Phys. Rev. Lett. 100, 186103 (2008) [4 pages]Wetting on Nanorough SurfacesReceived 30 November 2007; published 7 May 2008 We present in this Letter a free-energy approach to the dynamics of a fluid near a nanostructured surface. The model accounts both for the static phase equilibrium in the vicinity of the surface (wetting angles, Cassie-Wenzel transition) and the dynamical properties like liquid slippage at the boundary. This method bridges the gap between phenomenological phase-field approaches and more macroscopic lattice-Boltzmann models. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.186103
DOI:
10.1103/PhysRevLett.100.186103
PACS:
68.08.−p, 47.61.−k, 83.50.Rp
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