A new way to enhance the Magnus effect, faster and more efficient
Вставка
- Опубліковано 15 вер 2024
- This video proposes a new method of using blades instead of end plates to enhance the Magnus effect, by which lift and lift-to-drag ratios can be increased above a certain velocity ratio.
Patents：TWI 710501B，US11143159B2，CN 112141308B
For experimental data：smartservo.org/...
More information,refer to：smartservo.org/...
Music :
Heading West
by Audionautix.com audionautix.com/
Cruiser Ship 3D Model：Created by Herminio Nieves
free3d.com/zh/...
this is really interesting and useful knoweldge video, thanks. Oneday, I'll build vessel with this technology
Thank you for your appreciation and wish you can realize it soon
Awesome !
Just awesome to see people inventing new and better things/ improving already existing Designs ^^
Keep up the good work :D
Thank you for watching and motivating, and you are welcome to watch the linear acceleration video of this invention => ua-cam.com/video/gMym621FtR8/v-deo.html
Excellent video! Carrying the "exhaust" idea to an extreme, what would a stack of end plates do, if they moved air to the shaft's ends?
End plates work well at low speeds, but lift is saturated and drag is high at high speeds. In fact, the end plate can be considered a special case of a blade where the pitch angle is 0 and the solidity is 100%. Increasing the pitch angle as speed increases maintains the best results.
I wonder if you could reduce the pressure on the rotor between the end caps by having the rotor tapered, so that the center is wider than the ends. Another idea is create the rotor using disks like a Tesla turbine, which might have better flow attachment.
Amazing findings! I hope that you can translate this concept into an improved wing design.
This can solve the problem of traditional Magnus effect aircraft without ailerons. The variable pitch can be used to adjust the lift on both sides of the rotor wing to control the roll of the aircraft. => ua-cam.com/video/gMym621FtR8/v-deo.htmlsi=FTBZagAl6b72N1Aw&t=244
Great, great video! This is science!
I live in an area where the wind rarely reaches 2 m/s, so I always excluded any kind of wind generator, I'd be curious to see if this type could work or not.
Probably here solar energy is a better choice, unfortunately.
I would love to build one of these
2 m/s is too low to utilize wind energy. maybe get faster wind speed by raising the altitude. This video is used to demonstrate the method of enhancing the Magnus effect. As for Magnus wind turbine, please refer to => ua-cam.com/video/9AdpggaOfF0/v-deo.htmlsi=R7wUJsnYsU_047aB
I've seen your other video, it's very interesting as well.
Probably it's better to choose another source than wind, at least here, but in more windy areas, it will probably be a good choice.
Is there any difference between this type of vertical turbine, and the horizontal with propellers in terms of how much energy is required to start rotating?
Clean presentation and explanations of this idea.
explain
That can be an interesting compare.
Magness
1) the same wind forces on motor via current draw at speed, measure rpm, current, drag and lift plus there angles for vectorous math.
this can tell you the effective diameter compared to the new effective area with boundary layer collapse.
Very cool!
When are you going to build an RC plane and post?
:)
fing grougle post
Clean presentation and explanations of this idea.
Another effect that can be significant part of the efficiency (or another way to explain it) is the end exhaust creates a vacuum at surface of cylinder, breaking down boundary layers and thus smaller EFFECTIVE diameter.
That can be an interesting compare.
Shrink original flat plate Magness, until:
1) the same wind forces on motor via current draw at speed, measure rpm, current, drag and lift plus there angles for vectorous math.
this can tell you the effective diameter compared to the new effective area with boundary layer collapse.
Very cool!
When are you going to build an RC plane and post?
:)
pick what to normalize to heading vector force - extra side drag force (ship)
motor current or rpm or power or power, current, & rpm
@@rondavison8475 Thanks for watching and suggestions, some comparative experiments on endplates and blades are linked as => smartservo.org/en/ways-enhance-magnus-effect-en/
Next step I'll do linear motion testing of the rotor with end plates or blades to show if the new method can make the ship faster.As for rotor-wing aircraft, the new method also has the opportunity to solve its inherent problem of "roll control".
Those counter rotating cylinders would have a gyroscopic effect that would stress the axes to death and most likely would bust it.
Interesting! Seems like this indeed increases the magnus effect. Does is increase the effect even further with more bladed sections around a cylinder (not just at the ends)? Like compression steps in a jet engine.
This idea should work, and being able to exhaust from both ends of the cylinder would work.
E excellent i love these sort of videos. Thank you for sharing❤❤❤❤
thank you for your appreciation
Have you tried putting holes thoughout the rotor and using an onboard fan to create a small negative air pressure; this could reduce the boundry layer and the air could be moved by the same motor that drives the rotor for simplicity.
I think the method you mentioned should work, similar to patent JP2010121518 Fig 6a, But I don't want to punch holes in the circular surface of the cylinder because it would complicate the structure.
Does evacuation via bladed ends reduce the effect of surface roughness on lift?
Exhausting air through the blade end can increase the air flow and reduce resistance without affecting other characteristics.
Hi I'm exploring energy system ideas for African homes. Would you be open to working together to deploy these systems and testing them in Africa?
Most of the videos are just concepts, and some have already taken shape. All implementation details will be published on the website in the future. Welcome to refer to smartservo.org/en/magnus-effect-vawt-main-en/
The difference is so small...
Power and speed are not just linear relationships, but cubic relationships
Don't forget, the fans cause drag, and would require more power to rotate.
You can see here => ua-cam.com/video/uafRQlRvAkM/v-deo.html
Comparing the endplates and blades at the same current, even though the bladed cylinder (1800 rpm) is slower than the endplate cylinder (2000 rpm), the turbine using the bladed cylinder is still faster. In addition, the main sources of energy consumption are: 1. The drag of the blades, 2. The friction of the cylinder's bearing. As the size of the cylinder increases, the former increases to the power of 2 (area) and the latter increases to the power of 3 (volume or mass). Therefore, when the size of the cylinder is very large, such as the propulsion of a ship, the energy consumption of the former will be much lower than that of the latter. and when the same Magnus thrust is generated, the rotation speed of the bladed cylinder is lower than that of the cylinder with endplates. This means that the blades can significantly reduce the frictional energy consumption of the cylinder.
I agree the increase in turbine power is due entirely to an increase in efficiency.
However,
rotation speed isn't as important as the load on the friction of the bearings.
It puts greater load on the bearings to be transmitting 15% more power than it does with the same power at 15% higher rpm, right? The greater turbine output efficiency is due to the higher lift to drag resulting from blades vectoring the lift closer to 90⁰ from the apparent incoming wind thus increasing its torque rather than RPM.
Am I making sense?