UK EA benchmark 4 (Water Module) - Revision history

Rudolf@tygron.nl at 14:17, 17 October 2025

2025-10-17T14:17:27Z

← Older revision		Revision as of 14:17, 17 October 2025
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	This [[Water Module benchmarks\|benchmark]] performs the UK EA benchmark '''Test 4 – Speed of flood propagation over an extended floodplain''' using the [[Water Module]] of the {{software}}.__NOTOC__		This [[Water Module benchmarks\|benchmark]] performs the UK EA benchmark '''Test 4 – Speed of flood propagation over an extended floodplain''' using the [[Water Module]] of the {{software}}.__NOTOC__

	The objective of this benchmark is to assess the package’s ability to simulate the celerity of propagation of a flood wave and predict transient velocities and depths at the leading edge of the advancing flood front. It is relevant to fluvial and coastal inundation resulting from breached embankments.<ref ~~name="~~Néelz~~"/>~~		The objective of this benchmark is to assess the package’s ability to simulate the celerity of propagation of a flood wave and predict transient velocities and depths at the leading edge of the advancing flood front. It is relevant to fluvial and coastal inundation resulting from breached embankments.{{ref\|Néelz}}

	A copy of this test project is made available to everyone, providing hands-on insights to those interested. The project can be found on the LTS server under the name '''UKEA benchmark 4'''. This is covered in more detail in [[UK EA benchmark 4 (Water Module)#Public test project\|this]] section.		A copy of this test project is made available to everyone, providing hands-on insights to those interested. The project can be found on the LTS server under the name '''UKEA benchmark 4'''. This is covered in more detail in [[UK EA benchmark 4 (Water Module)#Public test project\|this]] section.
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	{{clear}}		{{clear}}
	==Description==		==Description==
	This test is designed to simulate the rate of flood wave propagation over a 1,000 x 2,000 m floodplain following a defense failure (Fig. (a)). The floodplain surface is horizontal, at datum (= 0 m). One inflow boundary condition will be used, simulating the failure of an embankment by breaching or overtopping, with a peak flow of 20 m<sup>3</sup>/s and time base of ~6 h. The boundary condition is applied along a 20-m line in the middle of the western side of the floodplain.<ref ~~name="~~Néelz~~"/>~~		This test is designed to simulate the rate of flood wave propagation over a 1,000 x 2,000 m floodplain following a defense failure (Fig. (a)). The floodplain surface is horizontal, at datum (= 0 m). One inflow boundary condition will be used, simulating the failure of an embankment by breaching or overtopping, with a peak flow of 20 m<sup>3</sup>/s and time base of ~6 h. The boundary condition is applied along a 20-m line in the middle of the western side of the floodplain.{{ref\|Néelz}}

	[[File:topdown_case4_ukbm.png\|thumb\|left\|Figure (a): Modeled domain and the locations of the 20-m line of inflow, 6 output points, and the aimed for 0.1-m and 0.2-m contour lines at t = 1 h (dashed) and t = 3 h (solid), respectively.]]		[[File:topdown_case4_ukbm.png\|thumb\|left\|Figure (a): Modeled domain and the locations of the 20-m line of inflow, 6 output points, and the aimed for 0.1-m and 0.2-m contour lines at t = 1 h (dashed) and t = 3 h (solid), respectively.]]
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	* Location of output points. Filename: ''Test4Output.csv''		* Location of output points. Filename: ''Test4Output.csv''

	The model geometry is as specified in Section 2. No DEM is provided, as the surface elevation is level at datum (= 0 m).<ref ~~name="~~Néelz~~"/>~~		The model geometry is as specified in Section 2. No DEM is provided, as the surface elevation is level at datum (= 0 m).{{ref\|Néelz}}

	==Technical setup==		==Technical setup==
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	\|}		\|}

	~~Note that these~~ output values may deviate slightly from those of the initial testing phase (i.e. not the public test project), since there is a substantial time gap between when the two projects were set up, during which several changes have been made to the engine.		{{article end
			\|notes=
	~~==References=~~=		* These output values may deviate slightly from those of the initial testing phase (i.e. not the public test project), since there is a substantial time gap between when the two projects were set up, during which several changes have been made to the engine of the {{software}}.
			\| references=
	<references>		<references>
	<ref name=~~"Néelz">Néelz, S., & Pender, G. (2013).~~ Benchmarking the latest generation of 2D hydraulic modelling packages. Report: SC120002. Environment Agency, Horison House, Deanery Road, Bristol, BS1 9AH. ISBN: 978-1-84911-306-9~~. Retrieved from:~~ https://www.gov.uk/government/publications/benchmarking-the-latest-generation-of-2d-hydraulic-flood-modelling-packages ~~</ref>~~		{{ref\|Néelz
			\|name=Benchmarking the latest generation of 2D hydraulic modelling packages. Report: SC120002
			\|author=Néelz, S., & Pender, G. (2013)
			\|page=
			\|source=Environment Agency, Horison House, Deanery Road, Bristol, BS1 9AH. ISBN: 978-1-84911-306-9
			\|link=https://www.gov.uk/government/publications/benchmarking-the-latest-generation-of-2d-hydraulic-flood-modelling-packages
			\|lastvisit=
			}}
	</references>		</references>
			}}

	[[Category:Benchmarks]]		[[Category:Benchmarks]]
	{{Water Module buttons}}		{{Water Module buttons}}

Frank@tygron.nl at 15:14, 5 March 2024

2024-03-05T15:14:52Z

← Older revision		Revision as of 15:14, 5 March 2024
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	{{clear}}		{{clear}}
	==Description==		==Description==
	This test is designed to simulate the rate of flood wave propagation over a 1,000 x 2,000 m floodplain following a ~~defence~~ failure (Fig. (a)). The floodplain surface is horizontal, at datum (= 0 m). One inflow boundary condition will be used, simulating the failure of an embankment by breaching or overtopping, with a peak flow of 20 m<sup>3</sup>/s and time base of ~6 h. The boundary condition is applied along a 20-m line in the middle of the western side of the floodplain.<ref name="Néelz"/>		This test is designed to simulate the rate of flood wave propagation over a 1,000 x 2,000 m floodplain following a defense failure (Fig. (a)). The floodplain surface is horizontal, at datum (= 0 m). One inflow boundary condition will be used, simulating the failure of an embankment by breaching or overtopping, with a peak flow of 20 m<sup>3</sup>/s and time base of ~6 h. The boundary condition is applied along a 20-m line in the middle of the western side of the floodplain.<ref name="Néelz"/>

	[[File:topdown_case4_ukbm.png\|thumb\|left\|Figure (a): ~~Modelled~~ domain and the locations of the 20-m line of inflow, 6 output points, and the aimed for 0.1-m and 0.2-m contour lines at t = 1 h (dashed) and t = 3 h (solid), respectively.]]		[[File:topdown_case4_ukbm.png\|thumb\|left\|Figure (a): Modeled domain and the locations of the 20-m line of inflow, 6 output points, and the aimed for 0.1-m and 0.2-m contour lines at t = 1 h (dashed) and t = 3 h (solid), respectively.]]
	[[File:hydrograph_case4_ukbm.png\|thumb\|center\|Figure (b): Hydrograph applied as inflow boundary condition.]]		[[File:hydrograph_case4_ukbm.png\|thumb\|center\|Figure (b): Hydrograph applied as inflow boundary condition.]]
	<br style="clear:both">		<br style="clear:both">
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	==Parameter values==		==Parameter values==
	* Manning’s ''n'': 0.05 (uniform)		* Manning’s ''n'': 0.05 (uniform)
	* Model grid resolution (m): 5 (or ~80,000 nodes in the area ~~modelled~~)		* Model grid resolution (m): 5 (or ~80,000 nodes in the area modeled)
	* Simulated time (h): 5		* Simulated time (h): 5

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	* Specification of hardware used to undertake the simulation: processor type and speed, RAM		* Specification of hardware used to undertake the simulation: processor type and speed, RAM
	* Minimum recommended hardware specification for a simulation of this type		* Minimum recommended hardware specification for a simulation of this type
	* Time increment used, grid resolution (or number of nodes in area ~~modelled~~) and total simulation time to specified time of end		* Time increment used, grid resolution (or number of nodes in area modeled) and total simulation time to specified time of end
	* Raster grids (or TIN) at the model resolution consisting of:		* Raster grids (or TIN) at the model resolution consisting of:
	** Depths and at t = 30 min, 1 h, 2 h, 3 h and 4 h		** Depths and at t = 30 min, 1 h, 2 h, 3 h and 4 h

Frank@tygron.nl at 15:14, 5 March 2024

2024-03-05T15:14:10Z

← Older revision		Revision as of 15:14, 5 March 2024
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	[[File:UK_test_4.gif\|left\|Animation of the test result for case 4, generated by the {{software}}. Map dimensions = 1,000 x 2,000 m. Grid-cell size = 5 m.]]		[[File:UK_test_4.gif\|left\|Animation of the test result for case 4, generated by the {{software}}. Map dimensions = 1,000 x 2,000 m. Grid-cell size = 5 m.]]
	~~<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/>~~		{{clear}}
	==Description==		==Description==
	This test is designed to simulate the rate of flood wave propagation over a 1,000 x 2,000 m floodplain following a defence failure (Fig. (a)). The floodplain surface is horizontal, at datum (= 0 m). One inflow boundary condition will be used, simulating the failure of an embankment by breaching or overtopping, with a peak flow of 20 m<sup>3</sup>/s and time base of ~6 h. The boundary condition is applied along a 20-m line in the middle of the western side of the floodplain.<ref name="Néelz"/>		This test is designed to simulate the rate of flood wave propagation over a 1,000 x 2,000 m floodplain following a defence failure (Fig. (a)). The floodplain surface is horizontal, at datum (= 0 m). One inflow boundary condition will be used, simulating the failure of an embankment by breaching or overtopping, with a peak flow of 20 m<sup>3</sup>/s and time base of ~6 h. The boundary condition is applied along a 20-m line in the middle of the western side of the floodplain.<ref name="Néelz"/>

Frank@tygron.nl at 15:14, 5 March 2024

2024-03-05T15:14:01Z

← Older revision		Revision as of 15:14, 5 March 2024
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	This [[Water Module benchmarks\|benchmark]] performs the UK EA benchmark '''Test 4 – Speed of flood propagation over an extended floodplain''' using the [[Water Module]] of the {{~~sofware~~}}.__NOTOC__		This [[Water Module benchmarks\|benchmark]] performs the UK EA benchmark '''Test 4 – Speed of flood propagation over an extended floodplain''' using the [[Water Module]] of the {{software}}.__NOTOC__

	The objective of this benchmark is to assess the package’s ability to simulate the celerity of propagation of a flood wave and predict transient velocities and depths at the leading edge of the advancing flood front. It is relevant to fluvial and coastal inundation resulting from breached embankments.<ref name="Néelz"/>		The objective of this benchmark is to assess the package’s ability to simulate the celerity of propagation of a flood wave and predict transient velocities and depths at the leading edge of the advancing flood front. It is relevant to fluvial and coastal inundation resulting from breached embankments.<ref name="Néelz"/>

Frank@tygron.nl at 15:13, 5 March 2024

2024-03-05T15:13:51Z

← Older revision		Revision as of 15:13, 5 March 2024
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	This ~~page reports on the performance of the {{software}}'s~~ [[Water Module]] ~~by means of~~ the UK EA benchmark '''Test 4 – Speed of flood propagation over an extended floodplain'''.__NOTOC__		This [[Water Module benchmarks\|benchmark]] performs the UK EA benchmark '''Test 4 – Speed of flood propagation over an extended floodplain''' using the [[Water Module]] of the {{sofware}}.__NOTOC__

	The objective of this ~~test~~ is to assess the package’s ability to simulate the celerity of propagation of a flood wave and predict transient velocities and depths at the leading edge of the advancing flood front. It is relevant to fluvial and coastal inundation resulting from breached embankments.<ref name="Néelz"/>		The objective of this benchmark is to assess the package’s ability to simulate the celerity of propagation of a flood wave and predict transient velocities and depths at the leading edge of the advancing flood front. It is relevant to fluvial and coastal inundation resulting from breached embankments.<ref name="Néelz"/>

	A copy of this test project is made available to everyone, providing hands-on insights to those interested. The project can be found on the LTS server under the name '''UKEA benchmark 4'''. This is covered in more detail in [[UK EA benchmark 4 (Water Module)#Public test project\|this]] section.		A copy of this test project is made available to everyone, providing hands-on insights to those interested. The project can be found on the LTS server under the name '''UKEA benchmark 4'''. This is covered in more detail in [[UK EA benchmark 4 (Water Module)#Public test project\|this]] section.

Rudolf@tygron.nl at 07:55, 3 March 2022

2022-03-03T07:55:48Z

← Older revision		Revision as of 07:55, 3 March 2022
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	==Public test project==		==Public test project==
	A copy of this test project is made available to everyone, providing hands-on insights to those interested. The project can be found on the LTS server under the name '''UKEA benchmark 4'''. In this project the discussed benchmark test is reproduced, based on a map size of 1,010 m x 2,010 m to compensate for the 5-m border cells. These special map dimensions are generally not selectable in the [[Wizard]] and require configuration through the [[API]].		A copy of this test project is made available to everyone, providing hands-on insights to those interested. The project can be found on the LTS server under the name '''UKEA benchmark 4'''. In this project the discussed benchmark test is reproduced, based on a map size of 1,010 m x 2,010 m to compensate for the 5-m border cells. These special map dimensions are generally not selectable in the [[New Project Wizard]] and require configuration through the [[API]].

	===Measurement points===		===Measurement points===

Rudolf@tygron.nl at 12:48, 28 April 2021

2021-04-28T12:48:08Z

← Older revision		Revision as of 12:48, 28 April 2021
Line 147:		Line 147:
	==Public test project==		==Public test project==
	A copy of this test project is made available to everyone, providing hands-on insights to those interested. The project can be found on the LTS server under the name '''UKEA benchmark 4'''. In this project the discussed benchmark test is reproduced, based on a map size of 1,010 m x 2,010 m to compensate for the 5-m border cells. These special map dimensions are generally not selectable in the [[Wizard]] and require configuration through the [[API]].		A copy of this test project is made available to everyone, providing hands-on insights to those interested. The project can be found on the LTS server under the name '''UKEA benchmark 4'''. In this project the discussed benchmark test is reproduced, based on a map size of 1,010 m x 2,010 m to compensate for the 5-m border cells. These special map dimensions are generally not selectable in the [[Wizard]] and require configuration through the [[API]].

	~~An explanation of how to run the simulation can be found [[Results (Water Overlay)#Timeframes\|here]].~~

	===Measurement points===		===Measurement points===

Jorn@tygron.com: /* Settings & output */

2019-07-22T08:48:08Z

Settings & output

← Older revision		Revision as of 08:48, 22 July 2019
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	\|Total volume		\|Total volume
	\|m<sup>3</sup>		\|m<sup>3</sup>
	\|~~281~~,~~951~~		\|282,057
	\|-		\|-
	\|Water balance error		\|Water balance error
	\|m<sup>3</sup>		\|m<sup>3</sup>
	\| -94 (0%)		\| -159 (0%)
	\|-		\|-
	\|Single cells		\|Single cells
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	\|Calc. steps		\|Calc. steps
	\|		\|
	\|47,~~387~~		\|49,008
	\|-		\|-
	\|Calc. time		\|Calc. time

Jorn@tygron.com: /* Measurement points */

2019-07-22T08:42:26Z

Measurement points

← Older revision		Revision as of 08:42, 22 July 2019
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	\|}		\|}

	Note that the coordinate system in this project differs from the one used during the actual benchmark testing as shown in Fig. (a). For the above listed points the center (0,0) is located at the top-left corner instead of the bottom-left, hence will the bottom-right corner have coordinates (1,~~000~~;-2,~~000~~).		Note that the coordinate system in this project differs from the one used during the actual benchmark testing as shown in Fig. (a). For the above listed points the center (0,0) is located at the top-left corner instead of the bottom-left, hence will the bottom-right corner have coordinates (1,010;-2,010).

	===Water level relative to datum===		===Water level relative to datum===

Jorn@tygron.com: /* Measurement points */

2019-07-22T08:41:47Z

Measurement points

← Older revision		Revision as of 08:41, 22 July 2019
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	\|-		\|-
	\|1		\|1
	\|50		\|55
	\| -1,~~000~~		\| -1,005
	\|-		\|-
	\|2		\|2
	\|~~100~~		\|105
	\| -1,~~000~~		\| -1,005
	\|-		\|-
	\|3		\|3
	\|~~200~~		\|205
	\| -1,~~000~~		\| -1,005
	\|-		\|-
	\|4		\|4
	\|~~300~~		\|305
	\| -1,~~000~~		\| -1,005
	\|-		\|-
	\|5		\|5
	\|~~400~~		\|405
	\| -1,~~000~~		\| -1,005
	\|-		\|-
	\|6		\|6
	\|~~300~~		\|305
	\| -~~700~~		\| -705
	\|}		\|}