Mixing enhancement technique in the jet engine burner

This paper presents the enhancement of the combustion chamber efficiency owing to mixing by changing the fuel outlet cross-section triangle, square, and circle. Measurements of centerline velocity corresponding to Mach 0.2. to 0.35 and similar measurements were carried out for all cross-section of fuel injection outlet at Mach 0.2,0.25,0.35,0.35 circle, rectangle and triangle 50.1%, 57.5%, 57.6%, 58.35% & 51.81%, 56.46%, 56.52%, 57.31% And 54.66%, 58.83%, 58.83%, 59.62% respectively It was found that maximum efficiency was achieved by employing triangle cross-section of injector since it has two-point contact with the incoming air, which in turns enhances the mixing property.