The effect of the dielectric barrier discharge plasma actuator in the control of non-reactive flow in a non-premixed bluff body burner

Active flow control methods based on dielectric barrier discharge plasma actuators can be used to increase the efficiency of combustion systems. In this study, influence location bluff body in a non-premixed burner non-reactive field fuel and oxidizer is investigated numerically. Flow properties spatial mixing deficiency (SMD) are calculated evaluate actuator's reactants' inside burner. The results show that actuator recirculation areas effective oxidizer. presence formation vortex, which slows down movement improves between airflow streams resulting more favorable combustion. at higher air velocity (4 m/s), zone near duct strengthens external circulation (ERZ) such way it surrounds internal reduces value SMD by an average 7.89%. While activating also ERZ for lower (0.3 affects inflow, becomes dominated jet flow. When diameter increased, both when active or inactive, greatly strengthened, airflow.