Symmetry (Radiation in Participating Media and Radiation in Absorbing-Scattering Media Interfaces)
This node provides a condition for symmetry boundaries. When the Radiation discretization method is P1 approximation, it corresponds to a no radiative flux condition across the boundary.
When the Radiation discretization method is Discrete ordinates method, it constrains radiative intensities of symmetrical directions to be equal. In that case, the Symmetry feature is restricted to flat boundaries which normal is aligned with the main axes of the component:
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For 3D components, boundaries of normal aligned with the x-axis, y-axis, or z-axis can be selected.
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For 2D components, boundaries of normal aligned with the x-axis or y-axis can be selected.
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For 2D axisymmetric components, only boundaries of normal aligned with the z-axis can be selected.
Radiative Heat Transfer in a Utility Boiler: Application Library path Heat_Transfer_Module/Thermal_Radiation/boiler
Location in User Interface
Context Menus
Radiation in Participating Media > Symmetry
Radiation in Absorbing-Scattering Media > Symmetry
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Physics tab with Radiation in Participating Media or Radiation in Absorbing-Scattering Media selected:
Boundaries > Symmetry