The Layered Shell node adds the continuity equation for the electric potential and allows for defining the electric conductivity of the layers. This interface closely relates to
Current Conservation under
The Electric Currents Interface. Even though the interface works on the boundary level, the resulting equations correspond directly to a volumetric model. The
Layered Shell includes an extra dimension to describe perpendicular gradients.
Notice that the Layered Shell requires a
Layered Material. This has consequences for the continuity equation. For more information about continuity handling, see
Electrical Continuity in the Electric Currents, Layered Shell Interface.
Select the applicable layers (the default setting is All layered materials). Additionally, there is a shorthand available for creating a
Single Layer Material (the plus, next to the
Layer Selection setting).
By default, the Electrical conductivity σ (SI unit: S/m) of the layers is defined as
From material. If you select
User defined, the same user defined value will be applied to all selected layers.
For User defined select
Isotropic,
Diagonal,
Symmetric, or
Full depending on the characteristics of the electrical conductivity, and then enter values or expressions in the field or matrix.