A hybrid pressure approximation in the control volume finite element method for multiphase flow and transport in heterogeneous porous media
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Published version
Author(s)
Al Kubaisy, Jumanah
Salinas, Pablo
Jackson, Matthew D
Type
Journal Article
Abstract
We present a new hybrid pressure formulation applied to the control volume finite element (CVFE) method to model multiphase flow and transport in highly heterogeneous porous media. The formulation effectively captures sharp saturation changes in the presence of discontinuous material properties by employing a discontinuous pressure approximation at material interfaces. The heterogeneous porous medium is divided into sub-domains within which material properties are uniform or smoothly varying. By construction, the resultant control volume dual mesh is restricted within a sub-domain. The artificial mass leakage across material property boundaries observed in classical CVFE methods is therefore circumvented. The approach applies the robust continuous pressure approximation in the rest of the computational domain; the discontinuous approximation is applied only at the sub-domain boundaries. The discontinuous parameters necessary to achieve mass conservative solutions, locally and globally, are described. We demonstrate the accuracy and efficiency of the new approach by comparison with the classical continuous CVFE method on various examples of heterogeneous domains as well as establishing the convergence of the numerical method. The proposed hybrid formulation significantly outperforms the accuracy and efficiency of classical CVFE methods that use the same order of approximation for modeling multiphase flow in heterogeneous porous media.
Date Issued
2023-02-15
Date Acceptance
2022-12-03
Citation
Journal of Computational Physics, 2023, 475
ISSN
0021-9991
Publisher
Elsevier
Journal / Book Title
Journal of Computational Physics
Volume
475
Copyright Statement
© 2022 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY license
(http://creativecommons.org/licenses/by/4.0/).
(http://creativecommons.org/licenses/by/4.0/).
License URL
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000912810400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
2-PHASE FLOW
Computer Science
Computer Science, Interdisciplinary Applications
CVFE methods
Discontinuous permeability
DISCRETIZATION
Hybrid pressure formulation
Multiphase flow
MULTIPOINT
Physical Sciences
Physics
Physics, Mathematical
SCHEMES
Science & Technology
SIMULATION
Technology
UNSTRUCTURED GRIDS
Publication Status
Published
Article Number
111839
Date Publish Online
2022-12-09