Settings for Physics Interfaces and Coupling Features

When physics interfaces are added using the predefined couplings — for example, — specific settings are included with the physics interfaces and the coupling features.

However, if physics interfaces are added one at a time, followed by the coupling features, these modified settings are not automatically included.

For example, if single and interfaces are added, COMSOL Multiphysics adds an empty node. You can choose from the following available coupling features: and , but the modified settings are not included.


	Coupling features are available from the context menu (right-click the Multiphysics node) or from the Physics toolbar, Multiphysics menu.

Table 8-6: Modified Settings for a Thermoelectric Effect Interface
Physics Interface	Modified Settings
Electric Currents	No changes.
Heat Transfer in Solids	No changes.
Thermoelectric Effect	The Domain Selection is the same as that of the participating physics interfaces. The Boundary Selection is the same as the exterior and interior boundaries of the Domain Selection of the participating physics interfaces. But both a thermal and an electrical model need to be active on the boundaries for the coupling to be applicable. Add for example a Thin Layer node under the Heat Transfer interface and an Electric Shielding node under the Electric Currents interface to make it applicable. The corresponding Electric Currents and Heat Transfer in Solids interfaces are preselected in the Coupled Interfaces section of the Thermoelectric Effect node’s Settings window.
Electromagnetic Heating	The Domain Selection is the same as that of the participating physics interfaces. The Boundary Selection contains all the boundaries of the participating interfaces. The corresponding Electric Currents and Heat Transfer in Solids interfaces are preselected in the Coupled Interfaces section of the Thermoelectric Effect node’s Settings window.