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In the outlet velocity triangle of a Kaplan turbine, β2 = 30o. Vf2 = 5 m/s. What is the relative velocity of the flow at outlet?

In the outlet velocity triangle of a Kaplan turbine, β2 = 30o. Vf2 = 5 m/s. What is the relative velocity of the flow at outlet? Correct Answer 10 m/s

In the outlet velocity triangle, sin (β2) = Vf2/ Vr2. Therefore, Vr2 = 5/sin(30) = 10 m/s.

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