Rémi Gérard-Marzan

What I suspect happened is that mesh quality does not affect the way Ansys computes the blackbody radiative flux density in W/m². However, once Ansys retrieves the actual area of the considered surface to compute its "Emitted Radiation" output, if the mesh is too coarse then Ansys retrieves an incorrect area value, and thus that means the radiative flux in W ends up being muddled by that error.