Input (for Geometry Analysis)
The Input subnode is added by default as subnode of the Geometry Analysis node. Use it to specify the boundaries where the wires enter the domain or, in the case of a closed-loop coil, an interior boundary crossed by the wires. The wire direction is forced to be orthogonal to the boundary. Used in combination with the Output (for Geometry Analysis) node, it also defines the direction of the current flow in an open coil (from Input to Output).
When applied on one or more boundaries, a red arrow in the Graphics window will show the direction of the wire. Select the Reverse direction check box to reverse the direction of the wires.
For an open coil, the Input subnode should never be added to boundaries that are interior to the coil’s domain selection. Note also that an open coil should have its start (Input) and end (Output) on boundaries that are exterior to the domain selection of the parent physics (for example, Magnetic Fields) and of a type that supports closure of the coil by means of an induced surface current density. The latter condition means Magnetic Insulation and, in the frequency domain, Impedance Boundary Condition.