Search found 45 matches

by So_nuc
Thu Feb 13, 2020 8:15 pm
Forum: code_saturne usage
Topic: Writing of histories in parallel mode (IFS calculation)
Replies: 2
Views: 1764

Re: Writing of histories in parallel mode (IFS calculation)

Hello Yvan,

Thank you for your reply. Sorry I have indeed forgotten to write that I am using V6.0.1. I have enclosed a test case.

Thank you in advance.

Best regards,

So_nuc
by So_nuc
Wed Feb 12, 2020 6:17 pm
Forum: code_saturne usage
Topic: Writing of histories in parallel mode (IFS calculation)
Replies: 2
Views: 1764

Writing of histories in parallel mode (IFS calculation)

Hello, Within an IFS calculation, I have remarked that displacement histories of the structures are not necessarily good written in parallel mode. I performed some tests and I remarked that the good data are written within certain processes and spurious ones within other processes. Therefore I creat...
by So_nuc
Fri Jan 17, 2020 5:27 pm
Forum: code_saturne usage
Topic: Running parallel calculation from Terminal
Replies: 8
Views: 3764

Re: Running parallel calculation from Terminal

Hello again,

I join you here the MPI rank IDs within the same geometry for 3 and 4 processors. In the last case, it seems that the geometry is not symmetrically cut which may explain the problem.

Thank you in advance for your attention.

Best regards,

So_nuc
by So_nuc
Fri Jan 17, 2020 4:42 pm
Forum: code_saturne usage
Topic: Running parallel calculation from Terminal
Replies: 8
Views: 3764

Re: Running parallel calculation from Terminal

Hello Yvan, Thank you for this feedback. Actually, using the same source files, I get no problem with a geometry in parallel mode whatever the number of processors is. But with another geometry, it works in parallel mode until a certain number and above this numer, I get an error of boundary conditi...
by So_nuc
Fri Jan 17, 2020 2:48 pm
Forum: code_saturne usage
Topic: Implementation of the ALE Module in Code_Saturne
Replies: 10
Views: 5078

Re: Implementation of the ALE Module in Code_Saturne

Hello Yvan,

Thank you for this fast feedback. In fact, I also tried with the CDO variant (iale = 2) but the fluid forces seem to not be taken into account. By calculating the fluid force by myself, I get a SIGFPE error which I don't get when iale = 1.

Best regards,

So_nuc
by So_nuc
Fri Jan 17, 2020 11:33 am
Forum: code_saturne usage
Topic: Implementation of the ALE Module in Code_Saturne
Replies: 10
Views: 5078

Re: Implementation of the ALE Module in Code_Saturne

Hello Yvan, After testing some cases with different structure frequency with an explicit/implicit internal coupling (on the same test case which has been transmitted here), I have remarked that the displacement of the structure gets an increasing / decreasing amplitude which has to be theoretically ...
by So_nuc
Wed Jan 15, 2020 11:43 am
Forum: code_saturne usage
Topic: Implementation of the ALE Module in Code_Saturne
Replies: 10
Views: 5078

Re: Implementation of the ALE Module in Code_Saturne

Hello Yvan,

Thank you for the debugging. It works well and produce better results on that test case compared with the ALE of the version 5.0.10: the physical results were indeed impacted by some spurious loss/gain of energy.

Best regards,

So_nuc
by So_nuc
Thu Jan 09, 2020 8:40 am
Forum: code_saturne usage
Topic: Implementation of the ALE Module in Code_Saturne
Replies: 10
Views: 5078

Re: Implementation of the ALE Module in Code_Saturne

Hello Yvan,

Thank you for these explanations. I give you hereby the test case for debugging. The absolute path to access the mesh has to be added in DATA/cs_user_scripts.py .

Thank you in advance.

Best regards,

So_nuc
by So_nuc
Tue Jan 07, 2020 4:17 pm
Forum: code_saturne usage
Topic: Implementation of the ALE Module in Code_Saturne
Replies: 10
Views: 5078

Re: Implementation of the ALE Module in Code_Saturne

Hello Yvan, Thank you for this feedback. Then I have tried with the v6.0.1 but I get a SIGSEGV error which I don't get by compiling with the v5.0.10. The error seems to come from the cs_user_fluid_structure_interaction.f90 file when I try to impose idfstr(ifac) = 1 in the usstr1 subroutine. Have you...
by So_nuc
Mon Jan 06, 2020 5:07 pm
Forum: code_saturne usage
Topic: Implementation of the ALE Module in Code_Saturne
Replies: 10
Views: 5078

Implementation of the ALE Module in Code_Saturne

Hello, I am using the ALE Module of Code_Saturne v.5.0.10. I took a look on the navstv.f90 file and it seems that the internal mass flux denoted "imasfl" is updated twice but this update does not seem to be taken into account by the routine predvv. Moreover a FIXME comment appears at line ...