Formula for velocity of water jet at inlet of turbine

Q.  What is the formula for the velocity of water jet at the inlet of turbine?

Where,
H = Net head acting on Pelton wheel
Cv = coefficient of velocity of jet
- Published on 16 Sep 15

a. V = Cv √gH
b. V = 2 Cv √gH
c. V = Cv √2gH
d. V = 2 Cv g √H

ANSWER: V = Cv √2gH

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    Discussion

  • Pankaj   -Posted on 07 Oct 15
    The velocity of water jet at the inlet of turbine is the velocity of water jet out of the nozzle. A water jet strikes the bucket at its splitter. It splits the jet into two parts.

    Consider,

    H = Net head acting on Pelton wheel

    Cv = coefficient of velocity of jet

    g = Acceleration due to gravity

    The velocity of water jet at the inlet of turbine is given by the formula,

    V = Cv √2gH

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