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RESEARCH PAPERS

Flow in Finite-Width Thrust Bearings Including Inertial Effects: II—Turbulent Flow

[+] Author and Article Information
B. E. Launder

Department of Mechanical Engineering, University of California, Davis, Calif. 95616

M. A. Leschziner

Sonderforschungsbereich 80, University of Karlsruhe, Karlsruhe, West Germany

J. of Lubrication Tech 100(3), 339-345 (Jul 01, 1978) (7 pages) doi:10.1115/1.3453182 History: Received May 01, 1978; Online October 20, 2010

Abstract

A new set of turbulent resistance laws for hydrodynamic lubricant films has been derived with the aid of a turbulence model which includes transport effects on two turbulence parameters. The model consists of two differential equations for the turbulence energy and its rate of dissipation and a constitutive equation for the turbulent viscosity. The model places no restrictions on the Reynolds number. An efficient finite-difference scheme, based on the integro-differential approach and incorporating the resistance laws and a set of accurate inertial coefficients, is applied to the solution of the turbulent inertial flow in finite-width slider bearings. A selection of predictions is presented for non-inertial and inertial flows. The former are compared with solutions obtained with alternative turbulent lubrication theories. The importance of including fluid inertia effects is demonstrated.

Copyright © 1978 by ASME
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