[Gmsh] Air volume arround a 3D model.

[Christophe Geuzaine]

> On 24 Jul 2017, at 13:59, Javier Sánchez Buezas <javier.sanchez at sidisel.com> wrote:
> 
> Hello all.
> 
> 
> 
> I'm trying to simulate the ElectroMagnetic behaviour of a Microstrip antenna on a PCB board. In order to make a simple start I tried to simulate a simple strip of cooper, and placing it inside an spherical box of air.
> 
> The problem is that the mesh doesn't generates correctlly. If I try with the Delauny algorithm I get the "Self intersecting surface mesh" error. If I use the Frontal algorithm no 3d mesh is generated for the air.
> 
> 
> 
> I created the model by defining the outter surface and a surface loop of all the outter surfaces of the board and then making a volume with thos 2 arguments ( Volume(n) = {Spherical surface, surface loop};)
> 
> Attached is the .geo file.
> 
> 
> 
> Any idea of how can I make this right?
> 

Your surface mesh is not conformal; there is a zero volume area between the top green and orange volumes.




> Greetings.
> 
> Javier.
> 
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine

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