Kinetic roughening of a soft dewetting line under quenched disorder: a numerical study

B. Tyukodi, Y. Bréchet, Z. Néda

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Abstract

An elegant simulation method, suitable for investigating the dewetting dynamics of thin and viscous liquid layers, is discussed. The efficiency of the method is exemplified by studying a two-parameter depinninglike model defined on inhomogeneous solid surfaces. The morphology and the statistical properties of the contact line are mapped in the relevant parameter space, and as a result critical behavior in the vicinity of the depinning transition is revealed. The model allows for the tearing of the layer, which leads to a new propagation regime resulting in nontrivial collective behavior. The large deformations observed for the interface are a result of the interplay between the substrate inhomogeneities and the capillary forces.

Original languageEnglish
Article number052404
Number of pages9
JournalPhysical Review E
Volume90
Issue number5
DOIs
Publication statusPublished - 17 Nov 2014
Externally publishedYes

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