A numerical study on liquid water exhaust capabilities of flow channels in polymer electrolyte membrane fuel cells

Abstract

Computational fluid dynamics (CFD) simulations were conducted to study the liquid water transport behaviors in flow channels of polymer electrolyte membrane fuel cells (PEMFCs). The effects of geometries and surface properties of flow channels on the liquid water exhaust capabilities were quantitatively analyzed based on the exhaust time and stagnant volume ata obtained by the CFD simulations.