RESUMO

In the frame of this work a transported probability density function (PDF) method is combined with the flamelet generated manifolds (FGM) tabulated chemistry approach for large eddy simulation (LES) modeling of a three-dimensional turbulent premixed swirl burner. This strategy accounts for the turbulence-chemistry interaction at reasonable computational costs and at the same time, allows the usage of detailed chemistry mechanisms for the production of the chemical database. The results obtained are comparatively assessed along with complementary measurements. Furthermore, transient and time-averaged data are used to provide insight into the sensitivity of the resulting flame shape and its dynamics to different modeling approaches, where the implemented approach will be compared with a well-established artificially thickened flame (ATF) combustion model.