Symmetry

This node provides a boundary condition for symmetry boundaries. This boundary condition is similar to a Thermal Insulation condition, and it means that there is no heat flux across the boundary.

Location in User Interface

Context menus
Heat Transfer in Solids>Symmetry
Heat Transfer in Fluids>Symmetry

Ribbon

Physics Tab with interface as Heat Transfer in Solids or Heat Transfer in Fluids selected:
Boundaries>interface>Symmetry