[Gmsh] Gmsh new boundary layer mesh operator

Alexander Tismer alexander.tismer at ihs.uni-stuttgart.de
Tue Mar 31 09:35:43 CEST 2015


Hello,

I write a mesh operator that starts from a surface mesh and adds a 
boundary layer to it (according to this paper 
http://onlinelibrary.wiley.com/doi/10.1002/1097-0207%2820000910/20%2949:1/2%3C193::AID-NME929%3E3.0.CO;2-R/abstract) 
<http://onlinelibrary.wiley.com/doi/10.1002/1097-0207%2820000910/20%2949:1/2%3C193::AID-NME929%3E3.0.CO;2-R/abstract>.

Steps are:
1) create surface mesh
2) calculate normals
3) move old GFaces
4) create elements in boundary layer (green elements)
5) mesh internal GRegion (orange elements)

My algorithm works fine. But if I mesh some bounding surfaces using 
transfinite edges and surfaces there occurs very very flat elements in 
the final internal GRegion.

So my question: does the meshGRegion operator requests any mesh vertex 
reparametrization on its bounding faces of edges if using transfinite stuff?

Please find attached a mesh cut of the final mesh.

Best regards
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

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