Refine cylinder2d to stay stable even at very low resolutions

Somewhat fiddled together but works as expected. Refinement areas are
informed by Knudsen metric results. The key is to refine the outflow.
Sadly this requires refinement-overlap-crossing boundary conditions.

Interface for detailed (i.e. cell-relative) grid refinement control
still has room for improvement. Mixing physical indicators and cell
alignment requirements is problematic.

0 files changed, 0 insertions, 0 deletions