Abstract
We study dynamical contact angles and precursor films using Langevin dynamics for SOS type models, near a wall which favors spreading. We first solve exactly the Gaussian model and discuss various asymptotic regimes. This is only appropriate to partial wetting. We then consider more general models. Using local equilibrium and scaling arguments, we derive the shape of the dynamical profile and the speed of the precursor film which exists when the spreading coefficient is strictly positive. Long-range potentials lead to a layered structure of the precursor film. We also consider the case of a meniscus in a capillary.
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Abraham, D., Collet, P., De Coninck, J. et al. Langevin dynamics of an interface near a wall. J Stat Phys 61, 509–532 (1990). https://doi.org/10.1007/BF01027290
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DOI: https://doi.org/10.1007/BF01027290