Molecular Simulation of Thermo-osmotic slip

Abstract

Thermo-osmotic slip -- the flow induced by a thermal gradient along a surface -- is a well-known phenomenon, but curiously there is a lack of robust molecular-simulation techniques to predict its magnitude. Here, we compare three different molecular simulation techniques to compute the thermo-osmotic slip at a simple solid-fluid interface. Although we do not expect the different approaches to be in perfect agreement, we find that the differences are barely significant for a range of different physical conditions, suggesting that practical molecular simulations of thermo-osmotic slip are feasible.

6 pages, 4 figures

References in corpus (3)

• Designing phoretic micro- and nano-swimmers
• Giant amplification of interfacially driven transport by hydrodynamic slip: diffusio-osmosis and beyond
• Thermo-osmotic flow in thin films

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