code_saturne User's Forum

Hello,

As you can see in the listing file attached, I have a sort of warning "Incoming flow detained for x outlet faces on 4500".
I want to mention that I did another simulation having the same settings but I put a higher time step and less iterations and I didn't get this warning again. The results are pretty close so I can't figure if this is just some sort of warning or it really affects the results in a final(as you can see the warning appears after aprox 30k iterations out of 40k).
Attached you will find the compile.log, preprocessor, setup and listing files and I would appreciate if you could tell me what cause it.
I am using version 5.0 for Windows.

And another question, in the Reynolds formula: Re=UD/mu, which velocity does code_Saturne consider when it comes to turbulence, the axial velocity or the magnitude=sqrt(axial^2+tangential^2+radial^2)?

Best regards,
Robert

Hello,

If the number of faces on which you have the issue does not increase and stays stable, your computation is probably OK. If it is very high or increases, this may be a prelude to divergence... Postprocessing can help you decide if your computation seems OK here.

As for the turbulence formula, I have not checked, but it should be independent from the orientation, so in vector/magnitude form.

Regards,

Yvan