Abstract:In the spray turbulent combustion, droplets, turbulent and chemical reaction are strongly coupled and the physical and chemical mechanisms are very complex. Velocity-scalar-frequency joint probability density function (JPDF) transport equation method was introduced into the two-phase turbulent reactive flow coupled with flamelet method for solving the relation between flow field and chemical dynamics. Based on this model and the Monte-Carlo numerical solving method, the numerical simulation was performed for the turbulent spray combustion in a piloted jet flame burner developed by Masri. The comparison between the experiment and the numerical simulation results verified the spray JPDF model.