Hi!
I'm looking for quick advise. In my calculations I solve two equations (in 2D) consecutively: the Poisson equation where I obtain electric field *E*, and then I solve the continuity equation where I obtain e.g. density of electrons *n*. I want to get current that is *j* = C*nE* where C is a constant (I need to use one variable from first and one from second equation). Problem is that in Poisson equation I've used Raviart-Thomas finite elements and in Continuity equation I've used discontinuous elements (FE_DGQ) and the position of dofs in this two methods do not coincide with each other (RT dofs are placed on the faces of a cell when DGQ on the vertexes). My question is: how do you wisely combine two dof handlers to produce a new variable which I want to visualize on the same mesh? E.g: How to extrapolate the values from RT-elements to vertexes, then for each vertex calculate current *j*, and then add current variable to the solution in the way that I will be able to visualize it in paraview? Bonus question: I'm not sure now but I may need to have two different triangulations in those equations, so even the cells will differ one from another (however the overall domain will remain the same). How should I deal with this situation? -- 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/595dcf90-2713-427a-ab39-d055c4ed6f7d%40googlegroups.com.
