[Gmsh] Very thin elements on surface (slivers)

Alexander Tismer alexander.tismer at ihs.uni-stuttgart.de
Wed Oct 28 22:01:14 CET 2015


Hello,

I try to mesh a volume from an existing STL file. I always end with very 
thin elements located at the blade surface in the volume. After spending 
some hours on the gmsh and tetgen manual I spotted that these elements 
are probably slivers.

How can I prevent the creation of such elements?

Please find attached the GEO file with its STL file and two example 
pictures showing the badly shaped slivers.

Many thanks
Alex

-- 
Alexander Tismer

Institut für Strömungsmechanik
und Hydraulische Strömungsmaschinen
Universität Stuttgart
Pfaffenwaldring 10
70550 Stuttgart

Tel.:   +49 (0) 711 / 685 63007
Fax:    +49 (0) 711 / 685 63255
eMail: alexander.tismer at ihs.uni-stuttgart.de
http://www.ihs.uni-stuttgart.de
-------------- next part --------------
A non-text attachment was scrubbed...
Name: gmsh.geo
Type: application/vnd.dynageo
Size: 90 bytes
Desc: not available
URL: <http://www.geuz.org/pipermail/gmsh/attachments/20151028/e32062a8/attachment-0001.geo>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: sliver_0.png
Type: image/png
Size: 28444 bytes
Desc: not available
URL: <http://www.geuz.org/pipermail/gmsh/attachments/20151028/e32062a8/attachment-0002.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: sliver_1.png
Type: image/png
Size: 43346 bytes
Desc: not available
URL: <http://www.geuz.org/pipermail/gmsh/attachments/20151028/e32062a8/attachment-0003.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: transferToTetgen0.stl
Type: application/vnd.ms-pki.stl
Size: 5583258 bytes
Desc: not available
URL: <http://www.geuz.org/pipermail/gmsh/attachments/20151028/e32062a8/attachment-0001.stl>