Theory and simulations of squeeze-out dynamics in boundary lubrication

S. Zilberman; B. N.J. Persson; A. Nitzan

doi:10.1063/1.1421105

Theory and simulations of squeeze-out dynamics in boundary lubrication

S. Zilberman^*, B. N.J. Persson, A. Nitzan

^*Corresponding author for this work

School of Chemistry

Tel Aviv University

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The theory of hydrodynamic squeeze-out of lubricant film confined between two surfaces was analyzed. Two dimensional Navier-Stokes equations with an interfacial friction term were solved combined with Monte Carlo simulations for the analysis. The squeeze-out of liquid was a result of the pressure gradient existing in the lubrication film in the contact area. Drift velocity was calculated analytically as a function of distance of the island to the periphery of the contact area. A stochastic numerical approach to solve the problems of moving boundaries causing thermal fluctuations was also presented.

Original language	English
Pages (from-to)	11268-11277
Number of pages	10
Journal	Journal of Chemical Physics
Volume	115
Issue number	24
DOIs	https://doi.org/10.1063/1.1421105
State	Published - 22 Dec 2001

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abstract = "The theory of hydrodynamic squeeze-out of lubricant film confined between two surfaces was analyzed. Two dimensional Navier-Stokes equations with an interfacial friction term were solved combined with Monte Carlo simulations for the analysis. The squeeze-out of liquid was a result of the pressure gradient existing in the lubrication film in the contact area. Drift velocity was calculated analytically as a function of distance of the island to the periphery of the contact area. A stochastic numerical approach to solve the problems of moving boundaries causing thermal fluctuations was also presented.",

author = "S. Zilberman and Persson, {B. N.J.} and A. Nitzan",

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Theory and simulations of squeeze-out dynamics in boundary lubrication

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