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Derivation of discharge over rectangular weir

  1. Feb 16, 2017 #1
    How does the velocity at an elemental height h equates to √(2gh)? My application of Bernoulli's equation is not yielding the result. Please show the process.

    Thank you
     

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  3. Feb 16, 2017 #2

    BvU

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    So what is the difference between your handling of Bernoulli and, e.g., this one ?
     
  4. Feb 16, 2017 #3
    Thank You so much.
    The exiting fluid also experiences same atmospheric pressure as the top point.
     
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