Finite element method for the incompressible nuclear waste-disposal contamination in porous media

This paper describes a two-dimensional mixed finite element model which is used to simulate flow and transport processes in geologic media. The model was developed for use by the Nuclear Regulatory Commission in the analysis of deep geologic nuclear waste-disposal facilities. The mathematical model is a fully transient incompressible, two-dimensional model which solves the coupled equations for transport in geologic media. The processes considered are: fluid flow, heat transport, dominant-species miscible displacement (brine), and trace-species miscible displacement (radionuclide). (author)