Исследование комбинированной газодинамической стабилизации пламени в форсажной камере сгорания ТРДДФ

Abstract

The paper examines the issues of organizing combustion in the afterburner combustion chamber of a turbofan engine using secondary air jets. Flat paired jets flowing from the nozzles of the secondary circuit air mixer are created using reflectors of various types - corners installed upstream and downstream, as well as in the form of a plate, creating a circulation zone. Experimental data on flame stabilization and combustion completeness are presented. It has been established that when the velocity pressure (ρW2) of the secondary circuit air increases twice as much as the flow of the primary circuit, the flame on the jets is stabilized; it was found that at sufficiently high flow rates from the secondary circuit, the boundaries of flame stabilization and combustion completeness are the same for different types of reflectors.