Symmetry
This node provides a boundary condition for symmetry boundaries. This boundary condition is similar to an Insulation condition, and it means that there is no moisture flux across the boundary. It can be applied on exterior boundaries only.
When this node is added as a subnode of a Liquid Water (Hygroscopic Porous Medium) or a Moist Air (Hygroscopic Porous Medium) node, it only constrains the liquid capillary flux or the vapor diffusive flux respectively.
Location in User Interface
Context Menus
Moisture Transport in Air > Symmetry
Moisture Transport in Building Materials > Symmetry
Equilibrium Moisture Transport in Porous Media > Symmetry
Nonequilibrium Moisture Transport in Porous Media > Hygroscopic Porous Medium > Liquid Water > Symmetry
Nonequilibrium Moisture Transport in Porous Media > Hygroscopic Porous Medium > Moist Air > Symmetry
Ribbon
Physics tab with interface as Moisture Transport in Air, or any version of the Moisture Transport interface selected:
Boundaries > interface > Symmetry
Physics tab with Hygroscopic Porous Medium > Liquid Water or Hygroscopic Porous Medium > Moist Air selected in the model tree:
Attributes > Symmetry