Comparative Study of Boundary Conditions in LBM for Incompressible Laminar Flow
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In this paper, we conduct a comparative study amongst different boundary conditions with two dimensional single-relaxation time lattice Boltzmann method (SRT-LBM), for incompressible laminar flow. Three types of boundary condition are considered for the simulation: including full-way bounce-back, half-way bounce-back, and modified bounce-back for the implementation of no-slip boundary condition on the wall with, pressure (density) boundary condition proposed by Zuo and He (Phys Fluids 9(6):1591–1598, 1997 ) for inlet/oulet. The benchmark fluid flow problem of steady plane Poiseuille’s flow with Reynolds number, Re = 75 is choosen. The numerical simulations are validated with the analytical solution, and grid convergence test are performed to compare accuracy of different boundary conditions.
KeywordsLattice Boltzmann method (LBM) Single-relaxation time Incompressible flow Boundary conditions
- 4.McClure, J.E., Prins, J.F., Miller, C.T.: Comparison of CPU and GPU implementations of the lattice Boltzmann method. In: XVIII International Conference on Water Resources, CMWR (2010)Google Scholar
- 5.Succi, S.: The Lattice Boltzmann Equation: for Fluid Dynamics and Beyond. Oxford University Press (2001)Google Scholar