Molecular dynamics of Poiseuille flow and moving contact lines
- 28 March 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 60 (13) , 1282-1285
- https://doi.org/10.1103/physrevlett.60.1282
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.Keywords
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