## 13.2. Vista TF Reference Guide

The Vista TF program is a streamline curvature throughflow program for radial turbomachinery that can also be used for the analysis of any type of turbomachine. The program enables you to rapidly evaluate radial blade rows (pumps, compressors and turbines) at the early stages of the design.

The key aspect of this document is the input and output data specification for the program and how to run it.

The input files include a control file, an aerodynamics file, a geometry file, a correlations file, and can also include a restart file providing data from a previous converged simulation, and a file with real gas data. The input files include comment lines to help the reader to identify the parameters.

The output files include a results file with text output for analysis of the simulation giving:

- Data on streamlines and quasi-orthogonals (short for “quasi-orthogonal calculating stations”)

- Various files with the same information that can be used for plotting the results

- A file which monitors the history of the simulation

- A file to act as interface to other software systems

- A restart file which can be used to initialize a further simulation.

Note: This document mentions the Vista TF internal version number, which differs from the ANSYS release number. For reference, version 4.00 of the Vista TF solver corresponds with ANSYS Release 15.0.

Multiple operating points can be calculated in a single run.

For turbomachinery calculations in subsonic flow the program is very robust. Note, however, that robustness decreases with increasing Mach number in transonic cases. Some tips on dealing with possible problems with running the program are provided in Appendix B: Troubleshooting.

The topics in this guide are:

- Running Vista TF from the Command Line
- Software Limitations
- Troubleshooting of Problems and Errors
- Input and Output Data Files for Vista TF
- Streamline Curvature Throughflow Theory
- Appendices

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