14.42 A trapezoidal channel with a bottom width of 3.0 ft and side slopes having a ratio of 1:0.75 carries 0.80 f/s of water and is made from trowel-finished concrete. Use Y=0.05ft in (d)
a. Calculate the critical depth.
b. Calculate the minimum specific energy.
c. Plot the specific energy curve.
d. Determine the specific energy for the given depth and the alternate depth for this energy.
e. Determine the velocity of flow and the Froude number for each depth in (d).
f. Calculate the required slopes of the channel if the depths from (d) are to be normal depths for the given flow rate.