CIV E 530 - OPEN-CHANNEL HYDRAULICS
SPRING 2013
LAB No. 2:  PROPERTIES OF OPEN CHANNELS


  1. Calculate the velocity distribution coefficients for the following All-American canal data:

    Flow area A = 2768 ft2

    Incrementvelocity v (fps) Incremental
    flow area ΔA (%)
    13.50.5
    24.02.9
    34.510.3
    45.023.5
    55.552.7
    66.010.1

    Compare these calculations with the results of approximate formulas.

  2. A spillway is designed for q = 6 m3/s/m with a depth d = 0.5 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?