Salient White Elephant

March 25, 2009

Planar Rotor

It seems to me that there is only one path for rotor blades that delivers the ideal aerodynamic performance:

Aerodynamically Ideal Oblong Rotor Blade Path

The long dimension of this path can be horizontal, vertical, or it can be anything in between. In other words, as long as the long dimension of this path is at a right angle to the approaching wind, then the path is ideal. (Of course, another way of realizing this path is to use a reciprocating design in which the airfoil exactly retraces its path when it changes directions.) Here’s one way to implement an ideal path:

Downwind View of Planar Rotor

Side View of Cutaway of One End of TrackAerial View of One End of Airfoil Track

Here’s another way to realize an ideal path: Direct Drive Linear Turbine with Yawing Oblong Track.

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