canalenlinea_04:   Pendiente crítica en un canal prismático Fórmulas Q = (k/n) AR2/3S1/2 Q2 = (k/n)2 A2 R4/3S R = A/P Q2 = [(k/n)2 A10/3 S] / P4/3 S = (Q2 P4/3) / [(k/n)2 A10/3] F = V/(gD)1/2 F2 = V2/(gD) V = Q/A V2 = Q2/A2 D = A/T F2 = (Q2T) / (gA3) En flujo crítico:     F2 = 1 Q2T = gA3 S = (Q2 P4/3) / [(k/n)2 A3 A1/3] S = (g T Q2 P4/3) / [g T (k/n)2 A3 A1/3] Sc = (g Pc4/3) / [Tc (k/n)2 Ac1/3] S = (g Pc4/3) / [Tc (k/n)2 Rc1/3 Pc1/3] Sc = [g (Pc/Tc)] / [(k/n)2 Rc1/3] Sc = g n2 (Pc/Tc) / (k2 Rc1/3) En Unidades SI: Sc = 9.81 n2 (Pc/Tc) / Rc1/3 En Unidades U.S.: Sc = 32.17 n2 (Pc/Tc) / (1.4862 Rc1/3)