Surface-Directed Spinodal Decomposition: A Molecular Dynamics Study

Prabhat K. Jaiswal; Sanjay Puri; Subir K. Das

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arXiv · 1204.0662

Surface-Directed Spinodal Decomposition: A Molecular Dynamics Study

Prabhat K. Jaiswal·Sanjay Puri·Subir K. Das

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Abstract

We use molecular dynamics (MD) simulations to study surface-directed spinodal decomposition (SDSD) in unstable binary ($AB$) fluid mixtures at wetting surfaces. The thickness of the wetting layer $R_1$ grows with time $t$ as a power-law ($R_1 \sim t^θ$). We find that hydrodynamic effects result in a crossover of the growth exponent from $θ\simeq 1/3$ to $θ\simeq1$. We also present results for the layer-wise correlation functions and domain length scales.

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Prabhat K. Jaiswal, Sanjay Puri, Subir K. Das. 2012-04-03. Surface-Directed Spinodal Decomposition: A Molecular Dynamics Study. https://arxiv.org/abs/1204.0662

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