[Gmsh] Hydrocyclone mesh

[Christophe Geuzaine]

Hi Yasser - You cannot; instead, define two physical groups (surfaces): one for the inlet, one for the wall. This will tag the surface elements with different ids, and you can use that information in your solver to distinguish between both.

If you think about it, that's really what the mathematics of the problem require you to do; nodes are just a byproduct of how you discretize/interpolate your fields.

Christophe

On 20 Jan 2013, at 17:00, yassser yasnood <yasnood at hotmail.com> wrote:

> Dear Sir,
>  
> I have created a mesh using the powerful tool (Gmsh),,
> But I am facing some problem in the mesh data file
>  
> if you open the picture in the attachment you will see the orange face representing the inlet
> the blue face represent the wall,,
>  
> as you can see there is a common line between the two surfaces..
> the nodes located on that line (purble line in the attached image) it will be dealt as follwos:
>  
> 1.  As Inlet node 
> 2.  As wall node
>  
> how can I force gmsh to not repeate the nodes in the inlet face to be again on the wall face
>  
>  
> I hope you understand my question
>  
> Best Regards
> Yaser
> <hydroASK.jpg>_______________________________________________
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-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine