Problem:
Consider a rectangular, finished concrete channel with a width of 5m. (a) Plot the Specific Energy diagram for Q=75 m^3/s. (b) Label the subcritical, supercritical, and critical regions of the diagram. (c) What is the critical depth? (d) Upstream of a small bump, the flow depth is 6m. If the small bump has an elevation of 0.5m above the channel bottom, what is the flow depth over the bump? Label this transition from point 1 (upstream) to point 2 (over the bump) on your specific energy diagram. You can neglect head loss over the bump.
Note: Provide thorough explanation of the given question.