Lubrication With Binary Mixtures: Liquid-Liquid Emulsion in an EHL Conjunction

[+] Author and Article Information
S. H. Wang, A. Al-Sharif, K. R. Rajagopal, A. Z. Szeri

Department of Mechanical Engineering, University of Pittsburgh, Pittsburgh, PA 15261

J. Tribol 115(3), 515-522 (Jul 01, 1993) (8 pages) doi:10.1115/1.2921668 History: Received November 04, 1991; Revised January 01, 1992; Online June 05, 2008


Oil-in-water and water-in-oil emulsions are often employed as lubricants. In many applications of emulsion lubricants both the deformation of the bounding solid surfaces and the pressure dependence of the viscosity of the lubricant contribute essentially to performance, thus defining lubrication in the elastohydrodynamic (EHD) mode. In this paper we investigate lubrication with liquid-liquid binary mixtures of two Newtonian fluids in an EHD conjunction, and discuss the effect of varying the parameters of the problem on pressure, film thickness and volume fraction distribution. The basic theory of lubrication with liquid-liquid mixtures is contained in an earlier publication (Al-Sharif et al., 1992), here we use the theory to study an important application.

Copyright © 1993 by The American Society of Mechanical Engineers
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