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Chapter 6 - Analysis of the test results
Distance to reference level [mm]
1000
900
800
700
Distance to reference level [mm]
1300
1200
1100
1000
900
800
700
First scour
600
900
0.0 m 5.0 m 10.0 m 15.0 m 20.0 m 25.0 m
Distance from the begining of the channel [m]
800
Duration of
the scour
process [h]
600
9 m 10 m 11 m 12 m
600
Distance from the begining of the channel [m]
15 m 16 m 17 m 18 m
Distance from the begining of the channel [m]
Evolution of the water and bed levels on the outer side wall
Distance to reference level [mm]
0.5
1
1.5
2
3
3.5
4
4.5
5
5.5
6
8
9
10
12
05
Evolution of the water and bed levels on the outer side wall
Second scour
1000
700
time evolution
Distance to reference level [mm]
1300
1200
1100
1000
900
800
Duration of
the scour
process [h]
0.8
1.3
1.8
2.8
3.3
3.8
4.3
4.8
5.3
5.8
7.3
9.3
11.1
12.1
0.8
Evolution of the water and bed levels 1.3 on the outer side wall
1.8
Second scour 2.8
33
1000
Distance to reference level [mm]
1000
900
800
700
700
First scour
600
0.0 m 5.0 m 10.0 m 15.0 m 20.0 m 25.0 m
800
Distance from the begining of the channel [m]
600
9 m 10 m 11 m 12 m
Distance from the begining of the channel [m]
the arrows are showing theDistance to reference level [mm]
time evolution
600
16 m 17 m 18 m 19 m
Distance from the begining of the channel [m]
Figure 6.15: Evolution of the water and bed levels along the outer side wall for tests without macro-roughness -
S 0 = 0.70%, Q = 150 (on top) and 180 l/s (bottom)
900
700
time evolution
page 130 / November 9, 2002
Wall roughness effects on flow and scouring