Influence of direction of rotation of the swirl at the turbulente diffusion flame proprieties

In the present work we interested to predict numerically the proprieties of turbulent diffusion flame. For the turbulence model we are used large eddy simulation when the interaction between turbulence and chemical we used the presume probability density table. The phenomenon of vortex-Breakdown is indicated by the presence of a recirculation zone at the jet axis. As validation the numerical calculations are confronted with the experiments and the comparison is satisfactory. We present different characteristics flow fields such as radial profiles of velocities, temperature, turbulence kinetic vorticities; energy and mass fractions of different species. The numerical results of this work are compared with available experimental data for the validation of numerical tools.