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Which file is read in restart for velocity and pressure?

Posted: Wed Apr 14, 2021 3:50 pm
by Tsubasa
Hello,

Now I am wondering which files are read for velocity and pressure when we set restart calculation.
I mean that when we select "check point" in GUI, which files of velocity and pressure are refererred in restart calculation?

In future I will use these files for inverse problem, so I want to know this.

Best regards,
Tusbasa

Re: Which file is read in restart for velocity and pressure?

Posted: Thu Apr 15, 2021 2:42 pm
by Luciano Garelli
Hello,

Did you check the user guide?

In section 3.9.3.7 Variables saved to allow calculation restarts, you have a detailed description of the saved files in the checkpoint directory and also the variables saved in each file.

Regards,
Luciano

Re: Which file is read in restart for velocity and pressure?

Posted: Sun May 02, 2021 5:51 pm
by Tsubasa
Hello,

As you said, I can find the description for my question.

Let me check just in case.
As far as I understand in Section 3.9.3.7,
"main" file contains variables" value of last time step.

This means, if I need all variables' value at every time step for inverse problem, do I have to use variables' value (such as pressure velocity) in "listing" or "run_solver.log"?

For inverse problem, I will use my code and need variables' value at every time step.

Best regards,
Tsubasa

Re: Which file is read in restart for velocity and pressure?

Posted: Sun May 02, 2021 10:52 pm
by Yvan Fournier
Hello,

If you need values over the whole domain at every time step, I recommend you look at i-situ methods. Writing values at each time step has a high impact on performance, and will fill up your storage very quickly.

Regards,

Yvan

Re: Which file is read in restart for velocity and pressure?

Posted: Mon May 03, 2021 7:40 am
by Tsubasa
Hello,

Do you mean "in-situ method"? or "i-situ method"?

Best regards,
Tsubasa

Re: Which file is read in restart for velocity and pressure?

Posted: Mon May 03, 2021 9:57 am
by Yvan Fournier
Hello,

Sorry for the typo.

"In-situ" methods.

Best regards,

Yvan

Re: Which file is read in restart for velocity and pressure?

Posted: Mon May 03, 2021 11:01 am
by Tsubasa
Hello,

If I need only variables' value of average flow fileld at the las step, where can I get them (velocity and pressure)?

Best regards,
Tsubasa

Re: Which file is read in restart for velocity and pressure?

Posted: Tue May 04, 2021 10:05 pm
by Yvan Fournier
Hello,

In this case, the best is to activate time moments (in postprocessing) for velocity and pressure. They should then appear in the checkpoint/auxiliary.csc file.

Best regards,

Yvan