[Gmsh] transfer physical groups to patches in version 4.3.0

[Marc Belleau]

Thank you ever so much Professor Geuzaine. I had been checking the  
check box Save All Elements for over a month. Unchecking it solved all  
of my problems concerning the transfer of physical surfaces to  
OpenFoam patches. I can now finally concentrate on how to create  
boundary layers using Gmsh.

Kindest regards,

Marc



Christophe Geuzaine <cgeuzaine at uliege.be> a écrit :

>> On 11 Dec 2019, at 22:45, Marc Belleau <marc.belleau at polymtl.ca> wrote:
>>
>>
>> Hi to all
>>
>> I have to use version 2.12.0 in order for gmshToFoam to transform  
>> the physical groups into patches. Because if I use version 4.3.0  
>> and save the mesh in ascii version 2 format including all elements
>
> In the MSH2 format, if you selecting "Save all elements" will  
> discard physical groups.
>
> Just define physical groups for all the entities whose elements  
> should be saved and you should be fine.
>
> (MSH4 does not have that limitation.)
>
> Christophe
>
>
>
>> , gmshToFoam ignores the physical groups and you end up with a  
>> single huge patch by the name of patch0.
>>
>> So I wonder if this is a bug. If so, it is really disppointing  
>> since I would much prefer to use the latest gmsh version.
>>
>> Thanks anyhow
>>
>>
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>
> —
> Prof. Christophe Geuzaine
> University of Liege, Electrical Engineering and Computer Science
> http://www.montefiore.ulg.ac.be/~geuzaine