[bhh]

Hi,

I am running buoyantPimpleFoam with a built-in boundary condition for heat transfer based on heat transfer coefficient (aphaWall) and outside temperature (Tinf) like this:

window
{
type wallHeatTransfer;
alphaWall uniform 1.5;
Tinf uniform 263;
value uniform 293.;
}

This work perfectly.

Now I want to impose a fixed heat flux ( eg 50 W/sq m) on a patch (radiator). How do I do this in the solver? Is there a built-in BC condition for this. I know that the solver demands boundary conditions for temperature but the enthalpy is used for solving the energy equation.

Can anybody give me a hint?

Regards
Bjorn