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Article Dans Une Revue Fuel Année : 2009

Prediction of a high swirled natural gas diffusion flame using a PDF model

A. Khelil
  • Fonction : Auteur
L. Loukarfi
  • Fonction : Auteur

Résumé

The paper deals with the numerical prediction of a high swirling non-premixed confined natural gas diffusion flame in order to predict the pollutant emissions NOx using the PDF model coupled with the Reynolds stress model (RSM). A chemical equilibrium model in conjunction with the assumed shape of the PDF is adopted. The chemical combustion reactions are described by nine species and eight reactions [Westbrook CK, Dryer FL. Chemical kinetic modelling of hydrocarbon combustion. Progr Energy Combust Sci 1984;10:1–57]. The PDF of the mixture fraction is described with a β-function. In order to predict the NOx emissions, a NOx post-processor of the Fluent code has been performed. The concentration of O and OH radicals are obtained assuming the partial-equilibrium assumption and using a PDF in terms of temperature. The numerical simulation of various factors influencing the combustion process are examined and compared favourably with experimental results.

Dates et versions

hal-00351369 , version 1 (09-01-2009)

Identifiants

Citer

A. Khelil, Hassan Naji, L. Loukarfi, Gilmar Mompean. Prediction of a high swirled natural gas diffusion flame using a PDF model. Fuel, 2009, 88 (2), pp.374-381. ⟨10.1016/j.fuel.2008.09.008⟩. ⟨hal-00351369⟩

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