Use this multiphysics coupling () to account for a Peltier heat source or sink on boundaries where electric and thermal shells are defined. This modeling is achieved by adding PsJs contribution to the heat flux. The corresponding heat equation in an immobile solid reads:

A Boundary Thermoelectric Effect node also contributes the term −dsσsSs∇tT to the current density, which is then defined as:

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 btee.

From the Selection list, choose the boundaries where boundary thermoelectric effect is defined. Only boundaries where both Thin Layer and Electric Shielding are active can be selected.

The weak contribution in only added when Layer type in Thin Layer is set to Conductive. If Layer type is set to either Resistive or General, the weak contribution evaluates to 0.

The default Seebeck coefficient S (SI unit: V/K) is taken From material. For User defined enter other values or expressions.

Select the Heat transfer interface associated to the temperature dependent variable. Select the Electromagnetic interface associated to the electric potential dependent variable.

when any of the following interface is added together with Heat Transfer in Solids (or another version of the Heat Transfer Interface):
Electric Currents
Electric Currents, Shells
Magnetic Field Formulation
Magnetic Fields
Magnetic and Electric Fields
Rotating Machinery, Magnetic