Simulation of gas flow in a microchannel for transition regime using Lattice Boltzmann Method

Lattice Boltzmann Method (LBM) has been used for investigation of gas flow in a microchannel for the transition flow regime, i.e. 0.1Knudsen layer was obtained by using an effective mean free path through relaxation time parameter in LBM. The model has been applied to rarefied pressuredriven and shear-driven flows between parallel plates.Results show significant improvement in LBM prediction of near-wall region with a computationally economic solution technique over a wide range of Knudsen numbers.

کلیدواژه ها:

lattice Boltzmann method ، micro flows ، Knudsen layer ، effective mean-free path