Hi, I'm a kind of new user of dealii and I'm trying to set up the boundary conditions for a domain [0, 1] X [0, 1] of incompressible fluid with fully periodic boundary conditions. I know that for an incompressible fluid with fully periodic boundary conditions (velocity both directions and pressure) I need to release one boundary DOF, otherwise the problem will be over constrained.
Therefore, the question is: Is there any way, after I have set up my periodic boundary conditions, to release one DOF? I was thinking it should be something in the constraint matrix but I wasn't sure. I have spent a lot of time to solve that problem but unsuccessfully. I would be great if you could give me some help. Thanks in advance! Best, Magda -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
