Visualize levee breach from water body inside project area use case (Water Overlay): Difference between revisions
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==Steps== | ==Steps== | ||
The use-case can be implemented through the following steps. | The use-case can be implemented through the following steps. | ||
{{Editor steps|title= | {{Editor steps|title=visualize a breach | ||
|Configure a base hydrological system. | |Configure a base hydrological system. | ||
|[[How to add a breach manually|Add a breach]] to the project. | |||
|[[How to add and remove an area|Add a new Area]] to the project. | |[[How to add and remove an area|Add a new Area]] to the project. | ||
|Draw the Area in the location where the breach should take place. Make sure it extends all the way from the water to the floodable land. | |[[Draw the Area]] in the location where the breach should take place. Make sure it extends all the way from the water to the floodable land. | ||
|Add the [[Breach height (Water Overlay)|breach height]] attribute to the Area. | |Add the [[Breach height (Water Overlay)|breach height]] attribute to the Area. | ||
|Ensure the overlay is (re)calculated. | |Ensure the overlay is (re)calculated. |
Revision as of 08:35, 15 April 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.
Requirements
Before implementing this use-case, make sure you have a basic water model set up. For the specified scenario, the flooding overlay is required.
Also ensure the following in your project, if possible:
- The hydrological system has a SURFACE_LAST_VALUE or WATER_STRESS result type, either as main result or as a child result type.
- The simulation is set up to output a reasonable amount of timeframes. For a stabilization case, one timeframe per 12 hours of simulation time is reasonable.
Steps
The use-case can be implemented through the following steps.
How to visualize a breach:
- Configure a base hydrological system.
- Add a breach to the project.
- Add a new Area to the project.
- Draw the Area in the location where the breach should take place. Make sure it extends all the way from the water to the floodable land.
- Add the breach height attribute to the Area.
- Ensure the overlay is (re)calculated.
- Inspect the "Surface last value" result overlay.
- 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.