Different results for wallHeatFlux
 

Hello everyone,

I'm using buoyantSimpleFoam to calculate both convective and radiative heat transfer between two concentric tubes.

For the radiation, I used the FvDom and the viewFactor models, and they deliver not only different values for the radiative heat flux but also for the convective heat flux. Does anybody know why? I mean, shouldn't the radiation model have no influence on the convection? (for both cases I'm using kEpsilon as turbulence model)

P.s. the convective heat flux in case of FvDOM is more realistic.