Search found 2816 matches

by Yvan Fournier
Fri Jan 24, 2020 1:53 pm
Forum: Code_Saturne usage
Topic: Divergence in k-omega cases with inflation layers
Replies: 12
Views: 694

Re: Divergence in k-omega cases with inflation layers

Hello, Yes, I downloaded your test case but did not have time to check it yet. Adding the extrusion automatically is tricky, as we need to automate the required thickness (not so hard) but ensure modifying the mesh after th main preprocessing step does not interfere with restarts (at least in the ca...
by Yvan Fournier
Wed Jan 22, 2020 4:53 pm
Forum: Installation issues
Topic: Problems with mpi on Ubuntu 18.04
Replies: 4
Views: 23

Re: Problems with mpi on Ubuntu 18.04

Hello, No, code_saturne opens mesh_input files in read-only mode (and produces mesh_output files if they are modified). I once had a file corruption issue, due to the filesystem itself (GPFS, benchmark case file left untouched for months, led to failure, and after half a day of debugging I realized ...
by Yvan Fournier
Fri Jan 17, 2020 10:45 pm
Forum: Code_Saturne usage
Topic: What are "recompute_cocg" and "inc" in gradient function?
Replies: 2
Views: 45

Re: What are "recompute_cocg" and "inc" in gradient function?

Hello, Those arguments are used when solving by increments in the general solving process (described in the theory documentation). If you are using those functions in regular user code (for example for postprocessing), you can do as you should find in the Doxygen examples, with recompute_cocg = 1 an...
by Yvan Fournier
Fri Jan 17, 2020 10:43 pm
Forum: Code_Saturne usage
Topic: Running parallel calculation from Terminal
Replies: 9
Views: 266

Re: Running parallel calculation from Terminal

Hello,

Do you have user source files or not for this case ? If you do, the error might be in those files, so can you post them ? Otherwise, there may be a bug, so the test case would be good.

Regards,

Yvan
by Yvan Fournier
Fri Jan 17, 2020 2:29 pm
Forum: Code_Saturne usage
Topic: Implementation of the ALE Module in Code_Saturne
Replies: 10
Views: 550

Re: Implementation of the ALE Module in Code_Saturne

Hello,

I have not worked much with ALE myself, so cannot say whether we have observed tis before or not.

I'll suggest to colleagues who worked on this to take a look.

Do you have this both with the CDO and classical variants ?

Best regards,

Yvan
by Yvan Fournier
Fri Jan 17, 2020 9:05 am
Forum: Installation issues
Topic: Problems with mpi on Ubuntu 18.04
Replies: 4
Views: 23

Re: Problems with mpi on Ubuntu 18.04

Hello, I am not too sure about which tools may help chech your Open MPI installation, but in any case, if you have an error in libopenpal using MPICH, it means you are mixing Open MPI and MPICH (either compiling with one and running with the other, ore something more complex). You can use ldd on the...
by Yvan Fournier
Wed Jan 15, 2020 6:32 pm
Forum: Code_Saturne usage
Topic: Implementation of the ALE Module in Code_Saturne
Replies: 10
Views: 550

Re: Implementation of the ALE Module in Code_Saturne

Hello,

That's good news. Thanks for the feedback.

Best regards,

Yvan
by Yvan Fournier
Tue Jan 14, 2020 4:56 pm
Forum: Code_Saturne usage
Topic: Implementation of the ALE Module in Code_Saturne
Replies: 10
Views: 550

Re: Implementation of the ALE Module in Code_Saturne

Hello, I fixed the bug in the master and v6.0 branches, so if you pull the version from GitHub and update, things should work now. A simpler temporary solution may be simply to copy the attached file either in your code_saturne v6.0.1 source tree (replacing src/base/strdef.f90 and reinstalling), or ...
by Yvan Fournier
Fri Jan 10, 2020 3:02 pm
Forum: Code_Saturne usage
Topic: Divergence in k-omega cases with inflation layers
Replies: 12
Views: 694

Re: Divergence in k-omega cases with inflation layers

Hello, Is the case the same as the one you posted ? I can check. Otherwise, in the mean time, you can always add "or no_group[]" to the wall faces selection criteria, or add a separate BC with 'no_group[]' so as to work around the undefined BC's error and see if at least the divergence is avoided. B...
by Yvan Fournier
Thu Jan 09, 2020 9:41 pm
Forum: Code_Saturne usage
Topic: Divergence in k-omega cases with inflation layers
Replies: 12
Views: 694

Re: Divergence in k-omega cases with inflation layers

Hello,

Interior faces with boundary groups are ignored, as BC checks only loop on boundary faces.

By the coordinates of the face in error or the ERROR.ensight (or .med or .cgns) output, is the first face causing problems on the outlet ?

Best regards,

Yvan