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 and interfaces are added, COMSOL Multiphysics adds an empty node. When you right-click this node, you can choose from the available coupling features, , , and , but the modified settings are not included.

Table 4-1: Modified Settings for the Nonisothermal Flow interfaces
Physics or Coupling Interface	Modified Settings (if Any)
Heat Transfer in Solids	Discretization order from temperature Lagrange shape function is 1. A Heat Transfer in Fluids feature is added with a default editable selection set to All domains.
Heat Transfer in Fluids	none
Nonisothermal Flow	The Fluid flow and Heat transfer interfaces are preselected The Compressibility option of the fluid flow interface is set to Weakly Compressible