Hazen-Williams Equation Hydraulic Radius

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

This hydraulic radius formula is used in Hazen-Williams equations and the coefficient formula.

Hazen-Williams Equation Hydraulic Radius formula

\(\large{ r_h = \left(   \frac {v} { 1.318C   m^{0.54} } \right)       ^{\frac {1}{0.63} }  }\)

Where:

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

\(\large{ C }\) = Hazen-Williams Coefficient

\(\large{ m }\) = hydraulic grade line slope

\(\large{ v }\) = mean flow velocity

 

Tags: Equations for Open Channel