What you get from PropLab.

Each stage delivers its own results: the 1D design a selection of evaluated designs, the CFD the flow field around your propeller, and the FEM strength and vibration behaviour. All results are available in the portal in your browser, supplemented by reports as PDF.

The images show examples from reference calculations. You receive your results in the same form for your propeller.

The Pareto front and every design in detail.

The design process yields the Pareto front: all designs in which one objective can only be improved at the expense of another. You choose interactively between power, mass and noise and narrow down the selection with sliders according to your priorities.

Each design comes with the key figures per mission point – rotational speed, power, efficiency or figure of merit and blade tip Mach number –, a true-to-scale top view, and the quick check for structure and noise. The design report summarises the results as a PDF, in German and English. The complete blade geometry is part of the CAD model.

RESULT

Pareto front, key figures per mission point, top view

CHECKS

Structure (indicative), noise in dB(A)

DELIVERY

View in the browser, design report as PDF (DE/EN), CAD model as STEP and STL optional

The flow field, layer by layer.

The results of your CFD simulation are presented in our viewer in the browser. All views are already set up, so you can concentrate on the results. No additional software is required.

Each key figure of the simulation is set against the 1D prediction. This shows not only the result itself but also how well the fast design calculation predicted the operating point.

• Surface pressure
• Velocity
• Streamlines
• Blade tip vortices
• Acoustic sources

01 Surface pressurePressure distribution on blades and hub, instantaneous and, for unsteady calculations, also time-averaged.

02 VelocityMagnitude of the flow velocity in the mid-plane, just below the rotor plane and in two wake sections.

03 StreamlinesPath of the air through the rotor plane, coloured by velocity.

04 Blade tip vorticesVortex trails behind the blade tips as an isosurface of the Q-criterion.

05 Acoustic sourcesLocations of noise generation in the flow field, estimated according to Proudman.

KEY FIGURES

Thrust, torque, power, efficiency or figure of merit – each alongside the 1D prediction

CALCULATION TYPE

Steady or unsteady, chosen per flight state

DELIVERY

3D viewer in the browser, technical report as PDF

Strength and natural frequencies of the rotating propeller.

The static structural analysis shows deformation and equivalent stress under centrifugal force at overspeed, as well as the reserve against the permissible stress of the material.

The modal analysis of the loaded model yields the natural frequencies and mode shapes of the rotating propeller. The mode shapes can be viewed as animations in the viewer. The Campbell diagram plots the natural frequencies over rotational speed against the multiples of the rotational frequency – showing whether there are resonances within the operating range.

RESULT

Deformation, equivalent stress, reserve; natural frequencies and mode shapes

PRESENTATION

3D viewer with colour bands and animation, Campbell diagram

MATERIAL

Currently isotropic (PA6-GF30), fibre composites on request

The 1D design is free of charge.