Creating a Vector Warp for the Sleeve

The rubber sleeve deforms in response to the applied pressure load. To obtain a deformed part, you create a vector warp which deforms according to the computed deformation of the rubber sleeve. The vector warp is useful to obtain the fluid region after the sleeve has deformed.

To create the vector warp:
  1. Right-click the Derived Parts node and select New > Warp > Vector Warp....
  2. In the Edit dialog, set the following properties:
    PropertyValue
    Input PartsParts > Sleeve
    VectorNormal
    Scale Factor0.0
    DisplayNo Displayer
  3. Click Create and Close.
  4. Right-click the Derived Parts > Vector Warp node and select Extract Geometry Part.
    The vector wrap is added as a new geometry part.
The surfaces of the vector warp part are independent of each other. As the vector warp geometry part is created using surfaces that are not connected, the warp geometry may include defects such as free edges and pierced faces. To detect these defects:
  1. Right-click the Geometry > Parts > Vector Warp node and select Repair Surface...
  2. In the Surface Repair Options dialog, check that Geometry Description is set to Root, then click OK.
  3. In the slide out panel on the right-hand side of the Contact Gap window, select Execute All.
    Simcenter STAR-CCM+ detects any errors in the tessellated surfaces of the vector warp part. The part geometry contains 940 free edges and 1834 pierced faces.

  4. In the Surface Repair panel, click Close.
To prepare the vector warp geometry for meshing, you use the Part Curve Creator and Zip Edges operations to repair the free edges and pierced faces.
  1. Right-click the Geometry > Operations node and select New > Surface Preperation > Part Curve Creator.
  2. In the Create Part Curves Creator Operation dialog, set the following properties and select OK:
    Property Setting
    Parts Vector Warp
    Execute Operation Upon Creation Activated
    Simcenter STAR-CCM+ adds a Part Curve node under the Parts > Vector Warp > Curves node.

  3. Right-click the Operations node and select New > Surface Preperation > Zip Edges.
  4. In the Create Zip Edges Operation dialog, select the Vector Warp node and click OK.
  5. Select the Operations > Zip Edges node and set Zip Mode to New Description - Discrete.
    Simcenter STAR-CCM+ issues a confirmation dialog when you change the zip mode.
  6. In the Confirm Switch to Description Generating Zip Operation dialog, select Yes.


  7. Right-click the Zip Edges node and select Execute.
  8. To verify that the vector warp surfaces have been repaired, open the zip edges description of the Vector Warp in surface repair:
    1. Right-click the Parts > Vector Warp node and select Repair Surface....
    2. In the Surface Repair Options dialog, set Geometry Description to Zip Edges and select OK.
    3. In the slide out panel on the right-hand side of the Contact Gap window, select Execute All.
      Simcenter STAR-CCM+ does not detect any free edges or pierced faces.

  9. In the Surface Repair panel, click Close.
  10. Save the simulation.