Tracer flow model (Water Overlay): Difference between revisions

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* It is currently not possible to let substances flow into and out of the sewer.
* It is currently not possible to let substances flow into and out of the sewer.
* Substances can also be used as a tool to track water flow.
* Substances can also be used as a tool to track water flow.
==Related formulas==
* [[Surface flow formula (Water Overlay)|Surface flow formula]]
* [[Underground flow formula (Water Overlay)|Underground flow formula]]
* [[Surface infiltration formula (Water Overlay)|Surface infiltration formula]]
* [[Underground infiltration formula (Water Overlay)|Underground infiltration formula]]
* [[Culvert formula (Water Overlay)|Culvert formula]]
* [[Weir formula (Water Overlay)|Weir formula]]
* [[Breach flow formula (Water Overlay)|Breach flow formula]]
* [[Pump formula (Water Overlay)|Pump formula]]


==Related models==
==Related models==

Revision as of 13:38, 14 June 2019

Substances can be modeled in the hydrological model, as quantities dissolved in water and transported by flowing water.

Definition

The substance model can be activated and deactivated by adding or removing the appropriate attributes to one or more construction in the project area. If no constructions have attributes configured to interact with the quantities of substances, then no substances are created or transported.

Substances are stored as an exact amount per grid cell, in three different layers: surface, unsaturated and saturated underground.

The substances are generically defined and do not have a set unit or magnitude. Furthermore, at most four different substances can be added and followed.

Creation

Conceptually, substances are added to and removed from the hydrological model by substance emitters and decomposers. The substances created are placed on the surface of the grid cells in which the emitters are present.

Decomposition

Substances can also be decomposed by constructions, if their attributes are configured with a negative value. When substances are present in a cell which contains a substance decomposer, the substances are consequently removed from the hydrological model.

Transportation

When water moves from a cell which also contains substances, the substances are carried along with the water. The substances are expected to be uniformly distributed within the water. In other words, calculations of substance movement is done based on the concentration of that substance in the amount of water that is moved.

Notes

  • It is currently not possible to initialize grid cells with a specific amount for a substance.
  • It is currently not possible to emit substances directly into the unsaturated or saturated underground and neither can it decompose there.
  • It is currently not possible to let substances flow into and out of the sewer.
  • Substances can also be used as a tool to track water flow.

Related formulas

Related models

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