Wikis > EP-706 ANSYS FLUENT Venturi Simulation Procedure
3. Meshing
- DCLK the Meshing cell to open up ANSYS Meshing
- Units > Metric (mm, kg, N, s, mV, mA)
- RCLK on Mesh in the Outline tree > Preview > Surface Mesh
- Preview the surface mesh before generating the whole mesh when altering settings. A bad orthogonal quality in the surface mesh will end up bad as a whole mesh.
- Click on Mesh in the Outline tree
Defaults | Physics Preference | CFD |
Solver Preference | Fluent | |
Sizing | Use Advanced Sizing Function | On: Proximity and Curvature |
Relevance Center | Fine | |
Span Angle Center | Fine | |
Curvature Normal Angle | 10°
(should be adjusted depending on geometry) |
|
Patch Conforming Options | Triangle Surface Mesher | Advancing Front |
Statistics | Mesh Metric | Orthogonal Quality
Use this to assess if the mesh is at an acceptable quality. You want your Min to be above than .40 for 2D surface mesh and above .05 for 3D. |
- Creating Named Selections
- Select the face of the cylinder
- RCLK on the graphics window > Create Named Selections
- Name it “wall-hole”
- Select the face of the cylinder
- Do the same for other faces as shown (this is taken from an example with a sphere as the hole to better view the surfaces):
- Select all other faces that have not been named and name them “openings”
- Select the whole body (not a face) and name it “air-volume”
- RCLK on Mesh > Insert > Sizing
- Select the whole body for Scope.