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Created page with "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> Where: <math>R=\frac{A..."
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>
Where:
<math>R=\frac{A}{P}</math>
{{Plainlist|1=Where:
*''Q'' = the flow in the swale (m<sup>3</sup>/s)
*''A'' = the cross sectional area of the swale (m<sup>2</sup>)
*''P'' = the wetted perimeter of the swale (m)
*''S'' = the longitudinal slope (m/m)
*''n'' = Manning's coefficient (dimensionless)}}
<math>Q=VA=\frac{R^{\frac{2}{3}}S^{\frac{1}{2}}}{n}</math>
Where:
<math>R=\frac{A}{P}</math>
{{Plainlist|1=Where:
*''Q'' = the flow in the swale (m<sup>3</sup>/s)
*''A'' = the cross sectional area of the swale (m<sup>2</sup>)
*''P'' = the wetted perimeter of the swale (m)
*''S'' = the longitudinal slope (m/m)
*''n'' = Manning's coefficient (dimensionless)}}