Flow Characteristics of Long Orifices With Rotation and Corner Radiusing

[+] Author and Article Information
W. F. McGreehan, M. J. Schotsch

GE Aircraft Engines, Cincinnati, OH

J. Turbomach 110(2), 213-217 (Apr 01, 1988) (5 pages) doi:10.1115/1.3262183 History: Received February 17, 1987; Online November 09, 2009


The discharge coefficient of an orifice is a function of both geometric and flow effects, such as inlet corner radius, orifice length, inlet velocity orientation, and Reynolds number. Loss characteristics are available for each of these effects; however, a need exists for a reasonable method of predicting the discharge coefficient with an arbitrary combination of the above effects. Presented is a technique for calculating the discharge coefficient for arbitrary geometry with results compared to test data.

Copyright © 1988 by ASME
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