About the Heat Transfer Interfaces
The Heat Transfer Module includes the following interfaces:
They are used to compute the temperature field, the radiative intensity field, and the relative humidity field.
The multiphysics interfaces also compute other physical fields like velocity, pressure, or electromagnetic fields, depending on the available COMSOL products. See Multiphysics Interfaces.
The main dependent variable is the temperature, T.
The various kinds of Heat Transfer interfaces and the thermal multiphysics couplings can be used for modeling heat transfer by conduction, convection, or radiation, as well as conjugate heat transfer, evaporation, and electromagnetic heating.