Ultrasonic cavitation in thin liquid layers

被引：43

作者：

Moussatov, A ^{[1
]}

Granger, C ^{[1
]}

Dubus, B ^{[1
]}

机构：

[1] Inst Elect Microelect & Nanotechnol, Dept ISEN, UMR 8520, F-59046 Lille, France

来源：

ULTRASONICS SONOCHEMISTRY | 2005年 / 12卷 / 06期

关键词：

ultrasonic cavitation; thin liquid layer; mechanical erosion; bubble structure;

D O I：

10.1016/j.ultsonch.2004.09.001

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The generation of ultrasonic cavitation in a thin liquid layer trapped between a large radiating surface and a hard reflector and bounded laterally by a gas-liquid interface is investigated. The theoretical analysis predicts that a large amplification of the acoustical pressure is obtained with this configuration. Experiments are conducted by driving the layer with horn-type transducers having a large emitting surface. Ultrasonic cavitation is obtained in a broad frequency range at low input intensity due to the amplification effect. Erosion tests on metallic foils demonstrate the existence of a region of intense cavitation activity which can be localised by controlling the input intensity. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：415 / 422

页数：8

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