Numerical Simulation of Stepped Spillways with Front Step Deformation

Table 6

Calculation results of the energy dissipation rate of the type 2 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,
2	H = 15	2.5	1.900	8.299	0.290	4.92	78.72
		4.5	2.312	12.077	0.383	6.23	56.82
		5.5	2.472	12.722	0.428	6.21	52.96
	H = 30	2.5	1.900	9.552	0.264	5.94	85.24
		4.5	2.312	12.892	0.412	6.41	73.71
		5.5	2.472	13.796	0.432	6.70	70.19
	H = 45	2.5	1.900	12.585	0.226	8.45	82.64
		4.5	2.312	14.205	0.361	7.55	78.22
		5.5	2.472	14.679	0.409	7.33	76.90