Abstract
The mutual nonlinear coupling between cavitation bubbles in a bubble cloud has often been blamed for the complex nature of the cavitation noise. This noise is undesirable for two reasons. First, it affects the source air-gun signature which is crucial in later stages of seismic signal processing. Second, the generated noise may fall in the same frequency regime which is used by some types of whales for communication, and therefore interfere. The complete nonlinear theory of bubble interaction is used to solve the governing Keller-Miksis equation (KME) to simulate the experimentally observed cavitation noise. A qualitative comparison is made with the results from other scientific investigations and interesting inferences are drawn. It is believed that the findings reported here may have implications in the air-gun array design in seismic exploration industry since air-guns are the indirect source of cavitation noise. It may also have an impact on the study of communication systems in marine mammals.
Published Version
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