Yes, the FE_Nedelec elements will work for not-so-complicated meshes, for example, a simple cube will work just fine.
Best, Sebastian Vinta Yinda Wang schrieb am Montag, 24. Oktober 2022 um 10:52:19 UTC+2: > Thank you Wolfgang and thank you Alexander! > In the Todo list of FE_Nedelec, 3-D cases ought to be carefully treated, > because (from my understanding) some complex geometries in 3-D with > non-standard grids (maybe unstructed or distorted initially) will introduce > sign conflict issues present in traditional Nédélec elements that arise > from the edge and face parameterization. But for some not-so-complicated > meshes and geometries, it might still work? > > Best > Vinta > > 在2022年10月24日星期一 UTC+8 16:03:49<Alexander> 写道： > >> Dear Vinta >> for 2-D, you could consider resorting to FE_Nedelec, which supports >> hanging nodes. In contrast to the 3-D case, FE_Nedelec should work even for >> (some) non-standard grids in 2-D. >> >> Best >> Alexander >> >> >> >> On Monday, October 24, 2022 at 4:46:32 AM UTC+2 Wolfgang Bangerth wrote: >> >>> On 10/23/22 01:46, Vinta Yinda Wang wrote: >>> > I was trying to do adaptive mesh refinement in 2D-electromagnetic >>> problem >>> > following the program provided in step-81. The refinement procedure is >>> > refererred to step-27, where I implement the FESystem of real and >>> imaginary >>> > FE_NedelecSZ part in hp::FECollection class. >>> > After the first refinement step, I failed to make the hanging node >>> constraint . >>> > The violated condition is detailed as >>> > *The finite element for which you try to obtain hanging node >>> > constraints does not appear to implement them. >>> > * >>> > Has anyone encountered the same problem before? I am not sure whether >>> is the >>> > problem in my code, or the hanging node constraint hasn't been >>> implemented >>> > in FE_NedelecSZ? >>> >>> Vinta: The latter. They are simply not yet implemented. But you can of >>> course >>> help with that and we will be very happy to guide you to what needs to >>> be >>> implemented! >>> >>> Best >>> W. >>> >>> -- >>> ------------------------------------------------------------------------ >>> Wolfgang Bangerth email: [email protected] >>> www: http://www.math.colostate.edu/~bangerth/ >>> >>> -- 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/a0c5df40-8a53-4558-be46-b59a94fe0869n%40googlegroups.com.
