Abstract
This paper demonstrates numerical simulations of droplet on/in gas diffusion layer of the polymer electrolyte fuel cell. The lattice Boltzmann method for incompressible two-phase flows at high density ratios were applied for the simulations in order to predict the shape and moving velocity of water droplet surrounding by the air in the gas channel. In addition to the simulation, droplet infiltration to the simulated gas diffusion layer were simulated. The droplet heights by the simulations were qualitatively agreed with the experimental data, while the simulation results of moving speed of droplet somewhat overestimated the experimental results.
