Calculate the discharge of water in such a channel having semicircular bottom of 3 m diameter and two sides as vertical when the depth of flowis 2.7 m. Take Chezy’s constant equal to 60 and slope of the bed as 1 in 2000

Example 12.3. A small reservoir has a spillway crest elevation 200.0 m. Above this elevation, the storage and outflow from the reservoir can be expressed as: Storage: S=36000 + 18000y m³, Outflow Q=10y m³/s, where y is height of water above spillway crest in m. Route an inflow hydrograph which can be approximated by a triangle as: 1=0 at t=0, 1=30 m³/s at t=6 h and I = 0 at t = 26 h Assume at t= 0.y=0 and use At = 2 h

A trapezoidal channel having side slopes of 1:1 and bed slope of 1 in 805 is required to carry a discharge of 0.001242 m3/min. Find the dimensions of the channel for minimum cross-section. Take Chezy’s constant as 50.

Civil