Calculation of discharge through a rectangular weir, Victor Miguel Ponce, Visualab, San Diego State University

    online_rectangular_weir: Calculation of discharge through a rectangular weir

Formula:

Q = C_e (L + k_b) (H + 0.003)^3/2          [in U.S. Units]

Head H on the weir, in m [or ft]
Length L of the weir, in m [or ft]
Width B of the channel, in m [or ft]
Height P to the weir crest, in m [or ft]
C_e is a function of H/P and L/B
k_b is a function of L/B

Discharge Q in L/s [or cfs]
See USBR Manual for general methodology

INPUT DATA:       [Description]

Select Units:

Head H :


[ H > 0 ]

Length L :


[ L > 0 ]

Width B :


[ B > 0 ]

Height P :


[ P > 0 ]

OUTPUT:

Discharge Q : 0



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