WhalePower, a wind turbine light inspired by whale fins

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WhalePower, a wind turbine light inspired by whale fins




by Christophe » 11/03/09, 13:53

WhalePower or the Power of Whales?

Under this name is not hidden a whale defense association but an innovative company in wind power.

I have not yet understood the usefulness of erodynamics but apparently it allows + 20% of energy productivity. Don't laugh, it's very serious! See the pdf below!

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Pdf to read here

What do aviation specialists think? Looping? Andrew? Maybe Maloche?

Official website: http://www.whalepower.com/
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by Obelix » 11/03/09, 14:16

Hello,

Technically the wind turbines reach an acceptable output the only unknown is the adequacy between this output and the availability instead of the installation.
For this the yield is not a thunderbolt of war (Fig 10-1) but still presents a good interesting range!

Current yields are around 40% minimum but sharper in their appearance!

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by Capt_Maloche » 11/03/09, 14:28

Should ask André

that will undoubtedly have the effect of disturbing the trailing edge and increasing the actual surface area for windward movement, or else the opposite effect by reducing the drag (what does the pdf say?)

A bit like the turbulators mounted on the upper surface of airplane wing profiles to disturb the air flow and push the stall threshold down by ten degrees
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by Christophe » 11/03/09, 14:29

Yes or shark skins increasing the roughness and thus the boundary layer ultimately reducing the overall friction compared to a smooth surface ... but here in this case it is the opposite that we are looking for :)
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by highfly-addict » 11/03/09, 14:45

Capt_Maloche wrote:that will undoubtedly have the effect of disturbing the trailing edge and increasing the actual surface area for windward movement, or else the opposite effect by reducing the drag (what does the pdf say?)


He says the protrusions are on the leading edge, but not much more.

The idea is original but leaves me skeptical. Why should nature (or evolution or whatever you want) neglect to equip the wings of birds if it is really interesting?

Transposing the concept into the tidal stream would seem more coherent to me.
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by Christophe » 11/03/09, 14:49

highflyaddict wrote:The idea is original but leaves me skeptical. Why should nature (or evolution or whatever you want) neglect to equip the wings of birds if it is really interesting?


Well, they do: the trailing edge of a bird's wing is not "smooth" ...

highflyaddict wrote:Transposing the concept into the tidal stream would seem more coherent to me.


Yes ... especially since the dimensions are apparently similar to that of a whale ... which contradicts the laws of similitude (unless the whale has these "shapes" just for when it ... jump out of the water? : Mrgreen: )

Finally the ingenes have positive measures for them so apparently it still has an effect in the air
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by highfly-addict » 11/03/09, 15:06

Christophe wrote:
highflyaddict wrote:The idea is original but leaves me skeptical. Why should nature (or evolution or whatever you want) neglect to equip the wings of birds if it is really interesting?


Well, they do: the trailing edge of a bird's wing is not "smooth" ...


HU? : Shock: cf sentence located immediately above the quotation above in the original post ....

Tired Christophe?
: Mrgreen:
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by Christophe » 11/03/09, 15:08

Uh it seems to me that I answer your "pkoi nature ..." no?

We have nozzles and kites at home that "circle" around the house, it's very interesting to see them fly from an aerodynamic point of view ...

ps: pkoi always these "personal attacks"? :frown:
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by highfly-addict » 11/03/09, 15:14

Houla!

Sorry if you take this for a personal attack, it is not.

It’s not even an attack! But you're talking to me about the trailing edge while I'm talking about the leading edge!

So I correct / resume my sentence: "The idea is original but leaves me skeptical. Why nature (or evolution or whatever) would have neglected to equip the leading edge wings of birds if it's really interesting?

Here!
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by Christophe » 11/03/09, 15:20

As much for me I thought that the "tubers" were located on the trailing edge (the whales have two sides) ("leading edge" in the .pdf)

So I withdraw my answer to the birds! : Cheesy: or rather I rectify it! Nature has not put it because a potato is probably too heavy : Mrgreen:

Seriously I don't know ...

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