[Gmsh] second order elements postprocessing

andycapo at virgilio.it andycapo at virgilio.it
Mon Oct 8 10:50:11 CEST 2018


> Il 6 ottobre 2018 alle 15.53 Christophe Geuzaine <cgeuzaine at uliege.be> ha scritto:
> 
> > On 3 Oct 2018, at 11:22, andycapo at virgilio.it wrote:
> > 
> > Dear gmsh authors,
> > 
> > I'm trying to post-process the results of a code-aster simulation (essentially the "skin" of circular columns TRIA6 elements).
> > 
> > The results file is in med format, and gmsh is 4.0.2.
> > 
> > If I open the file I can see
> > 
> > *   the curved surfaces if I plot the mesh (correct)
> > 
> > *   but in the post processing, the mesh is "linear" (I would expect 2nd order results)
> 
> -> Choose "Adapt visualization grid" in the view option + select the max recursion level/target error (error < 0 forces refinement).
> 

Thank you Christophe, the option reconstructs the geometry. Is the reconstruction purely geometric, or does reconstruct also the fields based on high order shape functions (in this simulation I used 6-nodes triangles, so the reconstruction may be performed with quadratic shape functions, accounting for the internal nodes)?
Thank you
A.

> > Thanks in advance
> > 
> > A.
> > 
> > <mesh.PNG><post.PNG>_______________________________________________
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> > http://onelab.info/mailman/listinfo/gmsh
> 
>> Prof. Christophe Geuzaine
> University of Liege, Electrical Engineering and Computer Science
> http://www.montefiore.ulg.ac.be/~geuzaine
> 
> Free software: http://gmsh.info | http://getdp.info | http://onelab.info
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