Hi Daniel Thanks for your prompt response and guidelines. After going through these examples, I have a better understanding now.
Best, Baoyun On Sunday, June 2, 2019 at 7:54:16 PM UTC-5, Daniel Arndt wrote: > > Bayon, > > What's the most appropriate/easiest way to setup the matrix for such a >> multi-domain problem in the dealii programming environment? >> > > Essentially, you are solving a Laplace problem with discontinuous > coefficients. In case, there are no interface conditions between the > different materials, > you should be good to just look at step-6 (and the previous tutorial > programs of course) to begin with. For periodic boundary consitionsyou > might want to have a look at step-45. > > >> In an actual electric machine, the air region is very thin, resulting a >> large aspect ratio. What's the most appropriate way to mesh this region? >> > > We provide generators for a bunch of meshes in the GridGenerator > namespace. In you case, I would make sure that each materials are not cut > by cells. > You might want to merge triangulations via > GridGenerator::merge_triangulations. With respect to the thin air region > anisotropic refinement might be interesting (see > https://www.dealii.org/current/doxygen/deal.II/step_30.html) > if you can't afford a suitably (isotropically) globally refined mesh. > > Best, > Daniel > On Sunday, June 2, 2019 at 7:54:16 PM UTC-5, Daniel Arndt wrote: > > Bayon, > > What's the most appropriate/easiest way to setup the matrix for such a >> multi-domain problem in the dealii programming environment? >> > > Essentially, you are solving a Laplace problem with discontinuous > coefficients. In case, there are no interface conditions between the > different materials, > you should be good to just look at step-6 (and the previous tutorial > programs of course) to begin with. For periodic boundary consitionsyou > might want to have a look at step-45. > > >> In an actual electric machine, the air region is very thin, resulting a >> large aspect ratio. What's the most appropriate way to mesh this region? >> > > We provide generators for a bunch of meshes in the GridGenerator > namespace. In you case, I would make sure that each materials are not cut > by cells. > You might want to merge triangulations via > GridGenerator::merge_triangulations. With respect to the thin air region > anisotropic refinement might be interesting (see > https://www.dealii.org/current/doxygen/deal.II/step_30.html) > if you can't afford a suitably (isotropically) globally refined mesh. > > Best, > Daniel > On Sunday, June 2, 2019 at 7:54:16 PM UTC-5, Daniel Arndt wrote: > > Bayon, > > What's the most appropriate/easiest way to setup the matrix for such a >> multi-domain problem in the dealii programming environment? >> > > Essentially, you are solving a Laplace problem with discontinuous > coefficients. In case, there are no interface conditions between the > different materials, > you should be good to just look at step-6 (and the previous tutorial > programs of course) to begin with. For periodic boundary consitionsyou > might want to have a look at step-45. > > >> In an actual electric machine, the air region is very thin, resulting a >> large aspect ratio. What's the most appropriate way to mesh this region? >> > > We provide generators for a bunch of meshes in the GridGenerator > namespace. In you case, I would make sure that each materials are not cut > by cells. > You might want to merge triangulations via > GridGenerator::merge_triangulations. With respect to the thin air region > anisotropic refinement might be interesting (see > https://www.dealii.org/current/doxygen/deal.II/step_30.html) > if you can't afford a suitably (isotropically) globally refined mesh. > > Best, > Daniel > -- 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/e4082fe9-dcab-46cc-b38e-1adc87808733%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
