Hi Mihai, the problem is, that you can not constrain degrees of freedom on the periodic faces because there are no degrees of freedom there (the element is discontinuous after all). So I guess the only option is to assemble face integrals on the periodic faces. You have to identify the correct faces manually I fear.
-- Timo Heister http://num.math.uni-goettingen.de/~heister On Wed, Sep 15, 2010 at 5:22 PM, mihai alexe <[email protected]> wrote: > Hello all, > > I looked at step-45 on how to implement periodic boundaries for the Poisson > problem. I am looking to apply these ideas to the transport problem in > step-12. However, there are no matrix constraints with discontinuous > elements... where should the periodic boundary constraints come into place > in this case? thanks for your guidance! > > --thanks! > Mihai > > > _______________________________________________ > dealii mailing list http://poisson.dealii.org/mailman/listinfo/dealii > > _______________________________________________ dealii mailing list http://poisson.dealii.org/mailman/listinfo/dealii
