Lattice Boltzmann Method for Simulating the Temperature Jump and Velocity Slip in Microchannels  

作　　者：Lin Zheng Bao-Chang Shi Zhen-Hua Chai 

机构地区：[1]Department of Mathematics,Huazhong University of Science and Technology,Wuhan 430074,China [2]State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan 430074,China.

出　　处：《Communications in Computational Physics》2007年第6期1125-1138,共14页计算物理通讯（英文）

基　　金：study was financially supported by the National Basic Research Program of China(2006CB705804);the National Natural Science Foundation of China(70271069).

摘　　要：The velocity slip and temperature jump in micro-Couette flow are investigated with the lattice Boltzmann method(LBM).A new slip boundary condition with the non-equilibrium extrapolation scheme is used in a thermal lattice Boltzmann model(TLBM)where double distribution functions are used to simulate the velocity and the temperature fields in order to capture the velocity slip and the temperature jump of the wall boundary.The simulated velocity and temperature profiles are in good agreement with the analytic results,which shows the suitability of the present model and the new boundary treatment for describing thermal microflows with viscous heat dissipation.

关 键 词：Lattice Boltzmann velocity slip temperature jump. 

分 类 号：O56[理学—原子与分子物理]