This content is not included in your SAE MOBILUS subscription, or you are not logged in.
CFD Investigation of Thermal Fluid Flow and Conversion Characteristics of the Catalytic Converter
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 01, 1999 by SAE International in United States
Annotation ability available
Fluid flow, temperature prediction, thermal response and light-off behavior of the catalytic converter were investigated using Computational Fluid Dynamics (CFD), combined with a conjugate heat transfer and a chemical reaction model. There are two objectives in this study: one to predict the maximum operation temperature for appropriate materials selection; and the other, to develop a numerical model which can be adjusted to reflect changes in the catalyst/washcoat formulation to accurately predict effects on the flow, temperature and light-off behavior.
Temperature distributions were calculated for exhaust gas, catalyzed substrate, mounting mat and converter skin. Converter shell skin temperature was obtained for different mat materials. By changing reactant mass concentrations and noble metal loading, the converter light-off behavior, thermal response and temperature distributions were changed.
CitationChung, C., Rajadurai, S., and Geer, L., "CFD Investigation of Thermal Fluid Flow and Conversion Characteristics of the Catalytic Converter," SAE Technical Paper 1999-01-0462, 1999, https://doi.org/10.4271/1999-01-0462.
- Weltens, H. Bressler, H. Terres, F. Neumajer, H. Rammoser, D. “Optimisation of catalytic converter gas flow distribution by CFD prediction” SAE paper 930780 1993
- Oh, S. H. Cavendish, J. C. “Transients of monolithic catalytic converters: responses to a step change in freestream temperature as related to controlling automobile emissions” Ind. Eng. Chem. Prod. Res. Dev. 21 29 1982
- Chen, D. K. S. Oh, S. E. Bissett, E. J. Ostrom, D. L. V “A three-domensional model for the analysis of trainsient thermal and conversion characteristics of monolithic catalytic converters” SAE paper 880282 1988
- Jeong, S. J. Kim, W. S “A numerical approach to investigate transient thermal and conversion characteristics of automotive catalytic converter” SAE paper 980881 1998
- Star-CD user manual Adapco, N.Y.
- Voltz, S. E. Morgan, C. R. Liederman, D. Jacob, S. M. “Kinetic study of carbon monoxide and propylene oxidation on a platinum catalysts” Ind. Eng. Cheme. Res. Dev. 12 4 1973