Hazen-Williams Pipe Inside Diameter Equation

This inside pipe diameter formula is used in Hazen-Williams equations and the coefficient formula.

 

Hazen-Williams Pipe Inside Diameter Equation formula

\(\large{ d = \left(   \frac {Q}{ 0.285 \; C \; m^{0.54} } \right)   ^{\frac {1}{2.63} }   }\)

Where:

\(\large{ d }\) = pipe inside diameter

\(\large{ Q }\) = flow rate

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

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