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Velocity Profile in Open Channel Flow
The average velocity is given by v = ∫ 0 d vdy d = 2.5v∗ d ∫ 0 d ln 33y κdy v =2.5V∗ln 12.14d κ v = 2.5ln 12.14d κ g R 1 2i 1 2 This theoretical equation can be compared with empirical equations that have been developed to express the mean velocity in an open channel: Chezy Equation v =CR 1 2 i 1 2 ⇒C =2.5ln 12.14d κ g
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