[marcbest]

hello everbody,

I have a question concerning radiation simulations. I want to simulate Sandia Flame D with radiation. around the flame there should be no cover. so it is an open space i.e. openWall. should i use zeroGradient or MarshakRadiation for this?

openWall
{
type zeroGradient;
}
or

openWall
{
type MarshakRadiation;
T T;
emissivity 0; (= no emissivity)
value uniform 0;
}

what must I use at streaming in- and outlets? I'm asking because in the bouyantSimpleRadiationFoam/hotRadiationRoom case there are only walls and neither open patches nor in/outlets...

Thanks in advance

Marc

[marcbest]

here you can see the G-file if this helps
and wall should be the "open" wall

[Germilly]

Hello marcbest,

Have you found a solution for your problem?
I think I'm facing with the same problem.

I have posted a question in the following thread:

Understanding the Marshak boundary condition (radiation)

can you please help me?

Best regards
GB