Simulating dipole-wall collisions by using moment-based boundary conditions for the lattice Boltzmann method

Abstract: The accuracy of moment-based boundary conditions for no slip and slip walls in the lattice Boltzmann method is examined numerically by using dipole wall collision for both normal and oblique cases. To do that hydrodynamic moments impose to the boundary instead of the distribution functions. For accurate results a two relaxation time (TRT) model are used with moment boundary conditions. An excellent agreement with a benchmark data is obtained and the results are obtained to converge with second order accuracy.