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Title: Capturing localised extinction in Sandia Flame F with LES-CMC
Authors: Garmory, Andrew
Mastorakos, E.
Keywords: LES
Issue Date: 2011
Publisher: © The Combustion Institute. Published by Elsevier Inc.
Citation: GARMORY, A. and MASTORAKOS, E., 2011. Capturing localised extinction in Sandia Flame F with LES-CMC. Proceedings of the Combustion Institute, 33 (1), pp. 1673 - 1680.
Abstract: A Large Eddy Simulation (LES) using the Conditional Moment Closure (CMC) as a sub-grid turbulence-chemistry model has been applied to piloted jet diffusion flames (Sandia D&F). A 3D CMC grid was used which allowed different CMC boundary conditions to be applied in the jet and pilot streams. The code was found to give very good agreement with experiment in the low extinction case of Flame D. For Flame F transient extinction and re-ignition events were observed with LES–CMC which lead to reductions in averaged unconditional and conditional temperature consistent with experimental observations. Further analysis revealed that the CMC extinction/ignition events were the result of a combination of high conditional scalar dissipation rate and transport in the CMC grid.
Description: This article was published in the journal, Proceedings of the Combustion Institute [© The Combustion Institute. Published by Elsevier Inc.] and the definitive version is available at: http://dx.doi.org/10.1016/j.proci.2010.06.065
Version: Accepted for publication
DOI: 10.1016/j.proci.2010.06.065
URI: https://dspace.lboro.ac.uk/2134/11116
Publisher Link: http://dx.doi.org/10.1016/j.proci.2010.06.065
ISSN: 1540-7489
Appears in Collections:Published Articles (Aeronautical and Automotive Engineering)

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