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==Stuff I've done==
==Stuff I've done==
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Flow (''Q'') in an open channel, such as a swale, may be calculated using Manning's equation:
<math>Q=VA=\frac{R^{\frac{2}{3}}S^{\frac{1}{2}}}{n}</math>
<math>Q=VA=\frac{R^{\frac{2}{3}}S^{\frac{1}{2}}}{n}</math>
Where:
Where:
<math>R=\frac{A}{P}</math>
<math>R=\frac{A}{P}</math>
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{{Plainlist|1=Where:
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*''Q'' = the flow in the swale (m<sup>3</sup>/s)
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*''A'' = the cross sectional area of the swale (m<sup>2</sup>)
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*''P'' = the wetted perimeter of the swale (m)
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*''S'' = the longitudinal slope (m/m)
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*''n'' = Manning's coefficient (dimensionless)
==Test stuff==
==Test stuff==