Experimental and theoretical study of a premixed vibrating flame

International audienceAn experimental study of vibrating flames above a cylindrical burner has been conducted in order to examine some of the fundamental characteristics of the flow perturbations-combustion interaction. Here the perturbation chosen is a space-time sinusoidal flow velocity. The vibrational nature of the flow has been studied with and without the flame, using a LDV setup and a tomography system. The prevalent kinematic phenomenon is an effect of flow pumping-indeed the velocity perturbation propagates along the vertical axis nearly at the mean flow velocity. A laminar flame in such a flow modulation (