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If you are using ANSYS 16 or later while doing this project, please name the quadrilateral surfaces Period 1 and Period 2 instead Periodic 1 and Periodic 2. In version versions 16 and later of ANSYS, the word periodic is a key word used for something that is not relevant to this project and using this name will cause problems later on. When you enter the FLUENT interface, if your "period 1" and "period 2" named selections are not appearing, try renaming them "surface 1" and "surface 2". |
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Default Mesh and Section Plane
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It is generally advised to keep the minimum orthogonality greater than 0.15 and maximum skewness lower than 0.95. Having bad cells or elements can lead to incorrect simulation results. However, these are general guide rules and depend on the physics solved or where the cells are located. The following tables can help you gauge the quality of your mesh.
Skewness:
| Outstanding | Very Good | Good | Sufficient | Bad | Inappropriate |
|---|---|---|---|---|---|
| 0-0.25 | 0.25-0.50 | 0.50-0.80 | 0.80-0.95 | 0.95-0.98 | 0.98-1.00 |
Orthogonal quality:
| Inappropriate | Bad | Sufficient | Good | Very Good | Outstanding |
|---|---|---|---|---|---|
| 0-0.001 | 0.001-0.15 | 0.15-0.20 | 0.20-0.70 | 0.70-0.95 | 0.95-1.00 |
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