Numerical Simulation of Stepped Spillways with Front Step Deformation

Table 7

Calculation results of the energy dissipation rate of the type 3 spillway.

Type	Dam height (m)	Unit width discharge (m^2/s)	Weir crest velocity, (m/s)	Terminal velocity (m/s)	Terminal water depth (m)	Terminal Froude number, Fr	Energy dissipation rate,
3	H = 15	2.5	1.900	7.685	0.329	4.28	81.76
		4.5	2.312	9.308	0.458	4.39	74.35
		5.5	2.472	11.874	0.485	5.44	59.02
	H = 30	2.5	1.900	8.946	0.298	5.23	87.05
		4.5	2.312	12.154	0.383	6.27	76.63
		5.5	2.472	13.417	0.469	6.26	71.80
	H = 45	2.5	1.900	10.571	0.248	6.77	87.75
		4.5	2.312	13.078	0.354	7.02	81.54
		5.5	2.472	14.085	0.405	7.07	78.73