Normal Flow in Open Channels



Input     Channel Parameters
Type of channel  
Manning's coefficient n
Slope S
V-shaped channel Semi-vertex angle (deg) α
Rectangular channel Width (m) w
Trapezoidal channel Base width (m) b
Side slope angle (deg) θ
Circular channel Diameter (m) D

Calculations     Other Output
Depth (m) h
Quantity of flow (m3 s-1) Q

Set one of h or Q and calculate the other.

Wetted perimeter (m) P
Area (m2) A
Hydraulic radius (m) Rh
Bulk velocity (m s-1) V
Mean depth (m) hav
Surface width (m) bs
Froude number Fr
Critical depth (m) hc