Conditional moment closure modelling for spark ignition in a turbulent n-heptane spray
Conditional moment closure modelling for spark ignition in a turbulent n-heptane spray
Ignition and flame stabilisation have been simulated in a turbulent, bluff body stabilised spray flame. A complete first order Conditional Moment Closure (CMC) model for spray combustion is presented, as well as CMC modelling for spark ignition. The new elements of the two phase model formalism and the spark ignition models are illustrated using a one dimensional spray ignition example. It is shown that the new spray terms are not significant in the flows considered, however the modelling of the mixture fraction variance equation is critical. Finally, ignition of the experimental spray burner is simulated and compared with the available data, showing reasonable qualitative agreement but over-predicting the speed of flame stabilisation.
Richardson, E.S.
a8357516-e871-40d8-8a53-de7847aa2d08
Mastorakos, E.
159653c4-33f6-4f4a-8f79-4751bfd4ba64
2007
Richardson, E.S.
a8357516-e871-40d8-8a53-de7847aa2d08
Mastorakos, E.
159653c4-33f6-4f4a-8f79-4751bfd4ba64
Richardson, E.S. and Mastorakos, E.
(2007)
Conditional moment closure modelling for spark ignition in a turbulent n-heptane spray.
5th Mediterranean Combustion Symposium, Monastir, Tunisia.
09 - 13 Sep 2007.
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Conference or Workshop Item
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Abstract
Ignition and flame stabilisation have been simulated in a turbulent, bluff body stabilised spray flame. A complete first order Conditional Moment Closure (CMC) model for spray combustion is presented, as well as CMC modelling for spark ignition. The new elements of the two phase model formalism and the spark ignition models are illustrated using a one dimensional spray ignition example. It is shown that the new spray terms are not significant in the flows considered, however the modelling of the mixture fraction variance equation is critical. Finally, ignition of the experimental spray burner is simulated and compared with the available data, showing reasonable qualitative agreement but over-predicting the speed of flame stabilisation.
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Richardson_MCS5.pdf
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Published date: 2007
Venue - Dates:
5th Mediterranean Combustion Symposium, Monastir, Tunisia, 2007-09-09 - 2007-09-13
Organisations:
Engineering Science Unit
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Local EPrints ID: 203183
URI: http://eprints.soton.ac.uk/id/eprint/203183
PURE UUID: e3012e33-561c-410c-bc39-ecea40c458bb
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Date deposited: 15 Nov 2011 14:51
Last modified: 15 Mar 2024 03:37
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Author:
E. Mastorakos
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