Hydraulic Radius of a Rectangular Channel

on 19 February 2018. Posted in Fluid Dynamics

hydraulic radius of a rectangle 3 Hydraulic 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	\( ft \)	\( m \)

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