Technical Physics Letters
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- 2024
- 2023
- 2022
Analysis of the mechanism of generation of the continuous cavitation noise component
Dezhkunov N. V.
1, Minchuk V. S.1, Uvarov S. V.2, Kurliuk E. A.1
1Belarusian State University of Informatics and Radioelectronics, Minsk, Belarus
2Institute of Continuous Media Mechanics, Ural Branch, Russian Academy of Sciences, Perm, Russia
2Institute of Continuous Media Mechanics, Ural Branch, Russian Academy of Sciences, Perm, Russia
Email: dnv@bsuir.by, slava.minchuk@bk.ru, kurluke750@gmail.com
It is demonstrated that a disturbance of periodicity of pulsations of cavitation bubbles at different points of an ultrasonic field may be one of the mechanisms of generation of the continuous component in the cavitation noise spectrum. The contribution of this factor increases with an increase in the degree of aperiodicity of perturbations induced by bubbles and is not related explicitly to the intensity of shock waves generated when bubbles collapse. Experimental data verifying this conclusion are presented. Keywords: cavitation, bubble collapse, white noise, sonoluminescence.
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