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Version 4.26 available with new propeller features

What’s Changed

Modeling and Analysis

> Improved Propeller optimization demo model
> Demo propellers now correctly show sweep and dihedral
> Analysis (including optimizations) use all available cores by default
> Demo wings and props use CMAES Optimizer by default


> Improved fidelity and robustness through Rankine core model on vortex filaments
> Aerodynamic center computed for all angles of attack
> Atmospheric model adopts ISO 2533:1975: International Standard Atmosphere

New features

> Extended propeller results and plots, e.g. Figure of merit, local lift coefficient
> Propeller torque optimization constraint


> Source panels nearfield formula
> Estimation of required memory
> Links pointing to the new website
> And many minor fixes…

Version 4.25 available with improved wake model for propellers, and more

In this update:

Updated solver with improved wake model (concerns only propellers)
New and improved quick-start models available through the Quick-Start menu in the app.
Updated license options and pricing. For more information, visit the Store.

Version 4.24 available

Update summary:

  • Span-efficiency factor (aka Oswald factor) included in results (and available as objective for optimizations)
  • Drag-and-Drop: Aeolus ASP model files (*.xml) and CAD files (*.stp, *.obj, *.x3d) can be easily loaded through drag and drop
  • New result charts of Center-of-pressure and Aerodynamic-center locations
  • New result chart Cmy(Cl)
  • Results include figures on the required power and thrust for level flight at different speeds
  • Airfoil drop-down list is now searchable
  • Lift distribution plot: added the elliptical reference curve
  • New line force distribution view in 3d shows the strip-wise force components
  • Optimization-, and Parameter-study progress panels are now equipped with chart controls to zoom in/out
  • Improved the force balance 3d view
  • CAD Model import transformations sequence improved and text fields aligned with this new sequence to make it more intuitive
  • Aircraft reference surface changed to the sum of the reference surfaces of all wings in the model. Same with MAC, taken as the surface-weighted average.
  • Fixed the sign of Cdi in the span-wise distribution charts. Now, local strip-wise thrust is shown as negative Cdi
  • Password reset feature available in the sign-in panel
  • As usual: bug fixes and performance improvements
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