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Thermophysics and Aeromechanics

2011 year, number 1

Boiling-up of liquid argon at high superheatings under the impact of weak ultrasonic fields

V.G. Baidakov, A.M. Kaverin, V.N. Andbaeva
Institute of Thermophysics UB RAS
Keywords: acoustic cavitation, nucleation, superheat, boiling-up, argon
Pages: 31-36


The technique of lifetime measurement for metastable liquid and continuous depressurization technique were applied for study of kinetics of spontaneous cavitation in superheated liquid argon under impact of weak ultrasonic fields. It was demonstrated that acoustic cavitation may occur through the mechanism of homogeneous generation of vapor phase or through swinging of vapor bubbles generated by high-energy particles and/or other kinds of initiative factors. The thresholds of acoustic cavitation are described by the theory of homogeneous nucleation.