Radial well aquifer benchmark (Water Module) - Revision history

Rudolf@tygron.nl at 11:26, 17 October 2025

2025-10-17T11:26:17Z

← Older revision		Revision as of 11:26, 17 October 2025
Line 2:		Line 2:

	[[File:drainage_freatic_benchmark.gif]]		[[File:drainage_freatic_benchmark.gif]]
	~~<br style="~~clear~~:both;">~~		{{clear}}

	===Formulas===		===Formulas===
	Stationary lowering of the ground water table in a closed water transmissive layer can be described by the following formula <ref ~~name="~~verruijt70~~"/>~~		Stationary lowering of the ground water table in a closed water transmissive layer can be described by the following formula{{ref\|verruijt70}}

	<math>\phi(r) - \phi_0 = \frac {Q_0}{2\pi\cdot kD} \ln{\left ( \frac{r}{R} \right )}</math>		<math>\phi(r) - \phi_0 = \frac {Q_0}{2\pi\cdot kD} \ln{\left ( \frac{r}{R} \right )}</math>
Line 133:		Line 133:
	[[File:2m_4m3_88kd.png]]		[[File:2m_4m3_88kd.png]]

	~~===References==~~=		{{article end
			\|references=
	<references>		<references>
	<ref name=~~"verruijt70>Verruijt, A. (1970).~~ Theory of Groundwater Flow. Macmillan, London.~~</ref>~~		{{ref\|verruijt70
			\|name=Theory of Groundwater Flow. Macmillan, London
			\|author=Verruijt, A. (1970)
			\|page=
			\|source=
			\|link=
			\|lastvisit=
			}}
	</references>		</references>
			}}

	{{Water Module buttons}}		{{Water Module buttons}}

2024-03-05T14:47:34Z

← Older revision		Revision as of 14:47, 5 March 2024
Line 1:		Line 1:
	This ~~testcase~~ demonstrates a situation where a well is extracting ground water. A characteristic ground water level curve will form over time.		This [[Water_Module_benchmarks\|benchmark]] demonstrates a situation where a well is extracting ground water. A characteristic ground water level curve will form over time.

	[[File:drainage_freatic_benchmark.gif]]		[[File:drainage_freatic_benchmark.gif]]

2024-03-05T14:46:18Z

← Older revision		Revision as of 14:46, 5 March 2024
Line 43:		Line 43:

	===Test results===		===Test results===
	Important in all these tests is the chosen R, which is the distance to the well that is considered a stable water level. Additionally, the measurements are done relative to the [[Bottom prequel (Water Overlay)\|bottom boundary]], which is situated 10 meters below the surface.		Important in all these tests is the chosen R, which is the distance to the well that is considered a stable water level. Additionally, the measurements are done relative to the [[Bottom distance prequel (Water Overlay)\|bottom boundary]], which is situated 10 meters below the surface.

	====Test case 1====		====Test case 1====

2024-03-05T14:45:57Z

← Older revision		Revision as of 14:45, 5 March 2024
Line 43:		Line 43:

	===Test results===		===Test results===
	Important in all these tests is the chosen R, which is the distance to the well that is considered a stable water level. Additionally, the measurements are done relative to the ~~impenetrable soil~~, which is situated 10 meters below the surface.		Important in all these tests is the chosen R, which is the distance to the well that is considered a stable water level. Additionally, the measurements are done relative to the [[Bottom prequel (Water Overlay)\|bottom boundary]], which is situated 10 meters below the surface.

	====Test case 1====		====Test case 1====

2021-01-13T14:44:49Z

Test results

← Older revision		Revision as of 14:44, 13 January 2021
Line 43:		Line 43:

	===Test results===		===Test results===
	Important in all these tests in the chosen R, which is the distance to the well that is considered a stable water level. Additionally, the measurements are done relative to the impenetrable soil, which is situated 10 meters below the surface.		Important in all these tests is the chosen R, which is the distance to the well that is considered a stable water level. Additionally, the measurements are done relative to the impenetrable soil, which is situated 10 meters below the surface.

	====Test case 1====		====Test case 1====

2020-12-17T16:53:18Z

Formulas

← Older revision		Revision as of 16:53, 17 December 2020
Line 10:		Line 10:

	where:		where:
	: <math>~~phi(0)~~</math>: stable water level at the considered stable water table edge		: <math>phi_0</math>: stable water level at the considered stable water table edge
	: <math>phi(r)</math>: water level between the considered stable water table edge and the well		: <math>phi(r)</math>: water level between the considered stable water table edge and the well
	~~: <math>phi(rw)</math>: water level in the well~~
	: <math>kD</math>: transmissivity of the aquifer in m² / day		: <math>kD</math>: transmissivity of the aquifer in m² / day
	: <math>r</math>: distance to the well		: <math>r</math>: distance to the well

2020-12-17T16:40:48Z

← Older revision	Revision as of 16:40, 17 December 2020
(No difference)

2020-12-17T08:36:46Z

← Older revision		Revision as of 08:36, 17 December 2020
Line 1:		Line 1:
	This testcase demonstrates a situation where a well is ~~pumping up~~ ground water. A characteristic ground water level curve will form over time.		This testcase demonstrates a situation where a well is extracting ground water. A characteristic ground water level curve will form over time.

	[[File:drainage_freatic_benchmark.gif]]		[[File:drainage_freatic_benchmark.gif]]

2020-12-17T08:36:14Z

← Older revision	Revision as of 08:36, 17 December 2020
(No difference)

2020-12-16T16:20:17Z

Test case 1

@@ Line 53: / Line 53: @@
 :Simulation days <math>n</math>: 64 days;
 [[File:5m_50m3_88kd.png]]
 ===References===