Define Radiation at Openings

Use the Opening tool to apply radiation boundary conditions at openings. A radiation opening definition provides a method of fully enclosing a fluid domain that is not surrounded by walls. This condition is appropriate for inlet and outlet type boundary surfaces.

1. From the Radiation ribbon, click the External tool.

   
   
   Figure 1.

2. Select surfaces.
3. In the microdialog, enter a temperature value.
4. From the guide bar, execute the command in the following ways:
   • Click to confirm your selection and remain in the tool.

     This allows you to continue creating instances and helps you visualize and edit instances with the legend.

   • Click to confirm your selection and exit the tool.