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Fluid Flow Equations for Rotordynamic Flows in Seals and Leakage Paths

Hsu, Y. and Brennen, C. E. (2002) Fluid Flow Equations for Rotordynamic Flows in Seals and Leakage Paths. Journal of Fluids Engineering, 124 (1). pp. 176-181. ISSN 0098-2202. doi:10.1115/1.1436093.

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Fluid-induced rotordynamic forces produced by the fluid in an annular seal or in the leakage passage surrounding the shroud of a pump or turbine, are known to contribute substantially to the potential excitation forces acting on the rotor. The present research explores some of the important features of the equations governing bulk-flow models of these flows. This in turn suggests methods which might be used to solve these bulk-flow equations in circumstances where the linearized solutions may not be accurate. This paper presents a numerical method for these equations and discusses comparison of the computed results with experimental measurements for annular seals and pump leakage paths.

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Additional Information:Contributed by the Fluids Engineering Division for publication in the Journal of Fluids Engineering. Manuscript received by the Fluids Engineering Division April 17, 2001; revised manuscript received October 15, 2001.
Issue or Number:1
Record Number:CaltechAUTHORS:HSUjfe02
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:104
Deposited By: Christopher Brennen
Deposited On:08 Oct 2004
Last Modified:08 Nov 2021 19:00

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