Using the Rosseland correction requires a modification of Dirichlet temperature boundary conditions along the walls. Note that the correction only makes sense on the parts of the boundary along which you want to prescribe a temperature. No special action is needed along walls where a heat flux is imposed.
Important: Do not apply the Rosseland correction on the boundaries of a domain in which an internal radiation sub-task is defined.
All of the inputs for the radiative correction are entered within the thermal boundary condition specification.
Thermal boundary conditions
Along a wall where you want to impose a temperature, select Rosseland Correction instead of Temperature imposed.
Rosseland Correction
Specify the wall temperature
(described in Theory).
Modification of imposed temperature
Specify the refraction index (
in Equation 25–3 and Equation 25–5).
Modification of refraction index
Specify the average absorption coefficient (
in Equation 25–5).
Modification of average absorption
Specify the Fourier conductivity (
in Equation 25–3 and Equation 25–5).
Modification of Fourier conductivity
Specify the relative emissivity of the wall (
in Equation 25–5).
Modification of relative emissivity