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arXiv · 1901.06190

A linear, second-order, energy stable, fully adaptive finite-element method for phase-field modeling of wetting phenomena

B. Aymard·U. Vaes·M. Pradas·S. Kalliadasis
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Abstract

We propose a new numerical method to solve the Cahn-Hilliard equation coupled with non-linear wetting boundary conditions. We show that the method is mass-conservative and that the discrete solution satisfies a discrete energy law similar to the one satisfied by the exact solution. We perform several tests inspired by realistic situations to verify the accuracy and performance of the method: wetting of a chemically heterogeneous substrate in three dimensions, wetting-driven nucleation in a complex two-dimensional domain and three-dimensional diffusion through a porous medium.

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B. Aymard, U. Vaes, M. Pradas, S. Kalliadasis. 2019-01-18. A linear, second-order, energy stable, fully adaptive finite-element method for phase-field modeling of wetting phenomena. https://doi.org/10.1016/j.jcpx.2019.100010

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