Domain, Boundary, and Pair Nodes for the Heavy Species Transport Interface
The Heavy Species Transport Interface has these domain, boundary, 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.
The boundary conditions are available for both charged and neutral species. Surface reactions can be added to the model — COMSOL Multiphysics then automatically generates the appropriate expressions for the fluxes for each species on the boundaries. Boundary conditions do not need to be applied for a species that comes from the mass constraint condition.
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Cross Section Import
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Diffusion and Migration
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Electron Impact Reaction
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Flux
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Inlet
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Outflow
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Reaction
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Species
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Surface Reaction
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Surface Species
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Symmetry
Due to the overwhelming number of species that can exist in a plasma, the Flux, Inlet, Outflow, and Symmetry boundary condition subnodes are available from the context menu (right-click the Species parent node) or from the Physics toolbar, Attributes menu. This simplifies and orders the process of assigning boundary conditions for a large number of species in a model.
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.