Hello!
I have a problem related to molecular and turbulent diffusion in Saturn Code.
I work on the model MIL I'm trying to integrated into Saturn. I get results too diffusive.
I constantly try to solve this without success. I'd like to know where imposing a constant coefficient diffusive if possible in Saturn.
Regards,
SAGUEDONG
turbulent diffusion in Code Saturn
Forum rules
Please read the forum usage recommendations before posting.
Please read the forum usage recommendations before posting.
-
Yvan Fournier
- Posts: 4208
- Joined: Mon Feb 20, 2012 3:25 pm
Re: turbulent diffusion in Code Saturn
Hello,
You could use the advanced user subroutines (usvist, in cs_user_physical_properties.f90 in recent versions), but excessive diffusion may also be due to a bad quality mesh, or using an upwind convection scheme (not the case by default, unless the slope test comes into play).
Regards,
Yvan
You could use the advanced user subroutines (usvist, in cs_user_physical_properties.f90 in recent versions), but excessive diffusion may also be due to a bad quality mesh, or using an upwind convection scheme (not the case by default, unless the slope test comes into play).
Regards,
Yvan