An extension to a phenomenological submodel for soot formation to include soot agglomeration effects is developed. The improved submodel was incorporated into a commercial computational fluid dynamics code and was 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, due to heat loss, such that larger soot particles and clusters are predicted in an annular volume at the end of the combustion cycle. These results are consistent with available in-cylinder experimental data and suggest that the cylinder of a diesel engine must be split into several volumes, each of them with a different role regarding soot formation.
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e-mail: joan.boulanger@nrc-cnrc.gc.ca
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November 2008
Research Papers
An Improved Phenomenological Soot Formation Submodel for Three-Dimensional Diesel Engine Simulations: Extension to Agglomeration of Particles into Clusters
Joan Boulanger,
Joan Boulanger
Gas Turbine Laboratory,
e-mail: joan.boulanger@nrc-cnrc.gc.ca
Institute for Aerospace Research
, National Research Council Canada, 1200 Montréal Road, Ottawa, ON, K1A 0R6, Canada
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W. Stuart Neill,
W. Stuart Neill
Institute for Chemical Process and Environmental Technology
, National Research Council Canada, 1200 Montréal Road, Ottawa, ON, K1A 0R6, Canada
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Fengshan Liu,
Fengshan Liu
Institute for Chemical Process and Environmental Technology
, National Research Council Canada, 1200 Montréal Road, Ottawa, ON, K1A 0R6, Canada
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Gregory J. Smallwood
Gregory J. Smallwood
Institute for Chemical Process and Environmental Technology
, National Research Council Canada, 1200 Montréal Road, Ottawa, ON, K1A 0R6, Canada
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Joan Boulanger
Gas Turbine Laboratory,
Institute for Aerospace Research
, National Research Council Canada, 1200 Montréal Road, Ottawa, ON, K1A 0R6, Canadae-mail: joan.boulanger@nrc-cnrc.gc.ca
W. Stuart Neill
Institute for Chemical Process and Environmental Technology
, National Research Council Canada, 1200 Montréal Road, Ottawa, ON, K1A 0R6, Canada
Fengshan Liu
Institute for Chemical Process and Environmental Technology
, National Research Council Canada, 1200 Montréal Road, Ottawa, ON, K1A 0R6, Canada
Gregory J. Smallwood
Institute for Chemical Process and Environmental Technology
, National Research Council Canada, 1200 Montréal Road, Ottawa, ON, K1A 0R6, CanadaJ. Eng. Gas Turbines Power. Nov 2008, 130(6): 062808 (6 pages)
Published Online: August 22, 2008
Article history
Received:
April 30, 2007
Revised:
February 15, 2008
Published:
August 22, 2008
Citation
Boulanger, J., Neill, W. S., Liu, F., and Smallwood, G. J. (August 22, 2008). "An Improved Phenomenological Soot Formation Submodel for Three-Dimensional Diesel Engine Simulations: Extension to Agglomeration of Particles into Clusters." ASME. J. Eng. Gas Turbines Power. November 2008; 130(6): 062808. https://doi.org/10.1115/1.2939003
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