code_saturne User's Forum

Hi Yvan, I have stopped the computation because the calculation stuck at time step 100 and no output under RESU => postprocessing was created. Just the .0001 files. I wanted the solver to display each 100 steps in the logfiles and create an output each 1000 steps. It seem that there is some kind of ...

Hi Yvan, a good example is the laptop I used to test the calculation with CS 5.0.4. The specs were: CPU: Intel Core i5-4210U (Dualcore at 1.70 Ghz) Ram: 8 Gb DDR3 I ran a calculation with 250.000 time steps, a step size of 5e-7 s (variable), CFL <= 0.4. It took a week to finish. This laptop is total...

Hi Yvan,

the simulation runs. But a little slow for a 16 core AMD Ryzen 9 processor. I will keep you informed.

Kind regards,
Christopher

Hi Yvan, I guess it was because I used some too old files. I created a new case and now it begins to run. Is it correct that I cannot use more than 16 cores for calculation? Or is it possible to increase this number? If I use 16 cores the calculation stops at the "Starting calculation" sta...

Hi Yvan, I made it. CS 7.1 is running. However, I didn't see anything in the Job Run window after starting the calculation??? I opened up the old .xml from CS 5.x and tried to run it in CS 7.1. There is no error message. The cursor just shows the little loading circle and the Job Run remains empty. ...

Dear Yvan, I tried to install the master branch (v7.1) and re-run the simulation that already worked in v5. However, I am stuck within the installation from git. By running the automatic installation script "install_saturne.py" I get the message "FileNotFoundError: [Errno 2] No such f...

Hello, thank you all for your fantastic help. It is highly appreciated. After tpa's adivice to use the older version V5, I ran the simulation and I am satisfied with its results. Besides what is running in a specific version, I wanted to add, that the results from 5.0 (160 m/s, 1,24e5 Pa) represents...

Hello, that is interesting. tpa, the simulation result looks pretty good. I also tried smaller time steps. However, it did not work in code_saturne 5.3? Even if I use your XML with variable time stepping. It is astonishing, that it works properly in previous versions. Yvan, do you think it will work...

Hello,

here is the latest XML file. The mesh file is too large (12,5 MB) for upload. But I did no major changes to the mesh. So you could simply use the one I uploaded in my first post.

Best regards,
Christopher

Hello again, Is it possible that during the initialization the thermodynamic variables are not initialized correctly? I have attached a picture. Every time I set a value for pressure and temperature the icon turns green and in the context menu it shows the correct value. However, if I switch to anot...