Darcy's law

Brief

Darcy's law is the fundamental law of fluid motion in porous media published by Henry Darcy in 1856 ^[1].

q = -\frac{kA}{\mu} \frac{dP}{dL}

m

= mass, lb_m

M

= molecular weight, lb_m/lb_mol

n

= number of moles, lb_mol

P

= Pressure, psia

R

= universal gas constant, 10.7316 psia ft³/ lb_mol/ °R

T

= temperature, °R

V

= volume, ft³

z

= gas compressibility factor, dimensionless

↑ Darcy, Henry (1856). "Les Fontaines Publiques de la Ville de Dijon". Paris: Victor Dalmont.