Study of propane-air mixture combustion initiation by the formation of microwave plasma in a flow

This study confirmed propane ignition by microwave discharge upon varying the proportion of fuel in a mixture for difficult ignition conditions, such as high altitude launch of an aircraft engine and combustion in a supersonic flow. Then study was carried out experimentally in a test channel with a central body. The mixture was ignited by a deep-subcritical streamer discharge with a wavelength of 12.4 cm. (paper)