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Transient CFD: How Valuable is it for Catalyst Design?
Technical Paper
2002-01-0064
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The design of the hot-end exhaust system dictates the performance of the exhaust system in terms of emissions, power loss and durability. The engine-out flow is highly transient and hot, and may place tremendous thermal and inertial loads on a catalyst. Therefore, time-dependent and detailed flow and thermal field simulation may be crucial. This study is geared towards assessing the value of transient flow simulations for close-coupled and underbody converters. For this purpose key parameters are defined and compared for similar sized close-coupled and underbody catalysts via transient and steady flow simulations.
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Citation
Berkman, M. and Katari, A., "Transient CFD: How Valuable is it for Catalyst Design?," SAE Technical Paper 2002-01-0064, 2002, https://doi.org/10.4271/2002-01-0064.Also In
References
- Weltens, W. et. al. 1993 “Optimisation of Catalytic Converter Gas Flow distribution by CFD Prediction,” SAE Paper 930780
- Martin, A. P. et. al. 1998 “Effect of Flow Distribution on Emissions Performance of Catalytic Converters,” SAE Paper 980936
- Taylor, W Ciray, S. 2000 “Flow Distribution in Catalytic Converters: Quantified Impact on Emissions and Restriction,” Proceedings of the ASME Internal Combustion Engine Div. Sep. 24-27 Peoria, IL.
- Lai, M.-C. et. al. 1991 “Three-dimensional Simulations of Automotive Catalytic Converter Internal Flow,” SAE Paper 910200
- Taylor, W. 1999 “CFD Prediction and Experimental Validation of High-Temperature Thermal Behavior in Catalytic Converters,” SAE Paper 1999-01-0454
- Jeong, S.-J. Kim, W.-S. 2000 “Three-Dimensional Numerical Study on the Use of Warmup Catalyst to Improve Light-off Performance,” SAE Paper 2000-01-0207
- Jeong, S.-J. Kim, T. 1997 “CFD Investigation of the 3-Dimensional Unsteady Flow in the Catalytic Converter,” SAE Paper 971025
- Cho, Y.-S. et. al. “Flow Distribution in a Close- Coupled Catalytic Converter,” SAE Paper 982552
- Yoshizawa, K. et. al. 2001 “Numerical Analysis of the Exhaust Gas Flow and Heat Transfer in a Close- Coupled Catalytic Converter System During Warmup,” SAE Paper 2001-01-0943
- Berkman, M. E. et. al. 2001 “1-D/3-D Coupled Transient CFD Analysis of a Hot-End Automotive Exhaust System,” ASME Paper FEDSM2001-18206