Creating the Contacts
Before assigning the parts to regions, you define geometry contacts between the parts. As the geometry is a sector of a compressor stage, you define periodic contacts between the surfaces enclosing the sector. Additionally, you create a contact for the mixing-plane interface between the rotor and the stator regions.
To create the periodic contact for the rotor:
- Expand the P1 and P2 nodes. node and multi-select the The corresponding surfaces are highlighted in the Geometry Scene 1 window.
- Right-click one of the selected nodes and select Create Periodic.Simcenter STAR-CCM+ adds the rotor periodic contact to the node.
To create the periodic contact for the stator:
- Expand the P1 and P2 nodes. node and multi-select the
- Right-click one of the selected nodes and select Create Periodic.
To define the mixing-plane contact between the stator and rotor, you
create a weak-in-place contact:
- Multi-select the and nodes.
-
Right-click one of the selected nodes and click
Create Weak In-Place
Contact.
Simcenter STAR-CCM+ adds the in-place contact, StatorPassage/RotorPassage, to the Contacts node.
The periodic transformation applied to the periodic contacts is both rotational and translational. For the rotation, you specify the axis of rotation:
-
Multi-select the Specify
Axis.
and nodes and set Axis of
Rotation Specification to The axis specification for the periodic contacts defaults to the positive Z-axis of the Laboratory coordinate system.
- Save the simulation.