Hydraulic Radius

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

Hydraulic Radius

Hydraulic radius ( \(r_h\) ) is the cross section area of water in a pipe or channel divided by the wetting perimeter.

Hydraulic Radius formula

\(\large{ r_h =  \frac  {  A }  { P }   }\)         

Where:

\(\large{ r_h }\) = hydraulic radius

\(\large{ A }\) = cross section flow area

\(\large{ P }\) = wetted perimeter

Solve for:

\(\large{ A =  r_h  P  }\)

\(\large{ P = \frac { A } { r_h}  }\)

 

Tags: Equations for Pipe Equations for Hydraulic