code_saturne User's Forum

CS version 2.2.1

I have some meshes that I want to join in CS so I import all of them and I set all the joining faces but it's not work. I try with all the parameters for fraction and plane.
So I try it in CS 2.0.5 and it's work.
I import the preprocessor_ouput mesh and I put it in the version 2.2.1 by using "Use existing mesh input". I check and it works. But when I want to import the boundaries conditions it's not possible.

In conclusion, the two main problem : joining meshes and importing boundaries in version 2.2.1

I forgot something.

After lauching the calculation I must use the core partitionning : Morton curve (box)

Hello,

Depending on the size of meshes, could you post your meshes on the forum or on a FTP?
About boundary conditions, what do you mean by "you can't import BCs"?

Regards,
JF

Hello,

Could you at least post some "minor" details such as your "listing" file for the case that fails, as per the Forum recommendations ?

Regards,

Yvan

hello,
the problem which i have with the 2.2.2 version is defined below (from a listing file).
i used the same meshes withe c_s 2.0.5 and it works correctly,
best regards:

**********************************************************************
Première face avec une mauvaise définition de conditions aux limites
(sur 640)
a une condition aux limites de type 0, un centre (-2.86894, -2.78705, 0.5)

/home/bekhti/programmes/cs_2.2.2/installer/code_saturne-2.2.2/src/base/cs_boundary_conditions.c:408: Erreur fatale.

Certaines définitions de conditions aux limites sont incomplètes
ou incorrectes :

Pour plus de détails, vérifiez la fin du "listing" de calcul,
ou visualisez le post traitement dédié aux erreurs.
***************************************************************************************

Hello,

Did you visualize the error region post-processing output ? The difference is probably due to slightly different handling of tolerances, which means small faces merged in one version might not be merged in another version. To avoid this, you may try to slightly increase the joining tolerance factor for joining.

I do not know what your mesh is, but I could guess that you have two curved surfaces (such as cylinders) with different mesh sizes. If this is the case, unmerged faces are equivalent to a small "ridge", for which you could apply wall boundary conditions.

In any case, use visualization (both of mesh groups in quality/preprocessing mode and of boundary condition errors) to assist your understanding of the problem and the choice of a good solution.

Regards,

Yvan

hello,
thank you mr. fournier, it work now with a small increase of a joining factor.
my best thanks.