CEM02(V) et CEM02(D) : Trapezoidal sills and gates

These 2 equations are the sum of one of “Cem88(V)” and “CEM88(D)” equations with a triangular sill.

Kindsvater-Shen formula[[Norme NF X 10-311 : Mesure de débit de l’eau dans les canaux découverts au moyen de déversoirs en mince paroi]] is used for the triangular part :

\(Q=C_e\frac{8}{15}\mathrm{tan}\frac{\alpha}{2}\sqrt{2g} h^{5/2}\)

The discharge coefficient \(C\) used in SIC is \(C=C_e\frac{8}{15}\sqrt{2g}\). \(C=\approx1,37\) for \(C_e=0,58\) as suggested by the norm[[<1>]].

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