Tutorial: Advanced setup of the Tet-Dominant algorithm

This meshing tutorial is based on the Tet-dominant Quick Tutorial but introduces more advanced meshing techniques like local refinements and manual element sizing. In addition to that also methods of mesh quality assessment are presented.

Link to tutorial project containing the geometry:

Import project into workbench

Create new simulation

• As a first step we need to create a new simulation. To create a simulation left click on the bearing block and then on Create Simulation

  

• This dialog box allows the user to select the simulation model. Click on ‘Static’.

  

• The default settings for the simulation are kept the same. Save the simulation model by clicking on the tick mark.

  

Mesh Generation

In this tutorial we want to create two different meshes for the geometry. The goal is to have a better resolution of the fillet regions compared to the Tet-dominant Quick Tutorial. To achieve this, we first create a mesh refinement on the fillet regions and in the second mesh we won’t have a local refinement, but rather modify the mesh sizing to increase the mesh resolution on the fillets indirectly. Left click on the mesh icon to create a new mesh.

• Choose the Tet-Dominant Algorithm and the desired mesh order (First order).
• Select the overall automatic sizing and the desired mesh fineness ( Coarse in this tutorial)

Specify the Number of computing cores for the meshing operation (16 in this tutorial)

Local Element Size

• Click on the ‘+’ icon to add new refinement.
• Choose local element size option as shown below

• Choose the Fineness level as moderate and pick the faces for refinement by using the face selection icon.
• We need to pick all the 14 faces of the fillet regions as shown below.

  

• Click on Generate to start meshing. The progress of the meshing is shown in the bar.
• The generated mesh is shown below:

• Zooming in, we can see the refinement in the fillet regions, where the number of layers have increased

  

• To generate the second mesh we need to choose the manual sizing option.
• Use the settings below and click on Generate to generate the mesh.

• The generated mesh is presented below:

• Zoom in to see the refinement in fillet regions.

• The figure below shows the comparison between the 3 different meshes generated.