6.8.13 Rotating the Mesh

The ability to rotate the mesh is analogous to the ability to translate the mesh in ANSYS FLUENT. You can rotate the mesh about the $x$, $y$, or (for 3D) $z$ axis and also specify the rotation origin. This option is useful in the cases where the structural mesh and the CFD mesh are offset by a small angle.

You can rotate the mesh in ANSYS FLUENT using the Rotate Mesh dialog box (Figure  6.8.12).

Mesh $\rightarrow$ Rotate...

Figure 6.8.12: The Rotate Mesh Dialog Box

Using the Rotate Mesh Dialog Box

The procedure for rotating the mesh is as follows:

1.   Specify the required Rotation Angle for the mesh. You can specify any positive or negative real number in the correct unit of angle.

2.   In the Rotation Origin group box, enter X, Y, and (for 3D) Z coordinates to specify a new origin for the axis of rotation.

3.   In the Rotation Axis group box, enter values for the X, Y, and (for 3D) Z axes to specify the vector for the axis of rotation.

4.   Click the Rotate button and redisplay the mesh.

The Domain Extents will be updated to display the new extents of the rotated mesh. (Note that the Domain Extents are purely informational; you cannot edit them manually.)