Molecular dynamics of Poiseuille flow and moving contact lines

Joel Koplik, Jayanth R. Banavar, Jorge Willemsen

Research output: Contribution to journalArticle

310 Citations (Scopus)

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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laminar flow
electric contacts
molecular dynamics
fluids
slip
low Reynolds number
pressure gradients
velocity distribution
breakdown
hydrodynamics
boundary conditions
simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Molecular dynamics of Poiseuille flow and moving contact lines. / Koplik, Joel; Banavar, Jayanth R.; Willemsen, Jorge.

In: Physical Review Letters, Vol. 60, No. 13, 01.01.1988, p. 1282-1285.

Research output: Contribution to journalArticle

Koplik, Joel ; Banavar, Jayanth R. ; Willemsen, Jorge. / Molecular dynamics of Poiseuille flow and moving contact lines. In: Physical Review Letters. 1988 ; Vol. 60, No. 13. pp. 1282-1285.
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