[Gmsh] voids adjacent to a volume edge
David Colignon
David.Colignon at ulg.ac.be
Fri Oct 30 09:40:05 CET 2009
Hi Shawn,
can you send us your last .geo file(s) ?
Regards,
Dave
--
David Colignon, Ph.D.
Collaborateur Logistique du F.R.S.-FNRS
CÉCI - Consortium des Équipements de Calcul Intensif
ACE - Applied & Computational Electromagnetics
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Université de Liège
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Shawn Fostner wrote:
> Related to this problem, I'm still trying to find a solution, is it
> possible to use physical groups to force the mesh? If I set up certain
> surfaces as groups it no longer crashes, but only meshes 2d, 3d still
> doesn't work generally, or one of the 2 regions 3d meshes, but not both.
>
> I've tried overlapping the meshes, defining holes everywhere I can think
> of, but in the end, having a void in one region directly ajacent to the
> other just seems to make both very unhappy.
>
> Shawn
>
> Shawn Fostner wrote:
>> Thanks David,
>>
>> I tried that, but now it meshes the 2d surfaces fine, but complains
>> that "Error : No tetrahedra in region 3" (which is what corresponds
>> to the lower rectangle. Probably because its effectively open now,
>> even though its still effectively bounded on the top by volume 116.
>> The issue seems to be the overlapping boundary between volume 3 and
>> 116, which is where surface 13 (the bottom of the void) and 18 (the
>> top of the "surface" or volume 3) intersect. Not sure how to get
>> around that, how do you force it to allow you to close the bottom
>> region, but at the same time use the boundary as a void in the upper
>> region.
>>
>> Shawn
>>
>> David Colignon wrote:
>>> Hi Shawn,
>>>
>>> I think the best solution would be to define Surface 13 as a hole in
>>> Surface 18.
>>>
>>> Regards,
>>>
>>> Dave
>>>
>>
>>
>
>