%0 Journal Article %T Simulation of rarefied gas flow in a microchannel with backward facing step by two relaxation times using Lattice Boltzmann method – Slip and transient flow regimes %A Kamali Ahangar, Ehsan %A Ayani, Mohammad Bagher %A Abolfazli Esfahani, Javad %J International Journal of Mechanical Sciences %@ 0020-7403 %D 2019