On 07 Feb 2014, at 19:10, Christophe Geuzaine <[email protected]> wrote:
> > On 06 Feb 2014, at 10:05, Alexander Tismer > <[email protected]> wrote: > >> Hello, >> >> I try to create a boundary layer around a blade of a hydraulic turbine with >> gmsh. >> >> According to the paper “Gmsh: a three-dimensional finite element mesh >> generator with built-in pre- and post-processing facilities” (page 18-19) >> gmsh is able to create such a layer from a set of source surfaces. For me it >> is not really clear how to do it. >> Has anybody an example geo file? >> Furthermore I want to do that with my own written subclasses of GEdge, GFace >> and GVertex using gmsh as a library. Is this also possible? Currently I >> created a 3-d mesh of my channel using my own written classes successfully. >> However I’m in trouble with the boundary layer creation around the blade, >> hub and shroud. >> > > Dear Alexander, > > The feature mentioned in the paper can be accessed by simply using the > "Extrude" command (see the attached example). With the attachment:
sphere_boundary_layer.geo
Description: Binary data
> This creates actual geometrical entities for the layer. A more "classical" > boundary layer mesh generator (which does not create new entities, but simply > extrudes a layer inside the volume) is also under development, but it's not > documented yet. > > Christophe > >> Any help is really appreciated. >> >> Many Thanks >> Alex >> _______________________________________________ >> gmsh mailing list >> [email protected] >> http://www.geuz.org/mailman/listinfo/gmsh > > -- > Prof. Christophe Geuzaine > University of Liege, Electrical Engineering and Computer Science > http://www.montefiore.ulg.ac.be/~geuzaine > > > -- Prof. Christophe Geuzaine University of Liege, Electrical Engineering and Computer Science http://www.montefiore.ulg.ac.be/~geuzaine
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