Thermoelectric Effect
Use the Thermoelectric Effect multiphysics coupling () to account for a Peltier heat source or sink in domains and on boundaries where electrical and thermal models are defined.
In domains, a PJ contribution is added to the heat flux q in the equation for heat transfer in solids:
The term Je = −σST is also added to the current density, which is then defined as:
The contribution to the heat flux affects all boundary conditions where the conductive flux, kT, is involved. In particular the thermal insulation condition becomes (−kT + PJ) ⋅ n = 0 (instead of (−kT) ⋅ n = 0 when thermoelectric effect is not active). See
On boundaries, a PsJ contribution is added to the heat flux q in the equation for heat transfer in shells:
The term Je,s = −σsSstT is also added to the current density, which is then defined as:
Settings
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 tee.
Domain Selection
From the Selection list, choose the domains where thermoelectric effect should be applied. Only domains where both electrical and thermal models are active can be selected.
Boundary Selection
From the Selection list, choose the boundaries where thermoelectric effect should be applied. Only boundaries where both electrical and thermal models are active can be selected.
For the thermal model, you can choose from
any version of the Heat Transfer interface with a Thin Layer, a Thin Film, or a Fracture feature active on the boundaries.
For the electrical model, you can choose from
any version of the Electric Currents interface with an Electric Shielding feature active on the boundaries.
Coupled Interfaces
This section defines the physics involved in the thermoelectric effect multiphysics coupling.
Select the Heat Transfer interface associated to the temperature dependent variable. Select the Electromagnetic interface associated to the electric potential dependent variable.
Thermoelectric Properties
The Seebeck coefficients S and Ss (SI unit: V/K) in the domain and on the boundaries should be set.
Thermoelectric Leg: Application Library path Heat_Transfer_Module/Verification_Examples/thermoelectric_leg
Location in User Interface
Context Menus
when any of the following interface is added together with Heat Transfer in Solids (or another version of the Heat Transfer Interface):