Nozzle Discharge Coefficients—Compressible Flow

[+] Author and Article Information
A. T. Olson

University of Western Ontario, London, Ontario, Canada

J. Fluids Eng 96(1), 21-24 (Mar 01, 1974) (4 pages) doi:10.1115/1.3447088 History: Received July 26, 1973; Online October 12, 2010


Using Walz’s approximation method for boundary layer calculation, along with a one-dimensional treatment of the compressible inviscid core flow, discharge coefficients for small nozzle to pipe diameter ratios have been calculated. Discharge co-efficients calculated for the ASME long radius nozzle agree with those recommended by the ASME Power Test Code. In addition, experimental confirmation of an indicated Mach number effect has been achieved in a nozzle modified to minimize two-dimensional effects.

Copyright © 1974 by ASME
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