Aquifer (Water Overlay)

The aquifer is an additional definition for the ground, allowing for ground horizontal flow different from the ground terrain's GROUND_INFILTRATION_MD.

Icon	Key	Unit	Range	Description	Default value
	AQUIFER_KD	m²/day		The hydraulic conductivity of the aquifer, which dictates the speed at which water can flow horizontally through the underground.	n/a
	AQUIFER_DATUM	m + datum		The datum height at which the aquifer layer is situated.	n/a

Notes

• The aquifer only functions if its hydraulic conductivity is greater than 0. If it is 0 or less the aquifer is disregarded, and the GROUND_INFILTRATION_MD of the ground terrain is used.
• The aquifer functionality is also used to model drainages.
• *Overlapping Aquifers are not allowed. Should in any location two or more Aquifers overlap, the values of one of them is used, and the values of the others are ignored.

See also

• Ground model (Water Overlay)
• Ground flow formula (Water Overlay)#Aquifer formula

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Water Module

Water Module

Tutorials

Overview

Theory

Benchmarks

Group

Hydrological features

Water area

Water level • Water relative

Sewer area

Sewer storage • Sewer pump speed

Inundation area

Inundation level

Aquifer

Aquifer kd • Aquifer datum

Breach

Breach height • Breach width • Breach angle • Breach coefficient • Breach speed • Breach input area • Breach level area • External surface level • External water level • External area

Rain area

Rain m

Limitation area

Limit area

Output

Object flow output • Object height output • Object datum output a • Object datum output b • Object water area output • Object width output

Related

Building attributes • Hydraulic structures •  Terrain attributes • Model attributes • Prequels • Results • Simulation data