Abstract
Experiments are described which allow to measure and visualize the dynamics of the total acoustic cavitation noise spectrum. A distinct threshold for broad-band noise much higher than the threshold for the first subharmonic has been found. At this noise threshold a broadening of all spectral lines is observed. A simple theoretical model which consists in adding up the main parts of the sound emitted by differently sized bubbles is reported. Similar noise spectra as observed experimentally are obtained.
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Cramer, E., Lauterborn, W. Acoustic cavitation noise spectra. Applied Scientific Research 38, 209–214 (1982). https://doi.org/10.1007/BF00385950
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DOI: https://doi.org/10.1007/BF00385950