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3-1ANSYS, Inc. Proprietary© 2009 ANSYS, Inc. All rights reserved.
April 28, 2009Inventory #002645
Static Mixer with Patch Conforming Tetrahedronsand Sweep Methods
Workshop 3.1
ANSYS Meshing Application Introduction
Meshing Methods for 3D Geometries
3-2ANSYS, Inc. Proprietary© 2009 ANSYS, Inc. All rights reserved.
April 28, 2009Inventory #002645
Training ManualGoals
• This workshop will illustrate combining the Patch Conforming Tetrahedrons and Sweep Methods for a multibody part to yield a conformal mesh with hybrid tet/prism and hex elements
• The use of Inflation is also demonstrated for both the Sweepand Patch Conforming methods
Meshing Methods for 3D Geometries
3-3ANSYS, Inc. Proprietary© 2009 ANSYS, Inc. All rights reserved.
April 28, 2009Inventory #002645
Training ManualSpecifying Geometry
1. Copy the sm.agdb file from the tutorial
files folder to your working directory
2. Start Workbench and double-click the
Mesh entry in the Component
Systems panel at the right
3. Right-click on Geometry in the Mesh
entry in the Project Schematic and
select Import Geometry/Browse
4. Browse to the sm.agdb file you
copied and click Open
5. Note that the Geometry entry in the
Project Schematic now has a green
check mark indicating that geometry
has been specified
Meshing Methods for 3D Geometries
3-4ANSYS, Inc. Proprietary© 2009 ANSYS, Inc. All rights reserved.
April 28, 2009Inventory #002645
Training ManualInitial Mesh
7. Double-click the Mesh entry in the
schematic or right-click and select Edit
8. Expand the Geometry entry in the Outline
and note that there is a single part with 4
bodies
9. Left click on the Mesh entry and set the
Physics preference to CFD and select the
FLUENT solver
10.Right click on Mesh and Insert a Mesh
Method. Select the three cylindrical bodies
from the Model View and choose the Sweep
Method
11.Set the Src/Target Selection to Manual
Source and select the three end faces of the
cylindrical bodies
1
2
3
Meshing Methods for 3D Geometries
3-5ANSYS, Inc. Proprietary© 2009 ANSYS, Inc. All rights reserved.
April 28, 2009Inventory #002645
Training ManualPatch Conforming Tetrahedrons
12. Right click on Mesh and Insert a Mesh
Method. Select the central conical bodies
from the Model View and choose the
Tetrahedrons Method with the Patch
Conforming Algorithm
Meshing Methods for 3D Geometries
3-6ANSYS, Inc. Proprietary© 2009 ANSYS, Inc. All rights reserved.
April 28, 2009Inventory #002645
Training ManualInitial Mesh (no Inflation)
13. Expand the Inflation entry in the Mesh
settings and set the Use Automatic tet
Inflation option to None as you will
manually inflate the two different methods
Make sure the mesh settings are as
shown at right
14. Right-click on Mesh and generate the
mesh. Notice that the mesh is conformal
Meshing Methods for 3D Geometries
3-7ANSYS, Inc. Proprietary© 2009 ANSYS, Inc. All rights reserved.
April 28, 2009Inventory #002645
Training ManualInflating the Sweep Method
15. Right-click on the Sweep Method and
choose Inflate this Method. The inflation
will be scoped to the three source faces
16. For the boundary, you will need to select
the three outer circular edges of the faces
(you may need to enable the Select
Edges toggle to simplify this).
17. Set the maximum thickness to 0.2 m,
leaving the other settings at defaults.
Right-click
Meshing Methods for 3D Geometries
3-8ANSYS, Inc. Proprietary© 2009 ANSYS, Inc. All rights reserved.
April 28, 2009Inventory #002645
Training ManualInflating the Tetrahedrons Method
18. Right-click on the Tetrahedrons Method
and choose Inflate this Method. The
inflation will be scoped to the central body.
Select the 2 outer radial faces of the
conical body
19. Set the Inflation Option to Total Thickness
and set the Maximum Thickness to 0.2 m,
leaving the other settings at defaults.
Right-click
Meshing Methods for 3D Geometries
3-9ANSYS, Inc. Proprietary© 2009 ANSYS, Inc. All rights reserved.
April 28, 2009Inventory #002645
Training ManualGenerating the Mesh
20. Generate the mesh. Note that the
swept regions still produce hexes
while the central body produces
prisms and tetrahedrons.
21. Verify that all meshes are conformal
and save your project.