A Kaplan turbine develops 1500 kw under ahead of 6 m. the turbine is set 2.5 m above the tail race while the draft tube has a submerged part length of 1.3m. A pressure gauge that installed at turbine outlet records a pressure head Of -3.1. if the overall efficiency of the turbine is 85% and the inlet draft tube diameter is 3m, determine the outlet diameter of the draft tube. Assume no leakage of water in the turbine and the losses through the draft tube is half the kinetic energy at turbine discharge.

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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.