Hi Shawn,
I think the best solution would be to define Surface 13 as a hole in Surface 18.
Regards,
Dave
--
David Colignon, Ph.D.
Collaborateur Logistique du F.R.S.-FNRS
CÉCI - Consortium des Équipements de Calcul Intensif
ACE - Applied & Computational Electromagnetics
Sart-Tilman B28
Université de Liège
4000 Liège - BELGIQUE
Tél: +32 (0)4 366 37 32
Fax: +32 (0)4 366 29 10
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Shawn Fostner wrote:
Hi all,
A problem I thought I'd gotten around a while ago, but I guess not.
The geometry in question is a rectangular box (surface), with a second
box immediately adjacent it (mostly empty space, but defines my meshing
region). Now immediately above the surface there is a small region which
I have been using to define a metal piece, it is entirely outside but
just touching the surface (in the ideal case). Usually I use the metal
as a void when I define the region above the surface (plus other
objects, irrelevant here).
The problem is that if I don't leave a gap (even if tiny) between the
metal and the surface then the 3d mesh invariably fails, but if I do
leave a gap then it throws off the field calculation dramatically
(because of small meshing volumes at the corner of that region). I can
understand there would be a problem with a void that overlaps the
boundary of a volume, or it might be because of the adjacent volume, but...
Now I guess I could deliberately eliminate any mesh elements in that gap
between the void and surface, not sure how though. Otherwise, is there
anything else I can try? Any suggestions would be great.
I've included a version of the geo file, ignore the extra structure.
Currently there is a 0.01 unit gap between surface and metal (the object
between surfaces 12 and 13.
Thanks!
Shawn
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