Weir width (Water Overlay): Difference between revisions

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{{overlay attribute
[[File:Weir_width.jpg|300px|thumb|right|This figure depicts the original way of implementing weirs (left), and the current way they are implemented in the {{software}} (right)]]
|key=[[Weir_width_(Water_Overlay)|WEIR_WIDTH]]
{{Overlay keys|<onlyinclude>
{{Overlay keys|type=row|group=Water Overlay
|key=WEIR_WIDTH
|unit=m
|unit=m
|description=The width of the weir.
|description=The width of the weir.
|defaultvalue=5
|defaultvalue=5
|icon=[[File:waterwizard_icon_weir_width.png]]
|icon=waterwizard_icon_weir_width.png
}}
|range=0 to {{max surface}}
The width of the weir not only affects the amount of water which can flow across the weir, but also the amount of [[grid cell]]s on either side of the weir which allow water to flow through to the other side. The greater the weir's width, the more cells are considered to be part of the entry- and exitside of the weir.
}}</onlyinclude>}}
The amount of cells which are considered to be part of the entry- and exitside of the weir, are based on the value of the WEIR_WIDTH attribute. If the WEIR_WIDTH attribute is > 25m, the amount of cells has reached a maximum and does not increase anymore.




{{article end
|notes=[[File:valid_dam.png|thumb|right|Relation between [[Weir width (Water Overlay)|Weir width]], [[Weir height (Water Overlay)|Weir height]], [[Weir dam multiplier (Water Overlay)|Weir dam multiplier]] and elevation adjustments.]]
* Weir width affects both the volume of water flowing across the weir and the number of grid cells on either side that permit this flow. The greater the weir's width, the more cells are considered to be part of the entry- and exitside of the weir.
* The number of cells on the entry and exit sides depends on the WEIR_WIDTH attribute, limited by a maximum of 25m.
* The [[Weir dam multiplier (Water Overlay)|Weir dam multiplier]] attribute of a [[Water Overlay]] controls to what width and height the weir is raised to block the natural flow of water in a waterway.


[[File:Weir_width.jpg|800px]]


This figure depicts the original way of implementing weirs (left), and the current way they are implemented in the {{software}} (right).
|seealso=
 
* [[Weir formula (Water Overlay)]]
==See also==
* [[Weir dam multiplier (Water Overlay)]]
* [[Weir_formula_(Water_Overlay)|Weir formula]].
|api=*[[Api session event editor overlay set key value]]
*[[Api session event editor building set attribute]]
*[[Api session event editor functionoverride set attribute]]
}}
{{WaterOverlay hydraulic structure nav}}
{{WaterOverlay hydraulic structure nav}}

Latest revision as of 12:24, 13 July 2026

This figure depicts the original way of implementing weirs (left), and the current way they are implemented in the Tygron Platform (right)
Icon Key Unit Range Description Default value
WEIR_WIDTH m 0 to 10000 The width of the weir. 5


Notes

Relation between Weir width, Weir height, Weir dam multiplier and elevation adjustments.
  • Weir width affects both the volume of water flowing across the weir and the number of grid cells on either side that permit this flow. The greater the weir's width, the more cells are considered to be part of the entry- and exitside of the weir.
  • The number of cells on the entry and exit sides depends on the WEIR_WIDTH attribute, limited by a maximum of 25m.
  • The Weir dam multiplier attribute of a Water Overlay controls to what width and height the weir is raised to block the natural flow of water in a waterway.

See also

API Endpoints

Water Module
Water Module
Tutorials
Overview
Theory
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 n • 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 water area output • Object width output • Weir dam output
Related
Building attributes • Hydrological features •  Terrain attributes • Model attributes • Results • Simulation data
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