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In fluid dynamics, the Buckley–Leverett equation is a transport equation used to model two-phase flow in porous media. The Buckley–Leverett equation or the Buckley–Leverett displacement can be interpreted as a way of incorporating the microscopic effects to due capillary pressure in two-phase flow into Darcy's law.
Additional recommended knowledge
f is the fractional flow rate, Q is the total flow, φ is porosity and A is area of the cross-section in the sample volume.
Assumptions for validity
The Buckley–Leverett equation is derived for a 1D sample given
The solution of the Buckley–Leverett equation has the form S(x,t) = S(x − U(S)t) which means that U(S) is the front velocity of the fluids at saturation S.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Buckley–Leverett_equation". A list of authors is available in Wikipedia.|