Open-channel Flow

Open-channel flow, a branch of hydraulics, is a type of liquid flow within a conduit with a free surface, known as a channel. The other type of flow within a conduit is pipe flow. These two types of flow are similar in many ways, but differ in one important respect: the free surface. Open-channel flow has a free surface, whereas pipe flow does not.

Read more about Open-channel Flow:  Classifications of Flow, Summary of The Classification of Open-channel Flow, States of Flow

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