When a Moisture Flow () multiphysics interface is added from the Chemical Species Transport > Moisture Flow branch  of the Model Wizard or Add Physics windows, the Single-Phase Flow interface Laminar Flow and a Moisture Transport in air interface are added to the Model Builder.

In addition, the Multiphysics node is added, which includes the Moisture Flow multiphysics coupling feature.

Although the Moisture Flow interface can be found under the Chemical Species Transport branch, it has been implemented in the Heat Transfer Module and made available for the Porous Media Flow Module. Therefore, detailed information is available in the Heat Transfer Module User’s Guide.