Generating the Volume Mesh

You generate a trimmed cell volume mesh without prism layers. To improve the accuracy of the calculation, you refine the heat exchanger core by using a block-shaped volumetric refinement. The individual heat exchanger parts are meshed per-part, which makes the mesh non-conformal at the interface. You are required to use per-part meshing to mesh the two collocated core parts. Alternatively, you can use a Volume Mesh Pattern to mesh the duplicated core part.

To generate the volume mesh:
  1. Right-click the Geometry > Operations node and select New > Mesh > Automated Mesh.
  2. In the Create Automated Mesh Operation dialog:
    1. From the Parts list, select all parts.
    2. In the Select Meshersgroup box, select the following meshers in order:
      Group Mesher
      Surface Meshers Surface Remesher
      Core Volume Meshers Trimmed Cell Mesher
    3. Click OK.
  3. Select the Operations > Automated Mesh node and activate Per-Part Meshing.
  4. Select the Automated Mesh > Meshers > Trimmed Cell Mesher node and activate Perform Mesh Alignment.
  5. Edit the Automated Mesh > Default Controls node and set the following properties:
    Node Property Setting
    Base Size Value 2.56 cm
    Minimum Surface Size Percentage of Base 1
    Mesh Alignment Location Location [-0.166693, 0.293814, 0.126133] m
  6. Create a block shape part around the core. This shape is for the volumetric controls that define mesh refinement.
    1. Right-click the Geometry > Parts node and select New Shape Part > Block.
    2. In the Create/Edit Block Part dialog, enter the following settings in the Maximum and Minimum Coordinates box:
      Property Setting
      Corner 1 [-0.18477, -0.15894, 0.100453] m
      Corner 2 [0.29612, 0.38635, 0.179] m
    3. Click OK to close the window.
  7. Create a volumetric control and select the shape that defines the source:
    1. Right-click the Operations > Automated Mesh > Custom Controls node and select New > Volumetric Control.
    2. Edit the Custom Controls > Volumetric Control node and set the following properties:
      Node Property Setting
      Volumetric Control Parts Block
      Controls
      Surface Remesher Customize Size Activated
      Trimmer Customize Isotropic Size Activated
      Values
      Custom Size Size Type Absolute
      Value 0.64 cm
  8. To start the mesh generation process, click (Generate Volume Mesh).
    The output from the meshers is shown in the Output window. When the meshing process is complete, the message Volume Meshing Pipeline Completed is displayed in the Output window.
  9. To view the resulting mesh, create a mesh scene.


  10. Save the simulation.