Abstract

Detection of cavitation in pumps is one of the essential topics in hydraulic machinery research and has been intensively investigated for several decades. In the literature, a technique based on analysis of acoustic signals generated by cavitation bubbles in the pumps has been proposed to detect cavitation activities especially incipient cavitation. In present paper, recent theoretical investigations by the author and his collaborators on acoustic cavitation bubbles (e.g. damping mechanisms, heat and mass transfer) together with their associated acoustical signals have been briefly reviewed to advance above technique.

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