coupled natural convection(LES) and radiation

[bachlinh]

Hello guys,
I'm attempting to model the coupled between natural convection using LES (classical) and radiation in CS5. But, i cant make it run. I got some warnings in listing file. Can anyone show me what i should do for solve it ?
Thank you,

[Luciano Garelli]

Hello,

The second warning in the listing file is telling you that your "discretization scheme is not compatible" because the source terms coming from "module rayonnement" will not be computed as second order, as needed for a LES computation.

I think that you have to change the options ( THETSS, ISSO2T), setting ISSO2T =1 : second-order and THETSS= 0.5 : extrapolated in n+1/2. Check the doxygen documentation.

Regards,

Luciano

[bachlinh]

Hello,
Thank you for your answer.
I can't find where to change these options in GUI, so do you know the find in which i can find these options to change ?
Regards,

[Yvan Fournier]

Hello,

Luciano mentioned the Doxygen documentation. You can also check the pdf user manual (in case this part of the documentation has not been moved to Doxygen yet; I did not check in this case, but this is a good habit).

Regards,

Yvan

[bachlinh]

Thank you,