Hi, > >What does the literature suggest how to handle this situation? > > The literature says, I cite: "The nodes that lie inside the void and whose > nodal support is > not intersected by the void are removed from the calculations. This is > performed usually by removing > the DOFs associated with those nodes from the system of equations and > solving the system > only for the remaining DOFs." The question is how to realise it with dealii > tools by constrainment of > zero degrees of freedom?
Well, I guess you could search for all support points of enriched DoFs that lie outside of your domain of interest and add a homogeneous constraint for them to the AffineConstraints object. The DoFTools::map_dofs_to_support_points <https://www.dealii.org/9.0.0/doxygen/deal.II/namespaceDoFTools.html#a10af6ba7adc43214e7b9f6815588f2aa> and DoFTools::map_support_points_to_dofs <https://www.dealii.org/9.0.0/doxygen/deal.II/namespaceDoFTools.html#aec064dac51c8f66b7aa2a7747641584f> functions may be of some use. By the way, have you looked at the FE_Enriched <https://www.dealii.org/9.0.0/doxygen/deal.II/classFE__Enriched.html> class? It seems to me like its built for applications similar to this one. Best, Jean-Paul -- 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 dealii+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
