Geology Reference
In-Depth Information
( ) Laminar flow
a
()Turbulent flow
b
Surface velocity (
V
S
)
Mean velocity (0.8 )
V
S
Water surface
0
0
0.5
0.5
0.6
depth
Velocity
profile
1.0
1.0
1.5
1.5
Flow 'layers'
2.0
2.0
Laminar
sublayer
Bed
2.5
2.5
0
0.1
0.2
0.3
0
0.1
0.2
0.3
Velocity (m/s)
Velocity (m/s)
Figure 3.8
Velocity profiles of (a) laminar and (b) turbulent flow in a river.
Mean flow velocity,
v
Channel slope,
s
Width,
w
Wetted perimeter, P
Depth,
d
Figure 3.9
Variables used in describing streamflow.
