Contaminant Transport in Unsaturated Heterogeneous Formations

Felipe Pereira, José Aquino, Alexandre Francisco, Hélio Amaral Souto & Felipe Pereira
Leaking nuclear waste repositories in unsaturated soils can be of significant impact to the environment due to transient water infiltration. In order to investigate this problem through numerical simulations we have developed a simulator which takes into account the interaction of radionuclide plumes and two-phase (air-water) flows. We introduce an operator splitting scheme which allows us to solve the governing equations with appropriate numerical methods. For the advective transport of solute plumes we employ eulerian-lagrangian...
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