Defining Surface-to-surface Radiation Behavior at a Wall

You can define surface-to-surface radiation behavior for any type of wall boundary condition.

Before you begin: In the fluid physics, set the Radiation model must be set to Surface to surface. For more information, see Defining the Fluid Physics of a Flow Simulation.
See Also
Defining a Wall
  1. From the Wall dialog box, set the Surface-to-surface radiation option to On.

    Note: If you select Off, this wall will be transparent to radiation and its surface will not participate in the view factor computation.

  2. Specify the degree of Emissivity, which describes how well heat energy radiates between surfaces. An emissivity of 1 denotes perfect heat transfer, 0 denotes no heat transfer, and values in between can specify the emissivity for a gray-diffuse wall surface.

    You can define emissivity using a uniform value, spatially-varying mapped data, or a JavaScript user subroutine. You can also apply scaling or specify the value using a predefined amplitude.