You are here: Tutorials > Turbulent Flow in a Diffuser > Setting up the model > Computational Domain

Computational domain

This section explains the preparation of surfaces to create the domain. This is done with the operations splitting, combining and renaming of the surfaces.

Diffuser Surfaces

1. Select CAD Surfaces diffuser in the Geometric Entities Panel.
2. Select Split/Combine Geometry or Grid in the Mesh Panel.
3. Select Split by Angle from the Operation drop-down list in the Properties Panel.
4. Enter 75 deg for Angle and click Split by Angle. Three new CAD Surfaces are created in the Geometric Entities Panel.
5. Select CAD Surfaces diffuser_01 , diffuser_02 and diffuser_03 rename as diffuser_wall, diffuser_outlet and diffuser_inlet respectively .

 

Figure 11.258 - Split of CAD surfaces

 

Note: Splitting of the surfaces can also be done by mouse selection using the Split by Mouse option from the Method drop-down list in the Geometry Tab of Properties Panel.