code_saturne User's Forum

Hello,

As you know most of CFD softwares have options to set the residuals for equations, for example in fluent you can set the residuals of each velocity components or continuity equation that when the solver reaches that value, it will go to the next iteration like below:


Now the question is how can we set these monitors in code_saturne? What are the default values of residuals in code_saturne?

Regards,
Mohammad

Hello,

There is no automatic stapping criteria in code_saturne, as tuning such a criteria is quite tricky and possibly and model + options+mesh dependent, but you could use the values output automatically in residuals.csv to define such a criteria (coding it in cs_user_extra_operations.c for example). I do not remember in which file those values are handled, so to access them, I recommend checking the code to see how resilduals.csv is written, and adapt that in cs_user_extra_operations.c.

Best regards,

Yvan