Analysis of liquid water transport in fuel cell gas diffusion media using two-mobile phase pore network simulations

▶ Discrete pore networks represent flow of two immiscible phases in porous medium. ▶ Averaging of random simulations provides relative permeabilities and capillary pressures. ▶ Relative permeability follows a power law of saturation. ▶ Capillary pressure varies significantly with the porous medium heterogeneity. ▶ Small clusters promote channeling.