Corbin, Creating multiple Triangulations and mapping them is not easy to do. Instead, you want to use FE_Nothing to ignore some cells. Take a loot at step-46 https://dealii.org/current/doxygen/deal.II/step_46.html
Best, Bruno On Monday, March 21, 2022 at 6:47:38 PM UTC-4 [email protected] wrote: > Hello all, > > I have an extruded mesh, and I would like to solve a finite element > problem separately on each 'column' as part of a larger finite element > solve in which all DoF are coupled through a discontinuous Galerkin scheme > for an elliptic equation--so multiply defined values on the boundaries of > each column are not a problem. > > - I already have the columns tagged by material ID > - I imagine I should instantiate a list of new Triangulations, > DoFHandlers, and solver classes for each column and then map the solutions > back to the original domain > - *Is there a good way to extract a separate triangulation for each > column*? I was looking for something similar to extract_boundary_mesh > but with a material_id > > Alternatively, it seems that I could assign the DoFs in the globally > coupled DoFHandler with DoFTools::get_subdomain_association(). *Would > this be a better way to set up each finite element problem by column?* > It's unclear to me if I could use that information to set up an independent > linear system for each subdomain. > > Any guidance would be appreciated! > Corbin > -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/3acf6473-c830-4baf-a7dd-3cb2c35235c4n%40googlegroups.com.
