[Gmsh] Connecting structured to unstructured meshed volumes in 3D

[Octavio Castillo Reyes]

Prof. Ghristophhe, thank you for your tip!

Right now I have tried it but I have obtained the following errors:

Error   : No elements in region 2
Info    : Done meshing 3D (0.005192 s)
Info    : Optimizing 3D mesh...
Info    : Optimizing volume 2
Info    : Done optimizing 3D mesh (0.00019 s)
Info    : 537 vertices 1236 elements
Error   : ------------------------------
Error   : Mesh generation error summary
Error   :   104 warnings
Error   :   105 errors
Error   : Check the full log for details
Error   : ------------------------------

In any case, this idea is very good. In spite of this, I would like to know
if it is possible to replicate this case only with tetrahedra, in this way
I can avoid using different base functions in my finite element code.

Best regards

O.

On Thu, Mar 5, 2020 at 9:19 AM Christophe Geuzaine <cgeuzaine at uliege.be>
wrote:

>
>
> > On 3 Mar 2020, at 13:45, Octavio Castillo Reyes <
> ocastilloreyes at gmail.com> wrote:
> >
> > Dear gmsh developers,
> >
> > I would like to know if it is possible build a tetrahedral mesh with
> following features:
> >
> > - structured tetrahedral  elements on boundaries
> > - unstructured tetrahedral elements inside the domain
> >
> > Could you give some tips/ideas to build this kind of mesh (if possible).
> >
>
> I will be done automatically (with a pyramid layer to connect both).
> Here's an example:
>
>
> https://gitlab.onelab.info/gmsh/gmsh/-/blob/master/benchmarks/extrude/hybrid_pyramids.geo
>
> Christophe
>
>
>
> > Best regards
> >
> > O.
> >
> > _______________________________________________
> > gmsh mailing list
> > gmsh at onelab.info
> > http://onelab.info/mailman/listinfo/gmsh
>
> —
> Prof. Christophe Geuzaine
> University of Liege, Electrical Engineering and Computer Science
> http://www.montefiore.ulg.ac.be/~geuzaine
>
>
>
>
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