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Drops on an inclined heterogeneous substrate: onset of sliding motion

Uwe Thiele·Edgar Knobloch
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Abstract

Pinning and depinning of drops on an inclined heterogeneous substrate is studied as a function of the inclination and heterogeneity amplitude. Two types of heterogeneity are considered: a hydrophobic defect that blocks the droplet in front, and a hydrophilic one that holds it at the back. Two different types of depinning leading to sliding motion are identified, and the resulting stick-slip motion is studied numerically.

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Uwe Thiele, Edgar Knobloch. 2006-03-08. Drops on an inclined heterogeneous substrate: onset of sliding motion. https://doi.org/10.1103/physrevlett.97.204501

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