A DESIGN OF AXIAL-FLOW COMPRESSOR BLADES WITH INCLINED STREAM SURFACE AND VARYING AXIAL VELOCITY

Abstract

This paper includes a method showing how to use experimental, two-dimensional cascade data for a quasi-three-dimensional design of axial flow compressor blades. A theoretical analysis has been performed by a suitable transformation of stream surface into a two-dimensional plane. Two parameters, which can be obtained by a solution of through flow problem, are introduced to represent inclination of the stream surface and variation of axial velocity through a rotor. With these parameters, a camber and a stagger which are selected from the cascade data can be corrected easily for the stream surface inclination and the axial velocity variation.