VIRTUS
Category Contaminant transport (1D)
Platform DOS
Status Public domain
Description VIRTUS (Viral Flow and Transport in the Unsaturated Zone) is a predictive finite difference model for virus fate and transport in unsaturated soil. The model allows the virus inactivation rate to vary based on soil temperature. The model supports unsteady flow, transport in layered soils, different virus inactivation rates for adsorbed versus freely suspended virus particles, and the flow of heat through soils. It is assumed that viruses are introduced at the soil surface. Based on mass conservation of a contaminant in porous media and couples the flow of water, viruses, and heat through soil. The model can be used to estimate the number of viruses that reach the groundwater after travelling through the soil from a contamination source. The upper boundary condition for flow is described in terms of total water flux and includes the effects of precipitation and evaporation. The upper condition for virus transport includes virus infiltration with rain. The bottom of the profile is a fixed water table elevation with constant soil water content and temperature.
Cost US Dollars 75
Data formats supported None stated
Supplier in United States of America  International Ground Water Modeling Center 

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