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 reported is a positive number.

2.   Scale the mesh.

General Scale...

  Since this mesh was created in units of millimeters, you will need to scale the mesh into meters.

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

(b)   Click Scale.

(c)   Ensure that m is selected from the View Length Unit In drop-down list.

(d)   Ensure that Xmax and Ymax are set to 1.8 m and 0.225 m respectively.

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

(e)   Close the Scale Mesh dialog box.

3.   Check the mesh.

General Check

Note:   It is a good practice to check the mesh after you manipulate 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 with the default settings.

Figure 14.2: The Quadrilateral Mesh for the Combustor Model

Extra:   You can use the right mouse button to probe for mesh information in the graphics window. If you click the right mouse button on any node in the mesh, information will be displayed in the ANSYS FLUENT console about the associated zone, including the name of the zone. This feature is especially useful when you have several zones of the same type and you want to distinguish between them quickly.

5.   Select Axisymmetric in the 2D Space list.

General