This node is a variant of the Diffuse Surface (Surface-to-Surface Radiation interface) node with a surface emissivity equal to zero. Diffuse mirror surfaces are common as approximations of a surface that is well insulated on one side and for which convection effects can be neglected on the opposite (radiating) side. It resembles a mirror that absorbs all irradiation and then radiates it back in all directions. The node adds radiosity shape function for each spectral band to its selection and uses it as surface radiosity.
This section is available when temperature-dependent material properties are used. The default Temperature is
User defined. When additional physics interfaces are added to the model, the temperature variables defined by these physics interfaces can also be selected from the list. The
Common model input option corresponds to the
minput.T variable, set to 293.15 [K] by default) and all temperature variables from the physics interfaces included in the model. To edit the
minput.T variable, click the
Go to Source button (
), and in the
Common Model Inputs node under
Global Definitions, set a value for the
Temperature in the
Expression for remaining selection section.
