Property

A Property () contains user inputs and variables that are important to the entire physics interface. A property instance always exists in only one instance for a physics interface. Any variables or equations defined by a property typically inherit the selection of the physics interface, although it is possible to change this.

To add a Property:

•	Under Building Blocks, right-click the Properties node and select it from the context menu.

•	Right-click the Physics Interface or Multiphysics Interface nodes and select it from the context menu.

Right-click the Property node to add many other features from the context menu. The Settings window has the following sections:

Identifier

The text you write in the Description field is only used as the default section description. If you create one or several manual sections using the User Input Group, the description in the Description field is unused. The Type is a unique string that identifies the property, which must be unique among all properties supported by a physics interface.

Restrictions

In the Allowed space dimensions list you can define what space dimensions this particular property can be used in. The option Same as parent (the default option) means that the feature supports the same space dimensions as the physics interface. If you want to control the space dimensions manually, choose Customized from the list. You can then select from a list of all space dimensions.

You can also impose a special restriction on study types for this property. If you try to solve a problem for a property that does not support the current study type, it does not add any contributions to the model. Choose Customized from the Allowed study types list to control the supported study types manually by selecting from a list of study types. The option Same as parent (the default option) means that the property supports the same study types as the physics interface.