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Numerical Analysis of Finite Element Method for a Transient Two-phase Transport Model of Polymer Electrolyte Fuel Cell
Author(s) -
Yuzhou Sun,
Mingyan He,
Pengtao Sun
Publication year - 2013
Publication title -
procedia computer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.334
H-Index - 76
ISSN - 1877-0509
DOI - 10.1016/j.procs.2013.05.387
Subject(s) - finite element method , electrolyte , thermal diffusivity , computer science , convection–diffusion equation , norm (philosophy) , transient (computer programming) , mathematics , transformation (genetics) , mechanics , thermodynamics , physics , chemistry , electrode , operating system , biochemistry , political science , gene , law
In this paper, we study a 2D transient two-phase transport model for water species in the cathode gas diffusion layer of hydrogen polymer electrolyte fuel cell (PEFC), the reformulation of water concentration equation is described by using Kirchhoff transformation, and its numerical efficiency is demonstrated by successfully dealing with the discontinuous and degenerate water diffusivity. The semi-discrete and fully discrete finite element approximations with Crank-Nicolson scheme are developed for the present model and the optimal error estimate in H1 norm and the sub-optimal error estimate in L2 norm are established for both finite element schemes

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