Domain, Boundary, Edge, Point, and Pair Nodes for the Magnetic and Electric Fields Interface
The Magnetic and Electric Fields Interface has these domain, boundary, edge, point, and pair nodes available from the Physics ribbon toolbar (Windows users), Physics context menu (Mac or Linux users), or right-click to access the context menu (all users).
In general, to add a node, go to the Physics toolbar, no matter what operating system you are using. Subnodes are available by clicking the parent node and selecting it from the Attributes menu.
Also see About the Magnetic and Electric Fields Interface Boundary Conditions and Table 5-2 for a list of interior and exterior boundary conditions.
For axisymmetric components, COMSOL Multiphysics takes the axial symmetry boundaries (at r = 0) into account and automatically adds an Axial Symmetry node to the component that is valid on the axial symmetry boundaries only.
These nodes are described in this section:
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Ampère’s Law and Current Conservation
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Background Magnetic Flux Density
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Initial Values
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Magnetic Continuity
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Magnetic Insulation
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Magnetic Shielding
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RLC Coil Group
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Surface Current
The following nodes are described for the Magnetic Fields or Electric Currents interfaces,
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Ampère’s Law
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Override Coil Inlet/Outlet
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Contact Impedance
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Edge Current
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Electric Insulation
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Electric Point Dipole
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Electric Point Dipole (on Axis)
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Electric Potential
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Electric Shielding
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External Current Density
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Floating Potential
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Force Calculation
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Gauge Fixing for A-Field
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Ground
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Impedance Boundary Condition
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Lumped Element
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Lumped Port
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Magnetic Field
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Magnetic Point Dipole
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Magnetic Potential
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Coil
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Normal Current Density
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Perfect Magnetic Conductor
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Periodic Condition
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Single Conductor Coil
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Terminal
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Thin Low Permeability Gap
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Transition Boundary Condition
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Velocity (Lorentz Term)
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Sector Symmetry
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Infinite Elements, Perfectly Matched Layers, and Absorbing Layers in the COMSOL Multiphysics Reference Manual
In the COMSOL Multiphysics Reference Manual see Table 2-4 for links to common sections and Table 2-5 to common feature nodes. You can also search for information: press F1 to open the Help window or Ctrl+F1 to open the Documentation window.