CIV E 530 - OPEN-CHANNEL HYDRAULICS
FALL 2011
LAB No. 2: PROPERTIES OF OPEN CHANNELS
- Calculate the velocity distribution coefficients for the following
All-American canal data:
Flow area A = 2768 ft2
| Increment | velocity v (fps)
| Incremental
flow area ΔA (%)
| | 1 | 3.5 | 0.5
| | 2 | 4.0 | 2.9
| | 3 | 4.5 | 10.3
| | 4 | 5.0 | 23.5
| | 5 | 5.5 | 52.7
| | 6 | 6.0 | 10.1
|
Compare these calculations with the results of approximate formulas.
- A spillway is designed for q = 8 m3/s/m
with a depth d = 0.8 m. The resulting flow near the crest will be convex.
What should be the radius of curvature of the spillway
cross section to ensure that the
pressure does not fall below 50% of hydrostatic?
|