[Dune] ALUGrid for tetrahedral simplices with periodic boundaries ?

[Robert Kloefkorn]

Hello Benedikt,

> I would like to implement periodic boundaries for an electromagnetic
> algorithm,using the ALUGrid tetrahedral simplex grid.

> In particular, since I need to couple degrees of freedom between
> master-slave boundaries I would like to know if
> this is operational in ALUGrid and/or its embedding inside Dune ?

this should be implemented and fully functional in DUNE and ALUGrid
1.23, also in parallel. I didn't test this in a production run since I
didn't have a good example ready. So I wouldn't be surprised if some
problems occur.

So to start you should implement your scheme as usually. On
intersections with periodic boundary you get as the neighbor the element
on the "other" side of the boundary. What you do with it is up to you.
That is the current interface status concerning periodic boundaries in
DUNE. If the whole thing runs in serial one can advance to parallel.

Best regards

Robert

-- 

  Dr. Robert Klöfkorn         <robertk at mathematik.uni-freiburg.de>

  Mathematisches Institut              Tel: +49 (0) 761 203 5630
  Abt. für Angewandte Mathematik       Fax: +49 (0) 761 203 5632
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