Thursday 27 January 2011

Discharge small orifice

Q = Cv·Cc·A0·²Ö(2·g·h) [m3/s] 

Cv = Velocity coefficient (0,97-0,99)   [1]
Cc = Contraction coefficient (0,61-0,66)[1]
A0 = Wetted  Area                       [m2
h =  Pressure just before orifice       [m]
g =  Earths gravity= 9,81               [m/s2]



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