Premixed turbulent combustion modeling using tabulated detailed chemistry and PDF - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Proceedings of the Combustion Institute Année : 2005

Premixed turbulent combustion modeling using tabulated detailed chemistry and PDF

Résumé

Tabulated chemistry and presumed probability density function (PDF) approaches are combined to perform RANS modeling of premixed turbulent combustion. The chemistry is tabulated from premixed flamelets with three independent parameters: the equivalence ratio of the mixture, the progress of reaction, and the specific enthalpy, to account for heat losses at walls. Mean quantities are estimated from presumed PDFs. This approach is used to numerically predict a turbulent premixed flame diluted by hot burnt products at an equivalence ratio that differs from the main stream of reactants. The investigated flame, subjected to high velocity fluctuations, has a thickened-wrinkled structure. A recently proposed closure for scalar dissipation rate that includes an estimation of the coupling between flame wrinkling and micromixing is retained. Comparisons of simulations with experimental measurements of mean velocity, temperature, and reactants are performed.
Fichier non déposé

Dates et versions

hal-00116320 , version 1 (25-11-2006)

Identifiants

Citer

Benoit Fiorina, Luc Vervisch, S. Carpentier, Nasser Darabiha, Olivier Gicquel. Premixed turbulent combustion modeling using tabulated detailed chemistry and PDF. Proceedings of the Combustion Institute, 2005, 30, pp.867-874 Part 1. ⟨10.1016/j.proci.2004.08.062⟩. ⟨hal-00116320⟩
240 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More