Сhoice of angle attack on design blade row in the composition of gte compressors

Abstract

The choice of angles of attack in the design of blade crowns in the composition of GTE compressors is considered. It is shown that in this case it is necessary to take into account the peculiarities of the redistribution of the angles of attack in the first and last stages when changing the reduced rotor speed. With this in mind, methods have been proposed for selecting the density of the gratings of profiles and angles of attack in the design mode in the first, middle, and last stages