[Gmsh] higher order elements

[=?windows-1252?Q?Jean-Fran=8D=E7ois_Remacle?=]

Onur Bakir a écrit :
> Hi,
> I want to make use of meshes with higher order elements (more than 2) 
> in an electromagnetic solver that we are creating. How can I use the 
> nodes gmsh is generating, in order to interpolate the points on the 
> surface of a geometry. I mean, which interpolation functions (also 
> called shaping functions, I think) are conforming to these nodes? They 
> are all on the actual surface, right? And, one last question: Upto 
> which order the mesher is stable?
>  
Hello Onur,

All this stuff is very "under development".

Gmsh provides an output up to ordrer 5.  Incomplete Serendip elements 
seems to work fine,
we did some high order FEM using that and it seems to be ok. The nodes 
are equidistributed
in the parametric space of the curves.

Gmsh does NOT verify (yet) the positivity of the mappings. I did some 
things for triangles
but it is not yet complete.

All this will be improved when we'll get inputs - bugs - suuggestions 
from the users community.

Regards,

JF Remacle


> Thank you,
> Onur
>  
> -------------------------------------------
> Onur Bakir
> Research Asistant
> EECS, Radiation Labaratory
> University of Michigan
> -------------------------------------------
>  
> ------------------------------------------------------------------------
>
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-- 
--------------
Prof. Jean-François Remacle
Department of Civil Engineering and
Center for Systems Engineering and Applied Mechanics 
Université catholique de Louvain, Belgium 
Tel : +32 10 472082 
Fax : +32 10 472210