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Numerical Study of the Influence of Combustion Models and Kinetic Schemes When Predicting the Diffusion Flames

Published online by Cambridge University Press:  16 October 2012

A. Khelil ,
S. Nechad ,
H. Naji ,
L. Loukarfi ,
M. Braikia  and
M. Beriache
A. Khelil
Affiliation:
University Hassiba Benbouali, B.P. 151, 2000 Chlef, Algeria
S. Nechad
Affiliation:
University Hassiba Benbouali, B.P. 151, 2000 Chlef, Algeria
H. Naji*
Affiliation:
LGCgE, Université d'Artois/FSA de Béthune, F-62400, France; Université Lille Nord de France, F-59000 Lille, France
L. Loukarfi
Affiliation:
University Hassiba Benbouali, B.P. 151, 2000 Chlef, Algeria
M. Braikia
Affiliation:
University Hassiba Benbouali, B.P. 151, 2000 Chlef, Algeria
M. Beriache
Affiliation:
LGCgE, Université d'Artois/FSA de Béthune, F-62400, France; Université Lille Nord de France, F-59000 Lille, France University Hassiba BenboualiB.P. 151, 2000 Chlef, Algeria
*
* Corresponding author (hassane.naji@univ-artois.fr)
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Abstract

This article aims to study numerically three-dimensional (3D) reactive turbulent flow in a combustion chamber of a gas turbine by solving a steady Reynolds-Averaged Navier-Stokes (RANS) )and energy equations. The Reynolds stress model (RSM) is coupled with the probability density function (PDF), laminar flamelet and Chemistry models to describe the turbulent flow and turbulence–chemistry interaction. Numerical computations are conducted to exhibit thermal and concentration behaviour under a quite number of factors, which influence the combustion process. Their influence are examined and compared favourably with available experimental results. Concentration of some radicals as O and OH are obtained assuming the partial-equilibrium assumption and using a PDF in terms of temperature. The 3D simulations demonstrate that the use of RSM, PDF and flamelet model allow simulating velocity and thermochemical fields.

Keywords

Combustion chamberDiffusion flameSwirling turbulent flowChemical kinetics models
Type
Articles
Information
Journal of Mechanics , Volume 28 , Issue 4 , December 2012 , pp. 701 - 713
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2012

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