Diesel engine simulation results using two different combustion models are presented in this study, namely the Representative Interactive Flamelet (RIF) model and the direct integration of CFD and CHEMKIN. Both models have been implemented into an improved version of the KIVA code. The KIVA/RIF model uses a single flamelet approach and also considers the effects of vaporization on turbulence-chemistry interactions. The KIVA/CHEMKIN model uses a direct integration approach that solves for the chemical reactions in each computational cell. The above two models are applied to simulate combustion and emissions in diesel engines with comparable results. Detailed comparisons of predicted heat release data and in-cylinder flows also indicate that both models predict very similar combustion characteristics. This is likely due to the fact that after ignition, combustion rates are mixing controlled rather than chemistry controlled under the diesel conditions studied.
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ASME 2005 Internal Combustion Engine Division Spring Technical Conference
April 5–7, 2005
Chicago, Illinois, USA
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
0-7918-4184-7
PROCEEDINGS PAPER
Comparisons of Combustion Simulations Using a Representative Interactive Flamelet Model and Direct Integration of CFD With Detailed Chemistry
Song-Charng Kong,
Song-Charng Kong
University of Wisconsin at Madison, Madison, WI
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Hoojoong Kim,
Hoojoong Kim
University of Wisconsin at Madison, Madison, WI
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Rolf D. Reitz,
Rolf D. Reitz
University of Wisconsin at Madison, Madison, WI
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Yongmo Kim
Yongmo Kim
Hanyang University, Seoul, Korea
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Song-Charng Kong
University of Wisconsin at Madison, Madison, WI
Hoojoong Kim
University of Wisconsin at Madison, Madison, WI
Rolf D. Reitz
University of Wisconsin at Madison, Madison, WI
Yongmo Kim
Hanyang University, Seoul, Korea
Paper No:
ICES2005-1010, pp. 159-169; 11 pages
Published Online:
November 11, 2008
Citation
Kong, S, Kim, H, Reitz, RD, & Kim, Y. "Comparisons of Combustion Simulations Using a Representative Interactive Flamelet Model and Direct Integration of CFD With Detailed Chemistry." Proceedings of the ASME 2005 Internal Combustion Engine Division Spring Technical Conference. ASME 2005 Internal Combustion Engine Division Spring Technical Conference. Chicago, Illinois, USA. April 5–7, 2005. pp. 159-169. ASME. https://doi.org/10.1115/ICES2005-1010
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