V-Notch Weirs
V-Notch weirs are defined in Drainage and Utilities by the following equation:
Q | = | flow (cfs, cms) | |
C | = | coefficient of discharge (US, SI forms) | |
g | = | gravitational constant | |
è | = | angle of notch (degrees) | |
H | = | head above the bottom of the notch (ft, m) |
H is measured from the water level to the bottom crest of the weir.