Before revision: Darcy's law, as refined by Morris Muskat, in the absence of gravitational forces and in a homogeneously permeable medium, is given by a simple proportionality relationship between the instantaneous flux (units of : m3/s, units of : m2, units of : m/s) through a porous medium , .
After revision: Darcy's law, as refined by Morris Muskat, in the absence of gravitational forces and in a homogeneously permeable medium, is given by a simple proportionality relationship between the volumetric flow rate , and the pressure drop through a porous medium In the integral form, .