Search found 4186 matches

by Yvan Fournier
Thu Feb 06, 2025 10:50 am
Forum: code_saturne usage
Topic: Problem with HTLES Hybrid Model
Replies: 3
Views: 4408

Re: Problem with HTLES Hybrid Model

Hello,

I'll try to remember to check with Jean-François to confirm, but yes, I think you cluld try the same sort of approach here.

Best regards,

Yvan
by Yvan Fournier
Tue Feb 04, 2025 3:15 pm
Forum: code_saturne usage
Topic: Problem with HTLES Hybrid Model
Replies: 3
Views: 4408

Re: Problem with HTLES Hybrid Model

Hello, I just talked with the colleague who implemented the model, and the short answer is "yes". Apparently, tha model needs both an estimation of the cell span (which can be approximated using a cubic root of the volume), and a stricter test of the longest span, for near wall cells with ...
by Yvan Fournier
Tue Feb 04, 2025 1:16 pm
Forum: Installation issues
Topic: Troubles with "Salome-CFD extension"
Replies: 19
Views: 86909

Re: Troubles with "Salome-CFD extension"

Hello,

Could you post the error you have (in case the line numbers are not exactly the same anymore) and the matching Makefile, so I can check which tools were actually detected correctly in the configuration stage ?

Best regards,

Yvan
by Yvan Fournier
Tue Feb 04, 2025 1:09 pm
Forum: code_saturne usage
Topic: URANS in code_saturne
Replies: 4
Views: 2149

Re: URANS in code_saturne

Hello, If the actual solution is steady, yes, in theory pseudo steady should converge to the same solution as unsteady (though you may have small differences as the pressure-velocity coupling involves the Rhie&Chow filter which introduces a time step term). If the physical solution has low frequ...
by Yvan Fournier
Thu Jan 30, 2025 2:41 am
Forum: code_saturne usage
Topic: MPI fail on multiprocess run
Replies: 3
Views: 581

Re: MPI fail on multiprocess run

Hello,

Don't forget the usual troubleshooting recommendations, as described in the BPG's (https://www.code-saturne.org/documentat ... oting.html).

What do the run_solver.log or error* files say ?

Regards,

Yvan
by Yvan Fournier
Tue Jan 21, 2025 1:49 am
Forum: code_saturne usage
Topic: Clipping of the Reynolds-stress tensor
Replies: 10
Views: 10219

Re: Clipping of the Reynolds-stress tensor

Hello, Sorry, I am not sure on which cases this was observed tested (this is based on recent work by colleagues). We use multiblock meshes on some cases, and other types of hybrid meshes on others, so i! am not sure about this either (though multiblock based is usually preferred frequent for "h...
by Yvan Fournier
Tue Jan 21, 2025 1:44 am
Forum: code_saturne usage
Topic: Error while launching cs under MacOS
Replies: 10
Views: 224880

Re: Error while launching cs under MacOS

Hello, Are the libraries which appear as "not found" present at the listed paths (library search path or cache issue), or not present at all (path consistency issue) ? What is strange is that @rpath should not appear as such, but @rpath@ should be replaced by the actual install path... Bes...
by Yvan Fournier
Tue Jan 21, 2025 1:40 am
Forum: code_saturne usage
Topic: GPU Acceleration
Replies: 1
Views: 770

Re: GPU Acceleration

Hello, This is still work in progress, and usable on some code paths, not on others. But is it working on quite a few basic cases. There is still room for many optimizations, and in any case you need a large enough mesh for it to be worthwhile, but this will be further improved by v9.0 release in Ju...
by Yvan Fournier
Tue Jan 21, 2025 1:32 am
Forum: code_saturne usage
Topic: parabolic inlet
Replies: 4
Views: 1176

Re: parabolic inlet

Hello,

In the GUI, you also have a second option for the flow direction: either normal to the inlet, a given vector direction, or a second user function. So you can combine the direction and norm definitions to get the desired velocity profile.

Best regards,

Yvan
by Yvan Fournier
Sun Jan 19, 2025 1:24 pm
Forum: code_saturne usage
Topic: GUI issue : local mesh directory
Replies: 1
Views: 890

Re: GUI issue : local mesh directory

Hello,

Yes, I could be useful to display the directory when using an absolute path.

In any case, in this situation, I usually remove the mesh from the ist and add it back, with the correct path.

Regards,

Yvan