IGNITION OF PROPANE-AIR MIXTURE WITH SPATIALLY-NONUNIFORM REACTIVITY, GENERATED BY STREAMER DISCHARGES

Abstract

This work presents the numerical results regarding to ignition of the premixed lean C3H8-air mixture. The temperature and radical stratifications are created by a filamentary electrical discharge. The formation of combustion wave at the different specific deposited energy and the important role of low temperature oxidation chemistry (below 1000 K) in the preheating zone ahead the flame front for the acceleration of low flame velocity in lean mixture are shown.