Hydraulic Radius of a Rectangular Channel

on . Posted in Fluid Dynamics

hydraulic radius of a rectangle 3Hydraulic radius, abbreviated as \(r_h\), is the area cross-section of water in a pipe or channel divided by the wetting perimeter.

 

Hydraulic Radius of a Rectangular Channel formula

\( r_h =  w \;h \;/\; w + 2\;h \)     (Hydraulic Radius of a Rectangular Channel)

\( w =  -\; 2 \; r_h \; h \;/\; r_h - h \)

\( h =   -\; r_h \; w \;/\; 2 \; r_h - w \) 

Symbol English Metric
\( r_h \) = hydraulic radius \( ft \) \( m \)
\( w \) = width of fluid \( ft \) \( m \)
\( h \) = depth of fluid \( ft \) \( m \)

 

P D Logo 1

Tags: Hydraulic Open Channel