Drainage datum (Water Overlay): Difference between revisions

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|defaultvalue=n/a
|defaultvalue=n/a
|icon=waterwizard_icon_drainage_datum.png
|icon=waterwizard_icon_drainage_datum.png
|range=-{{max surface}} to {{max surface}}
}}</onlyinclude>}}
}}</onlyinclude>}}


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* If no height is defined, the drainage is considered to be low enough for all groundwater to flow into the waterway.
* If no height is defined, the drainage is considered to be low enough for all groundwater to flow into the waterway.
* If no height attribute is defined, a [[drainage overflow threshold (Water Overlay)|DRAINAGE_OVERFLOW_THRESHOLD]] must be defined, otherwise the assumed low positioning of the drainage will prohibit surface water from flowing in or out.
* If no height attribute is defined, a [[drainage overflow threshold (Water Overlay)|DRAINAGE_OVERFLOW_THRESHOLD]] must be defined, otherwise the assumed low positioning of the drainage will prohibit surface water from flowing in or out.
** This means that the height attribute is ''required''  when using passive drainage, otherwise water will never be able to flow through do the drainage laying far below the surface.
** This means that the height attribute is ''required''  when using passive drainage, otherwise water will never be able to flow through to the drainage laying far below the surface.
|seealso=
|seealso=
|howtos=
|howtos=

Latest revision as of 09:04, 27 February 2024

Icon Key Unit Range Description Default value
Waterwizard icon drainage datum.png DRAINAGE_DATUM datum -10000 to 10000 The datum height of the drainage. n/a

Water can be drained out of the underground when it exceeds the drainage's datum height. Water in the underground lower than the drainage is out of reach, and cannot flow through the drainage.

Notes

  • The drainage height should be higher than the bottom of the waterway it drains water to.
  • If no height is defined, the drainage is considered to be low enough for all groundwater to flow into the waterway.
  • If no height attribute is defined, a DRAINAGE_OVERFLOW_THRESHOLD must be defined, otherwise the assumed low positioning of the drainage will prohibit surface water from flowing in or out.
    • This means that the height attribute is required when using passive drainage, otherwise water will never be able to flow through to the drainage laying far below the surface.
Water Module
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Water Module
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Tutorials
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Overview
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Theory
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Benchmarks
Group
Inlet
Inlet q • Inlet area • Inlet capacity •  Lower threshold •  Upper threshold • Inlet underground
Pump
Pump q •  Lower threshold •  Upper threshold • Pump angle • Pump capacity • Pump area
Culvert
Culvert diameter • Culvert rectangular height • Culvert threshold • Culvert n
Weir
Weir height • Weir width • Weir angle • Weir coefficient • Weir target level
Sewer overflow
Sewer overflow • Sewer overflow speed
Drainage
Drainage q • Drainage datum • Drainage active • Drainage overflow threshold
Output
Object flow output • Object height output • Object datum output a • Object datum output b • Object width output
Related
Building attributes • Hydrological features •  Terrain attributes • Model attributes • Results • Simulation data
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