Numerical Simulation of Stepped Spillways with Front Step Deformation

Table 5

Calculation results for the type 1 dam’s energy dissipation rate.

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,
1	H = 15	2.5	1.900	8.923	0.290	5.29	75.40
		4.5	2.312	13.459	0.412	6.69	46.38
		5.5	2.472	14.334	0.431	6.97	40.29
	H = 30	2.5	1.900	10.997	0.201	7.84	80.43
		4.5	2.312	15.276	0.425	7.48	63.08
		5.5	2.472	16.506	0.437	7.97	57.32
	H = 45	2.5	1.900	14.003	0.232	9.29	78.51
		4.5	2.312	17.069	0.299	9.96	68.55
		5.5	2.472	18.524	0.331	10.28	63.21