Freely Rotating Torus in a Bath of Particles

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Freely Rotating Torus in a Bath of Particles

Postby Chelle » Sat Aug 20, 2011 2:31 pm

Dear Newtonians,


I'm working on a physics simulation in Blender, but the Bullet engine implementation is far to underdeveloped for the concept that I want to realize. Therefor I'm posting her in yours Newton Game Dynamic forum with 2 questions:

- Is it possible to set up a 3D volume with viscoelastic-particles like in this clip at 2:38
http://www.youtube.com/watch?v=pyzvV8LwS-Y

- If so, would it be possible to have a freely moving propeller (torpedo) steering up these gaseous particles, within the volume, and being pushed forward, similar to the paddle-boat in this clip:
http://www.youtube.com/watch?v=hfmg0uRcHBY


The reason for those 2 questions is because, I'm working on a Science-Fictional concept of physics particles (electrons-photons), that are Torus or 8-shaped mechanisms. And I'm looking for a way to simulate the behavior of them as rotor-systems in a bath of particles (Aether). It sounds a bit complicated and too far-out, but it is actually a simple logical build-up.

Here's a short introduction:

The starting point of the idea are toruses that have a screw like structure, because of the rotation of this screw-like structure, and the hole in the middle of the toruses, these toruses have a suction power and a global rotary direction (see below text for links to images).

At close proximity the rotational movement of the spiraled construction of the toruses, generates some nearby turbulence that forces an other torus to be pushed away, and preserving them from getting entangled. But when some pressure is applied, and when they are properly aligned than the toruses could combine their suction forces and start drafting behind each other, and form a bundle (pile).

Because of the global rotary directions, these toruses can only rotate in certain harmonious directions with each other, and thus only a few basic shapes of combined piles can be formed. These structures would be spine-like and would swim around in a medium like a snake, twisting and turning and eventually, if they get to be long enough, able to biting its own tail, and forming a new Torus-structure. The whole process would behave as a fractal where toruses become new toruses (strings).

Here are some short animations:
Torus:
http://youtu.be/MOWULAUeP6s (Torus)
http://www.youtube.com/watch?v=TMxuWxQGGXc (Torus different entanglements)
http://youtu.be/UeH_ZKpW3rc (8-curve)
http://youtu.be/ExIBNeJqbzY (Lift-off)

I'm also working on a real mechanical machine to try out in water:
http://youtu.be/A53CEmaR8J0

The first rotor-constructions and Torus animations were made in Blender, and I wanted to have them spinning in a bath of particles, but Blender's Bullet-physics-engine isn't able to handle the job. So I asked José Jahkr who had a clip on YouTube with a simulation of a simple X-shaped 'mixer' in a bath of particles, if it would be possible to throw the mechanism in his bath, and see if it would spin and paddle forward. As only the principle is important, he didn't use the rotary system, but used a more basic setup. Here you can see some of his simulations:

http://www.youtube.com/watch?v=5XF58rtCYyo
http://www.youtube.com/watch?v=ndQDWQmgejc

These animations give an indication that it works, but the physics engine that he has written is limited, as he can only set the Torus at a fixed position. So the next step is to look for a more deep solution that can handle this set-up, whereby the Torus can move freely like the paddle boat in that YouTube clip.

The reason for my second question regarding a Visco-Elastic fluid, is because I have a hunch that due to the pressure of the gas, a torus that is given a push (impulse), could keep on spinning automatically forward, instead of being driven from the inside. Here for the principle is, that the inside of the Torus (O), in combination with the spirals, generates a closed area, of changing low and high pressure, where particles from the outside are pulled into, and compressed within the ring (O), and are blown out again. It would be a continuous process, a bit like a combustion motor.

Sorry for giving so much (chaotic) information at once ... please take a little time to digest it, and I'm sure that y'all get a grip on it, and if you have some questions please feel free to ask.

As you'll probably have noticed this isn't a commercial project but rather a curiosity driven thing … and so I'm looking for a particle expert that would like and could give it a go. At a first step just with 'normal' particles and later if possible with disco-elastic ones. I don't think that it is a lot of work to set it up, tweaking and rendering will be the most time consuming. I know its a bit of a wild idea, but if it works some cool things could come out of it.

One of the goals is to try out the Double-slit experiment:
http://www.blacklightpower.com/theory/DoubleSlit.shtml

... and test the idea of the 'Pilot Wave' concept of Bohmian Mechanics:
http://www.mathematik.uni-muenchen.de/~ ... startE.htm

I'm hoping that I haven't scared anyone, and I'm really looking forward to hear from one or all of you, and your experts view(s).

kind regards,

michel

------
http://800millionparticles.blogspot.com
------


Here ares some notes and images regarding the idea:

--

The basic torus formation is build up out of 2 x 4 tori squares <><>

The Blue & Purple ones spin in an opposite direction than the Red ones.

The reason for this set-up is that all Tori should spin together in harmony. If they would be in triangles, two of the 'touching' tori would rotate in the same direction (clock-wise) and cause friction.

Image
Image


These basic formations were placed in a circle 360° / 2.5° = 144 sets (Bx)

Each following set (Bx1, Bx2, Bx 3... Bx144) was given a twist (2.5°) around its center axis (0°, 2.5°, 5°, 7.5°, ..., 357.5°) so they fit nicely around the circle. This number could be changed to 5° or 7.5° etc. depending on the number of tori used per 360° , and by doing so changing the number of twist. The important thing is that they end up with at least a 180° twist, so they close the loop fluently.

Image


--

Two images from José's animations, he used a 3-scoops setup. Note, the whole Torus doesn't move, it are only the 'steps' that rotate around their position, thats why the scoops are in RGB, and only half a torus, so it is visually clear that it stands still.

Image

Image

--

A first rough sketch of the concept:

Image

--

The mechanical prototype to try out in water:

Image

Because of the shape of the rotors they are also a paddle wheel like a 'Mississippi steam boat' and thus the whole would move sideways forward as shown with the big arrow, in the next image at point d. Forward movement of the New Torus

Image

Image

--

Here the model is given a black & white coloring to mark the spinning in water:

Image


--

The mechanical designs:

Image

Image

Image

Image
---

These are images of how a pile takes shape:

Toruses have a suction power and rotational spin, due to drafting they can combine into a solid structure that is bendable:

Image

Because of flexibility each base can phase-shift a few degrees and when completing the circle, twists would be generated along the circular curve:

Image

These spines can twist and turn until they complete the circle like an ouroboros:

Image

Image

--

A simulation could be done in a regular volume (cube), but also in a closed tube. A spinning torus could than be placed at a fixed point and flow could be measured, or 'et go so it could move freely around.

Image

For the medium in which the torus is places, a few colored particles (markers) could be added to visualize the currents, while all other particles stay blank, so the Torus can be observed.

Image

--

The next step would be to see if two tori that are pushed together would align, but still push each other slightly away because of their rotary motion, and join their currents, connect, and becoming one:

Image

--

An other test would be to see if an '8' formation would spiral forward, like a fastener:

http://www.youtube.com/watch?v=ExIBNeJqbzY
http://www.youtube.com/watch?v=lcBIial3eq8

Image

--

The original idea for using an '8' came from a wooden windmill spiral thing, which uses simple sticks. José used a similar construction to set up his torus with 3 spikes.

Image

--

The Double-Slit Experiment
Image

--

p.s. I know less is more, but I thought I give it you all, all at once ... at the end it just about a basic rotaring Torus in a bath of particles moving forward.
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Re: Freely Rotating Torus in a Bath of Particles

Postby JernejL » Sat Aug 20, 2011 4:17 pm

I do not quite understand how you intend to connect a circular multi-paddle with quantum mechanics.

In any case if you want to simulate a lot of particles with newton, this might be possible with newton in double precision + enough raw cpu power to throw at it to simulate it.
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Re: Freely Rotating Torus in a Bath of Particles

Postby Chelle » Sat Aug 20, 2011 5:01 pm

JernejL wrote:I do not quite understand how you intend to connect a circular multi-paddle with quantum mechanics.

Because the object would spin around and move forward, 'spin' is a quantum mechanical property. Also it would have a perpendicular pilot-wave and thus have the particle-wave duality. I've added an extra sketch of how it would work, seen from the side:

Image

In any case if you want to simulate a lot of particles with newton, this might be possible with newton in double precision + enough raw cpu power to throw at it to simulate it.

Great.

The question now is, if someone is willing to trow the thing into their particle tub, to see if it would whirl forward as predicted :)

I haven't got a (big) budget but i can pay for some compensation, its been bugging me for a long time now, and i would like to find out. It doesn't need to look good, its only about the principle. If i know that it works than i could go look for a real budget to try different settings such as size, number of twits, different shapes, drafting etc.

best,

michel.
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Re: Freely Rotating Torus in a Bath of Particles

Postby Julio Jerez » Sat Aug 20, 2011 6:55 pm

sorry no quantum mechnics here.
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Re: Freely Rotating Torus in a Bath of Particles

Postby JernejL » Sat Aug 20, 2011 7:06 pm

I don't think that ANY software physics engine can simulate that kind of low level of physics simulation, especially since none of conventional physics engines created for rigid body physics are based on quantum phenomena.. it would likely not work the same as in "real world" scenario..
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Re: Freely Rotating Torus in a Bath of Particles

Postby Chelle » Sat Aug 20, 2011 11:46 pm

Julio Jerez wrote:sorry no quantum mechnics here.

No no this isn't 'quantum mechanics' the result might just correspond, thats the point.

Because of the number of twists on the torus it would have a specific vibration frequency, and distort the volume (waves) differently than as it would be 'shot' through an empty vacuum, with as possible result an interference pattern.
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Re: Freely Rotating Torus in a Bath of Particles

Postby Chelle » Sat Aug 20, 2011 11:54 pm

JernejL wrote:I don't think that ANY software physics engine can simulate that kind of low level of physics simulation, especially since none of conventional physics engines created for rigid body physics are based on quantum phenomena.. it would likely not work the same as in "real world" scenario..

That is indeed the question, does a second slit give a different result in a physics engine than only one.

What would be the biggest issue?
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Re: Freely Rotating Torus in a Bath of Particles

Postby JernejL » Sun Aug 21, 2011 6:51 am

rigid body physics engines don't simulate wave-frequency behavior or wave-particle duality..
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Re: Freely Rotating Torus in a Bath of Particles

Postby Chelle » Sun Aug 21, 2011 7:24 am

JernejL wrote:rigid body physics engines don't simulate wave-frequency behavior or wave-particle duality..

Hi JernejL,

I think that you are seeing it too complicated.

Try to see it this way, if you have a little propelled motorboat moving trough water (particles) crossing a lake, would a little island on the side, cause the motorboat to deviate from its path due to the riples and compression of the water?

Or in case of the experiment, would a second slit cause the rotating torus to be deviated into certain directions due to the waves that it generates in the medium. If there wasn't a second slit there wouldn't be any interfering movement beyond the slit.

So nothing else than waves caused by the object, changing the path of the objec, only the waves travel faster than the object, but also along with the object at the speed of the object: pilot-waves.

best,

m.
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Re: Freely Rotating Torus in a Bath of Particles

Postby JernejL » Sun Aug 21, 2011 8:40 am

Well i guess you can try that - set up newton with double precision library & throw enough cpu power at it.
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Re: Freely Rotating Torus in a Bath of Particles

Postby Chelle » Sun Aug 21, 2011 11:01 am

JernejL wrote:Well i guess you can try that - set up newton with double precision library & throw enough cpu power at it.

Allright.

The problem for me now is that I'm not a coder, keyframing animations in Blender is the farthest i can get. Isn't anyone willing, or does someone know a developer who could give this a try? Because its been buggin' me for some time now ... perhaps i should just take the time to learn Newton.

btw i still have one unanswered question:
- Is it possible to set up a 3D volume with viscoelastic-particles like in this clip at 2:38
http://www.youtube.com/watch?v=pyzvV8LwS-Y


Thanks,

m.
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