Search found 68 matches

by attene
Thu Sep 20, 2018 9:51 am
Forum: code_saturne usage
Topic: Calculation Restart Problems
Replies: 17
Views: 9075

Re: Calculation Restart Problems

Hi everybody, still a question regarding a restart from a job (RESU/YYYYMMdd-hhmm) which was restarted; please forgive the play of words: in practical terms in the folder I am considering (YYYYMMdd-hhmm) there are both a checkpoint and a restart directories. If I want to do a new restart from this ...
by attene
Thu Sep 20, 2018 9:43 am
Forum: code_saturne usage
Topic: Calculation Restart Problems
Replies: 17
Views: 9075

Re: Calculation Restart Problems

Hi everybody, still a question regarding a restart from a job (RESU/YYYYMMdd-hhmm) which was restarted; please forgive the play of words: in practical terms in the folder I am considering (YYYYMMdd-hhmm) there are both a checkpoint and a restart directories. If I want to do a new restart from this j...
by attene
Tue Sep 18, 2018 10:09 am
Forum: code_saturne usage
Topic: Jacobi: error (divergence) solving for Velocity
Replies: 19
Views: 7660

Re: Jacobi: error (divergence) solving for Velocity

Hi Yvan, Thank you for your help! I will try to do that and let you know. just one thing and one question: The last setup.xml file I sent to you refers to a frozen-rotor without joining: In the mesh there are two different fluid cell zone and a conformal interface between them. Can I improve the cal...
by attene
Mon Sep 17, 2018 1:15 pm
Forum: code_saturne usage
Topic: Jacobi: error (divergence) solving for Velocity
Replies: 19
Views: 7660

Re: Jacobi: error (divergence) solving for Velocity

Hi Yvan,

Thank you for your answer!
Looking forward to hearing from you about this!

Meanwhile, do you think I can check anything to find more information regarding this behavior ?

Regards,

FA
by attene
Fri Sep 14, 2018 9:16 am
Forum: code_saturne usage
Topic: Jacobi: error (divergence) solving for Velocity
Replies: 19
Views: 7660

Re: Jacobi: error (divergence) solving for Velocity

Hello, Thank you for your answer. I did not consider any user subroutines in these jobs. What I can also tell you now, is that a restart with 15 more iterations ended without any errors. This happened for the job (exactly same setup of the file I forwarded to you) I mentioned in the post that run in...
by attene
Thu Sep 13, 2018 12:35 pm
Forum: code_saturne usage
Topic: Jacobi: error (divergence) solving for Velocity
Replies: 19
Views: 7660

Jacobi: error (divergence) solving for Velocity

Hello everybody, I am testing (with a small number of iterations for the moment ) my test case, which consists of two cell zones. One zone is a cylindrical domain including a turbine. The flow in the cylinder is solved in the relative frame of motion (frozen rotor). The second cell zone is a tank (r...
by attene
Tue Sep 11, 2018 1:17 pm
Forum: code_saturne usage
Topic: Initializing turbulent flow
Replies: 4
Views: 3759

Re: Initializing turbulent flow

Hi everybody, Maybe I was not clear enough in the past message. I will try to give you more information: I do not know what values to give ( if the best strategy is calculation by formula..) to k and w in the BC (inlet) in order to indirectly prescribe turbulent viscosity ratio and turbulent intensi...
by attene
Mon Sep 10, 2018 5:35 pm
Forum: code_saturne usage
Topic: Calculation Restart Problems
Replies: 17
Views: 9075

Re: Calculation Restart Problems

Hi everybody,

problem solved! I was launching the job from the wrong directory.
The restart was not pointing at the checkpoint directory of the previous calculation.

Regards,

FA
by attene
Mon Sep 10, 2018 9:09 am
Forum: code_saturne usage
Topic: Calculation Restart Problems
Replies: 17
Views: 9075

Re: Calculation Restart Problems

Hi Luciano,

I read about the use of the control file in the user guide. All the main options are listed but I do not have a clear idea of what suits my issue. What does the flush option do?

Regards,

FA
by attene
Fri Sep 07, 2018 4:26 pm
Forum: code_saturne usage
Topic: Calculation Restart Problems
Replies: 17
Views: 9075

Re: Calculation Restart Problems

Hi Luciano,

thanks you for your answer!
I was thinking I might have made a mistake launching the restart: maybe I should have launched it from the checkpoint directory!? I will try doing that and looking at the use of the control file.

Regards,

FA