VARIATION OF TANGENTIAL PRESSURE OF PROCESS FLUID ON BLADE IN CHANNELS OF RADIAL-AXIAL TURBINE

摘要

An analysis of the tangential pressure exerted by a process fluid on the blades of a radial-axial turbine upon its entry at some angle to the direction of the circumferential flow rate of the turbine is performed. The angle of inclination of the blades and the radial flow rate of the fluid are adopted as constant relative to the radius of the turbine. Relationships for estimating the influence of the flow on the blades in the interval between the inlet and outlet sections of the blade are derived. The fluid exerts its greatest effect on the inlet section of the blade; its influence is weaker in subsequent sections in the travel path. The active part of the length of the blade, on which the fluid influences the parameters of the turbine, decreases as the entry angle of the fluid decreases.