Magnet Powered Submarine - The Hunt for Red October IRL!
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- Опубліковано 29 жов 2020
- "Invisible. Silent. Stolen. The hunt is on" We make a silent submarine powered by magnets and electricity, aka Magnetohydrodynamics.
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"....I thought I heard.....singing, sir."
Nice reference
IceSam Zero - One ping only please.
Jonesey ... Was a Bio-Logic, whales humping !!
@@JohnColgan. you never saw the hunt for red October have you?
@@Shad0wBoxxer several times, I'm using some artistic licence on the misquote!!
"One ping Vassshily, one ping only.
Its the pong that gets ya
LENZ effect is how my magnetic design works... Same would work for a nuclear submarine... Torroidal center flow... Watch my channel about my All metals isolating magnet...
But captain i-i-i just
How come i heard this Russian command in a Scottish accent???
Including one way the heck out at Pearl.
'Careful what you shoot at in here Ryan. Most things don't react well to bulletshhh'.
Look up the song ‘when you follow your s with an h’ 😂
ua-cam.com/video/LB7f_kZQ9hY/v-deo.html
two things that irk me about that movie...
1. the missile tubes are way too small. The SSN-20 alone has a diameter of 2.4 meters.
2. the tubes are in a free-flood area in between the two main pressure hulls and thus effectively inaccessible.
Yes, yes.. creative license and all that.
Either way I'd recommend everyone who likes that movie to read the book series as well (Hunt for Red October being the 4th book in the series). It is well worth it.
@@ranekeisenkralle8265 wasn't the red October quite a wide ship
@@leexgx supposedly a bit wider and longer than a standard typhoon. Yes. Which by itself is already pretty chunky.
"The world trembled at the sound of our rockets, well they will tremble again, at the sound of our silence"
-Marco Ramius
"The world trembled at the shound of our rocketsh. Well, they will tremble again at the shound of our shilenshe."
-Marco Ramiush
@@RedHeadKevin 😂 Came to say the same thing. Give me a ping, Vashily. One ping only, pleashe.
Most Scottish Lithuanian ever put to screen.
@@RedHeadKevin "While we perform mishille drillsh"
Ooop$ sea 🌊 EVRAZ Russia 🇷🇺 sailing ⛵️ teams sub veRt Lee cLaim$ EVRAZ Chicago USA 🇺🇸 RED October EVRAZ pawn ♟ for Stratcor golf ⛳️ golf ⛳️ and EVRAZ Claymont Steeel DeLaWaRe and 💡 hou$e 💡 in TeLL$ ca ball ⚽️ $
"Captain! The Red October has disappeared off sonar! She's completely undetectable!"
"Really? Someone hand me their Zippo"
🙄😂
That is outstanding!!
Follow the bubbles...
I'd suspect it's magnetic signature might be fairly high too.
I wonder what the efficiency in something like this is, and if there might be a way to capture some of the hydrogen to burn to extend it's range. I know it's part of the mass being ejected out the back to provide thrust, so it would be hard to do at a net gain of energy but it might be worth it if it left less of a trail behind it.
@@nacoran, agreed re the Magnetic signature, unless they could figure out a means to conceal or shield it from external detection, any Aircraft or Ship with a MAD would be able to detect it in a heartbeat!
I love that the first thing it did was a "Crazy Ivan"
^ that comment wins. #MicDrop
..."cause he always goes to starboard at the bottom half of the hour"
One again Comrades, we play our deadly game.
A strange game. The only winning move is not to play. How about a nice game of chess?
@@Hebdomad7 prof. falken is agree
"the order is : Engage the silent drive!"
"aye sir!"
ua-cam.com/video/zsC2ETsZL0g/v-deo.html
Bubbling wouldn't be silent.
It would sound like 2 whales humping or something
Honestly, if they're already doing so much high tech stuff, I'd expect them to be extracting the hydrogen from the exhaust in some way.
@@doubleT84 As I recall in the _BOOK_ Tom Clancy pointed that out. I think he described as being similar to a lava vent hitting water.
I read the novel when I was younger, and worked on a submarine for 8 years. I never thought that the drive used in the book was based on a real principle (although I should have known better with Tom Clancy). Thank you for explaining it in such a clear way!
MHD pumps have been around for over half a century. They are very common on liquid metal cooled nuclear reactors because they are very reliable with no moving parts (taking a pump apart that is handling radioactive liquid sodium potassium alloy is not good for your health).
It actually wasn’t mentioned as being magnetohydrodynamic in the book! That was added in the film
@@allangibson2408 ooo really?
You worked on boats, can you tell us anything about the low frequency communications from Maine? Ultra low?
Fun fact: in the original book by Tom Clancy "The Red October" wasn't being propelled by magnetohydrodynamic drive but rather by a series of screws in the tunnels similar to turbojet compressor system. It was silent, but not silent enough and it couldn't be scaled enough for it to be an efficient submarine drive. Which is why the USA abandoned it a few years before USSR have built "The Red October".
Yup...hate to be that guy, but the book was way better...
@@marksmadhousemetaphysicalm2938
Completely true. So much more happening than shown in the movie.
so the story goes..
If I remember correctly, the stealth drive was called the "caterpillar" in The Hunt For Red October.
That's because it's using an electromagnetic force system - NOT Magneto Hydrodynamics as in this video. An electromagnetic force system crawls like a caterpillar, by creating a peristaltic wave within a tube that forces the water through.
@@WOTArtyNoobs They use both terms -- caterpillar and magneto hydrodynamic -- to refer to the same thing in the film. It's not unusual for films to mix up their technical terminology.
@@WOTArtyNoobs In the book he says they are not sure why it is called the caterpillar. It is also not electromagnetic or magneto. It was a series of impellers.
Red October did NOT use an MHD system but was a series of jet pumps within the hull. Go read the book.
@@francisdavis1271 In the book, jet pumps were described, that's correct. But in the movie, they refer to caterpillar (german: Raupenantrieb) and also MHD. And in addition, when they had a failure, they thought, there could be a problem with the superconductors which would work as a giant electromagnet for generating the magnetic field. That's one of the differences betwwen the book and the movie.
"This is getting out of hand, math nerds are flashing gang signs!"
I ugly laughed when I read this
Science is awesome.
Good movie to watch today. RIP Sean Connery.
No more muckin' with a G! 😔🥀
Would love to see this with:
1) Actual parallel drives so you don't lose force on the internal water channels
2) A narrower submarine with less drag
3) Narrow outlets than inlets to increase the pressure of expelled water
4) A rudder
3 is a bad idea. unlike gases, water isn't compressible. Reducing flow by creating a blockage will work against it
@DAMNED SHARP KNIVES no. Water may not be completely incompresisble, but it is for the purposes of this test. It most certainly is not "very compresisble". You have to go down miles in the ocean for the density of water to increase by more than a percent. Cavitation is not water compressing. It's caused by water vaporising, and that vapour compressing. Choking the output of this motor will just reduce thrust.
@DAMNED SHARP KNIVES I guess the earth is flat too hey? See how much you can compress some water. Easy to compress gas. Most texts state to consider water as basically incompressible. Do some research.
@DAMNED SHARP KNIVES the gas is compressible. But the gas and the water are 2 very different things. At the bottom of the Mariana trench the water is only compressed a couple of percent. That’s not ‘very compressible’. The pressure levels at that depth are not recreated by a propeller on any boat. Water is moved by a propeller not by being compressed. Take another look at the definition of compressibility. It’s the ability to squeeze a certain amount of a substance into a smaller volume, hence density is a direct measure of how compressed something is. You’re conflating issues.
@DAMNED SHARP KNIVES other properties. Water is not that viscous, it doesn’t lubricate, it expands when it freezes etc. maybe instead of spending so much energy asserting you are right, you could find me a link to a page on any university or scientific paper that states that water is ‘very compressible’. I can only find ones that state it isn’t
Very cool video. Former submariner here.
There’s 2 reasons why such a means of a propulsion wouldn’t work for submarines.
1. Big electromagnetic fields are fatal to a submarine. That’s one method they are counter detected and as such submarines go through a special degaussing process.
2. Most importantly the bubbles. In terms of sonar detection those bubbles would be incredibly loud and more than completely makes the lack of moving parts moot by the formation and collapse of them.
Nice project!
👋🏼 Howdy, Ben! Scale it up for your channel....? 🤔✌🏼
Would it make a difference if you made the Electromagnetic magnetic chamber tighter. so that you collect water through a wide opening and speed it up and out through a small opening?
@@gus473
but use lower voltage. you do not want to do electrolyse like these guys
The voice-over actor should have a future in the narration world, if he doesn't already have one. Pretty clear, almost soothing voice. It doesn't hurt that the material is this good, either.
"this.. this could be a caterpillar drive"
This is a really nice demonstration of Magnetohydrodynamic drive (MHD). As for why no sub like the Red October has been built, there are papers with serious analyses that have been done and none of them show it's promising enough to actually build -yet. There are technical issues to overcome to move a 7,000 to 12,000 ton submarine through the water. But it's close enough to reality that the Hunt For Red October is plausible, and Tom Clancy wrote a great novel around it.
I remember looking at this 40 years ago, when the some Japanese inventors were considering it as the "dream ship" project. My simple calculations suggested it was not going to be commercially viable, because of the low conductivity of sea water.
WRONG.
You're just going to quote Yamato 1 which is hilarious. There's much more to the story than inefficient Linear Faraday Thrusters like the one on the Yamato.
@@nighthawkviper6791 Thanks for the Yamato 1 reference.
My brief look at this technology was in the early 1980s so that project came about 10 years later. The wiki page on that seems to confirm that the claims for this "invention" were over optimistic, which is what my colleagues and I thought in the 1980's, when we advised our client not to pursue a similar line of research.
At the time my main day job was researching the generation of electricity from sea waves, which has so far not become economically viable for large scale plant.
@@derekp2674 Magneto-Plasma Chemical Engines, Inertial Mass Reduction, and Fully Enveloped craft have been in operation since AJAX, HTV-X, the Aurora Hypersonics program, and the Astra series at LMSW. M2P2 propulsion, and other forms of Field Propulsion are powered by nuclear reactors, and have more than enough coefficient power to traverse any medium. Be that water, nitrogen-rich air, or the vacuum of space. See Russia's publicly released MHD-Torpedos so you can get some Aerospace Engineering education. (See any referenced above as well).
As for civilian markets; "it's too hard to engineer, 50yrs away, give me money so I can research it"----Which is why you only have planes that keep crashing and garbage automobiles that haven't truly innovated in 20yrs.
There's also Beamed Energy Propulsion, and Chevy innovated the Chapparal as a concept for civilians; never to be released...lol
So, I guess it doesn't really help you knowing this tech exists.
The Japanese built a MHD powered experimental ship back in the 1980's. It reached 5 knots.
Yamato 1 was seriously underpowered. Better powerplants existed back then but nothing official was published.
@@nighthawkviper6791 I imagine the japanese designs weren't running mega watt level reactors. Seems like a great application for nuclear power.
@@johno1544 ... well, the actual Soviet Typhoon submarines that Tom Clancy based Red October on were nuclear powered subs, so who knows?
It also reached respectable deciBell levels as I remember. Meaning, it wasn't silent by a long shot.
@@johno1544 Even those would not have helped. Without going into too much detail, if you try to push more watts into the water, it just heats up and the electrolysis intensifies without much more thrust. Extremely efficient superconducting magnets would help, but even with those there is a hard limit on what can be done...
I'd imagine that with some lithium ion batteries, a variable voltage controller, some servos for steering, and a little bit of ingenuity you could really get a capable little ship out of this.
And hey, if the lithium batteries all go wrong you can just claim it was a core melt down.
WE HAVE BEEN SABOTAGED!!
You wouldn't use batteries LMAO You would use Nuclear Reactors and envelop the entire vehicle in the Magneto-Plasma using AFD for x,y,z directional control.
@@nighthawkviper6791 he was likely talking about a small rc boat, not going to be able to use a nuclear reactor for one of those yet.
@@ethangibson8645 spoilsport.
@@ethangibson8645 Yet...
Okay, that was pretty awesome! Well done, guys. "Give me a ping, Vashily. One ping only, please. One. Ping. Only."
Excellent Project, Fellas !!! "We played around with it, couldn't make it work"
love all the Hunt for Red October references. You all beat me to it.
Same,
One of the best Clancy novels ever. RIP Tom....
I'm glad you guys are aware of the chlorine and are handling it appropriately
If you read the book, you'll learn it was actually a sort of pump-jet propulsion system which is why it sounded "mechanical" on sonar. I have no idea why they claimed it was magnetohydrodynamic in the movie.
Sounds more bada$$....? 🤔
In the book it was literally just a series of impellers set into a pair of tubes inside the hull. Basically an inboard drive system. Nothing terribly high tech. My guess is that it didnt sound hi-tech enough for a film audience to understand why the Navy would want the boat so bad...so they changed it to this more technologically interesting propulsion system
Maybe by using just 1 exhaust instead of 2, the outgoing jet would be more powerful.
I would add to your idea and having a smaller discharge port in comparison to the inlet to act as an accelerator/ jet or compression nozzle.
I agree... I want to see Magnetohydrodynamic submarine version 2.0 with the suggested changes.
Most of all so will a straight tunnel work better
so 2 inlets one central outlet? put the outlet where you would see a normal subs screws.... and put it behind the rudders. That way the thrust can be semi directional?
Agreed. Bifurcating the exhaust probably causes some pressure losses, reducing the thrust the sub ends up with.
Wonder how the noise of the bubbles would compare to the normal cavitation and noise from a conventional propeller drive. Would be interesting to see a larger-scale version including a hydrophone test. Would also be interesting to see what level of salinity to current is needed for it to work in a large body of water.
My thought exactly
It'd probably sound like a seismic anomaly or whales humping or something...
Would bubbles rise to the surface and give away position..As you say would they make noise. For a boat that just needs to do about 4knots such as Trident this would be ideal. But would still need reactor to provide electric. If speed is needed then just revert back to normal propulsion. Noise from generator would need to be suppressed as normal. Plus in theory you could use the batteries onboard and use reactor to charge.
Careful! Those bubbles are full of toxic chlorine gas.
yeah when he threw in the prototype, I was like "oh cool so electrolysis", then i remembered that it was salty water and cringed a little
@Chris Webb This salt water is water with dissolved sodium chloride, so breaking the molecular bonds with electricity creates ___, ___, ___, and ___.
.
.
A: (Oxygen, hydrogen, sodium, chlorine)
@Chris Webb here's a good breakdown: ua-cam.com/video/N_HQGiC9OJE/v-deo.html
Pretty cool, another winner
The UA-cam algorithm led me to this video, I’m a huge fan of Tom Clancy’s Hunt For Red October and the idea of the silent drives. This a really cool project that’s explained really well.
Same
This is by far the coolest how-to video I have EVER seen on UA-cam. Even better it’s about a subject from one of my favorite all-time movies. Thanks gents.
This is a terrific project and you presented it very, very well... this is the kind of project that makes science both fun and interesting...
This technology reminds me of the Ion-Drives you see on some space probes! Low thrust but direct from electric energy to thrust without moving parts or combustion.
Very cool project! I can already see several desgin changes I would make to increase the speed: More magnets in longer tubes, additional magnet tubes, slimmer overall design that displace less water and bringing the battery inboard are low hanging fruit I see.
Testing for presence of hydrogen with lit flame had me rolling! Thanks! 👍🏼 Nice work, Guys!!!!
"Engage the silent drive" (while the Soviet anthem is sung by the crew) .... great movie!
The Oregon Files by Clive Cussler uses the same idea to propel their spy ship. In the Oregon files, it's not for silence, it's for Jet ski like performance out of a huge ship. Decent series of books if you like the Technothriller books that Cussler writes/co-writes.
Agreed great books.
Oregon files. The Dirk pitt adventures. The Isaac Bell novels. The Sam and remi Fargo adventures. And the numa files all great reads.
@@gunrunner7224 they are indeed, I started reading them as a kid and inspired me to get a diver certificate, unfortunately can't afford the classic car collection.
yes and there were also real life experiment made in japan (probably somewhere else too) but its dead end anyway
@@jebise1126 trouble is at the current state of technology, the power to propulsion ratio just cannot compete with a motor and propeller.
Very cool. Practical Proof of Theory. Well done!
Congrats on making the drive work. It made be silent so hydrophones couldn`t But the other method is M.A.D. Magnetic, Abnormality Detector , with those BIG magnets a sub would need , it would light up like a christmas tree.
A closed halbach array would have zero net anomaly, as long as it is properly balanced. It might even have a better weight to magnetic flux ratio.
AC electromagnet drive helps with that and gets rid of the gas generation issue in water.
Closing the magnetic circuit would help too.
THANKS for posting that. I read The Hunt for Red October a number of times. You did a fantastic job proving the concept.
It also shows the genius of Tom Clancy in that he was aware of the possibility of such a drive system
Finally, today, in a galaxy very very near, somebody has learned to use The Force.
I received second place in the school science fair for demonstrating this. That was 56 years ago.
You only got 2nd place for something this cool?! 1st place better have been a full scale nuclear sub!
@@sivansharma5027 The guy who got first place was my best friend. He built a computer out of telephone relay switches that could add and subtract. Quite an achievement for 1965. He went on to work for HP and then taught electrical engineering in Korea.
Wow! My greatest achievement was graduating from Ft. Lauderdale High Class of ‘66 as one of 3 German exchange students. Both you guys were far ahead of most of us. We admired the Shelby Cobra as our technical interest.
I got first place at my school science fair for demonstrating a vinegar and baking soda powered model boat. It was a small school, and I was in Kindergarten at the time
LENZ effect is how my magnetic design works... Same would work for a nuclear submarine... Torroidal center flow... Watch my channel about my All metals isolating magnet...
Very cool and thanks for lifting the lid on how Red October worked,proof of concept 101,nice
There are two forms of silent electrical propulsion. First is Magneto Hydrodynamics. The second is using electromagnetic force. This involves creating two tunnels down the submarine and lining them on the inside with a long balloon. Within that rubber lining is a magnetic fluid. A series of electromagnets are placed in sequence around the outside of the two tunnels then produce an magnetic field which attracts the magnetic fluid to them. By switching on each electromagnet in sequence, you create a peristaltic force which moves the water down the tube as the lining squeezes the water in the tube, in exactly the same way as food is propelled down the alimentary canal in a human gut.
This form of silent drive is better than the Magneto Hydrodynamics as it does not involve passing a current through the water or the production of hydrogen and chlorine from electrolysis. The amount of these gases would produce a tell-tale stream of bubbles out of the vehicle, as well as wear down the electrical anodes. However, the rubber lining would wear over time and be subjected to sea life such as barnacles. This could explain why it would be necessary to cover the entrance and exit of a such a drive whilst not in use and also used anti-fouling fluid to prevent barnacles blocking the tube.
A nuclear powered submarine could generate sufficient electrical power to drive either system. Nuclear submarines stay underwater for extended periods because they can create oxygen using electrolysis. The problem with either system is that they rely on creating a massive magnetic field. Submarines can be detected by their magnetic signature and how it disrupts the planet's own natural magnetic field. So increasing the magnetic field might give away the position to anyone on the surface or in the air, even though the propulsion system conceals them by not making a noise.
This was great fun. Although, with all that cavitation, silent drive is the last thing it is. One can here those bubbles popping from tens of miles away, without a sonar.
There's probably a way to buffer the plates with fabric or something and direct the bubbles into a tank inside the sub. Anything will work as long as the current flows across the jet. A high frequency AC current on the plates with alternating electromagnets might keep the bubbles smaller.
Some suggestion:
- use Sodium bicarbonate instead of salt, it will avoid chlorine, preserve electrodes, and is easier to dissolve.
- raise the voltage: the more the voltage the more the current for the same amount of salt
- add a rudder so that your submarine make circles instead of strait lines
This would be one of the reasons why this propulsion method is not used in real life - good luck replacing the salts in the oceans by sodium carbonate 😊. Not to mention that one could easily find the "stealth" sub by following the flammable bubble trail.
Great job!
That was brilliant, thank you :)
that my friends was well worth watching thank you
This will be a great kids Science Project for school... That is IF they still do that sort of thing anymore.
This sounds like the kind of thing my 8th grade science teacher would have done.
Apart from the Chlorine-Gas formed by the electrolysis of sea water...wanna let children play with that? XD
@@pauleschuerfeld6627 Hydrogen gas.
@@OdeeOz Yeah, as well as Chlorine from the electrolysis of NaCl. Salt...you could watch SmarterEverydays Video on the Submarine....he states this as well.
@@pauleschuerfeld6627 Chlorine comes from the tap water silly boy/girl/whatever
I wonder if graphite electrodes might work better/corrode less. You should do differential steering with two engines and radio control. Maybe use a lipo pack and try various voltages? Great stuff! Thanks!
Needs to make a smart skin that envelops the entire hull, not just linear thrusters.
Platinum electrodes are common in industrial MHD pumps.
Amazing!! I would have never guessed it would actually work!! Very cool guys!!
extremely cool! I wonder if the bubbles would be noisy underwater though-like a cavitation sound? How to get rid of them? Such a great experiment-thanks!!
Lower voltage would cut down on it, but also pressure and cold helps it dissolve faster. The issue is that soviet/russian subs are rigged wuth isotope detectors to find leaky subs. Wouldn't be hard to find the elemental deuterium/tritium.
@Mike Marley It would be hard to extract it from the matter-flow without adding too much friction, thereby making it near-pointless.
The bubbles are probably why the man said "We tried it a couple of years back, couldn't get it to work".
"Isn't this a model or somethin'?"
"She sailed out this morning."
:)
@@RoBert-ix6ev "This isn't a mockup or anything, they really built this?"
"She was put to sea this morning."
"When I was 12, I helped my daddy build a bomb shelter in our basement because some fool parked a half a dozen warheads 90 miles off the coast of Florida.
This thing could park a couple hundred warheads off the coast of New York or DC and no one would know anything about it till it was all over."
@@mattpeacock5208 true true :D
Great tribute to a classic!
PLEASE KEEP UP THE GOOD WORK, THIS IS ABSOLUTELY INCREDIBLE!
This is immensely cool! Thanks for sharing. I wonder how silent this would be at a larger scale. I think it would probably sound like a water park to another submarine. It is practically a cavitation-generator. >D
Would increasing the magnetic field also increase the amount of water displaced? I wonder if changing your single magnets for a Halbach array would help.
It would, stronger magnets, higher current, doubling the system. There's plenty of ways you could displace more water, thus achieving more speed.
Awesome!!!! Love that movie, great job breaking the science down so my kids can understand it!
Very interesting... Learned something new today.. Thanks
Needs more Cow Bell!
two engines, lipo batteries and vectored trust next!
Yes. There is nothing better than Lithium and water. :-)
Very cool!
Fun watching!
If you can bring down the EMF, you can prevent the dissociation of water (thereby less wasted energy). But how?? Perhaps with PCB "Fins" (narrower actuators connected in parallel, arranged in series) in the magnet-gap to decrease the EMF [volt] while preserving the E-field [volt per meter] ? If you can go below 1.2V, this should prevent dissociation. With your 12V system, this would need nine PCB fins in addition to the end-electrodes ( creating 10 water-gaps)
Interesting idea.
I'm not at all familiar with the electrical side of this but mechanically I was going to suggest that you could also design the drive to sit at a slight angle (say >10deg pointing down towards the bow) to create an easier inclined escape path for any gasses that are produced. The loss of thrust due to the angle would be marginal and it would keep the fins submerged so you wouldn't get drive losses from any accumulated gasses.
Nope.
You can never bring down the dissociation of the water, as that's coupled directly to the current you pass (Faraday's law of electrolysis).
The only way to lessen the creation of hydrogen and chlorine is to lower the current, which also lowers the force on the water...
The only way to increase to force without increasing the gas produciton is to use stronger magnets which is why the specifically mentioned 'cryogenic plant' in the movie as the red October used superconducting magnets for the drive (also mentioned in the movie when they have the caterpillar drive breakdown due to sabotage by the cook).
An other thing which they did not show in this video is how much corrosion you get on the positive electrode which basically gets dissolved over time and the only way to reduce THAT problem is to make or coat the electrodes with platinum.....
No Smoking
@@srenkoch6127 -- Well, if you reverse the magnetic field and at the same time reverse the electric field, you can use insulated electrodes.
@@GilmerJohn Well yes, but you would have to do the reversal at kHz range in order to use the electrode capacitance like that, and in not sure you can reverse a sufficiently strong magnetic field at that frequency.
Remember that NMR-magnets neds to be ramped up and down over minutes if not hours....
And if it could be made to work this way it would make the system basically a HUGE radio transmitter making the sub quite easy to detect (an oscillating magnetic field is one of the definitions of a radio transmitter).
In the 80's the Japanese had a superconducting MHD research boat. I can't remember what it was called. Looked like a spaceship. EDIT : found it, Yamato 1, early 90's. Could do 8 knots.
it's a great project.
if you are interesting in making it more efficient, you can do some things:
- make the back of the boat pointy
- insulate all electrics not in the drive properly from the water (all the connections that you only taped etc.)
Absolutely LOVE it. Is there any chance that you share your 3D print file. I would love to replicate this for my students.
Part of the fun of the project should be the making and modifying the files for the students. Set them up in teams and put someone who knows any of the 3d design programs as chief navel architect, One for team lead, one who knows how to print as chief manufacturing engineer, and one who likes to draw as the industrial designer.
Let them play with water flow, Magnet placement, Port cross section and trim of the boat in the water. They may even look at length to boat cross section as a factor to get speed. They could research not only sub design but large surface boat design.
I could see the bubbles forming being a major problem for the use on actual military submarines... also the magnetic field would probably have to be so strong that it could be detected from miles away lol
Not if done correctly. Most of the magneto hydrodynamic drives you see on UA-cam are about 15 years behind the current technology. Think compact flux curves hallback arrays and oscillating drivers.
@@nighthawkviper6791 Is that J. Arthur Shercliffe presenting that video, with support by other US University staff?
I met Prof. Eric Laithwaite on at least two occasions. Although his work on linear induction motors was outstanding, his inability to comprehend other topics was disappointing, not least his failure comprehend the mechanics of gyroscopes. He also had a rather biased view on the relative merits of coilguns and railguns and tended to interpret observed facts selectively, to support his view point. He was not really setting himself out as an expert in the latter field though.
PS - I agree with what you said about radar evasion.
Uh ... hi, I’m 70 years old, and I vaguely remember 40 or so years ago someone built something like this and ran it in a body of water. Not to undermine your work, you did great. I wish I could do what you did. Now, another idea I thought about, someone has built a model airplane that works on a similar idea. Keep it up.
That's a cool project, fellas!
What I learned from this video: MHD drives wouldn't actually be silent because of all the hydrogen bubbles they produce.
You guys should try this again with two drives! More Volts / Amps too lol
@MichaelKingsfordGray wow dude, what hole did you crawl out of , and who was it that peed in your cereal? Was just trying to comment on cool video, but based on your reply, you posted on the wrong video or something 🤔
The sound of stir bars spinning is so relaxing to me.
honeywell has a huge lab for this in ahwatukee az
you need to keep the voltage under 1.35 V. Otherwise, you start to break down the NaCl.
Doing the opposite as pushing the water alongside the hull and not inside, you would cancel the front and back bow wave and gain substantial trust power…
Pretty neat, I felt certain that it would work but I never seen anybody actually achieve it, job well done guys thanks for sharing
I made a water pump based on this idea years ago (with the idea of a silent engine for fishing, but other things got in the way of further development). It worked much better with aluminium plates with a mesh on the surface, or dimpled plates.
Ended up with 4 separate anode/cathode arrays that get 10% bigger than the previous towards flow direction, but still just 2 magnets. With 12V it chucked.
this is the oceangoing equivalent to an ion engine
Funny enough I watched the making of Hunt for Red October just yesterday. Nice video on magnetohydrodynamics
Neat! Thanks.
awesome :) loved the movie too
Sorry to disagree a little bit, I think it is Flemings left hand rule you are using, not the right (which is for generators). ThuMb is magnetic field, seCond finger is current and First finger is force. Have to say though it’s a very good demonstration, well done.
2:15 Those bubbles are chlorine gas & I think hydrogen
(because salt contains Sodium & Chlorine (NaCl), then water contains Hydrogen & Oxygen, and the chlorine bonds break down first) (Something probably also reacts with the aluminum too)
Here is why: ua-cam.com/video/g3Ud6mHdhlQ/v-deo.html
Longer more explained version: ua-cam.com/video/g3Ud6mHdhlQ/v-deo.html
yeah i think a lower voltage & stronger magnet would be the way to go here
That is simply amazing! I want to make a large scale and slap it on a small boat and see how practical the power to miles per charge would be.
K&J is a great place to buy magnets. I have been buying from them for years... nice to see they have a channel.
You could more than likely get more speed also by putting a cone shape in the rear similar to what rockets use. Having it push out of a smaller hole,
As fascinating as this is, you should avoid electrolysing saltwater. It releases clorine gas.
I will try and forget your comments when I present my report…
@@mackdiesel2576 lol hahahaahahha
Very cool, I'd love to see one cranked up to 11 (longer plates and magnets, maybe ribbed plates to increase surface area, higher power etc).
Just GENIUS....!
Design a rocket to burn the hydrogen for additional thrust.
and a small tube that launches hydrogen bombs.
Cool, but you would need a hugh magnetic field to move a sub and that would make it easy to find. Does anyone have a compass.
Nicely done. I demonstrated this effect in an 8th grade science project way back in 1964 using a design from Popular Science magazine. Although being only 14 I didn’t understand it very well.
That's really cool
Great idea, but submarines like to avoid electrolysis, corrosion and explosive gasses flowing from behind them. Besides, propeller technology is constantly improving making submarines quieter and more power efficient.
Doubt our sonar would even pick it up. If it did, it would sound like... whales humping or some kind of seismic anomaly. Like a Magma Displacement.
Magma displacement was how Clancy described it in the book.
very impressive stuff lad's. : )
A fantastic proof that electromagnetic propulsion works and can be utilized, congratulations guys.
Edit : I had to subscribe, I want to see more 🧐
hope you were mindful of the chlorine gas in those bubbles monkaS