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In the inlet velocity triangle of a Kaplan turbine, α1 = 45o. The velocity of flow at inlet = 10 m/s. Find the whirl velocity of water at the inlet of Kaplan turbine?

In the inlet velocity triangle of a Kaplan turbine, α1 = 45o. The velocity of flow at inlet = 10 m/s. Find the whirl velocity of water at the inlet of Kaplan turbine? Correct Answer 10 m/s

In the inlet velocity triangle, tan (α1) = Vf1/ Vw1Since α1 = 45o, Vf1 = Vw1 = 10 m/s.

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