The mean radius of an axial flow reaction turbine is 2.6 ft. and the axial velocity is 25 ft./s. The wicket gates are turned at an angle such that relative velocity at the inlet flow makes an angle of -45° with the blade velocity. The wheel and hub radii are 3.6 ft. and 1.6 ft., respectively. The turbine rotates at 240 rpm. If water leaves the blade in a purely axial direction, calculate H and all relevant angles. Ans: H=81.87 ft.; α1=31.8°; β2=20.93°

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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.