online_vee_notch1: Calculation of discharge
through a fully contracted Vnotch weir

Formula:
Head H on the weir, in m [or ft]
Width B of the channel, in m [or ft]
Side width b, in m [or ft]
Angle θ in radians
C_{e} and k are function only of θ (in degrees)
Discharge Q in L/s [or cfs]
For a fully contracted Vnotch weir: H/B ≤ 0.2
Partially contracted 90° Vnotch weir calculator
See USBR Manual for general methodology

Your request was processed at 08:50:17 am on June 2nd, 2023 [
230602 08:50:17 ].
Thank you for running online_vee_notch1 Please call again.
[131111]
