Transport near slippery interfaces
Some surfaces exhibit wall slip, meaning that a flowing fluid has a velocity relative to that surface. This leads to increased advection in the direct vicinity of the wall. As this directly affects the rate of transport at larger scales, slippery surfaces have a potentially important application in enhancing interfacial transport. The knowledge obtained through fundamental investigations of these micro- and nanoscale transport phenomena is therefore of high importance.
Sander Haase is a PhD student in the research group Soft matter, Fluidics and Interfaces, directed by Rob Lammertink.
The aim of this thesis is to extend the current knowledge on transport near slippery and/or heterogeneous interfaces. For that purpose, various experimental, analytical and numerical studies have been performed. The following topics have been investigated:
- the influence of hydrodynamic slip on momentum and mass transfer over superhydrophobic surfaces, focusing on a so-called bubble mattress;
- the extension of a classical forced-convection problem to homogeneously and heterogeneously slippery surfaces, describing heat and mass transfer near these surfaces;
- ion transport near heterogeneous, charge-selective interfaces in a microfluidic desalination device.
Starting-time: 14.30h in Building Waaier - Prof.dr. G. Berkhoff-zaal
