Step 2: General Settings

General

1.   Check the mesh.

General Check

   ANSYS FLUENT will perform various checks on the mesh and will report the progress in the console. Ensure that the reported minimum volume is a positive number.

2.   Scale the mesh.

General Scale...

  Scale the mesh to meters as it was created in centimeters.

(a)   Select cm (centimeters) from the Mesh Was Created In drop-down list in the Scaling group box.

(b)   Click Scale and verify that the domain extents are as shown in the Scale Mesh dialog box.

  The default SI units will be used in this tutorial, hence there is no need to change any units.

(c)   Close the Scale Mesh dialog box.

3.   Check the mesh.

General Check

Note:   It is a good practice to check the mesh after manipulating it (i.e., scale, convert to polyhedra, merge, separate, fuse, add zones, or smooth and swap). This will ensure that the quality of the mesh has not been compromised.

4.   Examine the mesh (Figure  16.2).

Figure 16.2: Mesh Display

Extra:   You can use the left mouse button to rotate the image and view it from different angles. Use the right mouse button to check which zone number corresponds to each boundary. If you click the right mouse button on one of the boundaries in the graphics window, its name and type will be printed in the ANSYS FLUENT console. This feature is especially useful when you have several zones of the same type and you want to distinguish between them quickly. Use the middle mouse button to zoom the image.

5.   Retain the default solver settings.

General