Learning Forum

[guilherme.righetto]

Hi guys,

Would you recommend which approach of modelling concerning an axial blade geometry - below is the fictional configuration I want, that will be three fixed NACA profiles, with interpolation profiles beetween them with controled angles:

 

 

Thank you!

[RS]

You can try with Bladegen or BladeEditor. Using either of tools, can define the blade geometry with the different profiles you are having at various span locations. Bladegen and BladeEditor are specifically designed to handle stacking of different airfoil sections along the span, which is exactly what your configuration requires.

Chapter 9: BladeGen   

Chapter 10: BladeEditor

Also sharing below Ansys Turbo system link for your reference. 

TurboSystem User's Guide

[guilherme.righetto]

Do you know any source of material that can help to translate NACA curves (like 4415) into bezier curves using bladegen? Having some trouble with that.

[RS]

Need to first design the Blade in BladeGen. Begin by designing the blade in BladeGen. This involves setting up the initial parameters and configurations for your blade design.

After blade designelect, now can change the curve type. Choose the curve you want to parameterize. Right-click on the curve, select 'Segment type', and change it to 'Piecewise Linear Segment'. By default, this would be a Bezier segment. This step is crucial for making the curve available for further parameterization in the Blade Editor.Refer attached link. BladeGen Blade Parameterization

Now can go ahead to create the geometry. Once the curve type is set, create the geometry from this BladeGen design. This will allow the specific curve to be available in the Blade Editor for parameterization. 

Next convert to Bezier in BladeEditor. In the BladeEditor, set the Angle Definition Type to Beta. Right-click in the Angle view and select 'Convert to Bezier'. In the dialog box, set the number of points to 5 and click OK. This will convert the angle curve into a Bezier spline controlled by 5 points. You can manually adjust the coordinates of these points to refine the curve. 

The above method helps to get Bezier curves.

[guilherme.righetto]

I'm getting an error while doing so, it cant generate the blades profiles:

 

[guilherme.righetto]

I think I got it how to do that (imagem below). Now I can control the profiles and thickness distribution to create a NACA profile. Now, how can I control chord lenght as they are controled by TE and LE curves? any thougths?