Hazen-Williams Flow through a Pressurized Pipe Equation
The Hazen-Williams Equation can be used for flow through an open channel or through a pressurized pipe.
Hazen-Williams flow through a pressurized pipe Equation
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\( p_d = 4.52 \; Q^{1.852} \;/\; C^{1.852} \; d^{4.8704} \) (US units) | ||
Symbol | English | Metric |
\( p_d \) = pressure drop over the length of pipe | \(lbf\;/\;in^2\) | \(Pa\) |
\( Q \) = flow rate | \(ft^3\;/\;sec\) | \(m^3\;/\;s\) |
\( C \) = Hazen-Williams coefficient | \(dimensionless\) | |
\( d \) = inside diameter of pipe | \(in\) | \(mm\) |
Hazen-Williams flow through a pressurized pipe Equation
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\( p_d = 10.67 \; Q^{1.852} \;/\; C^{1.852} \; d^{4.8704} \) (SI units) | ||
Symbol | English | Metric |
\( p_d \) = pressure drop over the length of pipe | \(lbf\;/\;in^2\) | \(Pa\) |
\( Q \) = flow rate | \(ft^3\;/\;sec\) | \(m^3\;/\;s\) |
\( C \) = Hazen-Williams coefficient | \(dimensionless\) | |
\( d \) = inside diameter of pipe | \(in\) | \(mm\) |
Tags: Pipe Sizing Flow Hazen-Williams