Sumedh, In my project I am modeling two-phase flow using phase-field model (an > interface capturing method). Now I am done with first draft of my code and > I am facing the well-known issue of 'spurious currents in two-phase flow > using FEM' (paper 1 > <http://www.ruhr-uni-bochum.de/jpnum/publications/spurious.pdf> and paper > 2 <https://www.igpm.rwth-aachen.de/Download/reports/pdf/IGPM264.pdf>). > The take home message of paper 2 is to use a finite element space known as > extended finite element space (XFEM) for pressure dofs. I wonder is this fe > is available in deal.ii? > the unfinished example step-47 (completed in [1]) considers an XFEM approach within deal.II. Using the recently introduced FE_Enriched class [2] it should be possible to simplify this a bit.
If not then I would request this feature since it shall come in handy for > two-phase flow researchers. > There seems to be some interest by others in using FE_Enriched for XFEM (https://groups.google.com/forum/#!topic/dealii/GbARfRzwNb4), but deal.II ist still a community project. > Secondly, since there is no tutorial demonstrating full two-phase > formulation (I meant complete modeling i.e. Navier-Stokes + > Phase-Field/Level-Set) I need suggestions (in any form, say any group using > deal.ii or even other FEM package for two-phase flows currently or in past > or any available code et cetera) on how to address this issue. > There is an application in the code gallery [3] and two example programs [4,5] on two-phase flow problems and multiple others, e.g. step-22, step-35, step-57, that deal with flow problems. These should serve as a goog starting point. Do you have any specific problems? Best, Daniel [1] https://journals.ub.uni-heidelberg.de/index.php/ans/article/view/22317 [2] https://www.dealii.org/8.5.0/doxygen/deal.II/classFE__Enriched.html [3] https://dealii.org/developer/doxygen/deal.II/code_gallery_two_phase_flow.html [4] https://www.dealii.org/8.5.0/doxygen/deal.II/step_21.html [4] https://www.dealii.org/8.5.0/doxygen/deal.II/step_43.html -- 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.
