Magnetic flux control idea

[Low-Q]

Hi,


Do you remember this guy? https://www.youtube.com/watch?reload=9&v=wI7j6YYZ8-I
Look at the wheel and how its made. Attached picture is his work. Not my idea. His intensions is very different from mine, but the physical construction is very similar on mine.
Instead of using water and buoyancy, I want to (first of all make a much smaller model) replace the tubes with rod magnets that is polarized through diameter - or just steel rods.


What is left outside the wheels is larger portions of visible magnets or steel rods at the narrow end, and smaller portion of visible magnets or steel rods at the wide end.
Now, if we let the magnetic poles go radially, so north is ponting outwards for all magnets.
Then fill the volume inside with ferrofluid. Or just use steel rods.


Inside the wheel the magnetic field is closed in a narrow loop that is kept inside the ferrofluid, but outside in the air the magnetic field is stretching further out.
Then we place long magnets above or under, and on the outside of the wheels along the plane with them. So now the narrow ends that expose more rotormagnet repel or attract the stationary magnets more than the wide end does.


What I try to mimick is the experiment similar to the curie point motor. Making the area ahead of the stator magnet more attractive than the area after.


It's late, so I will make some drawings tomorrow if you don't quite understand what I mean.

[Low-Q]

Here is a simple sketch with steel rods.


Steel rods as grey
Magnet
Ferrofluid as brown.


Keep in mind that the narrow and wide end of these wheels stays in the same orientation when the wheels turn.


Vidar

[Low-Q]

I made some simulations in FEMM. I can simulate in only one plane, and the depth of each parts is the samw in FEMM. That means this simulation is not telling everything.
I tried to simulate six different positions of the wheel, just to see how the Y-axis force is. At 30° angles it is lots of uncertainties wether the results ends up in wanted torque or not. I hope the attached images speaks for itself.


Vidar

[Low-Q]

The grey transparent areas in the images in previous post is the with of magnetic material in the wheel that depends on the position of the steel rod (green).
Also, the magnet at the bottom points its poles horizontally. N to the left and S to the right, or vica verca.


Vidar

[shylo]

Hi Vidar,
how is the ferro-fluid orientated inside the wheel?
At the narrow point is it the same volume compressed, at the wide point same volume stretched thin?
Thanks artv