Difference between revisions of "Flow in a swale"

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[[File:Swale_sections.PNG|frameless|300 px]]
{{float right|[[File:Swale_sections.PNG|frameless|300 px]]}}
Flow (''Q'') in an open channel, such as a [[swale]], may be calculated using Manning's equation:
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>

Revision as of 17:26, 3 July 2019

Swale sections.PNG Flow (Q) in an open channel, such as a swale, may be calculated using Manning's equation: Where:

Where:

  • Q = the flow in the swale (m3/s)
  • A = the cross sectional area of the swale (m2)
  • P = the wetted perimeter of the swale (m)
  • S = the longitudinal slope (m/m)
  • n = Manning's coefficient (dimensionless)