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Large eddy simulation of a propagating turbulent premixed flame

Citation

Kirkpatrick, MP and Armfield, SW and Masri, AR and Ibrahim, SS, Large eddy simulation of a propagating turbulent premixed flame, Flow, Turbulence and Combustion, 70, (1) pp. 1-19. ISSN 1386-6184 (2003) [Refereed Article]

DOI: doi:10.1023/B:APPL.0000004912.87854.35

Abstract

A large eddy simulation of a turbulent premixed flame propagating through a chamber containing a square obstruction is presented and discussed. The governing equations for compressible, reacting flows are Favre filtered and turbulence closure is achieved using the dynamic Smagorinsky subgrid model. A simple flame surface density model based on the flamelet concept is employed for the subgrid scale reaction rate. The simulation gives very good agreement with experimental results for the speed and the shape of the flame as it propagates through the chamber. The peak pressures, however, are underpredicted by 20-30%. Reasons for this are discussed and it is concluded that a more sophisticated combustion model is required for complex flows such as this one, if a more accurate prediction of the pressure is to be achieved.

Item Details

Item Type:Refereed Article
Research Division:Mathematical Sciences
Research Group:Numerical and Computational Mathematics
Research Field:Numerical Analysis
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Physical Sciences
Author:Kirkpatrick, MP (Dr Michael Kirkpatrick)
ID Code:34537
Year Published:2003
Web of Science® Times Cited:34
Deposited By:Engineering
Deposited On:2005-08-01
Last Modified:2005-08-01
Downloads:0

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