Effect of Bed Roughness and Negative Step on Characteristics of Hydraulic Jump in Rectangular Stilling Basin

Table 2

The average value of the bed shear coefficient.

Experiments	Bed shear coefficient
ks = 0 cm, s = 0 cm	5.158
ks = 1.33 cm, s = 0 cm	19.02
ks = 2.2 cm, s = 0 cm	31.05
ks = 0 cm, s = −3 cm	3.203
ks = 1.33 cm, s = −3 cm	14.94
ks = 2.2 cm, s = −3 cm	22.56
ks = 0 cm, s = −6 cm	−3.2
ks = 1.33 cm, s = −6 cm	8.469
ks = 2.2 cm, s = −6 cm	15.43