Modelling of the transport of species in the fractured rock environment

Modelling of flow in fractured environment is very important problem for applied hydrogeology (for example for simulations of the neighbourhood of the radioactive waste repositories). We present the transport model composed of two parts. First, the fracture fluid flow model is based on the description by the Darcy’s law and the mass balance equation with Dirichlet boundary conditions. The second part of the transport model includes the convection term using the velocity computed in the fluid flow model, diffusion-dispersion term with dual porosity (representing microfractures), and chemical term describing sorption, radioactive decay, and chemical interactions.