Control of Flow Structure and Ignition of Hydrocarbon Fuel in Cavity and Behind Wallstep of Supersonic Duct by Filamentary DC Discharge
Final rept. 1 Dec 2004-30 Nov 2010
RUSSIAN ACADEMY OF SCIENCES MOSCOW INST OF HIGH TEMPERATURES
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This report results from a contract tasking Institute of High Temperatures RAS as follows The contractor will investigate the phenomena of plasma-induced ignition of high speed, low temperature air-fuel mixtures using a recirculation zone created by a rearward facing wall step and wall cavity. The plasma will be generated using a multi-electrode, quasi direct-current electrical discharge. Fuel injectors will be located in the recirculation zone. The effects of plasma induced ignition, mixing intensification, flame-stabilization, and combustion completeness will be evaluated. Investigations will be carried out using both gaseous and liquid hydrocarbon fuels. Diagnostics include high speed video, Schlieren photography, pressure distribution measurements, electrical measurements, optical spectroscopy and infrared absorption spectroscopy. The research is mainly experimental, but will include several analytical and computational efforts for better understanding and verification of the results.
- Combustion and Ignition