Decoupled and Multiphysics Models for Non-Isothermal Compositional Two-Phase Flow in Porous Media

Decoupled and Multiphysics Models for Non-Isothermal Compositional Two-Phase Flow in Porous Media

Year:    2012

Author:    J. Fritz, B. Flemisch, R. Helming

International Journal of Numerical Analysis and Modeling, Vol. 9 (2012), Iss. 1 : pp. 17–28

Abstract

A new multiphysics model for two-phase compositional flow is presented. It is designed to fit the level of model complexity to that of the flow and transport processes taking place in a given region of the domain. Thus, the model domain is divided into a subdomain which accounts for two-phase compositional processes and another in which single-phase transport is described. A coupling of the simple and complex equations gives rise to an efficient model. Special interest is placed in the discretization of the two-phase compositional model in a finite-volume context and an IMPES time scheme with decoupled pressure and transport equations. For optimal subdomain determination, an easy-to-handle, adaptive scheme is presented. The practical usability is demonstrated on a real live problem from carbon dioxide sequestration.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2012-IJNAM-608

International Journal of Numerical Analysis and Modeling, Vol. 9 (2012), Iss. 1 : pp. 17–28

Published online:    2012-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    12

Keywords:    Multiphysics domain decomposition multiphase flow compositional sequential decoupled formulation.

Author Details

J. Fritz

B. Flemisch

R. Helming