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Application of proper orthogonal decomposition methods in reactive pore diffusion simulations

Ullmann, M. and Prüfert, U. and Seidel, J. and Ernst, O. G. and Hasse, C. (2014):
Application of proper orthogonal decomposition methods in reactive pore diffusion simulations.
In: The Canadian Journal of Chemical Engineering, pp. 1552-1560, 92, (9), ISSN 1939-019X, DOI: 10.1002/cjce.22018, [Online-Edition: http://dx.doi.org/10.1002/cjce.22018],
[Article]

Abstract

Reactive pore diffusion is an important process in automotive exhaust-gas aftertreatment modelling the overall conversion of pollutants. It features highly nonlinear source terms from chemical reactions coupled with transport processes. This work examines the application of model reduction by proper orthogonal decomposition. It is shown that this technique can be successfully applied to the system using separate bases for each species. Using a basis obtained for baseline conditions, predictions can be made for species profiles within a pore system for different conditions, potentially leading to significantly reduced computational requirements.

Item Type: Article
Erschienen: 2014
Creators: Ullmann, M. and Prüfert, U. and Seidel, J. and Ernst, O. G. and Hasse, C.
Title: Application of proper orthogonal decomposition methods in reactive pore diffusion simulations
Language: English
Abstract:

Reactive pore diffusion is an important process in automotive exhaust-gas aftertreatment modelling the overall conversion of pollutants. It features highly nonlinear source terms from chemical reactions coupled with transport processes. This work examines the application of model reduction by proper orthogonal decomposition. It is shown that this technique can be successfully applied to the system using separate bases for each species. Using a basis obtained for baseline conditions, predictions can be made for species profiles within a pore system for different conditions, potentially leading to significantly reduced computational requirements.

Journal or Publication Title: The Canadian Journal of Chemical Engineering
Volume: 92
Number: 9
Uncontrolled Keywords: catalysis, mathematical modelling, modelling and simulation studies, transport processes
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Simulation of reactive Thermo-Fluid Systems (STFS)
Date Deposited: 30 Nov 2017 12:06
DOI: 10.1002/cjce.22018
Official URL: http://dx.doi.org/10.1002/cjce.22018
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