Darcy's Law Calculator

This Calctown Calculator calculates the instantaneous discharge rate through a porous medium at constant elevation using Darcy's law.

κ(intrinsic permeability)

m²

A(cross-sectional area)

m²

μ(viscosity)

Pa.s

P_b(pressure at b)

P_a(pressure at a)

L(path length)

Q(discharge rate)

m³/s

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where

Q = discharge rate

κ = intrinsic permeability of medium

μ = viscosity

P = pressure

L = path length

A = cross-sectional area