Hello,
I asked a colleague, who told me trying to force 2nd order this way is risky and might ne behave well, and that a PhD student might be looking into this soon, but have no more details.
I'll keep you updated if I get more info on what can be done.
Best regards,
Yvan
Search found 4102 matches
- Fri May 24, 2024 9:50 pm
- Forum: code_saturne usage
- Topic: Second-Order Temporal Discretization Except for Turbulence Model Equations
- Replies: 5
- Views: 167
- Fri May 24, 2024 9:47 pm
- Forum: code_saturne usage
- Topic: Steady-Compressible flow
- Replies: 6
- Views: 3115
Re: Steady-Compressible flow
Hello, Yes, your setting seems OK. I am not sure the pseudo-steady algorithm matches that on your reference, as I am not familiar with the book. It would be interesting to compare. In our case, the code simply adjusts the time step in each cell so as to try to target a CFL of 1. The reference time s...
- Sun May 19, 2024 2:43 pm
- Forum: code_saturne usage
- Topic: model validation
- Replies: 5
- Views: 91
Re: model validation
Hello, If you get different results each time, there may be some memory corruption, which indicates a bug... How large is your test case ? If it is not too big, I would be interested in running it under a tool such as Valgrind or a build using AdressSanitizer to check for a bug in code_saturne... If...
- Sat May 18, 2024 12:33 am
- Forum: code_saturne usage
- Topic: Second-Order Temporal Discretization Except for Turbulence Model Equations
- Replies: 5
- Views: 167
Re: Second-Order Temporal Discretization Except for Turbulence Model Equations
Hello,
Any detailed feedback on this is very welcome
Best regards,
Yvan
Any detailed feedback on this is very welcome
Best regards,
Yvan
- Sat May 18, 2024 12:32 am
- Forum: code_saturne usage
- Topic: Cannot use TVD schemes
- Replies: 9
- Views: 133
Re: Cannot use TVD schemes
Hello, Yes, I would have been interested in testing this for some cases to improve robustness, but was stuck at this point, and am already too busy with other parts of the code to realistically expect to work on this in the near future. But helping others do it might add a bit of leverage. Best rega...
- Fri May 17, 2024 1:16 pm
- Forum: code_saturne usage
- Topic: model validation
- Replies: 5
- Views: 91
Re: model validation
Hello, What do you mean by "calculation gets corrupted" ? - Does the code crash on an invalid memory access error ? - Or are the results bad/unexpected ? If the code runs but provides incorrect results, you may have a mesh quality issue. Notably, if cells inserted in the viscous layer have...
- Fri May 17, 2024 12:57 pm
- Forum: code_saturne usage
- Topic: Second-Order Temporal Discretization Except for Turbulence Model Equations
- Replies: 5
- Views: 167
Re: Second-Order Temporal Discretization Except for Turbulence Model Equations
Hello, I know the handling of "per variable" time scheme is a complicated mess, with some options that have been available for years but never really tested, and others which may be missing but would make sense. I am not too well versed in this part of the code, but will ask some colleague...
- Fri May 17, 2024 12:51 pm
- Forum: code_saturne usage
- Topic: Cannot use TVD schemes
- Replies: 9
- Views: 133
Re: Cannot use TVD schemes
Hello, I'm not sure what would be best here. I'm not fond of working on a component by component basis for vectors, which should be invariant wrt the frame of reference. I'll need to discuss this with colleagues who participated in the implementation of the scalar schemes. Obviously, since the code ...
- Fri May 17, 2024 12:47 pm
- Forum: Installation issues
- Topic: Problem installing Scotch - automatic installation
- Replies: 4
- Views: 82
Re: Problem installing Scotch - automatic installation
Hello,
The error is line 1957:
configure error: cannot find PyQt5 support (>= 5.0) or PyQt4 support (>= 4.5), Graphical User Interface cannot be installed.
You need to install the prerequisites or disable the GUI.
Regards,
Yvan
The error is line 1957:
configure error: cannot find PyQt5 support (>= 5.0) or PyQt4 support (>= 4.5), Graphical User Interface cannot be installed.
You need to install the prerequisites or disable the GUI.
Regards,
Yvan
- Thu May 16, 2024 8:19 pm
- Forum: Installation issues
- Topic: Problem installing Scotch - automatic installation
- Replies: 4
- Views: 82
Re: Problem installing Scotch - automatic installation
Hello, I would guess you do not have MPI on.your machine. It is strongly recommended to install it with code_saturne. Scotch is optional, and useful only if you have MPI. Also check these recommendations : https://github.com/code-saturne/code_saturne/wiki/Pre-installation:-Linux-distribution-package...