## 8.2. Data Review and Edit

The input data can be specified on the Aerodynamics and Geometry tabs of the Vista Radial Turbine Design dialog box, and also (or alternatively) in the Properties view for the Blade Design cell.

The input properties of the Blade Design cell are shown in the following table.

Table 8.1: Input Properties of Blade Design Cell of Vista RTD System

Property | Notes
--- | ---
General
BladeModeler units | [mm | cm | in | ft | m]
Aerodynamic inputs
Inlet stagnation temperature |
Inlet stagnation pressure |
Mass flow rate |
Expansion ratio t-t |
Rotational speed |
Blade speed ratio (U/C t-t) |
Stage efficiency | [User defined | Correlation]
Correlation | [Suhrmann | Baines] Only for Stage efficiency set to `Correlation`
Efficiency | Only for Stage efficiency set to `User defined`
Gas properties | [Air | Air/Fuel ratio | Fixed values]
Air/Fuel Ratio | Only for Gas properties set to `Air/Fuel ratio`
Specific Heat | Only for Gas properties set to `Fixed values`
Gas Constant | Only for Gas properties set to `Fixed values`
Inlet Angle Type | [Absolute | Relative]
Inlet Angle (absolute) | Only for Inlet Angle Type set to `Absolute`
Inlet Angle (Relative) | Only for Inlet Angle Type set to `Relative`
Inlet beta = 0 ? | [Select | Clear]
Exit Angle Type | [Absolute | Relative] Only for Inlet beta = 0 ? set to `Clear`
Exit flow angle (absolute) | Only for Inlet beta = 0 ? set to `Clear` and Exit Angle Type set to `Absolute`
Exit flow angle (relative) | Only for Inlet beta = 0 ? set to `Clear` and Exit Angle Type set to `Relative`
Geometry inputs
Impeller Thickness |
Number of Impeller Vanes |
Shroud exit/inlet Radius Ratio |
Hub exit/inlet Radius Ratio |
Axial tip clearance | Tip clearance/vane height | Tip clearance
Tip clearance ratio | Only for Axial tip clearance set to `Tip clearance/vane height`
Tip clearance | Only for Axial tip clearance set to `Tip clearance`
Impeller length ratio | Automatic | User specified
Impeller length/diameter Ratio | Only for Impeller length ratio set to `User specified`

Input data may be declared as parameters via the Properties view. Once an input is designated as a parameter, its value can be modified only via the Parameter Manager.

The data defining the case are also displayed in the first two tabs of the user interface as follows:

- Aerodynamics Tab
- Geometry Tab

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