MATEC Web Conf.
Volume 209, 2018International Conference on Combustion Physics and Chemistry (ComPhysChem’18)
|Number of page(s)||6|
|Published online||02 October 2018|
Stabilization of combustion front in supersonic flow using streamer’s discharge
Baltic State Technical University “Voenmeh”, 190005 Saint-Petersburg, Russia
2 Saint Petersburg National Research University of Information Technologies, Mechanics and Optics, 197101 Saint-Petersburg, Russia
3 Moscow Radiotechnical Institute of the Russian Academy of Sciences, 117519 Moscow, Russia
* Corresponding author: firstname.lastname@example.org
Thermodynamic analysis shows that for flights with velocities exceeding six sound velocities, it is required to burn fuel not in a subsonic but in a supersonic flow. The aim of this work is to investigate the possibility of creating a stationary combustion front in a supersonic flow by igniting the mixture with an attached microwave discharge. Discharges are created on the resonator by means of a pulsed source of quasi-optical microwave radiation. This method of initiation is one or two orders of magnitude more economical than other known methods of plasma ignition and combustion stabilization. A numerical evaluation and comparison with experiment of the propagation velocity of a subcritical streamer discharge in a stationary medium and in a supersonic drifting flow are performed. Experiments have been conducted to ignite a flat flow of propane-air mixture, as well as ignition of the propane stream fed into the airflow, which simulates the operation of the fuel injector. In all cases, the experiments confirmed a steady fuel combustion, which was controlled by the temperature measurements with a thermocouple.
© The Authors, published by EDP Sciences, 2018
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