Predefined Multiphysics
Use a Predefined Multiphysics () node to categorize the multiphysics interfaces in different physics areas. It collects the multiphysics interfaces into more intuitive and quick access groups. Right-click Predefined Multiphysics to add Contained Multiphysics Coupling, Contained Multiphysics Definition, and Contained Interface (Predefined Multiphysics) subnodes.
To add a Predefined Multiphysics node, under Definitions Library right-click Physics Areas and choose it from the context menu.
Physics Area
This section contains a tree view of all physics areas and subcategories available from built-in resources, other areas defined in the current builder file, and areas defined in any imported file under the External Resources branch. To put your new physics area under a specific category in the tree, you first select that item. Then you click the Set as parent button () below the tree. As an alternative, you can also right-click the selected item, and choose Set as parent from the submenu. You find the currently selected category under the Parent area divider. If you do not specify a parent area, the area has My physics interfaces as parent area.
Identifiers
In the Type field you define a unique string that identifies the multiphysics interface. The text you write in the Description field is the text COMSOL Multiphysics displays for the multiphysics interface in the Model Wizard. You can also specify an icon image in the Icon field, either by typing the name or by choosing an icon from the file system. The value in the List order weight in Model Wizard determines where in the list the multiphysics interface appears. The default is 2 (the higher the weight, the lower position the Model Wizard gets in the tree of physics interfaces).
Restrictions
In this section, you can specify restrictions in terms of which space dimensions and study types that are allowed.
The list under Allowed space dimensions includes all space dimensions except 0D by default. Click the Add button () to choose one or more space dimensions that are not already included from the Allowed space dimensions list in the Add window that opens. Use the Move Up , Move Down , and Delete buttons under the table to organize the list if needed.