Darcy's law

Description

Describes the flow of a fluid through a porous medium, for slow, viscous flow. The total discharge, is equal to the product of the intrinsic permeability of the medium, the cross-sectional area to flow, and the total pressure drop, all divided by the viscosity, and the length over which the pressure drop is taking place.

Related formulas

Variables

QTotal discharge (m3/s)
kCoefficient of permeability of the soil (m2)
AThe cross-sectional area to flow (m2)
PbInitial preassure (Pa)
PaFinal preassure (Pa)
μViscosity (Pa*s)
LThe length over which the pressure drop is taking place (m)