Hydraulic Diameter of a Square Tube Formula |
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| \( d_h \;=\; w \) | ||
| Symbol | English | Metric |
| \( d_h \) = hydraulic diameter | \(in\) | \(mm\) |
| \( w \) = width of tube | \(in\) | \(mm\) |
Hydraulic diameter, abbreviated as \(d_h\), of a square tube is when the flow is within the tube.
