Void Fraction Measurements in a Cavitating Venturi

[+] Author and Article Information
Willy Smith, G. L. Atkinson, F. G. Hammitt

Department of Nuclear Engineering, The University of Michigan, Ann Arbor, Mich.

J. Basic Eng 86(2), 265-274 (Jun 01, 1964) (10 pages) doi:10.1115/1.3653058 History: Received December 03, 1962; Online November 03, 2011


A method is described for obtaining precise measurements of local density (or void fraction) in an axially symmetrical cavitating flow regime wherein a heavy fluid as mercury, molten lead, and so on, is used. The method can be adapted to light fluids by substituting a softer radiation source. Significant information regarding the cavitating flow regime in a particular venturi operating with mercury has been obtained. Among other things it has been shown that regions where substantial damage to test specimens has previously been noted [7] have void fractions of the order of only five percent.

Copyright © 1964 by ASME
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