Flow of a Power-Law Fluid in a Rayleigh Step

[+] Author and Article Information
A. F. Elkouh, Der-Fa Yang

Department of Mechanical and Industrial Engineering, Marquette University, Milwaukee, WI 53233

J. Tribol 113(3), 428-433 (Jul 01, 1991) (6 pages) doi:10.1115/1.2920642 History: Revised January 10, 1990; Received March 09, 1990; Online June 05, 2008


An exact solution of the lubrication equations of motion for flow in a Rayleigh step of infinite width is presented. The fluid is assumed to be incompressible, and the non-Newtonian behavior of the fluid is described by a power-law model. The dimensionless pressure gradient and load capacity are obtained by the solution of a system of six algebraic equations. Optimum dimensions and load capacity for Rayleigh step bearing are presented.

Copyright © 1991 by The American Society of Mechanical Engineers
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