Encyclopedia of Engineering Geology

2018 Edition
| Editors: Peter T. Bobrowsky, Brian Marker

Darcy’s Law

  • Renato MacciottaEmail author
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-73568-9_79


Darcy’s law defines the rate of water flow through porous media, assuming a laminar flow. It states that the rate of flow per unit, cross-sectional area is equal to the product of the hydraulic conductivity of the material and the hydraulic gradient.


Henry Darcy (1803–1858), a French waterworks in Dijon, revealed a proportionality between the flow rate in clean sand and the applied hydraulic gradient. In its simplest form:
$$ q= vA= kiA=k\frac{\Delta h}{L}A $$
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  1. Nield DA, Bejan A (2006) Convection in porous media, 3rd edn. Springer Science+Business Media Inc, New YorkGoogle Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Engineering Safety and Risk Management, Department Civil and Environmental EngineeringUniversity of AlbertaEdmontonCanada