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RESEARCH PAPERS

Cavitation Effect on the Discharge Coefficient of the Sharp-Edged Orifice Plate

[+] Author and Article Information
F. Numachi, R. Ōba

Tōhoku University, Sendai, Japan

M. Yamabe

Department of Mechanical Engineering, Tōhoku University, Sendai, Japan

J. Basic Eng 82(1), 1-6 (Mar 01, 1960) (6 pages) doi:10.1115/1.3662523 History: Received March 08, 1957; Online November 04, 2011

Abstract

The object of this paper is to investigate the effects of cavitation on the discharge coefficient of sharp-edged orifice plates with reference to various degrees of cavitation as defined by a cavitation number. The experimental data described in this paper substantiate the fact that cavitation can exist to a minimum cavitation number of 0.2 without introducing errors in the orifice discharge coefficient in excess of the normal expected accuracy. In addition to this, it was found that the use of air-inhalation to suppress the vibration and noise from the cavitation had no effect on the discharge coefficient.

Copyright © 1960 by ASME
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