DarcyTools: A Computer Code for Hydrogeological Analysis of Nuclear Waste Repositories in Fractured Rock
2014
A computer code for simulation of
groundwater flow and transport is described. Both porous and fractured media
are handled by the code. The main intended application is the analysis of a
deep repository for nuclear waste and for this reason flow and transport in a
sparsely fractured rock is in focus. The mathematical and numerical models are
described in some detail. In short, one may say that the code is based on the
traditional conservation and state laws, but also embodies a number of
submodels (subgrid processes, permafrost, etc). An unstructured Cartesian grid
and a finite volume approach are the key elements in the discretization of the
basic equations. A multigrid solver is part of the code as well as a
parallelization option based on the SPMD (Single-Program Multiple-Data)
method. The main application areas are summarized and an application to a deep
repository is discussed in some more detail.
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