IWNET12
IWNET12
Steady-State Two-Phase Flow in Porous Media: Open Questions
Alex Hansen1
1 Department of Physics, Norwegian University of Science and Technology
Abstract
Whereas instabilities during injection of a uid into a porous medium already saturated with another uid
immiscible with respect to the rst, have been extensively studied, the simultaneous ow of two immisicble
uids under steady-state conditions have been received surprisingly little attention.
We will in this talk present a number of phenomena and open questions - and some attempts at answering them.
Among the questions we pose is what happens to the interface between two immiscible uids owing in parallel;
is the Darcy equation (the equivalent of Ohm's law) valid when capillary and viscous forces compete  and
what should replace it; can one use non-equillibrium thermodynamics to describe the macroscopic parameters
characterizing the ow?
E-mail: Alex.Hansen@ntnu.no

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