Pore-scale simulation of fluid flow and solute dispersion in three-dimensional porous media

Handle URI:
http://hdl.handle.net/10754/346732
Title:
Pore-scale simulation of fluid flow and solute dispersion in three-dimensional porous media
Authors:
Icardi, Matteo ( 0000-0003-3924-3117 ) ; Boccardo, Gianluca; Marchisio, Daniele L.; Tosco, Tiziana; Sethi, Rajandrea
Abstract:
In the present work fluid flow and solute transport through porous media are described by solving the governing equations at the pore scale with finite-volume discretization. Instead of solving the simplified Stokes equation (very often employed in this context) the full Navier-Stokes equation is used here. The realistic three-dimensional porous medium is created in this work by packing together, with standard ballistic physics, irregular and polydisperse objects. Emphasis is placed on numerical issues related to mesh generation and spatial discretization, which play an important role in determining the final accuracy of the finite-volume scheme and are often overlooked. The simulations performed are then analyzed in terms of velocity distributions and dispersion rates in a wider range of operating conditions, when compared with other works carried out by solving the Stokes equation. Results show that dispersion within the analyzed porous medium is adequately described by classical power laws obtained by analytic homogenization. Eventually the validity of Fickian diffusion to treat dispersion in porous media is also assessed. © 2014 American Physical Society.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
Pore-scale simulation of fluid flow and solute dispersion in three-dimensional porous media 2014, 90 (1) Physical Review E
Publisher:
American Physical Society (APS)
Journal:
Physical Review E
Issue Date:
31-Jul-2014
DOI:
10.1103/PhysRevE.90.013032
Type:
Article
ISSN:
1539-3755; 1550-2376
Additional Links:
http://link.aps.org/doi/10.1103/PhysRevE.90.013032
Appears in Collections:
Articles; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorIcardi, Matteoen
dc.contributor.authorBoccardo, Gianlucaen
dc.contributor.authorMarchisio, Daniele L.en
dc.contributor.authorTosco, Tizianaen
dc.contributor.authorSethi, Rajandreaen
dc.date.accessioned2015-03-17T06:11:43Zen
dc.date.available2015-03-17T06:11:43Zen
dc.date.issued2014-07-31en
dc.identifier.citationPore-scale simulation of fluid flow and solute dispersion in three-dimensional porous media 2014, 90 (1) Physical Review Een
dc.identifier.issn1539-3755en
dc.identifier.issn1550-2376en
dc.identifier.doi10.1103/PhysRevE.90.013032en
dc.identifier.urihttp://hdl.handle.net/10754/346732en
dc.description.abstractIn the present work fluid flow and solute transport through porous media are described by solving the governing equations at the pore scale with finite-volume discretization. Instead of solving the simplified Stokes equation (very often employed in this context) the full Navier-Stokes equation is used here. The realistic three-dimensional porous medium is created in this work by packing together, with standard ballistic physics, irregular and polydisperse objects. Emphasis is placed on numerical issues related to mesh generation and spatial discretization, which play an important role in determining the final accuracy of the finite-volume scheme and are often overlooked. The simulations performed are then analyzed in terms of velocity distributions and dispersion rates in a wider range of operating conditions, when compared with other works carried out by solving the Stokes equation. Results show that dispersion within the analyzed porous medium is adequately described by classical power laws obtained by analytic homogenization. Eventually the validity of Fickian diffusion to treat dispersion in porous media is also assessed. © 2014 American Physical Society.en
dc.publisherAmerican Physical Society (APS)en
dc.relation.urlhttp://link.aps.org/doi/10.1103/PhysRevE.90.013032en
dc.rightsArchived with thanks to Physical Review Een
dc.titlePore-scale simulation of fluid flow and solute dispersion in three-dimensional porous mediaen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalPhysical Review Een
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionInstitute for Computational Engineering and Sciences, University of Texas at Austin, 78712-0027, Austin, Texas, USAen
dc.contributor.institutionDepartment of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italyen
dc.contributor.institutionDepartment of Environment, Land and Infrastructures, Politecnico di Torino, 10129 Torino, Italyen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorIcardi, Matteoen
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