A Hyperbolic-Elliptic Model of Two-Phase Flow in Porous Media — Existence of Entropy Solutions

A Hyperbolic-Elliptic Model of Two-Phase Flow in Porous Media — Existence of Entropy Solutions

Year:    2012

Author:    G. M. Coclite, K. H. Karlsen, S. Mishra, N. H. Risebro

International Journal of Numerical Analysis and Modeling, Vol. 9 (2012), Iss. 3 : pp. 562–583

Abstract

We consider the flow of two-phases in a porous medium and propose a modified version of the fractional flow model for incompressible, two-phase flow based on a Helmholtz regularization of the Darcy phase velocities. We show the existence of global-in-time entropy solutions for this model with suitable assumptions on the boundary conditions. Numerical experiments demonstrating the approximation of the classical two-phase flow equations with the new model are presented.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2012-IJNAM-647

International Journal of Numerical Analysis and Modeling, Vol. 9 (2012), Iss. 3 : pp. 562–583

Published online:    2012-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    22

Keywords:    Porous media flow conservation law elliptic equation weak solution existence.

Author Details

G. M. Coclite

K. H. Karlsen

S. Mishra

N. H. Risebro