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.
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1This feature is available with the Piezoelectricity multiphysics interface.
2Requires either the Acoustics Module, MEMS Module, or Structural Mechanics Module.
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For axisymmetric components, COMSOL Multiphysics takes the axial symmetry boundaries (at r = 0) into account and automatically adds an Axial Symmetry node to the model that is valid on the axial symmetry boundaries only. There are also Line Charge (on Axis) and Point Charge (on Axis) available.
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