[Gmsh] Small dimension objects from CAD software - mesh generation problem
Jean-François Remacle
jean-francois.remacle at uclouvain.be
Tue Mar 19 17:19:18 CET 2013
Le 18 mars 2013 à 18:25, Matija Mraovic <matija.mraovic at guest.arnes.si> a écrit :
> Hi,
>
>
> There are two files:
>
> -plane.geo is just a definition file included in extruded.geo
>
> -extruded.geo is the 3d geometry i would like to mesh.
>
>
> The "extruded.geo" file is the right one, "plane.geo" is just a planar geometry, which i am then extruding to
>
> certain z-value (height) in extruded.geo. It seems to me you were making 2d mesh, i'm trying to make 3d (extruded.geo).
>
>
> The plane under the electrodes is substrate (plastic, foil...) on which electrodes are actually printed. I want to calculate
>
> how the capacity of capacitor changes when substrate is changed. So basically it should be as near as possible to electrodes,
>
> but not on the same plane as electrodes. Now, I have placed it at -1e-6 on z-axis and electrodes are at 0.0. Then I extrude
>
> electrodes up to 0.01mm, and substrate down to -0.06mm. I also extrude the large bottom plane so it forms a big cube - this is the
>
> surrounding air.
>
The 3D geometry is incorrect. The volume is not closed. Here is a correct version of it.
Note that the mesh sizes you define produce a 3D mesh of about 9 million elements…
JFR
>
> Thank you!
>
> BR
>
> mm
>
>
> 18.03.2013 17:15, je Jean-François Remacle napisal
>
>> Hi,
>> I do not know if it is really wanted, but your mesh size cl3 is very small, which makes
>> the plane under the electrodes extremely finely meshed. I have changed it ti 1 mm.
>> Second, the plane that is drawn on the electrodes is the same as the one where the electrodes are.
>> Is it normal ? If not, I have created 3 surfaces and this is what I get
>> <isitok2.png><isitok.png>
>>
>>
>> Le 18 mars 2013 à 11:02, Matija Mraovic <matija.mraovic at guest.arnes.si> a écrit :
>>
>> ------------------------------------------------------------------
>> Prof. Jean-Francois Remacle
>> Universite catholique de Louvain (UCL)
>> Ecole Polytechnique de Louvain (EPL) - Louvain School of Engineering
>> Institute of Mechanics, Materials and Civil Engineering (iMMC)
>> Center for Systems Engineering and Applied Mechanics (CESAME)
>> Tel : +32-10-472352 -- Mobile : +32-473-909930
>>
>>
>>
>
>
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------------------------------------------------------------------
Prof. Jean-Francois Remacle
Universite catholique de Louvain (UCL)
Ecole Polytechnique de Louvain (EPL) - Louvain School of Engineering
Institute of Mechanics, Materials and Civil Engineering (iMMC)
Center for Systems Engineering and Applied Mechanics (CESAME)
Tel : +32-10-472352 -- Mobile : +32-473-909930
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