A Statistical Approach to the Prediction of Discharge Coefficients for Concentric Orifice Plates

[+] Author and Article Information
R. B. Dowdell, Yu-Lin Chen

University of Rhode Island, Kingston, R. I.

J. Basic Eng 92(4), 752-762 (Dec 01, 1970) (11 pages) doi:10.1115/1.3425130 History: Received July 30, 1969; Online October 27, 2010


New equations are developed which predict the coefficients of discharge for concentric orifice plates as functions of line size, diameter ratio, and Reynolds number. These are developed using modern statistical techniques and an IBM 360 computer. Standard deviations are calculated which show the tolerance with which these new formulas predict the coefficients. The effect of the line size and the diameter ratio on the standard deviation are also presented for the case of flange taps. These equations should be used for predicting the coefficients only in the ranges of Reynolds number, diameter ratio, and line size covered by the data from which they were deduced.

Copyright © 1970 by ASME
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