Water Module theory: Difference between revisions
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* [[Breach model (Water Overlay)|Breach model]] | * [[Breach model (Water Overlay)|Breach model]] | ||
===Formulas=== | |||
The precise calculations which govern the water overlay's simulation are many and varied, and based as much as possible on available expert knowledge. | The precise calculations which govern the water overlay's simulation are many and varied, and based as much as possible on available expert knowledge. | ||
Model related formula's | ====Model related formula's==== | ||
* [[Surface water level formula (Water Overlay)]] | * [[Surface water level formula (Water Overlay)]] | ||
* [[Surface flow formula (Water Overlay)]] | * [[Surface flow formula (Water Overlay)]] | ||
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* [[Ground bottom flow formula (Water Overlay)]] | * [[Ground bottom flow formula (Water Overlay)]] | ||
Hydraulic structure related formula's | ====Hydraulic structure related formula's==== | ||
* {{linkappend |postd= formula |post= formula (Water Overlay) | Culvert }} | * {{linkappend |postd= formula |post= formula (Water Overlay) | Culvert }} | ||
* {{linkappend |postd= formula |post= formula (Water Overlay) | Weir }} | * {{linkappend |postd= formula |post= formula (Water Overlay) | Weir }} | ||
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* {{linkappend |postd= formula |post= formula (Water Overlay) | Drainage }} | * {{linkappend |postd= formula |post= formula (Water Overlay) | Drainage }} | ||
Module related formula's | ====Module related formula's==== | ||
* [[Timestep formula (Water Overlay) | * [[Surface level formula (Water Overlay)]] | ||
* [[Ground level formula (Water Overlay)]] | |||
* [[Timestep formula (Water Overlay)]] | |||
* [[Season formula (Water Overlay)]] | |||
====Calculation related information==== | ====Calculation related information==== | ||
Revision as of 14:30, 28 February 2024
- Find cleaner way to show overview of pictures, rather than screen-filling images with small text.
- Leverage Table of Contents for list of content
The following topics are described on this page:
- Introduction to the Water Module Theory
- Calculation modules Calculation Models
- Theories and formulas
- Computational structure and sequences
- Water Model Limits (some basic rules)
Introduction to the Water Module Theory
The Water Module in the Tygron Platform is an implementation of a 2D grid based shallow water model, based on the 2D Saint Venant equations (see Surface Model). The module is further enhanced with infiltration, evaporation, groundwater flow and hydraulic structures.
To perform the calculations, the project area is first rasterized into a large grid of cells. Each cell has a specific quantity of water and specific hydrological parameters based on the data in the project. The total time which should be simulated is divided into discrete timesteps. Per timestep, each cell communicates with its adjacent cells to exchange water, based on it's water level, surface height, current flow direction and other factors. Accuracy and reliability is obtained by dividing the project area and simulation time into sufficiently small cells and steps, at the cost of more computation time. Take a look at the testbed water module project, available in all domains, to see some of the components of the Water Module in a project.
The Water Module enables users to implement a water model for their project which is accurate and delivers fast results. To ensure accuracy, the Water Module is repeatedly tested against multiple (internationally) acknowledged hydrological benchmarks and tests. Fast results are achieved by executing the water calculations on High performance GPU servers.
Supported layers in rain, flooding and ground water calculations.
Supported flows between the layers in rain, flooding and ground water calculations.
Calculation Models
The Water Module performs a large number of calculations to form a complete hydrological simulation. Depending on the desired viewpoint, both the overarching concepts as well as the implemented formulas can be reviewed for detailed insight into how the water overlay works.
Multiple models are implemented which in conjunction form the water model in its entirety.
- Surface model
- Ground model
- Elevation model
- Rain model
- Infiltration model
- Evaporation model
- Storage model
- Sewer model
- Tracer flow model
- Border model
- Breach model
Formulas
The precise calculations which govern the water overlay's simulation are many and varied, and based as much as possible on available expert knowledge.
- Surface water level formula (Water Overlay)
- Surface flow formula (Water Overlay)
- Surface infiltration formula (Water Overlay)
- Surface evaporation formula (Water Overlay)
- Groundwater level formula (Water Overlay)
- Ground flow formula (Water Overlay)
- Ground infiltration formula (Water Overlay)
- Ground evaporation formula (Water Overlay)
- Ground bottom flow formula (Water Overlay)
- Culvert formula
- Weir formula
- Breach growth formula
- Breach flow formula
- Pump formula
- Sewer Overflow formula
- Inlet formula
- Drainage formula
- Surface level formula (Water Overlay)
- Ground level formula (Water Overlay)
- Timestep formula (Water Overlay)
- Season formula (Water Overlay)
- Models
- Surface • Ground • Rain • Evaporation • Infiltration • Elevation • Breach • Sewer • Storage • Tracer flow • Border • Order
- Model formulas
- Timestep • Season • Surface water level • Groundwater level
- Flow formulas
- Surface flow • Surface infiltration • Ground flow • Ground infiltration • Surface evaporation • Ground evaporation • Ground bottom flow
- Hydraulic structure formulas
- Culvert • Weir • Breach growth • Breach flow • Pump • Sewer Overflow • Inlet • Drainage
- Related