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Registered Member #2939
Joined: Fri Jun 25 2010, 04:25AM
Location:
Posts: 615
I cant tell from your diagram if those things are hollow or solid or if hollow , which is the open face. If you want useful commentary you need to step back and ask yourself if there is enough info on your diagram for someone to build the thing without knowing whats going on in your head.
The only other comment I would make is that sharp corners are likely to create turbulence, which will lower efficiency. Most drag wind turbines I've seen use curved faces to reduce this.
Registered Member #61406
Joined: Thu Jan 05 2017, 11:31PM
Location:
Posts: 268
Thanks for the link, there's a company that sells fandp complete sets, I'm not sure if I will put neos in to them, they say the 36pole stator can make 1.2kw. The design is like the ones with the plastic drum but instead of a half circle it's a wedge, was thing moving up stream it would slice through easyer. The wind is going from left to right.
Registered Member #3414
Joined: Sun Nov 14 2010, 05:05PM
Location: UK
Posts: 4245
There's a computer program for blade design, the name escapes me at the moment.....Cfoil.....or something. Patrick might remember. It takes a bit of sussing out, but it is straightforward.
Registered Member #61406
Joined: Thu Jan 05 2017, 11:31PM
Location:
Posts: 268
Yes, but at the moment I've simply erred to a flat sheet with a casing stopping the advance wind, the down side the torque isn't stable, and the wind direction effects it. if you have a good suggestion will look into it. Cheers mate
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