[Gmsh] High-Order Curved Boundary Layer Mesh

[Vincent, Peter E]

Dear All,

I am trying to create a 2D mesh around a circle. I would like a boundary layer mesh of quadrilateral elements adjacent to the circle, and then an unstructured triangular mesh elsewhere in the domain.

I have made the attached .geo file, which seems to work fine for linear elements. However, when I switch up to 2nd or 3rd order curved elements I run into problems (see attached images).

Does anyone have any idea what I have done wrong.

I am using the following version of Gmsh:

Info    : Gmsh version   : 2.6.2-svn
Info    : Build OS       : MacOSX
Info    : Build options  : 64Bit Ann Bamg Bfgs Blas(VecLib) Blossom Chaco DIntegration Dlopen Fltk Gmm Jpeg(Fltk) Lapack(VecLib) MathEx Med Mesh Metis Mmg3d Mpeg NativeFileChooser Netgen OneLab OneLabMetamodel OpenCascade OpenGL OptHom PETSc Parser Plugins Png(Fltk) Post RTree SLEPc Salome Solver Tetgen(1.5) Voro3D Zlib
Info    : Build date     : 20130118
Info    : Build host     : Christophes-Mac.local
Info    : Packager       : geuzaine

Cheers

Peter

[cid:65d84fb9-ce51-4ceb-b887-65937e8c499d at imperial.ac.uk]
[cid:e0299949-f321-4575-bf70-aded54ccc096 at imperial.ac.uk]
[cid:edf942fd-8b4c-4f87-9e61-78159f44695b at imperial.ac.uk]
[cid:23a3cbee-0b4d-43df-aa4a-92a4219faf02 at imperial.ac.uk]



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