The Phase Transformation Latent Heat multiphysics coupling () is used to add the latent heat that is produced by a phase transformation physics interface as a heat source term in the heat equation of the coupled Heat Transfer in Solids interface. When the coupling is used, no separate Heat Source feature in the Heat Transfer interface is required.

The Label is the default multiphysics coupling feature name.

The Name is used primarily as a scope prefix for variables defined by the coupling node. Refer to such variables in expressions using the pattern <name>.<variable_name>. In order to distinguish between variables belonging to different coupling nodes or physics interfaces, the name string must be unique. Only letters, numbers, and underscores (_) are permitted in the Name field. The first character must be a letter.

The default Name (for the first multiphysics coupling feature in the model) is lht1.

This section defines the physics involved in the multiphysics coupling. The Metal Phase Transformation and Heat Transfer lists include all applicable physics interfaces.