Hello everyone I am one of the new users of the Ansys fluent,

I am trying to solve a case that includes radiation, convection, and conduction. I am trying to use the DO model. After defining the radiation the program says the fact that I should define the absorption and scattering coefficient of steel. I know they are 0 for air but is it the case also for steel?

If not how can I calculate these coefficients?

Thank you in advance.