Savonius Magnus Effect by SpiralAirfoil.com

[mattlacey2006]

Hi, I provided some custom parts to you guys. Great to see your end products, very cool. The magnus effect is very interesting, I've read of it, but never seen it. very impressive. -Matt Lacey

[SwiftSilentDedly0321]

how does that have anything to do with Magnus? turbines have no relationship

[spiralairfoil]

Hi Josephdupont, I left a comment on your channels comments page, hope it helps. Thank you.

[josephdupont]

that thing is flying please show us a drawing.

[spiralairfoil]

Hi georgebox100, There are no bearings being used in this simple model, I quickly built it one day just to see what it would do.

[spiralairfoil]

Hi georgebox100, No there are no bearings being used in this simple model, I was just having fun that day and wanted to make a quick model of what was in my head.

[spiralairfoil]

Hi georgebox100, No bearings were used as it was a quick mockup, I just wanted to try it out that day and was happi with the results, further testing really needs to happen.

[georgebox100]

do you have a ballbearings at the bottom ?

[spiralairfoil]

@georgebox100 It was a simple modeling and I did not use any bearings in this first one, I think if everything was better balanced it would have done even better.

[oddballsok]

If you can't prove its efficiency with mathematics, then why don't you connect it to a small generator and compare it with a traditional mill propeller and use the same blower ?

[spiralairfoil]

@oddballsok Hi, I do not need to prove it's efficiency. it was a small model I wanted to try for some time, it worked as well as expected. I have too many Irons in the fire at this time to play around with the concept. By the way, it is an open source project so you might be the won to do further study, after your done you could post them for all to see.

[oddballsok]

@spiralairfoil

Actually i came to this because I am searching for prior art for someone's patent application which has some similarities but not entirely.

Can't tell more about it.

My advice is always present as much detail and support (efficiency proof) as you can and keep proof of the publication date (on internet). Then it can always serve as a prior art basis.

[spiralairfoil]

@oddballsok, I cannot say if there is prior or not, but as far as I am concerned anyone who wants to play with the concept can as I've offered it up to the world. What's in the video is the tip of an ice berg, I can see many different variations possible, I was just having fun that day. The real deal continues to be the hawt SpiralAirfoil. I,ve seen no other instance of this concept anywhere.

[YTBYlover]

so, spiny thingy in a spiny thingy.

[spiralairfoil]

@YTBYlover Hi, yes your correct, Spinny thingies on a spinnie thingy.

[anasbladz]

Can somebody explain to me how the rotors work?

[spiralairfoil]

@anasbladz Hi anabladz, The three small savonious are free wheeling as they spin they create a centripetal force causing the main center disc to turn faster and faster, exceeding that of a savonious alone.

[spiralairfoil]

@thrundar My pleasure, This design is in the baby stage, I can think of countless possible configs for this concept, but alas I've so many irons in the fire that I decided to just give this one up to the world of open source. where anyone can make a sad song better and better til the point of perfection, Chow.

[spiralairfoil]

@thrundar yes a leaf blower was used, about 10 ft away, I figure the wind was about 15 mph by the time it got to the spinner, The three spinning savs definately caused faster rotation, I was surprized by the rpms, I should have gotten a number for the RPMs, it's in storage and I could set er back up, if I can find some time. Have a great day

[MrPizzaman09]

I doubt that this design is any better than a standard savonius because your surface area is rotating, which would lower the apparent speed...

I think it was an awesome idea and very interesting, but not very good for power.

Plus, trying to hook up 4 generators to that would be tricky.

[spiralairfoil]

@MrPizzaman09 Actually, when I ran this wind turbine the speed was much faster then a traditional savonious design, if you watch the video from begining to end you'll realize just how fast she was turning. I envisioned a single generator on the central shaft only. I think there may be more power there then meets the eye due to camera shutter speed.

[MrPizzaman09]

@spiralairfoil It was probably spinning faster, but there should be less torque.

[PsychoticusRex]

Thats not magnus effect.

[spiralairfoil]

PsychoticusRex , Can you explain.

[PsychoticusRex]

@spiralairfoil en wikipedia org wiki Magnus_effect; has nothing to do with a cupped turbine, even if you've got a nested cupped turbine. The Magnus effect allows for high torque, low speed turbine operation, they're also incidentally "bird friendly". Using a couple of cupped turbines to maintain the Magnus effect on attached cylinders would make this a Magnus effect turbine and be very efficient, but this is in fact a nested vertical cupped turbine.

[spiralairfoil]

PsychoticusRex , Are you aware that each Savonious is turning independantly on the central disc, which is also turning? At the end of the video you'll see.

[PsychoticusRex]

@spiralairfoil A small cupped turbine on the END of a Magnus effect turbine to assist spinning at low wind velocities would be good. The ratio of cupped to Magnus-effect turbine is something you'll have to work out as it's a complex function of surface area, design, wetting factor of materials used. Here's a link to a crappy one: This video shows: "NeVClBaQI_Q" an inefficient as hell Magnus-effect turbine because as wind speed increases the spiral vane adds resistance not lift.

[jehovy]

You can create a lot of energy with this.

[spiralairfoil]

Hi jehovy, It too early to tell just what the strengths and weakness is of this design,I've got to many irons in the fire to deal with this design right now. We are still trying to get the Spiralairfoil wind turbine independantly tested. The Spiralairfoil wind turbine is a deffinate go. Thanks for the question, hey if you have an investor in your back pocket that'd be kewl!

[deathstars0]

oh iv never seen this before? so the 3 rotors spin in the same direction causing the whole disk to spin ? it does look interesting but i just recently only took a peek into what the magnus effect is

[spiralairfoil]

Hi deathstarsO, You've got it about right, this is all new concept, it needs further developement, it's an open source project, so I invite anyone to further the developement.

[Martintfre]

Looks very interesting.

Why the Rotors on the Rotor?

[spiralairfoil]

Dear Martinfre, This was an attempt to understand the Magnus effect using savonious rotors, it needs further research, this is just the beginning of this study, it is open source and I give the concept to the world, freely, have a blast.