Uncoupling a Multiphysics Coupling
Figure 3-17: Uncoupling a predefined multiphysics coupling feature.
For each multiphysics coupling feature (for example, Electromagnetic Heating), there is a section that defines the physics interfaces involved in the multiphysics coupling. By default, the applicable physics interfaces are selected in the lists to establish the coupling.
You can also select None from the lists to uncouple the node from a physics interface. If the physics interface is removed from the Model Builder (for example, if a Heat Transfer in Solids interface is deleted), then the Heat transfer list for the Electromagnetic Heating reverts to None (Figure 3-17) as there is no heat transfer interface to couple to. To avoid that the multiphysics coupling is turned off unintentionally, a warning A coupled physics is set to 'None' tooltip appears when you change a list under Coupled Interfaces to None.
Figure 3-18: A warning tooltip appears when a multiphysics coupling is turned off.
If a physics interface is deleted and then added to the model again, and in order to reestablish the coupling, you need to choose the physics interface again from the lists. This is applicable to all multiphysics coupling nodes that would normally default to the once present physics interface.