Hydraulic Radius of a Trapezoidal Channel (Equal Side Slopes)
Hydraulic radius ( \(r_h\) ) is the cross section area of water in a pipe or channel divided by the wetting perimeter.
Hydraulic Radius of a Trapezoidal Channel (Equal Side Slopes) formula
\(\large{ r_h = \frac { h \left( b + z h \right) } { b + 2h \sqrt { 1 + z^2 } } }\)
Where:
\(\large{ r_h }\) = hydraulic radius
\(\large{ b }\) = bottom width of fluid
\(\large{ h }\) = depth of fluid
\(\large{ z }\) = width of channel slope
Tags: Equations for Hydraulic