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
Check whether hydraulic jump type stilling basin is required or not for a hydropower project. Given that discharge is 100 cumec flowing through 10 m long overflow spillway. The height of spillway crest is 30 m from downstream bed with a slope of river as 1 in 500, Manning's roughness coefficient is 0.018 and coefficient of discharge is 0.75. [6]