About the Dependence of Breakthrough Curves on Flow Direction in Column Experiments of Transport across a Sharp Interface Separating Different Porous Materials
Conservative transport experiments with layered porous materials (coarse-grained vs. fine-grained) were performed through experimental cylindrical columns to assess the possible occurrence of interface processes at the discontinuity between media with different hydrodynamic and hydrodispersive prope...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2019/8348175 |
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| author | Francesca Giacobbo Mauro Giudici Mirko Da Ros |
| author_facet | Francesca Giacobbo Mauro Giudici Mirko Da Ros |
| author_sort | Francesca Giacobbo |
| collection | DOAJ |
| description | Conservative transport experiments with layered porous materials (coarse-grained vs. fine-grained) were performed through experimental cylindrical columns to assess the possible occurrence of interface processes at the discontinuity between media with different hydrodynamic and hydrodispersive properties, as proposed by some authors in the past based on modelling and experimental results. The outcomes of the present work show that, under certain conditions, the breakthrough curves (BTCs) obtained for flow through the coarse-grained and then through the fine-grained media (CtF) or vice versa (FtC) can differ. More specifically, an asymmetric behaviour is observed for cases when the ratio between the column and grain diameters is small. Moreover, the discrepancies between CtF and FtC BTCs are enhanced for low flow rates and low quantity of injected solute. |
| format | Article |
| id | doaj-art-7be321bd5aa34cb6bbe8ddb67ebe0607 |
| institution | OA Journals |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-7be321bd5aa34cb6bbe8ddb67ebe06072025-08-20T02:06:53ZengWileyGeofluids1468-81151468-81232019-01-01201910.1155/2019/83481758348175About the Dependence of Breakthrough Curves on Flow Direction in Column Experiments of Transport across a Sharp Interface Separating Different Porous MaterialsFrancesca Giacobbo0Mauro Giudici1Mirko Da Ros2Politecnico di Milano, Dipartimento di Energia, Sezione Ingegneria Nucleare, Piazza L. da Vinci 32, Milano 20133, ItalyUniversità degli Studi di Milano, Dipartimento di Scienze della Terra “A. Desio”, via Cicognara 7, 20129 Milano, ItalyPolitecnico di Milano, Dipartimento di Energia, Sezione Ingegneria Nucleare, Piazza L. da Vinci 32, Milano 20133, ItalyConservative transport experiments with layered porous materials (coarse-grained vs. fine-grained) were performed through experimental cylindrical columns to assess the possible occurrence of interface processes at the discontinuity between media with different hydrodynamic and hydrodispersive properties, as proposed by some authors in the past based on modelling and experimental results. The outcomes of the present work show that, under certain conditions, the breakthrough curves (BTCs) obtained for flow through the coarse-grained and then through the fine-grained media (CtF) or vice versa (FtC) can differ. More specifically, an asymmetric behaviour is observed for cases when the ratio between the column and grain diameters is small. Moreover, the discrepancies between CtF and FtC BTCs are enhanced for low flow rates and low quantity of injected solute.http://dx.doi.org/10.1155/2019/8348175 |
| spellingShingle | Francesca Giacobbo Mauro Giudici Mirko Da Ros About the Dependence of Breakthrough Curves on Flow Direction in Column Experiments of Transport across a Sharp Interface Separating Different Porous Materials Geofluids |
| title | About the Dependence of Breakthrough Curves on Flow Direction in Column Experiments of Transport across a Sharp Interface Separating Different Porous Materials |
| title_full | About the Dependence of Breakthrough Curves on Flow Direction in Column Experiments of Transport across a Sharp Interface Separating Different Porous Materials |
| title_fullStr | About the Dependence of Breakthrough Curves on Flow Direction in Column Experiments of Transport across a Sharp Interface Separating Different Porous Materials |
| title_full_unstemmed | About the Dependence of Breakthrough Curves on Flow Direction in Column Experiments of Transport across a Sharp Interface Separating Different Porous Materials |
| title_short | About the Dependence of Breakthrough Curves on Flow Direction in Column Experiments of Transport across a Sharp Interface Separating Different Porous Materials |
| title_sort | about the dependence of breakthrough curves on flow direction in column experiments of transport across a sharp interface separating different porous materials |
| url | http://dx.doi.org/10.1155/2019/8348175 |
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