Mode (Water Overlay): Difference between revisions

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It does not influence the evaluation frequency of the surface water simulation when [[Surface_water_(Water_Overlay)|surface water]] is set to the '''Shallow''' or '''Hybrid''' mode.
It does not influence the evaluation frequency of the surface water simulation when [[Surface_water_(Water_Overlay)|surface water]] is set to the '''Shallow''' or '''Hybrid''' mode.


===Modes===
There are three modes available:
There are three modes available:


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* Normal: Average mode between Speed an Accuracy. Mode factor 2.  
* Normal: Average mode between Speed an Accuracy. Mode factor 2.  
* Accuracy: Highest frequencies, greatest detail in water movements. Mode factor 1.
* Accuracy: Highest frequencies, greatest detail in water movements. Mode factor 1.
===Timesteps===
The cell size is defined by dx. The timesteps are in seconds.


The mode has the following effects on timesteps:
The mode has the following effects on timesteps:
 
* Horizontal groundwater timestep = min ( 5 * dx * modeFactor , 120 )
* Groundwater timestep (seconds) = min ( 5 * dx * modeFactor , 120 )
* Vertical groundwater timestep is based on whether shallow water simulation is selected.
* Surface water timestep (seconds) is based on whether shallow water simulation is selected.
** Shallow water active: 2 * modeFactor.
**  
** Shallow water not active: Horizontal groundwater timestep
 
* Structures and features:
{| {{STDT|overlay sortable}}
** Average areas mode: 0.5 * Vertical groundwater timestep
|-
** No average areas: 1.0 * Vertical groundwater timestep
!  !! Average !! Speed !! Speed !! Description
|-
||Sewer inflow speed || Once per 2 seconds || Once per 4 seconds || Once per 6 seconds || How often water flows from the surface into a sewer via a sewered Construction
|-
|| ... || ... || ... || ... || ...
|}


{{WaterOverlay formula nav}}
{{WaterOverlay formula nav}}

Latest revision as of 09:59, 11 February 2022

This article is a stub.

The mode of the Water Overlay affects the taken time steps, and with it the evaluation frequency, for ground water and hydraulic structures of the simulation.

Surface water simulation time steps are only depended on this mode when surface water mode is set to the Avg Waterway or Avg Terrain.

It does not influence the evaluation frequency of the surface water simulation when surface water is set to the Shallow or Hybrid mode.

Modes

There are three modes available:

  • Speed: Lowest frequencies, fastest calculations. Mode factor 3.
  • Normal: Average mode between Speed an Accuracy. Mode factor 2.
  • Accuracy: Highest frequencies, greatest detail in water movements. Mode factor 1.

Timesteps

The cell size is defined by dx. The timesteps are in seconds.

The mode has the following effects on timesteps:

  • Horizontal groundwater timestep = min ( 5 * dx * modeFactor , 120 )
  • Vertical groundwater timestep is based on whether shallow water simulation is selected.
    • Shallow water active: 2 * modeFactor.
    • Shallow water not active: Horizontal groundwater timestep
  • Structures and features:
    • Average areas mode: 0.5 * Vertical groundwater timestep
    • No average areas: 1.0 * Vertical groundwater timestep
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