CIVIL ENGINEERING FORMULAS

7

6

5

L

d 2

4

3

Steady jump

Undular

jump

Weak

jump

Oscillating

jump

Surface Wavy

turbulence only

Best

performance

Acceptable

performance

Roller

L

d 1 d 2

V 1

Strong jump

Expensive stilling basin and

rough surface conditions

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

F 1 = V 1 /√gd 1

FIGURE 12.18 Length of hydraulic jump in a horizontal channel depends on sequent depth d 2 and the Froude number of the approaching flow.

324