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Darcy friction factor

characteristic number for the pressure drop in a pipe due to friction in a laminar or turbulent flow
Class type of: characteristic number Q1253446

Facts

8 properties
Subclass of
characteristic number[1]
Defining formula
f_{\mathrm{D}} = \frac{2 \Delta p}{\rho v^2} \frac{d}{l}[3]
Described by source
ISO 80000-11:2019 Quantities and units — Part 11: Characteristic numbers[2]
ISQ dimension
1[4]
In defining formula
f_{\mathrm{D}}, \Delta p, \rho, v, d, l[6][7][8][9][10][11]
Maintained by WikiProject
WikiProject Mathematics[5]
Quantity symbol (LaTeX)
f_{\mathrm{D}}[12]
Recommended unit of measurement
1[13]
🏷️ Also known as
en Darcy friction factor en Moody friction factor cs Součinitel ztráty třením de Rohrreibungszahl de Darcy-Reibungsfaktor de Darcy-Reibungszahl de Moody-Reibungsfaktor es coeficiente de resistencia es factor de fricción es factor de fricción de Darcy es factor de fricción de Moody fa ضریب اصطکاک دارسی fr coefficient de frottement de Moody fr coefficient de frottement de Darcy fr coefficient de perte de charge de Darcy fr coefficient de perte de charge de Moody he משוואת קולברוק hu Darcy súrlódási együttható hu Moody súrlódási együttható ja 摩擦損失係数
🔖 Identifiers · 3
Freebase ID
/m/03cgl57
Microsoft Academic ID (discontinued)
121127069
Wolfram Language quantity ID
DarcyFrictionFactor

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🔗 Connections
Maintained by WikiProject 1
WikiProject Mathematics
Subclass of 1
characteristic number
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References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [1] ↑ . wikidata.org.
  2. [2] ↑ . wikidata.org.
  3. [3] ↑ . ISO 80000-11:2019 Quantities and units — Part 11: Characteristic numbers. wikidata.org.
  4. [4] ↑ . wikidata.org.
  5. [5] ↑ . wikidata.org.
  6. [6] ↑ . wikidata.org.
  7. [7] ↑ . wikidata.org.
  8. [8] ↑ . wikidata.org.
  9. [9] ↑ . wikidata.org.
  10. [10] ↑ . wikidata.org.
  11. [11] ↑ . wikidata.org.
  12. [12] ↑ . ISO 80000-11:2019 Quantities and units — Part 11: Characteristic numbers. wikidata.org.
  13. [13] ↑ . ISO 80000-11:2019 Quantities and units — Part 11: Characteristic numbers. wikidata.org.

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APA 4ort.xyz Knowledge Graph. (2026). Darcy friction factor. Retrieved November 9, 2026, from https://4ort.xyz/entity/darcy-friction-factor
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