[Gmsh] Could not orient surface normal ?

Christophe Geuzaine cgeuzaine at ulg.ac.be
Sun Nov 15 15:19:45 CET 2015


> On 11 Nov 2015, at 10:53, Aleksejs Fomins <aleksejs.fomins at lspr.ch> wrote:
> 
> Dear GMSH,
> 
> I have a model for a cavity simulation necessary for my PhD.
> 
> 2D mesh works fine, 3D mesh throws a bunch of warnings like
> 
>  Warning : Converged for i=7 j=5 (err=1.81843e-08 iter=2) BUT xyz error = 12.5473 in point (-1.604927e+01,-5.104927e+01,4.445920e+01) on surface 123
> 
> and produces a completely rubbish mesh. I attach the geometry and the full error log.
> 

The geometry seems wrong: there are overlapping curves (orphaned, colored in orange in the attached picture).


> Any advice would be appreciated.
> 
> Kind regards,
> Aleksejs Fomins
> <cavity-rectangular-rev-1400.geo><error.txt>_______________________________________________
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine

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