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 Surfaces propeller_enclosure 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. Three new CAD Surfaces entities propeller_enclosure _01 to propeller_enclosure _03 are created in the Geometric Entities Panel.
Rename propeller_enclosure_03 as propeller.
Select propeller_enclosure_01.
Select Split by Angle from the Operation drop-down list in the Properties Panel, click Split by Angle. Three new CAD Surfaces entities propeller_enclosure _01_01 to propeller_enclosure_01_03 are created in the Geometric Entities Panel.
Rename the CAD Surfaces propeller_enclosure _01_01, propeller_enclosure_01_02 and propeller_enclosure_01_03 as propeller_side_mgi, propeller_front_mgi and propeller_back_mgi respectively.
Select propeller_enclosure_02.
Select Split by Angle from the Operation drop-down list in the Properties Panel, click Split by Angle. Three new CAD Surfaces entities propeller_enclosure _02_01 to propeller_enclosure_02_03 are created in the Geometric Entities Panel.
Rename the CAD Surfaces propeller_enclosure _02_01, propeller_enclosure_02_02 and propeller_enclosure_02_03 as enclosure_side_mgi, enclosure_front_mgi and enclosure_back_mgi respectively.

Figure 8.88 - Initial surfaces

Figure 8.89 - Propeller surfaces after splitting and renaming

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.