Investigation of Annular Nozzle Cascades of Different Width with ″Reverse″ Twist of Blades.

Results are presented of experimental investigations of annular nozzle cascades of different width with the intensity of twist of the blades derived from the condition of constancy of the angle of entry of the flow into the working cascade ( beta //1 equals const) along the length of the working blade, the difference of the angles between the root and the crest of the blade DELTA alpha //1 equals alpha //l// gamma minus alpha //1//c equals 20 degree , with the relative length l divided by D//m//e//a//n equals 1 divided by 6. 17.