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Institut für Wasserbau - IWS

Selected Topics and International Network Lectures

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Dienstag
11.12.2007
16:00 Uhr
Robert Klöfkorn
Abteilung für Angewandte Mathematik, Universität Freiburg

Modern Concepts of Software Design with the Application to the Simulation of PEM Fuel Cells with the Software Package DUNE

Numerical simulation of Polymer Electrolyte Membrane (PEM) Fuel Cells using a detailed fuel cell model is a challenging problem. The model under consideration consists of two-phase flow in the porous layers of the fuel cell, transport mechanisms of species in the gaseous phase, as well as oxygen reduction reactions. Apart from a short overview of the governing equations and the presentation of numerical results, the talk will focus on concepts of software design for numerical applications with the underlying complex model and their difficulties. The governing system of equations is discretised by the Local Discontinuous Galerkin (LDG) method. The developed framework for the implementation, DUNE-Fem, of this LDG method can cope with several space dimensions and several polynomial orders of the basis functions of the discrete function space. The Discontinuous Galerkin method is implemented independently from any grid structures by using the generic grid interface of the software package DUNE.