New macroscopic Hamiltonian for wetting of a solid by a liquid in the immersion geometry

Jørgen Vitting Andersen, Yves Bréchet

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Abstract

We propose a model to describe wetting of a solid in the presence of gravity. The Hamiltonian allows one to include heterogeneities in the wetting angle along the surface of the solid and therefore is able to deal with the question of wetting on a heterogeneous surface. The ground state is computed using Monte Carlo simulation. The model is shown to be in agreement with results from capillary theory of homogeneous surfaces. For the case of a heterogeneous surface we have investigated the influence of the distance between line pinning centers on the averaged height of the triple line.

Original languageEnglish
Pages (from-to)2087-2090
Number of pages4
JournalPhysical Review Letters
Volume73
Issue number15
DOIs
Publication statusPublished - 1994
Externally publishedYes

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