An unfitted dG cut-cell discretization of laminar flow at the pore-scale (Engwer 2009).

The geometry is obtained from a micro-CT scan. In order to avoid meshing problems we employed a cut-cell based finite element simulation using discontinuous trial functions. Solving the flow-field at the pore-scale yields an effective permeability at the macro-scale.

Level-set based cut-cell reconstructions as used in this simulation are now available in the dune-tpmc module.