A model of an electrochemical flow cell with porous layer
- Ehrhardt, Matthias
- Fuhrmann, Jürgen
- Linke, Alexander
2010 Mathematics Subject Classification
- 65N99 35K20
- limiting current, finite volume method, boundary layer, fluid-porous interface problem
In this paper we discuss three different mathematical models for fluid-porous interfaces in a simple channel geometry that appears e.g. in thin-layer channel flow cells. Here the difficulties arise from the possibly different orders of the corresponding differential operators in the different domains. A finite volume discretization of this model allows to calculate the limiting current of the H_2 oxidation in a porous electrode with platinum catalyst particles.