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RESEARCH PAPERS

A Pressure Index for Predicting the Effect of Flow Profiles on Orifice Meter Performance

[+] Author and Article Information
H. S. Ghazi

Mechanical Engineering, The University of Akron, Akron, Ohio

J. Basic Eng 88(1), 93-100 (Mar 01, 1966) (8 pages) doi:10.1115/1.3645847 History: Received August 17, 1965; Online November 03, 2011

Abstract

The influence of upstream non-normal velocity distributions on orifice meters is studied experimentally. Several parameters, based on the velocity distribution, were found to correlate with the discharge coefficient. A pressure index, based on wall-pressure measurements, was also shown to correlate with the discharge coefficient. An examination of a proposed prediction method using the pressure index, showed that it appears possible to predict the performance of orifice meters when the approach profiles are non-normal.

Copyright © 1966 by ASME
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