Explain equations for a triangular (v-notch weir), Civil Engineering

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Explain Equations for a triangular (V-notch weir)

Used for small flow rates. C2 is a coefficient which varies from 0.58 to 0.61 depending upon the notch angle.

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 Q = C2 (8/15tanσ/2) √2g (H)2.5

For a triangular weir with a 90 notch angle:

Q = 2.5 (H) 2.5


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