Hi,
I am very interested in this myself. I posted a similar question in November.
Any ideas?
Best regards
Martin
Von: gmsh [mailto:[email protected]] Im Auftrag von
Deloison, Dominique
Gesendet: Freitag, 24. Februar 2017 09:44
An: [email protected]
Betreff: [Gmsh] Meshing a cube with HEX-dominated elements or prisms and 2
different numbers of elements on 2 opposite sides
Hi,
Is it possible to mesh a cube (hexs or prims with 2 different numbers of
elements on 2 opposite sides, like displayed on this picture (ABAQUS mesh swept
algorithm)?
This is to create a transition zone between two hex-meshed zones of different
densities. Lateral faces have to be quads to respect the connected hex meshes.
Preferably I would like to avoid Extrude in order to be able to mesh an
imported BREP geometry with possibly non planar faces.
Many thanks,
Dominique Deloison
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--- Begin Message ---
Hello again,
I got the desired result using an Extrusion:
cid:[email protected]
However, using Extrusion greatly disagrees with my modelling approach, since I
create all required geometry (points, lines, surfaces, volumes) already in
advance, before calling gmsh. Afterwards, I want to mesh the model with gmsh
and in a third step assign the created mesh to the existing geometry. Is there
any way to create a (semi-)structured mesh using volumes already defined in my
geo-file?
Best regards
Martin
Von: gmsh [mailto:[email protected]] Im Auftrag von
[email protected]
Gesendet: Dienstag, 15. November 2016 17:23
An: [email protected]
Betreff: [Gmsh] Hex-Mesh problem
Hello,
I experience difficulties creating a pure or at least Hex-dominant mesh for the
model in the text file. I tried a lot of solver options but even with the
frontal algorithm and AllHexas subdivision algorithm I cannot get a proper
mesh. Volume elements are only created for the left and right volume while the
boundary surfaces of the middle volume are meshed but no volumes are created
and different errors are thrown by gmsh, e.g.
“Cannot use frontal 3D algorithm with quadrangles on boundary” for frontal 3D
Is there any way that I am missing? Do I somehow have to mesh the middle volume
first?
Best regards
Martin Rädel
————————————————————————
Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR)
German Aerospace Center
Institute of Composite Structures and Adaptive Systems | Structural Mechanics |
Lilienthalplatz 7 | 38108 Braunschweig | Germany
Dipl.-Ing. Martin Rädel
Telephone +49 (0)531 295-2048 | Telefax +49 (0)531 295-2232 |
[email protected]<mailto:[email protected]>
www.DLR.de<http://www.dlr.de/>
geometry_minimal_3D_Extrusion.geo
Description: geometry_minimal_3D_Extrusion.geo
geometry_minimal_3D.geo
Description: geometry_minimal_3D.geo
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