A computational tool based on the Manning equation estimates the discharge rate of open channel flow. This equation considers factors like channel geometry, roughness coefficient, and hydraulic radius to determine flow velocity and subsequently, discharge. For example, it can be used to estimate the flow rate in a natural river, an irrigation canal, or a storm drain.
This tool provides crucial information for various hydraulic engineering applications. Accurate flow estimations are essential for designing efficient and safe water conveyance systems, managing flood risks, and allocating water resources effectively. Developed in the late 19th century by Irish engineer Robert Manning, the underlying equation has become a cornerstone of open channel hydraulics.