Droplet motion driven by surface freezing or melting: A mesoscopic hydrodynamic approach
arXiv:physics/0504048 · doi:10.1103/PhysRevE.72.025301
Abstract
A fluid droplet may exhibit self-propelled motion by modifying the wetting properties of the substrate. We propose a novel model for droplet propagation upon a terraced landscape of ordered layers formed as a result of surface freezing driven by the contact angle dependence on the terrace thickness. Simultaneous melting or freezing of the terrace edge results in a joint droplet-terrace motion. The model is tested numerically and compared to experimental observations on long-chain alkane system in the vicinity of the surface melting point.
4 pages, 3 figures
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Cited by in corpus (7)
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