Simulating Anomalous Dispersion in Porous Media Using the Unstructured Lattice Boltzmann Method
Flow in porous media is a significant challenge to many computational fluid dynamics methods because of the complex boundaries separating pore fluid and host medium. However, the rapid development of the lattice Boltzmann methods and experimental imaging techniques now allow us to efficiently and robust...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2015-07-01
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| Series: | Frontiers in Physics |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fphy.2015.00050/full |
| _version_ | 1819116311509204992 |
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| author | Marek Krzysztof Misztal Anier eHernandez-Garcia Rastin eMatin Dirk eMüter Diwaker eJha Henning Osholm Sørensen Joachim eMathiesen |
| author_facet | Marek Krzysztof Misztal Anier eHernandez-Garcia Rastin eMatin Dirk eMüter Diwaker eJha Henning Osholm Sørensen Joachim eMathiesen |
| author_sort | Marek Krzysztof Misztal |
| collection | DOAJ |
| description | Flow in porous media is a significant challenge to many computational fluid dynamics methods because of the complex boundaries separating pore fluid and host medium. However, the rapid development of the lattice Boltzmann methods and experimental imaging techniques now allow us to efficiently and robustly simulate flows in the pore space of porous rocks. Here we study the flow and dispersion in the pore space of limestone samples using the unstructured, characteristic based off-lattice Boltzmann method. We use the method to investigate the anomalous dispersion of particles in the pore space. We further show that the complex pore network limits the effectivity by which pollutants in the pore space can be removed by continuous flushing. In the smallest pores, diffusive transport dominates over advective transport and therefore cycles of flushing and no flushing, respectively, might be a more efficient strategy for pollutant removal. |
| first_indexed | 2024-12-22T05:15:04Z |
| format | Article |
| id | doaj.art-d1806099e70a4debb242d7152b5d4efc |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-12-22T05:15:04Z |
| publishDate | 2015-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-d1806099e70a4debb242d7152b5d4efc2022-12-21T18:37:53ZengFrontiers Media S.A.Frontiers in Physics2296-424X2015-07-01310.3389/fphy.2015.00050150256Simulating Anomalous Dispersion in Porous Media Using the Unstructured Lattice Boltzmann MethodMarek Krzysztof Misztal0Anier eHernandez-Garcia1Rastin eMatin2Dirk eMüter3Diwaker eJha4Henning Osholm Sørensen5Joachim eMathiesen6University of CopenhagenUniversity of CopenhagenUniversity of CopenhagenUniversity of CopenhagenUniversity of CopenhagenUniversity of CopenhagenUniversity of CopenhagenFlow in porous media is a significant challenge to many computational fluid dynamics methods because of the complex boundaries separating pore fluid and host medium. However, the rapid development of the lattice Boltzmann methods and experimental imaging techniques now allow us to efficiently and robustly simulate flows in the pore space of porous rocks. Here we study the flow and dispersion in the pore space of limestone samples using the unstructured, characteristic based off-lattice Boltzmann method. We use the method to investigate the anomalous dispersion of particles in the pore space. We further show that the complex pore network limits the effectivity by which pollutants in the pore space can be removed by continuous flushing. In the smallest pores, diffusive transport dominates over advective transport and therefore cycles of flushing and no flushing, respectively, might be a more efficient strategy for pollutant removal.http://journal.frontiersin.org/Journal/10.3389/fphy.2015.00050/fullLattice Boltzmann Methodnumerical modellingflow in porous mediaUnstructured gridsDispersion in porous media |
| spellingShingle | Marek Krzysztof Misztal Anier eHernandez-Garcia Rastin eMatin Dirk eMüter Diwaker eJha Henning Osholm Sørensen Joachim eMathiesen Simulating Anomalous Dispersion in Porous Media Using the Unstructured Lattice Boltzmann Method Frontiers in Physics Lattice Boltzmann Method numerical modelling flow in porous media Unstructured grids Dispersion in porous media |
| title | Simulating Anomalous Dispersion in Porous Media Using the Unstructured Lattice Boltzmann Method |
| title_full | Simulating Anomalous Dispersion in Porous Media Using the Unstructured Lattice Boltzmann Method |
| title_fullStr | Simulating Anomalous Dispersion in Porous Media Using the Unstructured Lattice Boltzmann Method |
| title_full_unstemmed | Simulating Anomalous Dispersion in Porous Media Using the Unstructured Lattice Boltzmann Method |
| title_short | Simulating Anomalous Dispersion in Porous Media Using the Unstructured Lattice Boltzmann Method |
| title_sort | simulating anomalous dispersion in porous media using the unstructured lattice boltzmann method |
| topic | Lattice Boltzmann Method numerical modelling flow in porous media Unstructured grids Dispersion in porous media |
| url | http://journal.frontiersin.org/Journal/10.3389/fphy.2015.00050/full |
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