Effect of Cavitation on the Discharge Coefficient of Standard Flow Nozzles

[+] Author and Article Information
R. Kobayashi

Institute of High Speed Mechanics, Tōhoku University, Sendai, Japan

J. Basic Eng 89(3), 677-685 (Sep 01, 1967) (9 pages) doi:10.1115/1.3609685 History: Received December 20, 1965; Online November 03, 2011


Experiments were undertaken to determine the effect of cavitation on various standard flow nozzles. The results show that the discharge coefficient of the ASME long-radius flow nozzle remains unchanged even with violent occurrence of cavitation. This is also true for the ISA flow nozzle within the prescribed tolerance so long as cavitation number does not fall below a certain limiting value. Further experiments provide information on the locations of cavitation, on incipient pressures, and on its effect on the overall pressure loss through the flow nozzles.

Copyright © 1967 by ASME
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