Search found 3180 matches

by Yvan Fournier
Sat Jan 16, 2021 8:25 pm
Forum: code_saturne usage
Topic: [Saturne 6.0.6] Particles are accelerated by head loss
Replies: 9
Views: 56

Re: [Saturne 6.0.6] Particles are accelerated by head loss

Hello, As I am not an expert in that part of the code, I was perhaps not very clear, but the issue is one of numerics, not physics: In the Eulerian part of the code, head losses are handled by adding an "equivalent" external pressure force. The Lagrangian model uses some elements from the ...
by Yvan Fournier
Thu Jan 14, 2021 1:20 pm
Forum: code_saturne usage
Topic: Head loss on surface
Replies: 2
Views: 12

Re: Head loss on surface

Hello,

No, I do not think it is possible with the current code. So the best solution is probably to apply the head loss to a thin layer of cells (which assumes your mesh provides for this).

Best regards,

Yvan
by Yvan Fournier
Thu Jan 14, 2021 1:17 pm
Forum: code_saturne usage
Topic: cgns issue with v6.1.0
Replies: 7
Views: 49

Re: cgns issue with v6.1.0

Hello,

Do you use cs_user_scripts.py ? The required option could be removed in a user setting, so that could be an explanation.

Otherwise, could you post the XML files for each case ?

Regards,

Yvan
by Yvan Fournier
Thu Jan 14, 2021 1:14 pm
Forum: Syrthes related questions
Topic: [MANJARO]Building trouble : linkage problem on syrthesppfunc
Replies: 2
Views: 18

Re: [MANJARO]Building trouble : linkage problem on syrthesppfunc

Hello,

Yes, I had a similar issue on Arch Linux, due to the more recent and picky tools.

In setup.ini, you can add linker options to work around this:
specific_lib= -Wl,--allow-multiple-definition
specific_option= -Wl,--allow-multiple-definition
Best regards,

Yvan
by Yvan Fournier
Thu Jan 14, 2021 1:01 pm
Forum: Syrthes related questions
Topic: Syrthes CFD installation
Replies: 16
Views: 965

Re: Syrthes CFD installation

Hello,

Was code_saturne and PLE installed with MPI support ? This is necessary for the Syrthes coupling.

Regards,

Yvan
by Yvan Fournier
Mon Jan 11, 2021 11:06 pm
Forum: code_saturne usage
Topic: cgns issue with v6.1.0
Replies: 7
Views: 49

Re: cgns issue with v6.1.0

Hello,

Could you post the "listing" (run_solver.log) and setup.log file for each case ? Once the file is converted by the preprocessor, there should be no difference. So if the rest of the preprocessor.log is the same, I would expect no issue.

Best regards,

Yvan
by Yvan Fournier
Mon Jan 11, 2021 11:03 pm
Forum: Syrthes related questions
Topic: Syrthes CFD installation
Replies: 16
Views: 965

Re: Syrthes CFD installation

Hello,

Is the installation more complete now ?

Regards,

Yvan
by Yvan Fournier
Mon Jan 11, 2021 4:54 pm
Forum: Syrthes related questions
Topic: Syrthes CFD installation
Replies: 16
Views: 965

Re: Syrthes CFD installation

Hello,

It seems mpicc is not found, so you may have a configuration error (in incorrect mpicc path in setup.ini), or are missing an MPI installation.

Regards,

Yvan
by Yvan Fournier
Sun Jan 10, 2021 5:39 pm
Forum: code_saturne usage
Topic: cgns issue with v6.1.0
Replies: 7
Views: 49

Re: cgns issue with v6.1.0

Hello,

This seems to be a CGNS installation, and possibly version issue (CGNS may be installed with or without HDF5 support, explaining the different default).

Could you post a "preprocessor.log" for each case ?

Regards,

Yvan
by Yvan Fournier
Sun Jan 10, 2021 5:38 pm
Forum: code_saturne usage
Topic: [Saturne 6.0.6] Particles are accelerated by head loss
Replies: 9
Views: 56

Re: [Saturne 6.0.6] Particles are accelerated by head loss

Hello, What Martin means is that when using head losses in code_saturne, an external force is always added, but the Lagrangian module does not take it into account in a consistent manner, which explains the issue you have. This is more a refactorization issue in the code. If you are trying to reach ...