CAE Software for Preliminary Design


CAE Software for Radial Turbines

A meanline approach is used to design radial and mixed-inflow turbines. RITAL™ is used to design the turbine stage, analyze performance, refine parameters with data reduction, and model the machine according to several performance models. RITAL's unique Design Wizard leads the user through all the steps necessary for design, analysis, and data reduction. The meanline turbine design can easily migrate into the AxCent® program for further blade design and fluid dynamic analysis.

Components Supported by RITAL:

  • Inlet volutes
  • Nozzles
  • Rotors
  • Exhaust diffusers


RITAL has built-in models for inlet volutes, rotor and nozzle diffusion/losses, disk friction, and other losses related to subsonic turbine performance. The same consistent model is used in both the design and analysis modes of RITAL.

Integrated Performance Map Plotting

Review design performance, analysis, and test data with flexibly plotted performance maps, updated automatically with each geometric change.

Easy Editing

View the turbine stage in an active, true-scale meridional view. Edit the parameters by double clicking on the component in the meridional view. Also edit parameters using a single text input/output file, a feature especially useful for optimization.

Table View of Results

View the results in a flexible, spreadsheet-like table format, customizable through separate filters. Create any number of filters, select what to display, and customize the labels as well.

Axial View with Velocity Triangles

Using the window view, view blades and velocity triangles at the impeller inlet and exit.

OLE Automation Support

Control RITAL from an external program through industry-standard Object Linking and Embedding (OLE) automation. OLE automation supports full control of data entry, program execution, and result retrieval. External programs can be written in Visual Basic, C++, FORTRAN, or any other language which supports the Microsoft® OLE standard.

A Real Fluid Program

RITAL calculates Real Fluid properties using optional DB Robinson Real Fluid Properties, NIST, or ASME Steam routines. Users can also incorporate their own proprietary fluid properties.

Direct Integration with AxCent®

Start AxCent automatically from inside RITAL, which automatically transfers the initial geometry to AxCent for 3D geometry generation, rapid loading analysis, throughflow analysis, and output for CFD and FEA stress analysis. Changes in AxCent that affect the meanline analysis will cause the meanline analysis to be rerun and all performance maps to be regenerated.

Output to AxCent®

RITAL supports the Agile Engineering Design System® process through easy transfer of meanline design information to the AxCent program for geometry generation, rapid loading analysis, throughflow analysis, and output to CFD and FEA programs.

Learn More about CAE in our SpinOffs Blog

How can we help you? Contact us today to discuss your CAE software needs.

RITAL is registered trademark of Concepts NREC LLC. AxCent and Agile Engineering are registered trademarks of Concepts NREC, LLC. Microsoft is a registered trademark of Microsoft Corporation.