Polynomial Weirs
Polynomial weirs are versatile weirs, which have openings of width b varying with height y according to polynomial equations of any order n>= 0. The general equation for the width b of a polynomial weir is:
General Head-Discharge Equation of Polynomial Weirs
The general head-discharge equation of a polynomial weir of any order n was derived by (Baddour 2008), and is:
Note, the well known weir equations for rectangular, triangular, parabolic …. etc weirs, are all correctly recovered as special cases for values of n = 0, 1, 2 …..etc.