کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4681780 | 1348873 | 2012 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effect of fracture-skin on virus transport in fractured porous media Effect of fracture-skin on virus transport in fractured porous media](/preview/png/4681780.png)
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.
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► Presence of fracture-skin significantly affects the virus transport mechanism.
► Virus concentration decreases with increase in skin porosity, diffusion coefficient.
► Virus concentration decreases with reduction in fracture aperture.
Journal: Geoscience Frontiers - Volume 3, Issue 6, November 2012, Pages 893–900