An axial flow fan has a hub diameter of 1.50 m and a tip diameter of...

An axial flow fan has a hub diameter of 1.50 m and a tip diameter of 2.0 m. It rotates at 18 rad/s and when handling 5.0?^(3)s^(-1) of air, develops a theoretical head equivalent to 17mm of water. Determine the blade outlet and inlet angles at the hub and the tip. Assume that the velocity of flow is independent of radius and that the energy transfer per unit length of blade is constant. Assume density of air is1.2 kg/m^3

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