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On the modelling of two-phase flow in the cathode gas diffusion layer of a polymer electrolyte fuel cell
KTH, Skolan för teknikvetenskap (SCI), Mekanik. KTH, Skolan för teknikvetenskap (SCI), Centra, FaxénLaboratoriet.ORCID-id: 0000-0002-8318-1251
2007 (engelsk)Inngår i: Applied Mathematics and Computation, ISSN 0096-3003, E-ISSN 1873-5649, Vol. 189, nr 2, s. 1560-1575Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

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.

sted, utgiver, år, opplag, sider
2007. Vol. 189, nr 2, s. 1560-1575
Emneord [en]
polymer electrolyte fuel cell, gas diffusion layer, multi-fluid model, multicomponent flow, ALE formulation
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-37307DOI: 10.1016/j.amc.2006.12.040ISI: 000247699100053Scopus ID: 2-s2.0-34249008541OAI: oai:DiVA.org:kth-37307DiVA, id: diva2:433008
Tilgjengelig fra: 2011-08-08 Laget: 2011-08-08 Sist oppdatert: 2017-12-08bibliografisk kontrollert

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