The Study of Gravitational Nozzle Flows by Hodograph Transformations

[+] Author and Article Information
P. C. Chan

JAYCOR, P.O. Box 85154, San Diego, Calif. 92138

W. L. Chow

Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, Urbana, Ill. 61801

J. Appl. Mech 51(3), 457-464 (Sep 01, 1984) (8 pages) doi:10.1115/1.3167657 History: Received May 01, 1983; Revised December 01, 1983; Online July 21, 2009


The effect of gravity on two-dimensional imcompressible potential nozzle flows has been studied using the method of hodograph transformation coupled with numerical computation. It has been demonstrated that although hodograph transformation is an inverse technique, it has the ability to allow curved walls to be prescribed a priori. Calculations have been performed for flows discharging from symmetric nozzles with horizontal lips. The variation of total head versus discharge rate can only be obtained from detailed consideration of the gravitational effect. Some general features of nozzle flows, including the possibility of early flow separation from the top nozzle wall, have been observed.

Copyright © 1984 by ASME
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