Pressure Generated by Cavitation in a Pipe

by Wen-Hsiung Li,
James P. Walsh,

Serial Information: Journal of the Engineering Mechanics Division, 1964, Vol. 90, Issue 6, Pg. 113-134

Document Type: Journal Paper


When the velocity of a liquid in a pipe is rapidly decreased at a point, such as behind a rapidly-closing valve or a pump following power failure, the pressure at this point may drop to the vapor pressure of the liquid, thus causing the formation of a vapor cavity. In many cases, this cavity will collapse, generating waves of high pressure propagating through the pipe. This paper presents a result for the prediction of the maximum pressure generated in cases in which the influence resistance is small. This analytical result has been substantiated experimentally.

Subject Headings: Pressure pipes | Cavitation | Pipelines | Power outage | Pipe failures | Dynamic pressure | Wave pressure | Failure analysis

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