Hazen-Williams Flow through an Open Channel Equation
Hazen-Williams method is only valid for water flowing at ambient temperatures, the Darcy-Weisbach method should be used for other liquids or gases. The Hazen-Williams Equation can be used for flow through an open channel or through a pressurized pipe.
Hazen-Williams flow through an open channel Equation formula |
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\(\large{ v = k \;C \; r_h^{0.63}\; m^{0.54} }\) | ||
Symbol | English | Metric |
\(\large{ v }\) = mean flow velocity | \(\large{\frac{ft}{sec}}\) | \(\large{\frac{m}{s}}\) |
\(\large{ k }\) = conversion factor | \(\large{ dimensionless }\) | |
\(\large{ C }\) = Hazen-Williams coefficient | \(\large{ dimensionless }\) | |
\(\large{ m }\) = hydraulic grade line slope | \(\large{ ft }\) | \(\large{ m }\) |
\(\large{ r_h }\) = hydraulic radius | \(\large{ ft }\) | \(\large{ m }\) |
Tags: Flow Equations Open Channel Equations Hazen-Williams Equations