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Review
. 2022 Jan:82:105878.
doi: 10.1016/j.ultsonch.2021.105878. Epub 2021 Dec 17.

Acoustic characterization of cavitation intensity: A review

Pengfei Wu  1 , Xiuming Wang  2 , Weijun Lin  2 , Lixin Bai  2
Affiliations
Review

Acoustic characterization of cavitation intensity: A review

Pengfei Wu et al. Ultrason Sonochem. 2022 Jan.

Abstract

Cavitation intensity is used to describe the activity of cavitation, and several methods are developed to identify the intensity of cavitation. This work aimed to provide an overview and discussion of the several existing characterization methods for cavitation intensity, three acoustic approaches for charactering cavitation were discussed in detail. It was showed that cavitation noise spectrum is too complex and there are some differences and disputes on the characterization of cavitation intensity by cavitation noise. In this review, we recommended a total cavitation noise intensity estimated via the integration of real cavitation noise spectrum over full frequency domain instead of artificially adding inaccurate filtering processing.

Keywords: Cavitation; Characterization; Intensity; Noise spectrum.

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Conflict of interest statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Figures

Fig. 1
Fig. 1
Cavitation intensity definition diagram
Fig. 2
Fig. 2
Schematic of three acoustic approaches for charactering cavitation.
Fig. 3
Fig. 3
Schematic representation of acoustic pressure spectrums
Fig. 4
Fig. 4
Cavitation intensity indicated by gray images and spectrograms
See this image and copyright information in PMC

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