When a realistic modelling of radioactive contaminant transport in flowing groundwater is required, very large systems of coupled partial and ordinary differential equations can arise that have to be solved numerically. For that purpose, the software package r3t is developed in which several advanced numerical methods are implemented to solve such models efficiently and accurately. Using software tools of r3t one can treat successfully nontrivial mathematical problems like advection-dominated system with different retardation of transport for each component and with nonlinear Freundlich sorption and/or precipitation. Additionally, long time simulations on complex 3D geological domains using unstructured grids can be realized. In this paper we introduce and summarize the most important and novel features of numerical simulation for radioactive contaminant transport in porous media when using r3t.
ASJC Scopus subject areas
- Theoretical Computer Science
- Modeling and Simulation
- Computer Vision and Pattern Recognition
- Computational Theory and Mathematics