20. A centrifugal pump has an impeller 45 cms in diameter running at 450 rpm. The dischargė at inlet is entirely radial. The velocity of flow at outlet is 1 2.m/sec. The vanes are curved back- wards at outlet at 30° to the wheel tangent. If the discharge of the pump is 0 15 cumec calculate the impeller horse power and the torque on the shaft. (18*42 hp ; 29-31. kgm)

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Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.