کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4635542 1340712 2007 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the modelling of two-phase flow in the cathode gas diffusion layer of a polymer electrolyte fuel cell
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
On the modelling of two-phase flow in the cathode gas diffusion layer of a polymer electrolyte fuel cell
چکیده انگلیسی

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 hoc 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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematics and Computation - Volume 189, Issue 2, 15 June 2007, Pages 1560–1575
نویسندگان
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