Large Eddy simulation of a spray jet flame using filtered tabulated chemistry
Résumé
Large Eddy Simulation of a liquid n-heptane/air laboratory jet burner using the Filtered TAbulated Chemistry model for LES (F-TACLES) is presented. This work aims to address the ability of the F-TACLES model to retrieve the correct turbulent spray flame structure. LES results are compared against experimental measurements in terms of heat release, spray properties and flow characteristics. Numerical simulations recover both the flame lift-off and the double flame structure found in the experiments. For non-reacting and reacting conditions, the gas phase velocity as well as the mean droplet diameter are well retrieved, whereas differences are observed for the droplet temperature. An analysis is conducted which tends to attribute the cause of observed discrepancies to the evaporation model assumptions.
Domaines
Sciences de l'ingénieur [physics]Origine | Fichiers produits par l'(les) auteur(s) |
---|