TWO-DIMENSIONAL LOW-SPEED CASCADE INVESTIGATION OF NACA COMPRESSOR BLADE SECTIONS HAVING A SYSTEMATIC VARIATION IN MEAN-LINE LOADING

摘要

The low-speed cascade performance of the high-speed NACA 65-(Clo A2I86)10 compressor blade sections has been systematically investigated. Porous test-section side walls and porous flexible end walls were employed to establish a close simulation of two-dimensional flow. Blade-section cambers of 0.4 0.8, 1.2, and 1.8 were tested over the usable angle-of-attack range for inlet angles β of 30°, 1+5°, and 60° at solidities o of 1.0 and 1.5. A sufficient number of cascade configurations were tested to permit interpo¬lation and extrapolation of the data within the usual range of application.