Large eddy simulation of spark ignition in a turbulent methane jet
Large eddy simulation of spark ignition in a turbulent methane jet
Large eddy simulation (LES) is used to compute the spark ignition in a turbulent methane jet flowing into air. Full ignition sequences are calculated for a series of ignition locations using a one-step chemical scheme for methane combustion coupled with the thickened flame model. The spark ignition is modeled in the LES as an energy deposition term added to the energy equation. Flame kernel formation, the progress and topology of the flame propagating upstream, and stabilization as a tubular edge flame are analyzed in detail and compared to experimental data for a range of ignition parameters. In addition to ignition simulations, statistical analysis of non-reacting LES solutions is carried out to discuss the ignition probability map established experimentally.
1993-2009
Lacaze, G
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Richardson, E.S.
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Poinsot, T
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October 2009
Lacaze, G
df9a1561-00b7-4460-a764-2469cb624e83
Richardson, E.S.
a8357516-e871-40d8-8a53-de7847aa2d08
Poinsot, T
77219786-c606-4711-a121-5b034f67dfe5
Lacaze, G, Richardson, E.S. and Poinsot, T
(2009)
Large eddy simulation of spark ignition in a turbulent methane jet.
Combustion and Flame, 156 (10), .
(doi:10.1016/j.combust?ame.2009.05.006).
Abstract
Large eddy simulation (LES) is used to compute the spark ignition in a turbulent methane jet flowing into air. Full ignition sequences are calculated for a series of ignition locations using a one-step chemical scheme for methane combustion coupled with the thickened flame model. The spark ignition is modeled in the LES as an energy deposition term added to the energy equation. Flame kernel formation, the progress and topology of the flame propagating upstream, and stabilization as a tubular edge flame are analyzed in detail and compared to experimental data for a range of ignition parameters. In addition to ignition simulations, statistical analysis of non-reacting LES solutions is carried out to discuss the ignition probability map established experimentally.
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Published date: October 2009
Identifiers
Local EPrints ID: 191035
URI: http://eprints.soton.ac.uk/id/eprint/191035
ISSN: 0010-2180
PURE UUID: 7ab7bd9b-20ac-4d71-a13f-49b1a3043377
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Date deposited: 16 Jun 2011 13:22
Last modified: 15 Mar 2024 03:37
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Author:
G Lacaze
Author:
T Poinsot
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