Effect of fracture-skin on virus transport in fractured porous media
A numerical model is developed for describing the transport of virus in a fracture-matrix coupled system with fracture-skin. An advective dispersive virus transport equation, including first-order sorption and inactivation constant is used for simulating the movement of viruses. Implicit finite-diff...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2012-11-01
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| Series: | Geoscience Frontiers |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674987112000369 |
| _version_ | 1797706179298721792 |
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| author | N. Natarajan G. Suresh Kumar |
| author_facet | N. Natarajan G. Suresh Kumar |
| author_sort | N. Natarajan |
| collection | DOAJ |
| description | A numerical model is developed for describing the transport of virus in a fracture-matrix coupled system with fracture-skin. An advective dispersive virus transport equation, including first-order sorption and inactivation constant is used for simulating the movement of viruses. Implicit finite-difference numerical technique is used to solve the coupled non-linear governing equations for the triple continuum model consisting of fracture, fracture-skin and the rock-matrix. A varying grid is adopted at the fracture and fracture-skin interface to capture the mass transfer. Sensitivity analysis was performed to investigate the effect of various properties of the fracture-skin as well as viruses on the virus concentration in the fractured formation with fracture-skin. Simulation results suggest that the virus concentration in the fracture decreases with increment in the fracture-skin porosity, fracture-skin diffusion coefficient, mass transfer coefficient, inactivation constant and sorption distribution coefficient, and with reduction in the fracture aperture. |
| first_indexed | 2024-03-12T05:48:29Z |
| format | Article |
| id | doaj.art-4fd3331bc99449ada82d0ed6ed9df15f |
| institution | Directory Open Access Journal |
| issn | 1674-9871 |
| language | English |
| last_indexed | 2024-03-12T05:48:29Z |
| publishDate | 2012-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Geoscience Frontiers |
| spelling | doaj.art-4fd3331bc99449ada82d0ed6ed9df15f2023-09-03T05:25:51ZengElsevierGeoscience Frontiers1674-98712012-11-013689390010.1016/j.gsf.2012.03.004Effect of fracture-skin on virus transport in fractured porous mediaN. Natarajan0G. Suresh Kumar1EWRE Division, Department of Civil Engineering, Indian Institute of Technology, Madras, Chennai 36, IndiaDepartment of Ocean Engineering, Indian Institute of Technology, Madras, Chennai 36, IndiaA numerical model is developed for describing the transport of virus in a fracture-matrix coupled system with fracture-skin. An advective dispersive virus transport equation, including first-order sorption and inactivation constant is used for simulating the movement of viruses. Implicit finite-difference numerical technique is used to solve the coupled non-linear governing equations for the triple continuum model consisting of fracture, fracture-skin and the rock-matrix. A varying grid is adopted at the fracture and fracture-skin interface to capture the mass transfer. Sensitivity analysis was performed to investigate the effect of various properties of the fracture-skin as well as viruses on the virus concentration in the fractured formation with fracture-skin. Simulation results suggest that the virus concentration in the fracture decreases with increment in the fracture-skin porosity, fracture-skin diffusion coefficient, mass transfer coefficient, inactivation constant and sorption distribution coefficient, and with reduction in the fracture aperture.http://www.sciencedirect.com/science/article/pii/S1674987112000369Fracture-skinVirus transportRock-matrixFracture |
| spellingShingle | N. Natarajan G. Suresh Kumar Effect of fracture-skin on virus transport in fractured porous media Geoscience Frontiers Fracture-skin Virus transport Rock-matrix Fracture |
| title | Effect of fracture-skin on virus transport in fractured porous media |
| title_full | Effect of fracture-skin on virus transport in fractured porous media |
| title_fullStr | Effect of fracture-skin on virus transport in fractured porous media |
| title_full_unstemmed | Effect of fracture-skin on virus transport in fractured porous media |
| title_short | Effect of fracture-skin on virus transport in fractured porous media |
| title_sort | effect of fracture skin on virus transport in fractured porous media |
| topic | Fracture-skin Virus transport Rock-matrix Fracture |
| url | http://www.sciencedirect.com/science/article/pii/S1674987112000369 |
| work_keys_str_mv | AT nnatarajan effectoffractureskinonvirustransportinfracturedporousmedia AT gsureshkumar effectoffractureskinonvirustransportinfracturedporousmedia |