> Does the order in which I apply the nonzero and zero constraints matter?
These are two independent objects, so no. > Currently I apply the inlet and then the no-slip in the nonzero_constraints, > thus the bottom and top wall appear after the inlet. Afterward the cylinder > is put in the zero constraints. I don't understand. You need boundary conditions in nonzero_constraints and zero_constraints for all boundaries. The reason for these two sets is that one is used for the initial solve, while the second one is used for the Newton updates. -- Timo Heister http://www.math.clemson.edu/~heister/ -- 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.
