Parameter Identification of Manning Roughness Coefficient Using ...
Parameter Identification of Manning Roughness Coefficient Using ...
Parameter Identification of Manning Roughness Coefficient Using ...
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(m)<br />
2.16<br />
2.14<br />
2.12<br />
2.1<br />
2.08<br />
2.06<br />
2.04<br />
2.02<br />
2<br />
initial bed line<br />
bed line<br />
water elevation<br />
1.98<br />
(m)<br />
0 1 2 3 4 5 6 7 8 9 10<br />
(m)<br />
2.16<br />
2.14<br />
2.12<br />
2.1<br />
2.08<br />
2.06<br />
2.04<br />
2.02<br />
2<br />
Fig.6<br />
t = 6.0(sec)<br />
initial bed line<br />
bed line<br />
water elevation<br />
1.98<br />
(m)<br />
0 1 2 3 4 5 6 7 8 9 10<br />
Fig.8<br />
t = 20.0(sec)<br />
(m)<br />
2.16<br />
2.14<br />
2.12<br />
2.1<br />
2.08<br />
2.06<br />
2.04<br />
2.02<br />
2<br />
initial bed line<br />
bed line<br />
water elevation<br />
1.98<br />
(m)<br />
0 1 2 3 4 5 6 7 8 9 10<br />
(m)<br />
2.16<br />
2.14<br />
2.12<br />
2.1<br />
2.08<br />
2.06<br />
2.04<br />
2.02<br />
2<br />
Fig.7<br />
t = 40.0(sec)<br />
initial bed line<br />
bed line<br />
water elevation<br />
1.98<br />
(m)<br />
0 1 2 3 4 5 6 7 8 9 10<br />
Fig.9<br />
t = 60.0(sec)<br />
Performance Function<br />
Performance Function<br />
9<br />
Performance Function<br />
8<br />
7<br />
6<br />
5<br />
4<br />
3<br />
2<br />
1<br />
0<br />
0 5 10 15 20 25 30 35 40 45<br />
Iteration Count<br />
Fig.10<br />
Performance Function<br />
1.4<br />
Performance Function<br />
1.2<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0<br />
0 2 4 6 8 10 12<br />
Iteration Count<br />
Fig.12<br />
Performance Function<br />
Case1<br />
Case2<br />
<strong>Manning</strong> roughness coefficient<br />
<strong>Manning</strong> roughness coefficient<br />
0.0325<br />
<strong>Manning</strong> roughness coefficient<br />
0.030<br />
0.0275<br />
0.025<br />
0.0225<br />
0.020<br />
0.0175<br />
0.015<br />
0.0125<br />
0 5 10 15 20 25 30 35 40 45<br />
Iteration Count<br />
Fig.11<br />
0.015<br />
0.0148<br />
0.0146<br />
0.0144<br />
0.0142<br />
0.014<br />
0.0138<br />
0.0136<br />
0.0134<br />
<strong>Manning</strong> <strong>Roughness</strong> <strong>Coefficient</strong><br />
0.0132<br />
<strong>Manning</strong> roughness coefficient<br />
0.013<br />
0 2 4 6 8 10 12<br />
Iteration Count<br />
Fig.13<br />
<strong>Manning</strong> <strong>Roughness</strong> <strong>Coefficient</strong><br />
23
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