This interface supports layered shell features, which means each boundary in the 3D geometry may represent a number of thin layers with different electrical properties. Potential variations in the normal direction (in between and inside layers) are supported. For a general description of layer and interface selections, see Layer and Interface Selection Tools. For more information, see the section on how to set up a Layered Material node in the COMSOL Multiphysics Reference Manual.
|
For a more extensive introduction to the physics and equations implemented by this physics interface, see The Electric Currents Interface, and the Theory for the Electric Currents Interface. Additional information is available in Theory for the Electrostatics Interface chapter and The Electric Currents, Single Layer Shell Interface chapter.
|
•
|
If the Restrict to layered boundaries check box is not selected in the Boundary Selection section, a nonlayered material may be defined on the selected boundaries, and the Thickness Lth can be set as a user defined value or expression. This value overrides the values set in the material nodes.
|
•
|
You can visualize the selected layered materials and layers in each layered material by clicking the Layer cross section preview and Layer 3D preview buttons.
|
•
|
In a Material node, the Layer thickness can be in the table found under the Material Contents section of the material Settings window. This automatically adds a Shell subnode under the Material node, transforming it as a layered material.
|
•
|
When the layered material is a Single Layer Material, the Thickness is set in the Layer Definition section of the Shell Property Group window.
|
•
|
For a general Layered Material, added through a Layered Material Link or a Layered Material Stack, the Thickness is set in the Layer Definition section of the Settings window. Several layers may be defined in the table, and the Thickness should be defined for each of them. The total thickness of the layered material is the sum of all the layers thicknesses.
|
|
See Layered Material, Layered Material Link, Layered Material Stack, Layered Material Link (Subnode), and Single Layer Materials in the COMSOL Multiphysics Reference Manual for details on the definition of layered materials.
|