Lattice Boltzmann Simulation on Water Transport in Gas Diffusion Layer of Polymer Electrolyte Membrane Fuel Cells

Abstract

The effect of rib on the dynamic behavior of liquid water transport in gas diffusion layer (GDL) is studied. The mechanism of water transport dynamics investigated using multiphase lattice Boltzmann method (LBM). Simulation with a simplified two-dimensional model is used to predict liquid water transport processes in local regions, instead of pursuing a three-dimensional numerical analysis for the entire domain. The observation of lattice Boltzmann (LB) simulation shows that the rib changes the water transport behavior and significantly affects the water transport in GDL.