online_vee_notch2:   Calculation of discharge through a partially contracted 90° V-notch weir Formula: Q = 4.28 Ce (H + 0.0029)5/2          [in U.S. Units] Head H on the weir, in m [or ft] Width B of the channel, in m [or ft] Height P to the weir crotch, in m [or ft] Ce is a function of H/P and P/B Discharge Q  in L/s [or cfs] For a partially contracted 90° V-notch weir:   H/B ≤ 0.4 Fully contracted weir calculator See USBR Manual for general methodology INPUT DATA:       [Description] Select Units:      SI (metric) U.S. Customary Head H :         [ H > 0 ] Width B :         [ B > 0 ] Height P :         [ P > 0 ] OUTPUT: Warning:  Ratio H/B = 0 < 0.2. Weir is fully contracted. Discharge  Q :   0     Your request was processed at  10:49:22 am on January 22nd, 2025   [ 250122  10:49:22 ]. Thank you for running   online_vee_notch2   Please call again.   [131111]