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v-notch-weir

V Notch Weir Discharge Calculator

Calculate the water flow rate of V shaped or triangular shaped weir using this V notch water discharge calculators.

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V-Notch Weir Discharge Calculation

V - Notch angle (θ) =
Head on the Weir (h) =  
Discharge Constant (Cd) =  


Flow Rate (q) = m³/s

 
   
  
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Formula
q = 8/15 ×Cd ×(2g)1/2 ×tan(θ/2) ×h3/2

Where,
    q = Flow Rate
    Cd = Discharge Constant
    θ = V - Notch Angle
    g = gravity (9.81 m/s²)
    h = Head on the Weir

V Notch weir calculator for appropriate calculations of water discharge in open channels such as streams.