Homogenization in catalysis processes.
|Georges Griso 1, Maria Teresa Sanchez 2|
1. Universite Pierre et Marie Curie, Place Jussieu, Bat F Boite 39, Paris 75252, France
A catalytic converter in an automobile's exhaust system provides an environment for a chemical reaction where unburned hydrocarbons completely combust, in such a way that pollution is reduced. An enormous effort is being made with the purpose of developing appropiate supports and the catalyst itself. In some cases the design of supports geometry is what makes a process more optimal. Our objective is to model catalysis processes which occurs in an automobile's exhaust system. Due to the great difficulty of the problem, the first step is to study the asymptotic behaviour of catalysis supports in a linear elasticity problem. Since the computational domain in catalysis processes are beams with reticulated structure and the finite element method is not suitable for this type of structures, it is necessary to obtain an equivalent mathematical model defined over the domain without holes. This model has to approach as far as possible the global supports behaviour. This is the main objective of homogenization theories.
Presentation: Oral at E-MRS Fall Meeting 2006, Symposium B, by Maria Teresa Sanchez
See On-line Journal of E-MRS Fall Meeting 2006
Submitted: 2006-05-08 17:18 Revised: 2009-06-07 00:44
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