On the modelling of two-phase flow in the cathode gas diffusion layer of a polymer electrolyte fuel cell
2007 (English)In: Applied Mathematics and Computation, ISSN 0096-3003, E-ISSN 1873-5649, Vol. 189, no 2, 1560-1575 p.Article in journal (Refereed) Published
A front-tracking approach is derived for the numerical solution of the equations arising in the multi-fluid model for isothermal multiphase multicomponent flow in the gas diffusion layer of the cathode of a polymer electrolyte fuel cell under conditions of local thermodynamic equilibrium. The method is able to find the location of the one-phase/two-phase interface explicitly and without need for the artificial diffusion, smoothing and ad hoe source terms that are required in existing formulations. Also, the analysis indicates the presence of a previously unidentified integrable singularity, which can be removed provided that the dependent variables are chosen correctly. For quantitative comparison, a benchmark example is implemented using both approaches in the commercially available finite-element software Comsol Multiphysics.
Place, publisher, year, edition, pages
2007. Vol. 189, no 2, 1560-1575 p.
polymer electrolyte fuel cell, gas diffusion layer, multi-fluid model, multicomponent flow, ALE formulation
IdentifiersURN: urn:nbn:se:kth:diva-37307DOI: 10.1016/j.amc.2006.12.040ISI: 000247699100053ScopusID: 2-s2.0-34249008541OAI: oai:DiVA.org:kth-37307DiVA: diva2:433008