Table 2 The velocities (m/s) along the approach channel for different layouts
From: Optimization of hydraulic design of approach channel of spillway by hydraulic model studies
| Â | Approach channel (200Â m wide at narrow section with 145-m-long guide bund) | Approach channel (660Â m wide at narrow section with 760-m-long guide bund) | Approach channel (450Â m wide at narrow section with 500-m-long guide bund) | Approach channel (550Â m wide at narrow section with 500-m-long guide bund) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ch | Left | Centre | Right | Lft | Centre | Rgt | Lft | Centre | Rgt | Lft | Centre | Rgt |
0 | 3.9 | 4.4 | 4.9 | 3.4 | 4.8 | 4.0 | 4.0 | 5.5 | 4.0 | 3.8 | 5.5 | 3.9 |
100 | 2.3 | 5.5 | 3.5 | 2.4 | 5.8 | 3.0 | 1.3 | 7.7 | 1.6 | 0.3 | 7.4 | 0.9 |
200 | 12.6 | 6.6 | 1.8 | 4.0 | 7.8 | 2.0 | 1.7 | 8.6 | 1.1 | 0.5 | 8.0 | 0.6 |
500 | 5.2 | 4.8 | 5.3 | 8.8 | 7.8 | 2.3 | 1.9 | 10.1 | 1.8 | 1.3 | 9.0 | 1.2 |
800 | 5.9 | 6.7 | 6.6 | 7.8 | 6.4 | 2.0 | 6.9 | 9.8 | 1.9 | 8.1 | 9.5 | 1.4 |
1100 | 7.0 | 7.1 | 7.1 | 8.1 | 8.2 | 2.3 | 7.2 | 9.0 | 2.4 | 6.7 | 9.0 | 3.4 |
1400 | 6.3 | 5.9 | 5.4 | 7.4 | 7.5 | 1.0 | 7.3 | 8.6 | 2.8 | 7.0 | 7.9 | 8.6 |
1700 | 5.1 | 3.9 | 4.7 | 11.5 | 13.4 | 3.0 | 3.4 | 5.4 | 5.0 | 2.9 | 5.9 | 6.8 |
2000 | 5.1 | 6.7 | 5.2 | 5.1 | 4.4 | 9.3 | 2.9 | 7.8 | 7.6 | 2.7 | 4.8 | 5.5 |