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RESEARCH PAPERS

Effect of Slip Flow on the Steady-State Performance of Aerostatic Porous Journal Bearings

[+] Author and Article Information
K. C. Singh, N. S. Rao, B. C. Majumdar

Department of Mechanical Engineering, Indian Institute of Technology, Kharagpur - 721 302, India

J. Tribol 106(1), 156-162 (Jan 01, 1984) (7 pages) doi:10.1115/1.3260856 History: Received June 28, 1982; Online October 29, 2009

Abstract

A theoretical solution is presented to predict the steady-state performance characteristics of aerostatic porous journal bearings of finite thickness considering three dimensional flow in the porous media. The analysis takes into account the velocity slip at the film bearing interface by using Beavers-Joseph criterion. Results are presented in dimensionless form for load capacity and mass rate of flow for different operating conditions and bearing dimensions. Solution is also obtained for modified slip velocity conditions and both the results are compared. It is observed that there is no agreement between two models except for few values of slip parameters. Hence, it is preferable to use the Beavers-Joseph model in order to account for all values of slip parameters. The effect of slip velocity on the static characteristics is discussed.

Copyright © 1984 by ASME
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