A rectangular channel of 4 m width conveys water at 8 m³/s under critical condition. Find the Specified energy for this flow.

A 3.5-cm-diameter pipe leaves a reservoir of surface elevation 80 m and drops to elevation 47 m, where it terminates into the atmosphere through a 1-cm-diameter nozzle. If the total head lost through the pipe and nozzle is 5 m, calculate the flowrate in m3/s

For a 100 MW hydro power plant, calculate the water volumetric flow ratefor the 3 head values of 50m, 100m and 300m. Assume effective head to be85% of the gross head.

Example. A 3-m wide channel carries a total discharge of 12 m³ s¹. Calculate: S (a) (b) the critical depth; the minimum specific energy;