Aquifer (Water Overlay)

The aquifer is an additional definition for the underground, allowing for underground horizontal flow different from the underground 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 underground terrain is used.
• The aquifer functionality is also used to model drainages.

See also

• Underground model (Water Overlay)
• Underground 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 width output

Related

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