Open Channel Flow

Calculate open channel flow using Manning's equation.

Horizontal measurement perpendicular to length.
ft
Measurement of how deep something extends.
ft
Angle of incline, often as ratio or percentage.
%
Numerical input for the calculation.
Angle of incline, often as ratio or percentage.

Results

Flow Area:
Calculated surface area.
-ft²
Velocity:
Calculated speed or velocity.
-ft/s
Flow Rate:
Calculated flow rate.
-cfs
Reference: AWWA/EPA Standards. Manning's equation.