Abstract
This paper demonstrates numerical simulations of single-phase and two-phase flow through complex geometry such as the packed bed and gas diffusion layer in packed bed by using of lattice Boltzmann method. In the simulations of the packed bed, Mass and heat transfer in the packed beds are explored computationally and pressure and temperature distributions are compared with existing experimental results. In the simulation of gas diffusion layer, the water infiltrations into GDL were performed and influence of porosity, fiber diameter, orientation degree of carbon fiber, contact angle of GDL and water inlet velocity on saturation and gas diffusion performance was examined.
