Lattice Boltzmann simulations of oscillating flows in porous media

The lattice Boltzmann method was used to simulate oscillating flows in porous media to study the oscillating flow characteristics in porous media,with the porous media structure constructed using the quartet structure generation set method.The simulations show that the maximum pressure drop of the oscillating flow increases with the maximum Reynolds number and that the maximum friction coefficient decreases with increasing Reynolds number,which is consistent with experimental results reported in the literature.When the porosity is less than 0.85,the phase shift between the pressure drop and the velocity does not vary much with the porosity,but for porosities larger than 0.85,the phase shift linearly decreases with increasing porosity.