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Article Dans Une Revue Journal de Physique III Année : 1991

Application de la réduction systematique de schemas cinetiques au calcul de flammes landnaires etirees de premelanges airpropane

E. Djavdan
  • Fonction : Auteur
N. Darabiha
V. Giovangigli
  • Fonction : Auteur
S. Candel
  • Fonction : Auteur

Résumé

The study of strained laminar flames is of fundamental importance and it is also of great interest for turbulent combustion niodeling. ] be calculations are usually performed either with extremely simple global kinetic schemes or with elementary and complex detailed chemistry. A new approach based on the systematic reduction of kinetic schemes has been recently proposed by Peters. Our goal is to evaluate this method in the context of an atmospheric premixed propane-air flame. An augmented reduced scheme involving 9 species and 6 reactions is proposed. All the computations are compared with those of a reference scheme due to VMrnatz. The results obtained are generally satisfactory. It appears that the differences between the reduced and complex schemes concerning the flame position varywith the flame parameters such as the equivalence ratio, while flames structures are always well predicted. The extinction phenomenon is correctly reproduced by the reduced mechanism and he critical values of the strain rate and the chemical composition at extinction are determined with reasonable accuracy.

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jpa-00248607 , version 1 (04-02-2008)

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Citer

E. Djavdan, N. Darabiha, V. Giovangigli, S. Candel. Application de la réduction systematique de schemas cinetiques au calcul de flammes landnaires etirees de premelanges airpropane. Journal de Physique III, 1991, 1 (4), pp.651-666. ⟨10.1051/jp3:1991146⟩. ⟨jpa-00248607⟩

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