Theory and simulations of squeeze-out dynamics in boundary lubrication

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

Research output: Contribution to journalArticlepeer-review

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 languageEnglish
Pages (from-to)11268-11277
Number of pages10
JournalJournal of Chemical Physics
Volume115
Issue number24
DOIs
StatePublished - 22 Dec 2001

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