In some cases during the experiments described in past reports [1, 2] which dealt with cavitation-induced ultrasonic shock waves, extremely anomalous values were obtained in the imparted pressure of the shock waves. The paper deals with an investigation into the nature of these shock-wave anomalies, and it is demonstrated that these anomalies can be caused not only in closed-circuit cavitation tunnels but can be produced in any flow subjected to preliminary cavitation at a point upstream of the point of principal cavitation. The nature of the anomalies occurring in the shock-wave spectrum was studied, and its relation to cavitation-bubble size was made clear.

This content is only available via PDF.
You do not currently have access to this content.