Generating the Volume Mesh
The Viscous Flow solver relies on a finite element method. Provide it with a mesh that is composed of nodes and elements rather than cells and faces. In STAR-CCM+, a mesh that is composed of tetrahedral cells can support finite element solvers.
To create a tetrahedral mesh in the mixer:
- Right-click and select .
-
Select the following:
Pane Selection Parts window tube Select Meshers group box Surface Remesher
Tetrahedral Mesher
- Click OK.
Elements at the core of the mesh can be larger than elements on the surface. To achieve this size, you set a base size of 0.05 m, and then apply smaller sizing on the wetted surfaces.
- Select 0.05 m. and set Value to
- Right-click and select .
-
Select
and edit
Part Surfaces. In the dialog, select the following:
- Blade_A
- Blade_B
- Tube_wall
Click OK.
-
Expand
and set the following properties:
Node Property Value Target Surface Size Target Surface Size Custom Minimum Surface Size Minimum Surface Size Custom -
Select
and set the following properties
Node Property Value Percentage of Base 10.0 Percentage of Base 5.0 -
Click
Generate Volume Mesh
.
-
Click
Show All Meshes
to show the mesh in the Geometry scene.
Save the simulation.