Please provide the version of DOLFIN you are using and the output of what DOLFIN tells you when you actually run the code. If you also provide a minimal runnable code snippet that would also be very useful!
Johan On Monday January 10 2011 10:00:04 B. Emek Abali wrote: > New question #140910 on DOLFIN: > https://answers.launchpad.net/dolfin/+question/140910 > > setting a mixed space (velocity field v, pressure field p) as > > V = VectorFunctionSpace(mesh, 'CG', 1) > Q = FunctionSpace(mesh, 'DG', 0) > ME = MixedFunctionSpace([V,Q]) > > and by describing > > null = Constant(0.0) > class TopDrag(Expression): > def eval(self, vec, x): > vec[0] = 10.0 > vec[1] = 0.0 > vec[2] = 0.0 > def dim(self): > return 3 > > vOnTop = TopDrag() > > wanted to reach: > > a given velocity on a subdomain (not here but defined in a proper way with > compile_subdomains() ) DirichletBC(ME.sub(0), vOnTop, top) > > zero velocity in one direction > DirichletBC(ME.sub(0).sub(1), null, front) > > and a given pressure on a subdomain > DirichletBC(ME.sub(1), pIn, left) > > which I couldn't :) > > Any sharp eyes where I am not thinking as FEniCS wants? _______________________________________________ Mailing list: https://launchpad.net/~dolfin Post to : [email protected] Unsubscribe : https://launchpad.net/~dolfin More help : https://help.launchpad.net/ListHelp
