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A microscopic model for thin film spreading

Douglas B. Abraham·Rodolfo Cuerno·Esteban Moro
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Abstract

A microscopic, driven lattice gas model is proposed for the dynamics and spatio-temporal fluctuations of the precursor film observed in spreading experiments. Matter is transported both by holes and particles, and the distribution of each can be described by driven diffusion with a moving boundary. This picture leads to a stochastic partial differential equation for the shape of the boundary, which agrees with the simulations of the lattice gas. Preliminary results for flow in a thermal gradient are discussed.

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Douglas B. Abraham, Rodolfo Cuerno, Esteban Moro. 2002-01-14. A microscopic model for thin film spreading. https://doi.org/10.1103/physrevlett.88.206101

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