Hazen-Williams Hydraulic Grade Equation
This hydraulic grade formula is used in Hazen-Williams equations and the coefficient formula.
Hazen-Williams Hydraulic Grade Equation formulas
\(\large{ m = \left( \frac {v} { 1.318\;C \; r_h^{0.63} } \right) ^{\frac {1}{0.54} } }\) | |
\(\large{ m = \left( \frac {Q} { 0.285\;C \; d^{2.63} } \right) ^{\frac {1}{0.54} } }\) |
Where:
\(\large{ m }\) = hydraulic grade line slope
\(\large{ Q }\) = flow rate
\(\large{ C }\) = Hazen-Williams coefficient
\(\large{ r_h }\) = hydraulic radius
\(\large{ d }\) = inside diameter of pipe
\(\large{ v }\) = mean flow velocity
Tags: Equations for Hydraulic Equations for Open Channel Equations for Hazen-Williams