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    Fauceted Wind Turbine, Reynolds number advice please

    Looking at the data it seems they are using a different set of measurements to create the 70% number, and it's interesting that they don't have any engineer signing off on their data. Instead of using the standard swept area section, they are using a cylinder. They seem to be selling 3...
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    Fauceted Wind Turbine, Reynolds number advice please

    I agree, and the easiest access to that Data is to google "A VAWT retrospective" published by NREL in maybe 2005, where they go over all their data and results. In short, they had tropenskine Darius turbines over 100ft tall, that regularly reached 40%+ efficiency. However to get that level...
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    Fauceted Wind Turbine, Reynolds number advice please

    Thanks so much for this link! I've been saying that the Betz is not properly applied to VAWT's since about 2006. I'm not really confident in their numeric simulation in this paper, which is the "proof" they have that VAWT's may have a higher limit. I've talked with experts in CFD flow...
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    More of my random designs

    I agree Sockmonkey, there's many developments that stalled for reasons unrelated to the technology, and are now considered technological dead ends. It looks like the Faucetmobile almost fell into this category. Imagine if Barnaby had been killed in the crash of the Faucetmobile, would anyone...
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    Fauceted Wind Turbine, Reynolds number advice please

    This video is really just a preview, I'll make more and post more details once I've done some testing and can make a good comparison between this and my previous design. I've got some data on my website artinventing.com but not a lot. I do have a letter from the engineer who did some testing...
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    Fauceted Wind Turbine, Reynolds number advice please

    Thanks, I agree it doesn't look like a conventional wing. One big difference between what I've found works, and anemometers, is that if you look at an anemometer, it has pretty much the same total frontal area, regardless of it's rotation position, if you look at what I'm doing you can see...
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    Fauceted Wind Turbine, Reynolds number advice please

    Thanks for the suggestion Hot Wings! I am going to start testing soon, and I will try this. I've heard of people using different paint and I think clay washes for this too. Any suggestions on where I can find recipes for mixes for this, or what you call the process? I'm also aiming to...
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    Fauceted Wind Turbine, Reynolds number advice please

    I'm sorry if I miscommunicated, the 59.8% limit was calculated by someone far more knowledgeable than me, I think in the 1930's. Dr Betz, so it's called the Betz limit. No wind turbine has ever exceeded it, that I know of, and so it's still considered as fact by most wind turbine experts...
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    Fauceted Wind Turbine, Reynolds number advice please

    Thanks Proppastie, I've used calculators like this before, however in this case, I'm curious as to others opinions as to what chord length I should use, 1m or .5m, and with a 20km in speed, with the turbine spinning at TSR 1, the outer most part of the turbine, depending on which side you look...
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    Fauceted Wind Turbine, Reynolds number advice please

    Hello to all you amazing experts and passionate amateurs! I've found this forum to be an endless font of practical hard nosed wisdom, and creative, day dreaming CAD jockies and it's been very helpful. Thanks! In about 2010 I created a VAWT design that by my measurements, and the...
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    More of my random designs

    "Still think this one has promise as a practical seaplane. Prop is guarded from spray, tandem so there's enough aft lift to have the engine back there, and the whole front wing is adjustable in pitch for takeoff and trim compensation for a varying passenger load. Plus it doesn't need to pitch...
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    More of my random designs

    I think the high wing forward makes the most sense, however it's also a configuration that's hard to fit into our aesthetic of what an airplane should look like. Is that sketchup that you are modelling in? I used to use it, it got me up to speed so that when I jumped to Fusion, I wasn't a...
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    Push or pull, maybe both.

    NASA has firmly come out in favour of dropping the high vs low pressure explanation of lift, and explains that while the hight and low pressures exist, they are effects of the change in air mass flow, not causes. Foils work when they change the velocity and direction of mass flows. Low...
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    Looking for anthropometric human CAD drawing files

    I think I found some in Grabcad https://grabcad.com/library/articulated-doll-1 not the one I'm using, which is more like your flat cut one.
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    Gayral Circle-Wing STOL (1954)

    Interesting. I wonder if it was inspired by the Russian disk wing with fuselage underneath, or if it inspired it. Chicken or Egg. It's so amazing that idea's were shared at the time. Now I complain about my slow high speed internet connection. They waited for the mail.
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