Nano Science and Technology Institute
MSM 2000
MSM 2000
Technical Proceedings of the 2000 International Conference on Modeling and Simulation of Microsystems
Chapter 13: Applications: Microfluidics

Data on the Slip Coefficients

Authors:F. Sharipov
Affilation:Universidade Federal do Parana, BR
Pages:570 - 573
Keywords:slip coefficients, mathematical modeling, microfluidics
Abstract:For mathematical modeling of micro fluidics it is necessary to calculate a rarefied gas ow through micropumps, microvalves and other elements with a high accuracy. Since the size of micro fluidics is close to the molecular mean free path, the gas rarefaction must be taken into account. If the Knudsen number is sufficiently small the gas ow can be calculated applying the Navier-Stokes equation with the slip boundary condition. The slip coefficients depend on the chemical composition of the solid surface and on the species of the gas. They can be calculated applying the Boltzmann kinetic equation with an appropriate gas-surface interaction law. The aim of the present report is to make a critical review of the theoretical and experimental data and to give the recommended data for the slip coefficients.
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