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RESEARCH PAPERS

The Effect of Fluid Inertia on a Porous Thrust Plate—An Analytical Solution

[+] Author and Article Information
F. C. Hsing

Mechanical Technology Inc., Latham, N. Y.

J. of Lubrication Tech 93(1), 202-206 (Jan 01, 1971) (5 pages) doi:10.1115/1.3451517 History: Received July 15, 1970; Online October 18, 2010

Abstract

A theoretical analysis was made to study the effect of fluid inertia on a porous thrust plate. The most elementary configuration was chosen as an analytic model to investigate this effect with a minimum of mathematical complexities. Numerical data were obtained for an incompressible film. The results reveal that the effect of fluid inertia can be important, depending on the film thickness H and a parameter Ω . For small value of H the inertia effect is essentially confined to a very narrow region near the edge of the bearing while for large values of H this effect spreads throughout the fluid film. This pressure boundary layer at low H is similar to that in a self-acting gas bearing. In general it was found that inertia effects tend to influence favorably the flow and load capacity of porous thrust plates.

Copyright © 1971 by ASME
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