Designing wind turbine blades is about balancing aerodynamic performance and structural integrity, but design and analysis is often disconnected from the blade manufacturing process.
Wind Turbine Blade with airfoils s823 (root) and S822 (tip), This Blade is for 5kw wind turbine. Blade length: 3 m. Made with Autodesk Inventor 2009 software.
You can check out the links below for free CAD models, but If you want to download them you have to register in these websites.
Another option for you is to build your own 3D CAD model of wind turbine blade using appropriate CAD software and following some video-tutorials in YouTube (like shown in the last link for example).
Sorry to revive this old thread, but i wanted to ask if you managed to obtain some open source CAD data for horizontal axis wind turbines and their corresponding performance measurements?