Refining the Wrap on the Radiator Hoses

Some of the radiator hoses are not resolved correctly and are merging together at the point where they are in close proximity.

Use a volume extent to refine the surface proximity at the location where the two hoses are merging.
  1. Isolate the radiator hoses:
    1. In the Wrap scene, right-click the marked radiator hose and select Show Only This Part.
      The radiator hoses, radiatorPipe_10183, are isolated in the scene.

    2. Close the Input scene so that you only have the Wrap scene open.
  2. Create a local extent:
    1. Right-click the Operations > Surface Wrapper > Local Extents node and select New > Volume Extent.
      In this case, you use a volume extent because only a small portion of the part requires refinement.
    2. Rename Volume Extent to Radiator Hoses.
  3. Create a shape part to use in the volume extent:
    1. Right-click the Parts node and select New Shape Part > Block.
      The Create Block Part panel appears. In the scene, a box snaps to the isolated part.
    2. Enter the following values:
      Property Setting
      Corner 1 [-0.395, -0.011, 0.571] m
      Corner 2 [-0.27, 0.107, 0.704] m
      The box appears as shown below.

    3. Click Create and Close to create the shape part.
  4. Add the shape part to the volume extent:
    1. Select the Operations > Surface Wrapper > Local Extents > Radiator Hoses and set Parts to Block 3.
  5. Create and define a custom control to refine the wrap on the radiator hoses:
    1. Right-click the Operations > Surface Wrapper > Custom Controls node and select New > Surface Control.
    2. Rename Surface Control to Radiator Hoses Refinement.
    3. In the Wrap scene, right-click the radiator hoses and choose Select Inherited From to select the part surfaces that correspond to the original input part.
    4. Press <Ctrl> + <C> to copy the selected part surfaces to the clipboard.
    5. Select the Operations > Surface Wrapper > Custom Controls > Radiator Hoses Refinement node and use (Paste Selection from Clipboard) to set the part surfaces.
    6. Edit the Radiator Hoses Refinement node and set the custom control settings as shown below:
      Node Property Setting
      Controls
      Surface Proximity Proximity Custom
      Values
      Surface Proximity Search Floor 5.0 mm
      # Points in gap 4.0
By default the surface wrapper is set to automatically determine the volume of interest for a volume extent. In some cases the wrapper tells you that one or more volumes of interest failed. When this happens, you are advised to guide the wrapper by placing a seed point inside the volume extent. To demonstrate the process in this tutorial, you add a seed point for the radiator hoses volume extent. Here, as the wrap is an external wrap, you add the seed point between the outer surface of the hoses and the surface of the volume extent.
  1. Create a seed point within the volume extent:
    1. Select the Local Extents > Radiator Hoses node and deactivate the Auto volume of interest option.
    2. Right-click the Seed Points node and select New.
    3. In the seed point creation tool that appears, activate the Display Point Tool option to show the point tool in the active scene.
    4. Click the Simulation tab to switch to the simulation tree, select Geometry > Parts > Block 3, then click the Edit tab to return to the seed point creation tool.
      The shape part is highlighted in the scene without it being added to the scene's displayer.
    5. In the active scene, use the display point tool to position the seed point inside the shape part. Sample coordinates are shown below.


      Position Setting
      X -0.308
      Y 0.0855
      Z 0.5985
    6. Click Create and Close to create the seed point.
  2. Execute the wrapper.
    The two radiator hoses are no longer merged.
  3. Open the Input scene and reposition it as before.
    The radiator hoses are now resolved correctly.

  4. Save the simulation.