IMPORTANT: The plant (Typha Latifolia) I proposed as a source material for this simulated "feather" / "fluff" layer: apparently causes allergy on some people. Not good source as a solution to such "problem", as it might start to cause
real problems for allergics. Also, I'm not sure it could be formed into feathery layer I'm proposing.
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Indeed they apparently have "unspoken" agendas, as they complain loudly in special media "documentaries" about the "unacceptable dangers" of wind energy as when compared to "traditional" (I.E. not the "new" and "unpredictable" wind energy) centralized powerplants. But this was an excuse enough for me to start looking into this theory about reducing drag and turbulence.
Perhaps the "fluff" was a misleading word: I did not mean for it to "soften" any possible impacts, for I have seen such turbulence reducing on wings: Bird's wings.
To clarify few things: If you build a hydrodynamic model of dolphin, and try to propel / launch it through a body of water, it will not reach the same energy / speed ratios as actual dolphin (of same size, shape, and weight) does. Not unless it has a softening layer of skin and fat that allows water turbulence to "wear itself down" or "flow freely" on the soft recesses it forms, thus reducing drag. (Correct me if this has been proved a hoax, or just been biased research, etc., i.e. if my theory was based on unreliable data). It just seems to me that weathered wings do the same thing with air. If you watch on a film any big bird in mid-flight (especially in smooth slow motion, as the spectacular nature documentaries often like to display it), like albatross or vulture, where it is shown in mid-flight, but remains at the center of the screen (camera with telescope objective has followed it's flight, keeping the observation angle relatively constant), you can see it's individual feathers, and feather-areas being ruffled this way and that, without these turbulences apparently affecting the bird's flight, as the feather layer yields to it. This was my Idea, for turbulence reduction in general, in wings.
This layer of "fluff" I propose, would have to effectively simulate that "feather effect": Light and aerodynamically yielding to minor turbulences. Preferably resistant to water too. This might (or might not) reduce such turbulence effect, drag, twist and noise on many types of wings (depending of the actual airspeeds: I don't think there's much benefit on much higher speeds than for which the feathers seem to have evolved).
I guess I'll have to just get some real feathers and start to test this on small scale models of wind turbines, check their rpm:s and outputs with various "feather" layer simulation techniques at different windspeeds.
Pseudomax
That's why the poll: "does this type of theoretic musing belong here"