Molecular dynamics of Poiseuille flow and moving contact lines

Joel Koplik, Jayanth R. Banavar, Jorge F. Willemsen

Research output: Contribution to journalArticle

314 Scopus citations

Abstract

We report on molecular-dynamics simulations of the low Reynolds-number flow of Lennard-Jones fluids through a channel. Application of a pressure gradient to a single fluid produces Poiseuille flow with a no-slip boundary condition and Taylor-Aris hydrodynamic dispersion. For an immiscible two-fluid system we find a (predictable) static contact angle and, when accelerated, velocity-dependent advancing and receding contact angles. The approximate local velocity field is obtained, in which the no-slip condition appears to break down near the contact line.

Original languageEnglish (US)
Pages (from-to)1282-1285
Number of pages4
JournalPhysical Review Letters
Volume60
Issue number13
DOIs
StatePublished - Jan 1 1988
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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