Flow Through Open Channels

Flow Through Open Channels – Describe the flow of a fluid through open channel. What is the formula to calculate flow and discharge through open channel.

According to Chezy formula, the mean velocity of liquid,


C = Chezy’s constant,

A = Area of flow,

m = Hydraulic mean depth

= Area of flow (A) / Wetted perimeter (P)

= d/4, for circular pipe

 According to Manning’s formula, discharge through an open channel,


M = Manning’s constant.

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