Settings for Physics Interfaces and Coupling Features
When physics interfaces are added using the predefined couplings, specific settings are included with the physics interfaces and the coupling features.
However, if physics interfaces are added one at a time, followed by the coupling features, these modified settings are not automatically included.
For example, if single Heat Transfer in Fluids and Laminar Flow interfaces are added, COMSOL adds an empty Multiphysics node. When you right-click this node, you can choose from the available coupling features — Nonisothermal Flow, Temperature Coupling, and Flow Coupling — but the modified settings are not included.
A Fluid feature is added with a empty default editable selection.
The Fluid flow and Heat transfer interfaces are preselected