[Gmsh] not multiply connected

[Christophe Geuzaine]

Wern Lennart wrote:
> Dear Gmsh-user
> 
> I am a new user of gmsh and I need some assistance.
> 
> I have made a very simple geometry with two volumes that I can mesh 
> without any problems, see attached file.
> 
> I want to use my mesh in OpenFOAM and I therfor convert it. In the 
> converting log I get text like the below:
> 
> It seems like the two volumes are not connected. How can I connect them? 
> Please help !!!


The way you generated the volumes, they are indeed not connected (you
extruded the surfaces by 2 different heights).

Attached is a version of your geometry that connects the volumes.




> 
> ------------------------------
> checkCoords : points 1142 and 492 with coordinates:(250 343.75 70) and 
> (250 343.75 70)
>  are relatively close to each other. This might be correct in case of 
> e.g. baffles.
> checkCoords : points 491 and 1141 with coordinates:(250 343.75 80) and 
> (250 343.75 80)
>  are relatively close to each other. This might be correct in case of 
> e.g. baffles.
> checkCoords : points 490 and 1140 with coordinates:(250 343.75 90) and 
> (250 343.75 90)
>  are relatively close to each other. This might be correct in case of 
> e.g. baffles.
> checkCoords : points 488 and 192 with coordinates:(250 375 20) and (250 
> 375 20)
>  are relatively close to each other. This might be correct in case of 
> e.g. baffles.
> 
> patch9  146     156     ok (not multiply connected)
> patch11 145     155     ok (not multiply connected)
> patch33 146     156     ok (not multiply connected)
> patch55 145     155     ok (not multiply connected)
> ------------------------------
> 
> 
> Regards,
> 
> Lennart Wern
> SMHI
> Swedish Meteorological and Hydrological Institute
> SE-601 76 NORRKÖPING
> Sweden
> 
> Visiting address: Folkborgsvägen 1
> Email: lennart.wern at smhi.se
> Phone: +46 11 495 81 49
> Fax: +46 11 495 82 50
> 
> 
> 
> 
> <<test_1.geo>>
> 
> 
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> 
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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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