Wetting on Nanorough Surfaces

Abstract

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.

References in corpus (4)

• Slippage of water past superhydrophobic carbon nanotube forests in microchannels
• Modelling droplets on superhydrophobic surfaces: equilibrium states and transitions
• A note on the effective slip properties for microchannel flows with ultra-hydrophobic surfaces
• Roughness induced boundary slip in microchannel flows

Cited by in corpus (5)

• Longitudinal and transversal flow over a cavity containing a second immiscible fluid
• The Cassie-Wenzel transition of fluids on nanostructured substrates: Macroscopic force balance versus microscopic density-functional theory
• Giant Slip at Liquid-Liquid Interfaces Using Hydrophobic Ball Bearings
• Laminar drag reduction in surfactant-contaminated superhydrophobic channels
• Spontaneous imbibition in a slit pore: a lattice-gas dynamic mean field study