Equilibrium Simulation of the Slip Coefficient in Nanoscale Pores

Details Equilibrium Simulation of the Slip Coefficient in Nanoscale Pores Equilibrium Simulation of the Slip Coefficient in Nanoscale Pores

2008-05-12

arxiv.org/abs/0805.1666v1

Phys. Rev. E 78, 015301(R) (2008)

Physics

Condensed Matter

Soft Condensed Matter

11 pages, 4 figures, submitted to Phys Rev Lett

Scientific paper

10.1103/PhysRevE.78.015301

Accurate prediction of interfacial slip in nanoscale channels is required by many microfluidic applications. Existing hydrodynamic solutions based on Maxwellian boundary conditions include an empirical parameter that depends on material properties and pore dimensions. This paper presents a derivation of a new expression for the slip coefficient that is not based on the assumptions concerning the details of solid-fluid collisions and whose parameters are obtainable from \textit{equilibrium} simulation. The results for the slip coefficient and flow rates are in good agreement with non-equilibrium molecular dynamics simulation.

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