Dictionary:Darcy’s law

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Warning: Display title "Dictionary:Darcy’s law" overrides earlier display title "Dictionary:Darcy’s law".

A relationship for 1D fluid flow rate q:

,

where k=permeability, A=cross-sectional area, =viscosity, and =pressure differential across the thickness . For radial flow into a cylindrical borehole,

,

where r=radial distance and h=height of the cylinder.