In: Civil Engineering
A rectangular detention basin will be connected to outlet of the above drainage system to reduce the peak flow rate to 5m3/s. Determine the dimensions of the basin if the length of the basin is 3 times of the width. An orifice will be used as the outlet of the basin and the depth of water above the center of the orifice should be less than 2m. What is the size of the orifice?