Authors: Buzzi, Fulvia
Lenzinger, Michael
Schweizer, Ben
Title: Interface conditions for degenerate two-phase flow equations in one space dimension
Language (ISO): en
Abstract: We study the two-phase flow equations describing, e.g., the motion of oil and water in a porous material, and are concerned with interior interfaces where two different porous media are in contact. At such an interface, the entry pressure relation together with the degeneracy of the system leads to an interesting effect known as oil-trapping. Restricting to the one-dimensional case we show an existence result with the help of appropriate regularizations and a time discretization. The crucial tool is a compactness lemma: The control of the time derivative in a space of measures is used to conclude the strong convergence of a sequence.
Subject Headings: two-phase flow
porous media
degenerate diffusion
transmission condition
Issue Date: 2009-01-20T14:18:42Z
Citation: Buzzi, F.; Lenzinger, M.; Schweizer, B.: Interface conditions for degenerate two-phase flow equations in one space dimension. - In: Analysis 29, 299-316 (2009) / DOI 10.1524/anly.2009.1036
Appears in Collections:Preprints der Fakultät für Mathematik
Schweizer, Ben Prof. Dr.

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