An extension to a phenomenological sub-model for soot formation to include soot agglomeration effects is developed. The improved sub-model, consisting of six coupled differential equations, was incorporated into a commercial CFD code and used to investigate soot formation in a heavy-duty diesel engine. The results of the numerical simulation show that the soot oxidation process is reduced close to the combustion chamber walls. This is due to the lower charge temperatures encountered as a result of heat transfer to the combustion chamber walls. The sub-model predicts that larger soot particles and clusters are encountered in the annular region close to the combustion chamber walls at the end of the combustion cycle. These results are consistent with available in-cylinder experimental data on soot.
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ASME 2006 Internal Combustion Engine Division Fall Technical Conference
November 5–8, 2006
Sacramento, California, USA
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
0-7918-4260-6
PROCEEDINGS PAPER
An Improved Phenomenological Soot Formation Sub-Model for 3-D Diesel Engine Simulations: Extension to Agglomeration of Particles Into Clusters
Joan Boulanger,
Joan Boulanger
National Research Council Canada, Ottawa, ON, Canada
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Fengshan Liu,
Fengshan Liu
National Research Council Canada, Ottawa, ON, Canada
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W. Stuart Neill,
W. Stuart Neill
National Research Council Canada, Ottawa, ON, Canada
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Gregory J. Samllwood
Gregory J. Samllwood
National Research Council Canada, Ottawa, ON, Canada
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Joan Boulanger
National Research Council Canada, Ottawa, ON, Canada
Fengshan Liu
National Research Council Canada, Ottawa, ON, Canada
W. Stuart Neill
National Research Council Canada, Ottawa, ON, Canada
Gregory J. Samllwood
National Research Council Canada, Ottawa, ON, Canada
Paper No:
ICEF2006-1586, pp. 233-244; 12 pages
Published Online:
September 5, 2008
Citation
Boulanger, J, Liu, F, Neill, WS, & Samllwood, GJ. "An Improved Phenomenological Soot Formation Sub-Model for 3-D Diesel Engine Simulations: Extension to Agglomeration of Particles Into Clusters." Proceedings of the ASME 2006 Internal Combustion Engine Division Fall Technical Conference. ASME 2006 Internal Combustion Engine Division Fall Technical Conference (ICEF2006). Sacramento, California, USA. November 5–8, 2006. pp. 233-244. ASME. https://doi.org/10.1115/ICEF2006-1586
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