Generic Blade with NACA curve

[Guest Mr. Gabriel Gnaegi]

Hi,

 

I am quite new to CAESES and i've done certain tutorial. I am interested in this CAESES particularly for the parametric blade generation.

 

In the tutorial Generic Blade, we are able to generate a blade with NACA 4DS which require profile parameters such as camber, chord length, thickness etc. and I think I understood the logic behind the setup. 

 

Now i am interested in doing the same blade generation but i want to use the Curve--> NACA 66-412 profile. I must say i don't really understand how this works because I can't set the chord length or so in the setup.

 

Is it possible to generate a 3D blade by section like the NACA 4DS tutorial but by using a define profile (NACA 66-xxx)?

 

Thank you in advance for you time and you answers.

 

Regards,

 

Gabriel G.

[Matthias Maasch 21]

Dear Gabriel,

 

The profile type has to be defined within the feature definition which is used in the curve engine. Please see the screenshot below.

 

 

In the feature line 7 initially defined the profile type by tc, liftcoeff and a. Another option would be to define the type by actually choosing the provided types. I implemented this option in the feature in line 6.

 

In the attached sample project you are now able to choose the NACA type in the curve engine |00_blade|NACA. If you have problems to understand the meaning of curve engines and features, please do some tutorials about Features and Meta Surface.

 

Cheers

 

Matthias

propeller_sample_66_412.fdb

[Guest Mr. Gabriel Gnaegi]

Dear Matthias,

 

Thank you very much for your answer.

I suspected that function needed to be written in the feature definition but i wasn't able to manage how to write the parameters.

Thanks to your file i was able to design the propeller i wanted to do. 

 

Cheers,

 

Gabriel G.