%0 Journal Article
%A Beale, Steven B.
%A Andersson, Martin
%A Weber, Norbert
%A Marschall, Holger
%A Lehnert, Werner
%T Combined Two-phase Co-flow and Counter-flow in a Gas Channel/Porous Transport Layer Assembly
%J ECS transactions
%V 98
%N 9
%@ 1938-6737
%C Pennington, NJ
%M FZJ-2021-00879
%P 305 - 315
%D 2020
%X This paper considers a detailed numerical analysis of combined liquid-gas co-flow in a gas channel, with liquid-gas counter-flow in a porous transport layer, as is typically found on the cathode side of a polymer electrolyte fuel cell. The geometry is obtained by digital reconstruction of nano-computer tomography images. From this, the domain is tessellated with an unstructured castellated or octree mesh, upon which the equations of mass and momentum are solved by means of a volume of fluid method. Liquid water is produced from an electrode where gaseous oxygen is simultaneously consumed by electrochemical reduction; Liquid-gas counter flow in the porous transport layer results in liquid drops being entrained in co-flow in the gas channels and convected by the gas downstream.
%F PUB:(DE-HGF)16
%9 Journal Article
%R 10.1149/09809.0305ecst
%U https://juser.fz-juelich.de/record/890299