P.2.2 Determine if the flow is subcritical or supercritical in the channels tabulated below.
Section type
b (ft)
Q (cfs)
do (ft)
m
y (ft)
Rectangular Trapezoidal Triangular Circular
5.0 6.0 0
100 200 45 100
0 2 1.5
2.0 2.8 2.0 3.2
5
P.2.3 Calculate and plot the specific energy diagrams for each of the channels in Problem P.2.1 for the given discharge, and verify your answers to Problem P.2.1.