> I would like to use the second one. Now, ansatz- and test functions in > the scalar products given in the problem above come from different > spaces H^1 and H^1_0. How can I apply boundary data in an appropriate > way? > > For me, the situation is clear when dealing with normal Laplace > equation: > > (\nabla u,\nabla phi) = (f,phi) for all phi\in H^1_0 > > then I use the deal.II-function: > VectorTools::interpolate_boundary_values (...) > > to apply Dirichlet values because here ansatz- and test-functions come > from the same space. > > How is procedure with such a mixed formulation and different test > spaces?
interpolate_boundary_value has an extra argument that indicates for which vector component you want boundary values. This allows you to select u but not v. Best W. ------------------------------------------------------------------------- Wolfgang Bangerth email: [email protected] www: http://www.math.tamu.edu/~bangerth/ _______________________________________________ dealii mailing list http://poisson.dealii.org/mailman/listinfo/dealii
