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A Kaplan turbine requires a speed ratio of 2. The available head of the turbine is 5 m. What should be the blade velocity of the turbine such that a speed ratio of 2 is maintained (take g = 10 m/s2)?

A Kaplan turbine requires a speed ratio of 2. The available head of the turbine is 5 m. What should be the blade velocity of the turbine such that a speed ratio of 2 is maintained (take g = 10 m/s2)? Correct Answer 63.25 m/s

The speed ratio φ = U/ sqrt(2gH). Substitute the value for speed ratio and available head in this equation and rearrange to find U = 63.25 m/s.

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