Define Default Wall Conditions

Use the Default Wall tool to edit the default properties of unassigned wall surfaces. If you later assigns properties to a surface, it will be removed from the default domain.

1. From the Flow ribbon, click the arrow next to the Boundaries tool group name, then select Default Wall.

   
   
   Figure 1.

   The Default Boundary Condition dialog opens and all undefined walls are highlighted.
2. Select a boundary type from the Settings menu and input desired values.
   • No-slip wall treatment
     Note: If the Heat Transfer option is turned on in the Flow ribbon Physics tool, additional options will be available.
   • Sliding Interface
   • Internal wall treatment