Visualize levee breach from water body inside project area use case (Water Overlay): Difference between revisions

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In this scenario we want to simulate a levee breach near an adjacent waterbody. ''In this example, the whole waterbody is present in the 3D project.'' This is important to notice, to model the correct volume of the waterbody. If your waterbody is too large or your project is smaller, you can model the breach area differently, see therefore the use case below.
When a levee breaks water is free to flow through the breach and onto otherwise dry land. There are multiple ways of simulating a breach in a levee.
In this scenario you would want to have the breach connected to the water body, since we are going to use the water level of the waterbody to determine the flooding.  


In the steps here, the breach area is drawn in the Editor. It is also possible to import a [[GeoJSON]] file with the location of the breach.
This scenario assumes the water body from which water will flow through the levee is located in the project area in its entirety.


{{Editor steps|title= set-up the breach area
==Steps==
|In the Editor go to GEO Data --> Areas
The use-case can be implemented/completed through the following steps.
|Add a new area by clicking in the bottom left corner.
{{Editor steps|title=visualize a breach
|Select the newly created area (named Area) and give it a fitting name on the right
|[[How to add and remove an Overlay|Add a Flooding Overlay]].
|Zoom in to the location where you want to have the breach and click on the Adjust area button
|Configure the Overlay with a [[Basic water model use case (Water Overlay)|basic hydrological system]].
|Select the location of your breach and click on Apply settings. Make sure the breach is connected to the water body.  
|[[How to add and remove a Result type|Add a Result type]] of type '[[Surface last value result type (Water Overlay)|Surface last value]]' to the Overlay (if the result type was not yet present).
|Go to the tab attributes and set the breach floor attribute by adding the attribute name, value and clicking on save.  
|Either [[How to add a breach with input area manually|manually add a breach and input area]] to the project, or [[How to import a breach with input area|import a breach and input area]].
|Ensure the Overlay is [[Calculation_panel|(re)calculated]].
|Inspect the 'Surface last value' result.
|Select the 'play' option in the Overlay's legend. The animation will show the flow of the water from the breach.
}}
}}
<gallery mode=nolines>
File:Create_area.JPG
File:Location_area.JPG
File:Draw_area.JPG
File:Area_attributes.JPG
</gallery>


{{Editor steps|title= configure the flooding
==Notes==
|Add a [[Flooding_(Overlay)|Flooding Overlay]] and go to the [[Water_Overlay#Configuration_Wizard|Configuration Wizard]] of the Flooding Overlay.
Multiple breaches can be added to the same project, by repeating the step for adding breaches to the project.
|In step 2.1 select the attribute that specifies your breach floor so the software knows which area is your breach area.
 
|Click on ''Next''.
{{WaterOverlay usecases nav}}
|In the dropdown menu choose the name of your breach area and check if the attributes correspond with what you have set as attributes or change them here.
|In step 2.2 import your water level areas with at least a water level attribute.
|Finish the Wizard and refresh the Overlay.
|After the flooding is calculated, check the [[Water_Overlay#Show_Water_Balance|Water Balance]] to get more insight in your scenario.
}}
<gallery mode=nolines>
</gallery>

Latest revision as of 11:57, 20 November 2019

When a levee breaks water is free to flow through the breach and onto otherwise dry land. There are multiple ways of simulating a breach in a levee.

This scenario assumes the water body from which water will flow through the levee is located in the project area in its entirety.

Steps

The use-case can be implemented/completed through the following steps.

How to visualize a breach:
  1. Add a Flooding Overlay.
  2. Configure the Overlay with a basic hydrological system.
  3. Add a Result type of type 'Surface last value' to the Overlay (if the result type was not yet present).
  4. Either manually add a breach and input area to the project, or import a breach and input area.
  5. Ensure the Overlay is (re)calculated.
  6. Inspect the 'Surface last value' result.
  7. Select the 'play' option in the Overlay's legend. The animation will show the flow of the water from the breach.

Notes

Multiple breaches can be added to the same project, by repeating the step for adding breaches to the project.

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Group
Water system model
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Flooding
Visualize levee breach from water body inside project area use case
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