The Pressure Acoustics Interface > The Pressure Acoustics, Frequency Domain Interface > Domain, Boundary, Edge, Point, and Pair Nodes for the Pressure Acoustics, Frequency Domain Interface

Domain, Boundary, Edge, Point, and Pair Nodes for the Pressure Acoustics, Frequency Domain Interface
The Pressure Acoustics, Frequency Domain Interface has these domain, boundary, edge, point, and pair nodes, listed in alphabetical order, available from the Physics ribbon toolbar (Windows users), Physics context menu (Mac or Linux users), or by right-clicking to access the context menu (all users). Continuity in the total pressure is the default condition on interior boundaries.
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.
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.
See Table 2-3 for links to common sections and Table 2-4 for common feature nodes. You can also search for information: press F1 to open the Help window or Ctrl+F1 to open the Documentation window.