Isothermal
The Isothermal node sets up an isothermal condition:
This is a good approximation on solid walls, as heat conduction is typically much higher in solids than in fluids. Add this node from the Thermal submenu.
Constraint Settings
To display this section, click the Show More Options button () and select Advanced Physics Options in the Show More Options dialog box.
Excluded Edges/Points
To display this section, click the Show More Options button () and select Advanced Physics Options in the Show More Options dialog box. See Suppressing Constraints on Lower Dimensions for details.