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

\( r_h =  \frac  {  A }  { P_w }   \)

Where:

\( r_h\) = hydraulic radius

\(A\) = area of cross section flow

\( P_w\) = wetted perimeter

Solve for:

\(A =  r_h  P_w  \)

\(P_w = \frac { A } { r_h}  \)

 

 

Tags: Equations for Pipe Equations for Hydraulic