If the term [[tau].sup.2.sub.h] which appears in the Kozeny-Carmen equation
is labelled as the hydraulic tortuosity, then (25) and (27) should be squared.
(1999) noted that inclusion of the pore size distribution index into the Kozeny-Carmen equation
improved the [K.sub.s] estimation over using only effective porosity.
This rate can be described by Darcy's Law, using the Kozeny-Carmen equation
to calculate the permeation constant.