27.10.2015, 13:10, "Zenker, Dr. Matthias" <[email protected]>:
> Hi,
>
> the mesh in the picture in the post 
> http://forum.freecadweb.org/viewtopic.php?f=18&t=10846&sid=2d71e90e5bc6cb707fb96796681a84ca&start=10#p103981
>  looks conformal, but if I open it in gmsh, it looks loke a single body. In 
> the picture in the post 
> http://forum.freecadweb.org/viewtopic.php?f=18&t=10846&sid=2d71e90e5bc6cb707fb96796681a84ca&start=20#p103993
>  is not conformal at the interface.
> By "conformal" I mean that the triangles and nodes on both touching faces are 
> the same. Only then you can have heat or current flow between bodies. 
>
> Matthias
Yes,  basically agree on your conception of "conformal". Thanks for that 
clarification. It was expected and helped. Others speak of "conforming"; 
"conformity" (like gmsh man) one reads. Guess I goes all down to the very same, 
does not it?
But then there is extra info such as region, or boundary by. There the question 
is: If there is a standardized format to be be qualified as "conformal"? This 
mean basically ready for solving. How would such a mesh preparation state be 
called? Not at all?
Well and then there was found a definition, where the claim to have a patent on 
http://www.sonnetsoftware.com/support/help-current-version/help_topics/what_is_conformal_mesh_.htm
conformal meshing: "Conformal meshing is a technique which can dramatically 
reduce the memory and time required for analysis"
Could you please help to sort those terms in? tia.


>If the OCC functions for connecting/sewing faces work only for flat faces as 
>suggested in the thread you cite, they are next to useless since curved faces 
>occur in 3D.
It is rumor...

It seems that at the moment only Salomé can sew such faces - but AFAIK Salomé 
uses OCC also, so there must be a way...

Would be a help, if some gmsh experts could drop a commentary on:
(As I see there are several ways of representing and  controlling multiregion 
(zones,bodies), thus importing and exporting signaling. 
-Given the cited command line where along do the ready-to-solve data flow? And 
what is the typical problem about it all, if there is?
>gmsh face_com_step.step -2 -format unv -o compound_of_faces.unv -optimize 
>-string "Geometry.OCCSewFaces=1;" -string "Mesh.CharacteristicLengthFactor = 
>1.5;"
-What is about "Names" of such "Groups" for the (external) solver to identify? 
How are they introduced?
-And yes, what is about bespoken unflat interboundary faces, can gmsh handle it 
multiregionally or can it not?
Thanks in advance

 

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