Mode (Water Overlay) - Revision history

Frank@tygron.nl at 09:59, 11 February 2022

2022-02-11T09:59:04Z

← Older revision		Revision as of 09:59, 11 February 2022
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	===Timesteps===		===Timesteps===
	~~The mode has the following effects on timesteps.~~ The cell size is defined by dx. The timesteps are in seconds.		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 )		* Horizontal groundwater timestep = min ( 5 * dx * modeFactor , 120 )
	* Vertical groundwater timestep is based on whether shallow water simulation is selected.		* Vertical groundwater timestep is based on whether shallow water simulation is selected.

Frank@tygron.nl at 09:58, 11 February 2022

2022-02-11T09:58:43Z

← Older revision		Revision as of 09:58, 11 February 2022
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	===Timesteps===		===Timesteps===
	The mode has the following effects on timesteps:		The mode has the following effects on timesteps. The cell size is defined by dx. The timesteps are in seconds.
	The cell size is defined by dx. The timesteps are in seconds.

	* Horizontal groundwater timestep = min ( 5 * dx * modeFactor , 120 )		* Horizontal groundwater timestep = min ( 5 * dx * modeFactor , 120 )

Frank@tygron.nl at 09:58, 11 February 2022

2022-02-11T09:58:31Z

← Older revision		Revision as of 09:58, 11 February 2022
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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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	* Accuracy: Highest frequencies, greatest detail in water movements. Mode factor 1.		* Accuracy: Highest frequencies, greatest detail in water movements. Mode factor 1.

			===Timesteps===
	The mode has the following effects on timesteps:		The mode has the following effects on timesteps:
			The cell size is defined by dx. The timesteps are in seconds.

	* Horizontal groundwater timestep ~~(seconds)~~ = min ( 5 * dx * modeFactor , 120 )		* Horizontal groundwater timestep = min ( 5 * dx * modeFactor , 120 )
	* Vertical groundwater timestep ~~(seconds)~~ is based on whether shallow water simulation is selected.		* Vertical groundwater timestep is based on whether shallow water simulation is selected.
	** Shallow water active: 2 * modeFactor.		** Shallow water active: 2 * modeFactor.
	** Shallow water not active: Horizontal groundwater timestep		** Shallow water not active: Horizontal groundwater timestep

Frank@tygron.nl at 09:54, 11 February 2022

2022-02-11T09:54:22Z

← Older revision		Revision as of 09:54, 11 February 2022
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	The mode has the following effects on timesteps:		The mode has the following effects on timesteps:

	* ~~Groundwater~~ timestep (seconds) = min ( 5 * dx * modeFactor , 120 )		* Horizontal groundwater timestep (seconds) = min ( 5 * dx * modeFactor , 120 )
	* ~~Surface water~~ timestep (seconds) is based on whether shallow water simulation is selected.		* Vertical groundwater timestep (seconds) is based on whether shallow water simulation is selected.
	**		** Shallow water active: 2 * modeFactor.
			** Shallow water not active: Horizontal groundwater timestep
	~~{\| {{STDT\|overlay sortable}}~~		* Structures and features:
	\|-		** Average areas mode: 0.5 * Vertical groundwater timestep
	~~! !!~~ Average ~~!! Speed !! Speed !! Description~~		** No average areas: 1.0 * Vertical groundwater timestep
	\|-
	~~\|\|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}}

Frank@tygron.nl at 09:46, 11 February 2022

2022-02-11T09:46:06Z

← Older revision		Revision as of 09:46, 11 February 2022
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	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.		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_(Water_Overlay)\|surface water]] mode is set to the '''Avg Waterway''' or '''Avg Terrain'''.		Surface water simulation time steps are only depended on this mode when [[Surface_water_(Water_Overlay)\|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_(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.

Frank@tygron.nl at 09:45, 11 February 2022

2022-02-11T09:45:40Z

← Older revision		Revision as of 09:45, 11 February 2022
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	{{stub}}		{{stub}}

	The mode of the [[Water Overlay]] affects the ~~accuracy~~ for ~~some parts~~ of the simulation. ~~The setting~~ is ~~available~~ to ~~reduce~~ the frequency of ~~certain calculations, providing faster simulations~~.		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_(Water_Overlay)\|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_(Water_Overlay)\|surface water]] is set to the '''Shallow''' or '''Hybrid''' mode.

	There are three modes available:		There are three modes available:

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

	The mode has the following effects:		The mode has the following effects on timesteps:

			* Groundwater timestep (seconds) = min ( 5 * dx * modeFactor , 120 )
			* Surface water timestep (seconds) is based on whether shallow water simulation is selected.
			**

	{\| {{STDT\|overlay sortable}}		{\| {{STDT\|overlay sortable}}

Rudolf@tygron.nl at 12:33, 11 May 2021

2021-05-11T12:33:41Z

← Older revision		Revision as of 12:33, 11 May 2021
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	~~This configuration option is no longer used.~~		{{stub}}
	~~<!--~~
	~~===Timesteps===~~
	~~This settings influence the timesteps for rain, surfaceflow and groundwater in the calculation model.~~
	~~All settings result in stable solution, however small fluctuations can occur in the hydro-graphs.~~
	~~By default Speed is selected, only change this when your use-case demands it.~~

	* Speed: ~~Larger timesteps (default).~~		The mode of the [[Water Overlay]] affects the accuracy for some parts of the simulation. The setting is available to reduce the frequency of certain calculations, providing faster simulations.

			There are three modes available:

			* Speed: Lowest frequencies, fastest calculations
	* Normal: Average mode between Speed an Accuracy.		* Normal: Average mode between Speed an Accuracy.
	* Accuracy: ~~Smallest timesteps~~, ~~smoothest hydro-graphs.~~		* Accuracy: Highest frequencies, greatest detail in water movements.

	~~===Low Impulse Mode===~~
	By default the model uses full impulse to simulate waterflow. However when using long term average calculations (e.g. groundwater year round) the (short term) impulse has a very limited effect on the outcome. In this case select the Low Impulse Mode option which reduces gravity in ~~your simulation and thus the impulse. This means that peak velocity in heavy rain-showers or floodings are not accurate, but the average waterflow through the system remains the same~~.

	The ~~low impulse~~ mode ~~will reduce~~ the ~~used [[gravity (Water Overlay)\|gravitational constant]] to 0,5.~~		The mode has the following effects:

	~~Warning: Do not use this option with floodings or heavy rain~~-~~shower stress calculations.~~		{\| {{STDT\|overlay sortable}}
	-->		\|-
			! !! 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}}

Rudolf@tygron.nl: Rudolf@tygron.nl moved page Calculation preference formula (Water Overlay) to Mode (Water Overlay) over redirect: Not a formula, but does affect calculation

2021-05-11T12:15:07Z

Rudolf@tygron.nl moved page Calculation preference formula (Water Overlay) to Mode (Water Overlay) over redirect: Not a formula, but does affect calculation

← Older revision	Revision as of 12:15, 11 May 2021
(No difference)

Rudolf@tygron.nl at 12:06, 14 August 2020

2020-08-14T12:06:56Z

New page

This configuration option is no longer used.


{{WaterOverlay formula nav}}