Hydraulics and Fluid Mechanics in ME
Slip of a reciprocating pump is defined as the

Product of theoretical discharge and the actual discharge
Difference of theoretical discharge and the actual discharge
Ratio of actual discharge to the theoretical discharge
Sum of actual discharge and the theoretical discharge

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Hydraulics and Fluid Mechanics in ME
The discharge over a rectangular weir, considering the velocity of approach, is (whereH1 = H + Ha = Total height of water above the weir, H = Height of water over the crest of the weir, and Ha = Height of water due to velocity of approach)

(2/3) Cd × L.√2g [H1 - Ha]
(2/3) Cd × L.√2g [H12 - Ha2]
(2/3) Cd × L. √2g [H13/2 - Ha3/2]
(2/3) Cd × L. √2g [H15/2 - Ha5/2]

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