Water flows through the Pelton wheel turbine shown in Fig. 12.25. For simplicity we assume that the water is turned \(180^{\circ}\) by the blade. Show, based on the energy equation (Eq. 5.84), that the maximum power output occurs when the absolute velocity of the fluid exiting the turbine is zero.

Fig. 12.25

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V2 M Radial U Tangential b