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Computing and Comparing Effective Properties for Flow and Transport in Computer-Generated Porous Media
Joint Authors
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-24, 24 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-13
Country of Publication
Egypt
No. of Pages
24
Main Subjects
Abstract EN
We compute effective properties (i.e., permeability, hydraulic tortuosity, and diffusive tortuosity) of three different digital porous media samples, including in-line array of uniform shapes, staggered-array of squares, and randomly distributed squares.
The permeability and hydraulic tortuosity are computed by solving a set of rescaled Stokes equations obtained by homogenization, and the diffusive tortuosity is computed by solving a homogenization problem given for the effective diffusion coefficient that is inversely related to diffusive tortuosity.
We find that hydraulic and diffusive tortuosity can be quantitatively different by up to a factor of ten in the same pore geometry, which indicates that these tortuosity terms cannot be used interchangeably.
We also find that when a pore geometry is characterized by an anisotropic permeability, the diffusive tortuosity (and correspondingly the effective diffusion coefficient) can also be anisotropic.
This finding has important implications for reservoir-scale modeling of flow and transport, as it is more realistic to account for the anisotropy of both the permeability and the effective diffusion coefficient.
American Psychological Association (APA)
Allen, Rebecca& Sun, Shuyu. 2017. Computing and Comparing Effective Properties for Flow and Transport in Computer-Generated Porous Media. Geofluids،Vol. 2017, no. 2017, pp.1-24.
https://search.emarefa.net/detail/BIM-1155559
Modern Language Association (MLA)
Allen, Rebecca& Sun, Shuyu. Computing and Comparing Effective Properties for Flow and Transport in Computer-Generated Porous Media. Geofluids No. 2017 (2017), pp.1-24.
https://search.emarefa.net/detail/BIM-1155559
American Medical Association (AMA)
Allen, Rebecca& Sun, Shuyu. Computing and Comparing Effective Properties for Flow and Transport in Computer-Generated Porous Media. Geofluids. 2017. Vol. 2017, no. 2017, pp.1-24.
https://search.emarefa.net/detail/BIM-1155559
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1155559