Mesh Refinement Routines

Hello.

i) Which refinement routine is used for local (adaptive) mesh refinements? I haven't found anything in the documentation.

ii) Is there a simple way to include an alternative routine like the one of Maubach in "Local Bisection Refinement for N-Simplicial Grids Generated by Reflection"?

iii) Are there already different refinement routines included?

Kind regards,
Johannes

Hi Johannes,

regarding (i), the doc-string of the Mesh class states

 |  Refine(...)
 |      Refine(self: ngsolve.comp.Mesh, mark_surface_elements: bool = False, onlyonce: bool = False) -> None
 |
 |      Local mesh refinement based on marked elements, uses element-bisection algorithm

regarding (iii) In the  Navier-Stokes workshop materials from the third NGSolve User Meeting, there is a script wich implements barycentric mesh refinement in python. This may be a good starting point to implement your own mesh refinement routine.

Best wishes
Henry

Hi, thanks for your answer. Is the bisection routine somewhere specified, that is, does the program use longest-edge bisection or the bisection routine of Maubach/Traxler?

Kind regards,
Johannes