Enhancing　oxygen　transport　and　reducing　water　flooding　in　the　gas　diffusion　layer　(GDL)　of　proton　exchange　membrane　fuel　cells　are　important　for　improving　cell　performance.　In　this　study,　a　pore-scale　model　based　on　the　lattice　Boltzmann　method　is　proposed,　which　considers　two-phase　flow,　oxygen　dif...