Turbomachinery Aerodynamics

Question 13: Symmetrical blading in axial flow  machines mean :

a1   =   β1 at all blade radii

Symmetrical  airfoils are used at any blade section

All blades are set at 450 angle

Rotor and  Stator blade setting  angles are equal
Prof. Bhaskar Roy, Prof. A M Pradeep, Department of Aerospace, IIT Bombay