Weir (Water Overlay) and External area (Water Overlay): Difference between pages

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{{Water Module buttons}}
{{Overlay attribute
 
|attribute=[[External_area_(Water_Overlay)|EXTERNAL_AREA]]
Weirs are effectively small dams in the water, and allow water to flow from a water body with a higher water level to a lower water level. Any water exceeding the height of the weir can flow over it, increasing the throughput as the water level increases. Strictly, water can flow over the weir in either direction.
|unit=m²
 
|description=The surface area of the external water body behind the breach. The larger the external water body, the more water can flow from it (or into it), and the smaller the effect of the inflow or outflow of water on the external water level.
[[File:waterwizard_icon_weir.png]] A weir is a [[Line-based_construction_(Water_Overlay)|line-based construction]].
{{overlay attribute
|attribute=[[Weir_height_(Water_Overlay)|WEIR_HEIGHT]]
|unit={{mdatum}}
|description=The height of the weir. Water can flow past the weir when the water level exceeds the weir's height.
|defaultvalue=n/a
|defaultvalue=n/a
|icon=[[File:waterwizard_icon_weir_height.png]]
|icon=[[File:waterwizard_icon_external_area.png]]
|attribute2=[[Weir_width_(Water_Overlay)|WEIR_WIDTH]]
|unit2=m
|description2=The width of the weir.
|defaultvalue2=5
|icon2=[[File:waterwizard_icon_weir_width.png]]
|attribute3=[[Weir_coefficient_(Water_Overlay)|WEIR_COEFFICIENT]]
|unit3=coefficient
|description3=The flow coefficient related to the shape of the weir.
|defaultvalue3=1,1
|icon3=[[File:waterwizard_icon_weir_coefficient.png]]
}}
}}
==Notes==
* When a [[Breach_input_area_(Water Overlay)|breach input area]] is defined, an external water body will not be created. Subsequently, the [[External_surface_level_(Water_Overlay)|EXTERNAL_SURFACE_LEVEL]], [[External_water_level_(Water_Overlay)|EXTERNAL_WATER_LEVEL]] and [[External_area_(Water_Overlay)|EXTERNAL_AREA]] attributes will be ignored.
==See also==
==See also==
* [[Breach growth formula (Water Overlay)|Breach growth formula]]
* [[Breach flow formula (Water Overlay)|Breach flow formula]]
* [[Weir formula (Water Overlay)|Weir formula]]
* [[Weir formula (Water Overlay)|Weir formula]]
{{WaterOverlay hydraulic structure nav}}
{{WaterOverlay hydrological features nav}}
 
{{Water Module buttons}}

Revision as of 14:19, 19 June 2019

Template:Overlay attribute

Notes

See also

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
Water area
Water level • Water relative
Sewer area
Sewer storage • Sewer pump speed
Inundation area
Inundation level
Aquifer
Aquifer kd • Aquifer datum
Breach
Breach height • Breach width • Breach angle • Breach coefficient • Breach speed • Breach input area • Breach level area • External surface level • External water level • External area
Rain area
Rain m
Limitation area
Limit area
Output
Object flow output • Object height output • Object datum output a • Object datum output b • Object width output
Related
Building attributes • Hydraulic structures •  Terrain attributes • Model attributes • Results • Simulation data


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Introduction button.png
Water Module
Benchmarks button.png
Getting started button.png
Tutorials
Benchmarks button.png
Overview button.png
Overview
Benchmarks button.png
Theory button.png
Theory
Benchmarks button.png
Benchmarks button.png
Benchmarks
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