CE 704 · Chapter 4
Hydropower Engineering past question
4.4.2 Methods of dissipating energy below a dam, stilling basin, ski-jump and flip buckets, their suitability, hydraulics of stilling basin, the role of tail-water in energy dissipation
Design a hydraulic jump stilling basin for the flood discharge 25 m³/s/m flowing from an overfall spillway with the spillway crest 60 m above the downstream gravel river bed with a slope 0.001 and manning's roughness coefficient 0.028. Assume, Cd=0.75, σ=1.2, k=4.5 and sp.gr=2.65. [10]