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 at the toe of the spillway with the following data: Discharge = 80 m³/s; Width of the spillway = 8m; Spillway crest level = 96.00m; River bed level = 65.00m; Tail water level = 71.00m; Coefficient of discharge = 0.7; Downstream bed slope(i) = 1:500 and Manning's roughness coefficient = 0.016 and ratio of length of stilling basin and sequent depth = 5.1. [9]