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My Swirled VAWT Idea | 20 comments (20 topical, 0 editorial)
Re: My Swirled VAWT Idea (3.00 / 0) (#19)
by colej (colej@castle-ranch.com) on Wed Sep 3rd, 2008 at 06:06:12 PM MST
(User Info)

Howdy Woof,
After thinking about your idea most of the night, I came up with this modification that may overcome the drawbacks of the upwind drag. This idea uses your "folding" wing idea and is capturing the wind energy not only on the downwind side, but also a little bit of force from the wing in the rear acting like an airfoil. I got the idea today when I saw a machine running with an articulating cable tray (like on CNC machines) these cable trays are many links that make up a race and they only bend in one direction and are stiff as a board in the other (called "Goretrac" or Nylatrac). If you were to make a wing of this sort of articulation, maybe the drag would be reduced to a bare minimum. it would still flap from one side to the other, but maybe it would work.
I'm going to lay hands on some of that material and build a model as soon as i can. I'll let you know how it goes.

lay out two equal lengths of Goretrac with dowels of some sort to keep them seperate then cover the dowels with a flexible durable fabric to bend with the Goretrac. it'll be stiff with the wind and flexible against.



My Swirled VAWT Idea | 20 comments (20 topical, 0 editorial)

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