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

被引：34
|
作者：
Khelil, A. [1 ,2 ]
Naji, H. [1 ]
Loukarfi, L. [2 ]
Mompean, G. [1 ]
机构：
[1] Univ Lille 1, Polytech Lille, USTL, LML,UMR 8107, F-59655 Villeneuve Dascq, France
[2] Univ Chlef, Chlef 02000, Algeria
来源：
FUEL | 2009年 / 88卷 / 02期
关键词：
Turbulence-chemistry interaction; PDF model; Diffusion flame; Swirl burner; NOx prediction; DENSITY-FUNCTION MODEL; NOX EMISSIONS; SCALAR PDF; TURBULENT; COMBUSTION; CLOSURE;
D O I：
10.1016/j.fuel.2008.09.008
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
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 p-function. In order to predict the NO, emissions, a NO, 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. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：374 / 381
页数：8
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