Large eddy simulations of turbulent swirling flames
Large eddy simulations of turbulent swirling flames
Large Eddy Simulation (LES) has been applied to predict swirling flames based on the Sydney swirl burner. In the numerical methods, the governing equations for mass, momentum and mixture fraction have been solved on a structured Cartesian grid. Smagorinsky eddy viscosity model with localised dynamic procedure of Piomelli and Liu is used as a subgrid scale turbulence model. The conserved scalar mixture fraction based thermo-chemical variables are described using a steady laminar flamelet model. With appropriate boundary conditions and relatively fine grid resolutions, LES predict the vortex breakdown and recirculation zones for swirling flames with high level accuracy.
Ranga Dinesh, K.K.J.
6454b22c-f505-40f9-8ad4-a1168e8f87cd
Jenkins, K.W
eec6783a-46fd-4386-9346-52bd81875ce2
2008
Ranga Dinesh, K.K.J.
6454b22c-f505-40f9-8ad4-a1168e8f87cd
Jenkins, K.W
eec6783a-46fd-4386-9346-52bd81875ce2
Ranga Dinesh, K.K.J. and Jenkins, K.W
(2008)
Large eddy simulations of turbulent swirling flames.
12th SIAM International Conference on Numerical Combustion, Monterey Park, United States.
30 Mar - 01 Apr 2008.
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Abstract
Large Eddy Simulation (LES) has been applied to predict swirling flames based on the Sydney swirl burner. In the numerical methods, the governing equations for mass, momentum and mixture fraction have been solved on a structured Cartesian grid. Smagorinsky eddy viscosity model with localised dynamic procedure of Piomelli and Liu is used as a subgrid scale turbulence model. The conserved scalar mixture fraction based thermo-chemical variables are described using a steady laminar flamelet model. With appropriate boundary conditions and relatively fine grid resolutions, LES predict the vortex breakdown and recirculation zones for swirling flames with high level accuracy.
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Published date: 2008
Venue - Dates:
12th SIAM International Conference on Numerical Combustion, Monterey Park, United States, 2008-03-30 - 2008-04-01
Organisations:
Engineering Science Unit
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Local EPrints ID: 347913
URI: http://eprints.soton.ac.uk/id/eprint/347913
PURE UUID: 428c6cdc-253b-4258-ad20-9aeb3fb9adc9
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Date deposited: 13 Feb 2013 12:34
Last modified: 11 Dec 2021 04:43
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Author:
K.W Jenkins
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