Wetting, roughness and flow boundary conditions

Abstract

We discuss how the wettability and roughness of a solid impacts its hydrodynamic properties. We see in particular that hydrophobic slippage can be dramatically affected by the presence of roughness. Owing to the development of refined methods for setting very well-controlled micro- or nanotextures on a solid, these effects are being exploited to induce novel hydrodynamic properties, such as giant interfacial slip, superfluidity, mixing, and low hydrodynamic drag, that could not be achieved without roughness.

28 pages, 14 figures, 4 tables; accepted for publication in Journal of Physics: Condensed Matter

References in corpus (12)

• Giant amplification of interfacially driven transport by hydrodynamic slip: diffusio-osmosis and beyond
• A note on the effective slip properties for microchannel flows with ultra-hydrophobic surfaces
• Superstability of Surface Nanobubbles
• Slip flow over structured surfaces with entrapped microbubbles
• Geometric transition in friction for flow over a bubble mattress
• Effective slip over superhydrophobic surfaces in thin channels
• Direct measurements of hydrophobic slippage using double-focus fluorescence cross-correlation
• Roughness induced boundary slip in microchannel flows
• Lattice Boltzmann simulations of apparent slip in hydrophobic microchannels
• Dynamics of the spontaneous breakdown of superhydrophobicity
• Transverse flow in thin superhydrophobic channels
• Hydrodynamic interaction with super-hydrophobic surfaces

Cited by in corpus (36)

• Soft matter in hard confinement: phase transition thermodynamics, structure, texture, diffusion and flow in nanoporous media - topical review
• Electro-osmosis on anisotropic super-hydrophobic surfaces
• Tensorial slip of super-hydrophobic channels
• Capillary rise dynamics of liquid hydrocarbons in mesoporous silica as explored by gravimetry, optical and neutron imaging: Nano-rheology and determination of pore size distributions from the shape of imbibition fronts
• Hydraulic Transport Across Hydrophilic and Hydrophobic Nanopores: Flow Experiments with Water and n-Hexane
• 'Gas cushion' model and hydrodynamic boundary conditions for superhydrophobic textures
• Molecular diffusion and slip boundary conditions at smooth surfaces with periodic and random nanoscale textures
• Contact Angle Hysteresis on Superhydrophobic Stripes
• Drag force on a sphere moving towards an anisotropic super-hydrophobic plane
• Enhanced slip properties of lubricant-infused grooves
• Anisotropic flow in striped superhydrophobic channels
• Correlation between surface topography and slippage: a Molecular Dynamics study
• Effective slip-length tensor for a flow over weakly slipping stripes
• Inertial migration of neutrally-buoyant particles in superhydrophobic channels
• Flow past superhydrophobic surfaces with cosine variation in local slip length
• Transport of ions in hydrophobic nanotubes
• Flows and mixing in channels with misaligned superhydrophobic walls
• Regimes of Wetting Transitions on Superhydrophobic Textures Conditioned by Energy of Receding Contact Lines
• Effective hydrodynamic boundary conditions for microtextured surfaces
• Flow in channels with superhydrophobic trapezoidal textures
• Self-diffusiophoresis of Janus particles that release ions
• Achieving large zeta-potentials with charged porous surfaces
• Diffusion of a Janus nanoparticle in an explicit solvent: A molecular dynamics simulation study
• Boundary conditions at the gas sectors of superhydrophobic grooves
• Slippery and mobile hydrophobic electrokinetics: from single walls to nanochannels
• Effective slippage on superhydrophobic trapezoidal grooves
• Lattice-Boltzmann simulations of the drag force on a sphere approaching a superhydrophobic striped plane
• Precursors to Molecular Slip on Smooth Hydrophobic Surfaces
• Surface and zeta potentials of charged permeable nanocoatings
• Advective superdiffusion in superhydrophobic microchannels
• The locality of surface interactions on colloidal probes
• A Dissipative-Particle-Dynamics Model for Simulating Dynamics of Charged Colloid
• Slip Length in Shear Flow Over a Textured Surface
• Analytical and numerical validation of a plate-plate tribometer for measuring wall slip
• Diffusioosmosis of electrolyte solutions in uniformly charged channels
• Enhanced transport of ions by tuning surface properties of the nanochannel