Modified Helical Darrieus Wind Turbine Blade
grabcad
A publication can be found at http://www.iaeng.org/publication/WCE2018/WCE2018_pp586-595.pdf detailing improvements on the Helical Darrieus Wind Turbine Blade. The improvements are based on aerodynamic principles similar to a Rear Wing (similar dimensions as Formula One), Modified 10x4.7 Propeller, and Modified Rotor Blade - all entries for the GrabCAD challenge. The white blade is said to be more aerodynamically efficient than the black one. However, access to a 3D printer is not available; engineering judgment suggests that these blades can be printed without issues if flipped perpendicular to the rotational axis. Baseline blade files are also attached for fluid dynamics analysis.
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