[Gmsh] high order meshes and interior elements

[Christophe Prud'homme]

Jean-Francois

> Is that possible to get with Gmsh a straight edge high order mesh in
> interior elements (not sharing a face with the boundary) ?
>
> normally, this is the usual behavior.

hum it is not the case unless I have a bug in my code

> it seems that interior elements are really curved, is there a reason why ?
> is the option Mesh.SmoothInternalEdges = 1; helping with this ?
>
>
> this is new stuff indeed. curving elements that have edges or faces on a
> curved
> boundary cannot be sufficient for ensure the validity of the mesh. Some
> internal
> edges/faces may have to be curved as well. I have commited something today
> that
> force the mesh to be valid everywhere.

I will check that asap

> with straight edge interior elements we could then affine
> transformations which would be much cheaper computationnally, no ?
>
>
> our experience in high order methods tell us that this extra cost is not
> dramatic. In our computations, we assume all elements to be curvilinear.
> We are going to submit a paper in SISC next week about efficient
> assembly of high order finite element operators.
Is it possible to get a primer ? ;)


thank you for your answer ?

Best regards
C.
> JFR
>
>
> Best regards
> C.
> --
> Debian Developer - member of Debian Science
> http://wiki.debian.org/DebianScience
> Prof. at Univ. Grenoble in Applied Math.
> http://ljk.imag.fr/membres/Christophe.Prudhomme/
>
> _______________________________________________
> gmsh mailing list
> gmsh at geuz.org
> http://www.geuz.org/mailman/listinfo/gmsh
>
> ------------------------------------------------------------------
> Prof. Jean-Francois Remacle
> Universite catholique de Louvain (UCL)
> Ecole Polytechnique de Louvain (EPL) - Louvain School of Engineering
> Institute of Mechanics, Materials and Civil Engineering (iMMC)
> Center for Systems Engineering and Applied Mechanics (CESAME)
> Tel : +32-10-472352 -- Mobile : +32-473-909930
>
>
>
>
>
>



-- 
Debian Developer - member of Debian Science
http://wiki.debian.org/DebianScience
Prof. at Univ. Grenoble in Applied Math.
http://ljk.imag.fr/membres/Christophe.Prudhomme/