The rotor of a radial flow machine running at 800 RPM has inlet and outlet diameter of 200 ???? and 500 ???? respectively. The blades on the rotor are bent backwardsuch that the tangent at the blade...

The rotor of a radial flow machine running at 800 RPM has inlet and outlet diameter of 200 ???? and 500 ???? respectively. The blades on the rotor are bent backwardsuch that the tangent at the blade outlet makes an angle of 60° with the peripheralvelocity of the blade. The velocity of the flow remains constant through rotor at 10??/??. Draw the velocity triangles at the inlet and outlet of the rotor assuming theradial entry. Calculate (a) the blade angle at inlet, (b) specific work, and (c) specificwork when the blade outlet angle is 80° instead of 60°.