Speed up the wind powered car of the Magnus effect, lift force adjustable

This video proposes a new method of using blades instead of end plates to enhance the Magnus effect, whereby ships can sail faster and more efficiently.
Patents：TWI 710501B，US11143159B2，CN 112141308B
For experimental data：smartservo.org/en/ways-enhance...
More information,refer to：smartservo.org/en/magnus-effec...
Music :
Heading West
by Audionautix.com audionautix.com/
Cruiser Ship 3D Model：Created by Herminio Nieves
free3d.com/zh/3d-model/suncru...

[@andysworkbench]

Very interesting! Thanks for the video.

[@SmartServo_org]

thanks

[@luisblum7464]

check back "Ventifoil" suction wing technology - is a non-rotating suction wing with vents and an internal fans that uses boundary layer suction for maximum effect to generate thrust for the ship. it was used in Alcyone - Jacques Cousteau's Turbosail Ship.

[@petersharp6833]

Additional information: As I recall, the L/D ratio of the Turbosail was 3.5. That seems higher than for Flettner rotors. But Flettner rotors can produce a much higher lift coefficient. The best power to lift ratio for Flettner rotors seems to occur when the spin rate is 4 times the speed of the apparent wind.

[@horstscheruga3114]

How much more energy is necessary to do the rotation with blades? Have you measured this?

[@SmartServo_org]

You can see this => kzbin.info/www/bejne/q5LJg4Sih9t0oa8 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.

[@user-cc2lp9tz7r]

Have you tried adding multiple disks per cylinder with a gap of 0.4mm like in a tesla turbine? PS I really liked your ideas and your content so I subscribed to your channel.

[@SmartServo_org]

Thanks for subscribing and your imagination is very rich. In this video,the disk helps to maintain the pressure difference of the cylinder to increase the Magnus effect, while the disk of the Tesla turbine generates torque by friction with the high-pressure gas, which is very different.

[@petersharp6833]

As I recall, the Thom rotor uses additional discs along the rotor and they are claimed to increase the lift, but I think they also increase the necessary power. So I don't know if they are an advantage.@@SmartServo_org

[@SmartServo_org]

​@@petersharp6833 Yes,The lift-to-drag ratio advantage of the Thom rotor appears at the speed ratio greater than 5. Otherwise, it is not much different from the general endplated rotor. However, the lift-to-drag ratio of the bladed rotor has increased significantly at speed ratio only above 3.

[@nacho_zr]

what it more eficient, a boat with magnus effect or sails? i mean, sailboat size or quite bigger, and for a kind of "river cargo"?

[@SmartServo_org]

Large rotors for ship propulsion could reduce fuel consumption => kzbin.info/www/bejne/fHvXaZ9uZdB6isk

[@petersharp6833]

I recall reading a comment by a NASA engineer. He said that if the energy used to spin the original Flettner rotors was directed to the propeller instead, the total propulsion efficiency would be higher. I don't know if that is true, but it seems worth checking. @@SmartServo_org

[@SmartServo_org]

@@petersharp6833 Each has its own suitable speed.

[@jimmy_james0007]

This might be a silly question but why don't you just measure the force directly? Timing the speed over the rail seems like it introduces all sorts of unnecessary variables to your experiment. Eg weight, vibrations, ect

[@SmartServo_org]

More lift doesn't necessarily mean faster, drag also needs to be considered. Therefore, measuring time is still necessary.

[@jimmy_james0007]

@@SmartServo_org Eventually, but atm you are getting data that is way too generalised to make any serious improvements to the design. For example, how do you know that you have made improvements in propulsion rather than stability? Stability vs propulsion is a well known consideration in any rotor craft. That rig doesn't look anywhere near rigid enough to control for this variable, you can actually see it wobbling in a couple of your experiments.

[@klausbrinck2137]

He is right, how can u say, that the turbine (the old AND the new) wouldn´t deliver 5x higher results, if the losses in this set-up weren´t there and so obvious??? Thus relativating your results. It´s like in a velomobile. It needs to be pedaled at 184W to drive constantly at 60km/h, but if u replace the cyclist´s spinning feet (that make the whole velomobile whobble all around) with a tiny e-motor, then u need less than 184W for keeping at 60km/h.

[@kazemamin2855]

Wawwww😘👍👍👍👍👍👍👍. YOU ARE EDISSON. 😇🥰✌👍✌. AFG

[@SmartServo_org]

thanks

[@Jkauppa]

make that a normal drum vawt with surface drum directional blade pouches

[@Jkauppa]

its also self-starting by wind

[@Jkauppa]

scam, downwards slope

[@Jkauppa]

so making a virtual sail are you

[@Jkauppa]

a=g when sliding downhill

[@Jkauppa]

patent scam, US do your own stuff, none will trade with you