The calculations are using Mannings equation.
Not only the answer but also the way of solution also given.
The discharge is calculated by calculation of following.
Flow Area
Wetted Perimeter
Hydraulic radius
Discharge
This ill not only help for Civil Engineers but also for Civil Engineering students.
Version history
1.2
2021-12-10
Modified GUI
1.1
2020-03-11
Modified GUI
1.0
2018-08-23
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No unit options. The flow is given with a volume unit and not a flow rate for circular pipe. CF is not a flow rate. CFS, CFM or CFH would be flow rates. It also comes up with 6.666?