To investigate and optimize the water-gas transport performance of microporous gas diffusion layer (GDL) flow channel, the simulation of computational fluid dynamics (CFD) is implemented with the volume of fluid method (VOF).
Highlights• The impact of microporous GDL flow channel with different depths, radiuses, and spacings on water transport and water removal is discussed.• The resistance can be reduced, and water removal can be accelerated greatly in the perforated GDL.• When the micropore depth is 50 μm, radius is 50 μm, and spacing is 200 μm, the flow channel has a better drag reduction performance.