Prediction of a high swirled natural gas diffusion flame using a PDF model
| type de publication |
article dans une revue internationale avec comité de lecture |
| date de publication |
2009 |
| auteur(s) |
Khelil Ali; Naji Hassan; Loukarfi Larbi; Mompean Gilmar |
| journal (abréviation) |
Fuel (Fuel) |
| volume (numéro) |
88 (2) |
| | |
| pages |
374 – 381 |
| 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 9 species and 8 reactions [31]. The
PDF of the mixture fraction is described with a b -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. |
| mots clés |
Turbulence-chemistry interaction; PDF model; Diffusion flame; Swirl burner; NOx |
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