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RESEARCH PAPERS

Temperature and Scale Effects Upon Cavitation and Flashing in Free and Submerged Jets

[+] Author and Article Information
J. H. Lienhard

Mechanical Engineering Department, Washington State University, Pullman, Wash.

J. M. Stephenson

Sandia Corporation, Livermore, Calif.

J. Basic Eng 88(2), 525-531 (Jun 01, 1966) (7 pages) doi:10.1115/1.3645891 History: Received July 23, 1965; Online November 03, 2011

Abstract

Observations of inception and desinent cavitation numbers in small submerged jets, and observations of the flashing of small, highly superheated, free jets, are presented. The observations, made over a range of jet sizes and water temperatures, reveal a strong influence of geometric scale in both systems. The water temperature has little effect upon the cavitation number for the submerged jet except at high temperatures. Flashing occurs in the free jet after a delay time which is shown to vary as the (−7/2) power of the liquid superheat, and inversely as the jet area.

Copyright © 1966 by ASME
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