### 2.6.6. Using ANSYS CFX

The following topic(s) are discussed:

- Connecting from a Turbo Mesh Cell
- Changing the Geometry

Note: For more tips on using ANSYS CFX in ANSYS Workbench, refer to the ANSYS CFX in ANSYS Workbench chapter of the ANSYS CFX online help, which is accessible from the Help menu in CFX-Pre.

#### 2.6.6.1. Connecting from a Turbo Mesh Cell

It is recommended that you connect the Turbo Mesh cell of a TurboGrid system to the Setup cells of CFX component systems rather than to the Setup cells of Fluid Flow (CFX) systems.

#### 2.6.6.2. Changing the Geometry

After setting up a turbomachinery simulation in a CFX component system, if you change topology or number of blades in the mesh, then refreshing or updating the CFX Setup cell (directly or indirectly) will fail to propagate the new information correctly.

If you generate a turbo report in CFD-Post (the latter accessed by editing the Results cell), then subsequently make changes that affect the upstream solution, and then update the Results cell, the resulting turbo report will use the updated values for any variables (such as pressure and velocity) and expressions that it uses, but the report will continue to use the old turbomachinery data (such as the number of blades and the machine axis). After updating the solution, you will have to take one of the following actions to update the turbo report:

- If you have no work that must be preserved with respect to the Results cell, then:

  1. Reset the Results cell.

  2. Edit the Results cell.

  3. Load a turbo report.

- If you have done work in CFD-Post but have no work that must be preserved with respect to the turbo report, then:

  1. Update the Results cell.

  2. Reload the turbo report.

  This is slower than the previously-mentioned method because the update process includes an unwanted reprocessing of the old turbo report (with new results, but old turbomachinery data). However, because this method does not involve resetting the Results cell, any work you have done in CFD-Post is preserved (except for any modifications you have made to the original report).

Release 18.2 - © ANSYS, Inc. All rights reserved.