This relation may fail for systems in advective transport due to complications associated with clastic Brinkman layers which induce a type of viscosity-driven diffusion, and for Karst systems, the Ergun and Forchheimer Expressions yield a better fit than this relation.
The BEMER Model based on this expression adds climactic parameters to it to account for geographically specific systems. This relation may fail for systems in advective transport due to complications associated with clastic Brinkman layers which induce a type of viscosity-driven diffusion, and for Karst systems, the Ergun and Forchheimer Expressions yield a better fit than this relation. However, the introduction of a continuity factor allows it to be applicable to Richards transport in saturated soils, and it predicts high flux per unit time for well-sorted gravels and low flux for clays. FTP, name this equation that states that the product of elevation difference and cross sectional area divided by the distance is equal to the groundwater flow rate, a law used to model aquifers in hydrogeology.
The BEMER Model based on this expression adds climactic parameters to it to account for geographically specific systems.
Darcy's Law