Breach coefficient (Water Overlay)

Icon	Key	Unit	Range	Description	Default value
	BREACH_COEFFICIENT	coefficient	0 to 3.4028235E38	The flow coefficient related to the shape of the breach.	1.37

Shapes

Icon	Shape	Coefficient
	Flat top	0,865
	Flat top, rounded corners	0,91
	Sharp top	1,1
	Gentle slope, one-sided	1,3
	Gentle slope, two-sided	1,37

How-to's

• How to create a custom breach formula

See also

• Breach flow formula (Water Overlay)

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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 • Results • Simulation data