CIV E 445 - APPLIED HYDROLOGY
SPRING 2014
LAB No. 11
Given the following inflow hydrograph to a certain stream channel reach, calculate the outflow by the Muskingum method.
Assume baseflow 10 m3/s, K = 1 h, X = 0.2, Δt = 1 h.
Report peak outflow and time of occurrence. Use a spreadsheet and verify with ONLINE ROUTING 04.
| Time (h) | 0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
| Inflow (m3/s) | 10 |
20 |
40 |
80 |
120 |
150 |
120 |
60 |
50 |
40 |
30 |
20 |
10 |
Route the following flood wave using a linear forward-in-time/backward-in-space numerical scheme of the kinematic wave equation (similar to the convex method). Assume baseflow 0 m3/s, V = 1 m/s, β = 1.5, Δx = 1200 m, and Δt = 10 minutes.
| Time (min) | 0 |
10 |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
| Inflow (m3/s) | 0 |
1 |
2 |
4 |
8 |
10 |
8 |
4 |
2 |
1 |
0 |
Determine is a flood wave with the following characteristics is a kinematic wave: time-of-rise tr = 6 hr;
bottom slope So = 0.015, average flow velocity Vo = 1.5 m/s; and average flow depth do = 3 m.
Determine is a flood wave with the following characteristics is a diffusion wave: time-of-rise tr = 6 hr;
bottom slope So = 0.005, average flow velocity Vo = 1.5 m/s; and average flow depth do = 3 m.
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