Documentation

Tutorial: Basics of the Tet-Dominant algorithm

Link to tutorial project containing the geometry:

Import project into workbench

  • As a first step we need to create a new simulation. To do so left click on the geometry named bearing block and then on Create Simulation.
Bearing block geometry on SimScale
Bearing block geometry.
  • This dialog box allows the user to select the simulation model. Choose Static and then click on Create Simulation.
    Meshing, FEA Analsysis, Simscale, Bearing Block Geometry, Tet Dominant Meshing
    Selecting the type of simulation: static analysis.
  • The default settings for the simulation are kept the same.
    Meshing, FEA Analsysis, Simscale, Bearing Block Geometry, Tet Dominant Meshing
    Static analysis of a bearing block.

Mesh Generation

  • Left click on Mesh to open mesh settings.
  • 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).
  • The Number of processors is automatically optimized by the algorithm.
  • Click on Generate to start meshing. The progress of the meshing operation is shown in the bar.
  • Meshing, FEA Analsysis, Simscale, Bearing Block Geometry, Tet Dominant Meshing
    Mesh settings for the bearing block geometry.

Mesh Inspection

  • Once the mesh is generated, we can check the event log for further information about our mesh.
    Meshing, FEA Analsysis, Simscale, Bearing Block Geometry, Tet Dominant Meshing
    Event log of the mesh.
  • The generated mesh is presented below. It has 137.1k cells and 27.3k nodes.
    Meshing, FEA Analsysis, Simscale, Bearing Block Geometry, Tet Dominant Meshing
    View of the coarse mesh.
  • The resulting mesh shows a reasonable discretization of the geometry and may now serve for a first simulation setup.
  • However, some parts such as the small radii are not represented accurately in every detail. The number of layers in the radii is only 2.
    Meshing, FEA Analsysis, Simscale, Bearing Block Geometry, Tet Dominant Meshing
    Mesh inspection of the bearing block with fillet faces highlighted.
  • Although increasing the mesh fineness might help, it would result in higher computation time.
  • One way to overcome this is through Manual Sizing Option, which is explained in the advanced tutorial.

Important

The Sizing defines how coarse or fine the discretization of the input geometry will be. With automatic sizing the mesh varies from very coarse to very fine. Go through the meshing page for Tet-dominant meshing for more information on sizing.

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