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Darcy (unit)

The darcy (or darcy unit) and millidarcy (md or mD) are units of permeability, named after Henry Darcy. They are not SI units, but they are widely used in petroleum engineering and geology. The unit has also been used in biophysics and biomechanics, where the flow of fluids such as blood through capillary beds and cerebrospinal fluid through the brain…

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Definition

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Conversions

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Origin

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Overview

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Derivation
cP⋅cm2/(s⋅atm)
Named after
Henry Darcy
SI
9.869233×10−13 m2
Symbol
d
Unit of
Permeability

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Definition

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Darcy (unit)

Nodes26
Edges25
Triples7
Avg. degree1.92
Density0.076923
Components1

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Darcy (unit)

Top relations

Derivation · 1
Darcy (unit) → cP⋅cm2/(s⋅atm)
Named after · 1
Darcy (unit) → Henry Darcy
SI · 1
Darcy (unit) → 9.869233×10−13 m2
Symbol · 1
Darcy (unit) → d
Unit of · 1
Darcy (unit) → Permeability

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Important terminology

permeability darcy unit units flow water si named henry cp md petroleum used fluids geology rock millidarcy also fluid atm

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Darcy (unit)DerivationcP⋅cm2/(s⋅atm)1.00infobox
Darcy (unit)Named afterHenry Darcy1.00infobox
Darcy (unit)SI9.869233×10−13 m21.00infobox
Darcy (unit)Symbold1.00infobox
Darcy (unit)Unit ofPermeability1.00infobox
blood through capillary bedsinstance ofwhere the flow of fluids0.80text
cerebrospinal fluid through the brain interstitial space is being examinedinstance ofwhere the flow of fluids0.80text

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    Min side: 3
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