Static Mixer with Patch Conforming Tetrahedrons and Sweep Methods Workshop 3.1 ANSYS Meshing Application Introduction

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April 28, 2009Inventory #002645

Static Mixer with Patch Conforming Tetrahedronsand Sweep Methods

Workshop 3.1

ANSYS Meshing Application Introduction

Meshing Methods for 3D Geometries



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




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




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




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




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




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




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




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.




Training ManualInterior View of Inflated Mesh

Documents

Static Mixer with Patch Conforming Tetrahedrons and Sweep Methods Workshop 3.1 ANSYS Meshing Application Introduction