I use Extrude command with layers to generate boundary-layer unstructured mesh.
The recombine command is not used, so the mesh remains as unstructured. It
appears that if the periodic surfaces are generated by using extrude command
with layers specified, the msh (tetral mesh) data will not have the information
of the slave and master nodes. I need to export the mesh data to a existing CFD
software, and need to know the node connection between the Master and Slave
periodic surfaces. The existing CFD software does not care if the mesh appears
to be structured or unstructured. It only cares if the mesh is tetrahedron
mesh. The following attached lines generate a box with structured tetrahedron
mesh. The mesh data does give the Slave and Master surface entity numbers, but
it does not give the nodes associated with them. Is there a way I can output
the slave and master node information when periodic surfaces are generated by
using extrude command with layers specified?
Thanks a lot for your help.
Junhui
>>>>>>>>>>>> box.geo >>>>>>>>>>>>>>>>
lc = 0.1;
Point(1) = {0.0, 0.0, 0.0, lc};
line_extrude[] = Extrude {1.0, 0.0, 0.0} {Point{1}; Layers{10};};
surface_extrude[] = Extrude {0.0, 1.0, 0.0} {Line{line_extrude[1]};
Layers{10};};
Volume_extrude[] = Extrude {0.0, 0.0, 1.0} {Surface{surface_extrude[1]};
Layers{10};};
surfMaster = surface_extrude[1];
surfSlave = Volume_extrude[0];
boundMaster[] = Boundary{Surface{surfMaster};};
boundSlave[] = Boundary{Surface{surfSlave};};
Periodic Surface surfSlave { boundSlave[] } = surfMaster { boundMaster[] };
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