Modelling droplets on superhydrophobic surfaces: equilibrium states and transitions

2005/04/11 by A. Dupuis, J. M. Yeomans · 1 citation
Physics and Astronomy · #cond-mat.soft

paper · pdf · doi:10.1021/la047348i

published as Langmuir, 21, 2624-2629, 2005 · 17 pages, 6 figures. Accepted for publication in Langmuir

arxiv created 2005/04/11 · arxiv updated 2009/12/01

Abstract

We present a lattice Boltzmann solution of the equations of motion describing the spreading of droplets on topologically patterned substrates. We apply it to model superhydrophobic behaviour on surfaces covered by an array of micron-scale posts. We find that the patterning results in a substantial increase in contact angle, from 110^o to 156^o. The dynamics of the transition from drops suspended on top of the posts to drops collapsed in the grooves is described.

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• Dynamic-Kinetic Duality of Particulate and Multiphase Systems

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