DUNE, the Distributed and Unified Numerics Environment is a modular toolbox for solving partial differential equations (PDEs) with grid-based methods. It supports the easy implementation of methods like Finite Elements (FE), Finite Volumes (FV), and also Finite Differences (FD).
UG is a flexible software tool for the numerical solution of partial differential equations on unstructured meshes, with a focus on multigrid methods. It has a very powerful grid manager, which supports two- and three-dimensional grids with mixed element types. The grids can be adaptively refinement
... [More] using either classic red/green-refinement, or pure red refinement with hanging nodes. All this is fully parallelized and can run on large distributed machines.
UG supports many different discretization schemes. UG can be used through its built-in shell, using a special scripting language. It can also be used as a library from other finite element codes. [Less]
DUNE-FoamGrid is an implementation of the DUNE grid interface that implements one- and two-dimensional grids in a physical space of arbitrary dimension. The grids are not expected to have a manifold structure, i.e., more than two elements can share a common facet. This makes FoamGrid the grid data
... [More] structure of choice for simulating structures such as foams, discrete fracture networks, or network flow problems. Unique features include:
Element parametrizations and grid growth (elements can be added to or removed from the grid at runtime). [Less]
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