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.

Split Geometry

Select CAD Surfacesball3Dvalve in the Geometric Entities Panel.
Select Split/Combine Geometry or Grid in the Mesh Panel.
Select Split Disconnected from the Operation drop-down list in the Properties Panel, click Split Disconnected. Four new CAD Surfaces are created in the Geometric Entities Panel.
Rename the CAD Surfaces ball3Dvalve_01, ball3Dvalve_02, ball3Dvalve_03 and ball3Dvalve_04 as outerCAD, outlet, ballCAD and inlet respectively.

Figure 6.637 - Ball 3D valve initial surfaces

Inlet Surfaces

Select the CAD Surfaces entity inlet in the Geometric Entities Panel.
Select Split by Angle from the Operation drop-down list in the Properties Panel.
Enter 75 deg for Angle, click Split by Angle. Three new CAD Surfaces entities inlet_01, inlet_02, inlet_03 are created in the Geometric Entities Panel.
Rename the CAD Surfaces inlet_01, inlet_02, inlet_03 as inlet_wall, inlet_mgi and inlet_inlet respectively in the Geometric Entities Panel.

Figure 6.638 - Inlet surfaces

Outlet Surfaces

Select the CAD Surfaces entity outlet in the Geometric Entities Panel.
Select Split by Angle from the Operation drop-down list in the Properties Panel.
Enter 75 deg for Angle, click Split by Angle. Three new CAD Surfaces entities outlet_01, outlet_02, outlet_03 are created in the Geometric Entities Panel.
Rename the CAD Surfaces outlet_01, outlet_02, outlet_03 as outlet_wall, outlet_outlet and outlet_mgi respectively in the Geometric Entities Panel.

Figure 6.639 - Outlet surfaces