

关键词：

D O I：

10.1126/science.253.5026.1397

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Ultrasonic irradiation of liquids causes acoustic cavitation: the formation, growth, and implosive collapse of bubbles. Bubble collapse during cavitation generates transient hot spots responsible for high-energy chemistry and emission of light. Determination of the temperatures reached in a cavitating bubble has remained a difficult experimental problem. As a spectroscopic probe of the cavitation event, sonoluminescence provides a solution. Sonoluminescence spectra from silicone oil were reported and analyzed. The observed emission came from excited state C2 (Swan band transitions, d3II(g) - a3II(u)), which has been modeled with synthetic spectra as a function of rotational and vibrational temperatures. From comparison of synthetic to observed spectra, the effective cavitation temperature was found to be 5075 +/- 156 K.

引用

页码：1397 / 1399

页数：3

共 47 条

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