[Gmsh] Load a partial mesh into Gmsh

[Tibi Chelcea]

This could be an interesting solution, I forgot that multiple
geometries/meshes can be loaded with the "Merge" script command. I could see
problems at the interface between the bottom face of the heatsink and the
pre-meshed component (the elements would be coincidental to the face, but
not part of the face). I'll have to look more into how to rebuild the
geometries (another twist here is that I'm using a system that writes BREP
files for Gmsh, and not using the native modelling capabilities).

Best,
Tibi


On Thu, Jul 14, 2011 at 4:22 AM, Zenker, Dr. Matthias <
Dr.Matthias.Zenker at erbe-med.com> wrote:

>  You may also try to mesh all the rest, load just the mesh (without the
> geometry), merge the geometry for the heat sink and remesh . The only
> problem could indeed be at the interface. Maybe you could try to have the
> interface already meshed, remove volume and interface from the heat sink
> geometry, and rebuild the volume of the heat sink using the meshed
> interface.
> I didn't test it myself, though.
>
> HTH,
>
> Matthias
>
>  ------------------------------
> *Von:* Serban.Georgescu at uk.fujitsu.com [mailto:
> Serban.Georgescu at uk.fujitsu.com]
> *Gesendet:* Donnerstag, 14. Juli 2011 09:05
> *An:* tibich72 at gmail.com
> *Cc:* gmsh at geuz.org
> *Betreff:* Re: [Gmsh] Load a partial mesh into Gmsh
>
>   Hi Tibi,
>
>
>
> How about meshing all the components individually and saving the meshes,
> meshing the heatsink by itself and then  combining all the meshes into the
> final one?
>
> It seems to me that the only difficulty is to match the meshes on the
> interface (hopefully, only one face).
>
>
>
> Regards,
>
> Serban
>
>
>
> *From:* gmsh-bounces at ace20.montefiore.ulg.ac.be [mailto:
> gmsh-bounces at ace20.montefiore.ulg.ac.be] *On Behalf Of *Tibi Chelcea
> *Sent:* 13 July 2011 22:54
> *To:* gmsh at geuz.org
> *Subject:* [Gmsh] Load a partial mesh into Gmsh
>
>
>
> I'm working on a system that simulates a family of components; these
> components are fixed (as in modeled once, and then re-used again and again),
> but the heatsinks attached to them are user-defined. Gmsh takes a long time
> to mesh this system, so I'd like to cut down the time used for meshing. I
> was wondering whether it's possible to use Gmsh as follows:
>
> - Pre-mesh each of the components and save these meshes
>
> - Then, when meshing the entire system (a component + an user-defined
> heatsink), Gmsh loads the mesh for the component, and meshes only the
> heatsink.
>
>
>
> Is this possible to do? I've seen some mentioning of "background mesh" in
> the documentation, but there is very little on that, and it's not clear
> whether it does what I'd like or how to define it.
>
>
> Any hint/help is really appreciated.
>
> Tibi Chelcea
>
>
>
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