Interested in seeing more lost technology? See my most recent video about recreating an ancient Japanese firework: ua-cam.com/video/yvoUYEu3o-c/v-deo.html
@@Hickeroar This invention was never meant for typical "day to day" functions like that of use in hydraulics or other "pump"-like situations because it A) doesn't have a release, B) only is meant to directionalize flow, and C) won't prevent _ALL_ flow (of either direction). Also, it's not nearly as cost effective as the other forms of typical valve systems that exist, nor was it ever intended to be used as such. It pretty much only has a practical use in fluidics, which isn't what most people would even understand without a background in micro-engineering. It's effectively a diode, not a true "valve", as there are no flaps/points of full restriction, but typicallly most people don't care enough to fight for the name of "Tesla Diode" to the patent office. Also, it should be noted that this video does _not_ represent a "true" Tesla Valve's form, as the ports are misaligned, not at the correct internal depth, and the loop-backs aren't fully functioning as Nikola's design would have. Had they been a full "100%" replication, the gas flowing "back to front" through it likely wouldn't have traveled as far as it did. In Tesla's full design, restrictive force multiplies by a factor of 1.7x per rung, needing exponentially more force to travel further through.
with a title suffix like “explained with fire” it didn’t even matter what this video was about I was sold. In all seriousness that was an awesome video. Very interesting.
Use balloons and watch how fast they shrink when their air is released into the valve. Of course you would need to use an airtight adapter for accuracy
At first I thought this wouldn't work, but upon careful consideration it is a pretty good idea. Also this brings up some interesting applications and questions. If a proper setup is made (following your model), can this valve theoretically infinitely accelerate airflow?
I would be interested to see what the differences are in comparison to just a straight pipe and either direction in this valve to really get a good idea of how much acceleration/deceleration is happening with each direction of travel in the valve.
Yes the speed is definitely different, I think both the size of pipe n amount of gas inputted will matter however I’m sure this one would definitely be faster because it has rapid increase meanwhile others will have constant increase.
I can guarantee Destin would love to do the expanded video with you. Potentially throwing some type of projectile at the end...Perhaps. I am thinking 12 foot long with a cork ball at the end.
I wonder could you make a propane engine that uses these as valves both intake and exhaust. No moving parts would be amazing for engines. 2 stroke in this case.
Computer Music All-stars haha same I can go anywhere else outside Louisiana and they just somehow know I’m from there when I speak even though my accent is barely present
@Sassy The Sasquatch I think they're talking about his round face. Round faces almost always reduce the look of age. With a beard he looks 30ish, without it, he would probably look 20ish. I used to be that way, then I lost weight XD
When the flame is going in the "fast" route, it actually reminds me of the V3 cannon from WWII. That cannon worked by having propellant charges in side chambers along the barrel that were angled towards the muzzle and, as the projectile passed each pair of chambers, they'd ignite, giving additional force to the projectile. It seems the same could be happening, here. Each time the flame front passes by one of the teardrops, there's a secondary front that makes it's way around the rounded edge and then accelerates down the straightaway back into the main flow, but behind the main front, possibly adding more speed to it.
V3 cannon from WWII Well spotted, i wonder how segments it would need to meet peak velocity. Also, probably incorrect, but if you could put a few small segments of this valve at the back of a regular gun, prior to a riffle, maybe you could have a more efficent combustion/faster bullet velocity,
@@thebobman69 in my head if you add too much length you would build up too much pressure in one of the tear drops and cause failure at some point in the valve. But I'm not engineering inclined.
That’s a really cool phenomenon! I wasn’t aware of Tesla valves before this but the concept makes sense. This makes me think that it’d be neat to rig up something with different powdered metals in each chamber. I’m envisioning different colored flames in each section of the valve. I don’t know how feasible that would be. Awesome video!
Thanks for this. I’m thinking about making an intake for my compressor box. I’ve thought about baffles with foam but I think this would work better when adding a flow fan that will be either inside or on the exhaust. I’m in the thought phase and tons of other projects but I would like your opinion.
I’m wondering if “compressor box” is: A. The intake for a shop air compressor B. The intake for a automobile engine with a turbocharger or supercharger Btw I am wondering if automobile exhaust pipe performance would be enhanced?
@@ИванСнежков-з9й If you look up smarter every day silencer, Destin did a few slow mo shots of suppressors in action. I'm not an engineer but the idea is similar, the main difference, is that the first half of the tube is a big void and the second half is a "valve" setup. If I recall correctly, in the video, the suppressor company owner says that the reason for this half and half split is that you want to bleed as much of the energy of the gas as possible before it exits the gun and suppressor. The most effective way of doing that is just a giant void, but you would need extremely long/large tube to reach subsonic speeds. So they compromise, by have the gas work against itself in the second half. At the time, it was hard to tell how much that affected the gas without something like this in context.
@@ИванСнежков-з9й I watched a similar video last year where the guy used water as a demonstration. Then it came to me on a suppressor design like this that would cancel out the noise of the gasses. But it would take a cnc machine to cut the parts out. Good thinking Иван Снежков.
bruzote Yes, you need some back pressure, just not that much. I wonder what would happen if you run a high volume compressed air line the wrong way through the valve? 🗯🗯🗯🗯🗯🗯
Wait. If you do that and have a battery/conversion unit in the middle couldn't you have a damn near infinite propulsion engine? If the increase in speed results in a gain of kinetic energy meaning a surplus which can fuel the combustion process and still have the energy to fuel a battery/ capacitor
Everyone out here obsessing over "velve" like they've never heard of dialects while all I could think of is supersonic flamethrowers by using this kind of velve.
Well ... technically speaking, the idea of this valve is to restrict the gas flow from a direction rather than accelerate it from the another. For a flamethrower, a straight pipe might be better in terms of gas speed after it's lit up. It's just my guess, correct me if I'm wrong.
Some one have probably already meantion this fact, so here it probably goes again: In my study on fire and explosion saftey I learned that the flame front in a combustable gas mix will accelerate over a distance. The fun thing is that turbulence in the flame front will make the burn accelerate even faster and that is what you see happens. At one point it will reach a critical speed where the flame front is faster than the speed of sound in the medium/gas mix and the flame front will get a sudden increase in speed. This causes even more turbulence and even further accelerate the flame speed. The transition between subsonic and supersonic flame speed the flame goes from deflagration to detonation. Simply put, you go from a burning flame to an explosion 😀 So you do not need more tesla valves, you just need more stuff inn there with sharp edges to create turbulence and a longer tube. Try it out with a long plexi tube and you will get the same results. One empty and one with a lot of obstacles. This is one of the reasons why a gas explosion is so much more dangerous in a confined space with a lot of stuff/obstacles than out in the open. Been a few years since I studied this topic, so correct me if I remembered it incorrectly. -The random UA-cam mechanical engineer 🤘
Not exactly, you do not want to obstruct the flame so much that it can't continue, but yeah, the more turbulence you can create in the gas mix the faster the flame will burn. Objects with hard corners will do this as the burning flame front will push on the gas mix infront of it, speeding it up and thereby creating turbulence when the accelerating gas mix hits the objects and disrupt its flow. But it is the turbulence that is the key, so you are free to introduce it into the system however you like.
Yeah the assertion toward the end that the valve actually facilitates acceleration is simply false, showing that the guy didn't bother to learn physics thoroughly before making youtube videos.
Thanks Ben - a first-class demo. It impressed me so much that when I needed a special respirator valve I remembered it and used a modified version. Great job.
You explained this, and I'm like "Oh, that makes sense." And then you're like "But you can't picture that unless I set it on fire" and I am okay with that too, since this is the video I chose to click on
Only reason I scrolled through the comments was to see if someone had already mentioned this. Looks good but does not show the valve functioning at all.
No, I don't think so because the Tesla valve operates from disippating kinetic energy from a flow. A flame front is mostly independent of gas dynamic effects in this case. It sure does look pretty though
@@NoName5589 The gas is expanding at a really high rate. It's literally spewing stuff backwards. There's no constant pressure from the inlet. The valve is based on momentum and friction affecting the flow from the inlet. There's no flow. It's equivalent to demonstrating the flow of a river with a burning fuse. There's no momentum in a burning fuse. There can't be resistance of momentum to the burning of a fuse. A boat on water?.... How can we demonstrate the friction of water on boats? Let's move a boat with EXPLOSIONS! YEAH!
Very cool video. You should definitely try a longer version to see how fast you can get the flame traveling. Also, would be great to see it in even slower slow motion. Maybe a collaboration with the Slo Mo Guys?
Well like minds think alike. This happens to me on twitch in particular Where after joining a community for a while, I start noticing people from that community in multiple other communities I'm part of. It almost feels like they're stalking me.
The gases that would be used in this "valve" are heavier than air and smoke is lighter. It could be a significant difference in result but it would still be interesting.
Everybody: just use a liquid with particles like glitter in it to visualize the valve NightHawkInLight: there is no other way to show it than using propane and ignite it :D
@@DehimVerveen A program only uses models of how it thinks air should behave, the knowledge and formulas have to be known before CFD software can even be created, this is a much more reliable and concrete way of proving that it works rather than a computer doing what may or may not be the correct equations
Retired University Physics Professor: Where I still teaching, this would be required viewing for every student! These valves have been known about for a long time but I've never seen them explained any better! Kudos on a job well done!
@@MCphattyStoolz I knew that's what the one comment was going to be. lol. Dan Furmanek worked at the University of Buffalo... as an Adjunct Professor... so... position and grammar = non-essential
Wouldn't using a colored smoke be more accurate? It seems to me that this is just a test of the ignition acceleration of the propane rather than of the speed of the gas through the valve.
Yes this is pulsed ignition acceleration. If we want to test out a sustained flow, i think it would be harder to see the acceleration. I wonder if the acceleration is only achieved with the continuous ignition.
Well, that flame front is drawing air from the ignition side, which is why it travels like it does. Flames in tubes like this create a suction at the ignition point. Not a strong one but a distinct one.
@@Solnoric Lower pressure/higher velocity is the hallmark of the Venturi Effect. So the flame is lowering the pressure inside the valve behind the flame more and more the further it travels.
Yes but it wouldn't become more effective with more "nodes" (the switchback sections) as you will get choked (sonic) flow from just one de Laval nozzle (a constrictive section where it narrows followed by a expansion section) I would pair a bunch of these nodes in the same way we has here BUT with the final one having a constrictive and then expansive section. That way the final one may achieve supersonic flow You're essentially using the flow restrictive properties of the valve as a kind of virtual combustion chamber - it's not a solid wall, as with a real chamber, but acts like a semi permeable one.
Lol i was scanning through the comments to see if someone else had the same idea i just posted. I think it would be a bit more advanced than a standard pulse jet. And a lot more efficient as well
Oddly enough that was what Tesla originally designed them for, to be used in a pulse jet engine to power his generator that he designed. He designed them for the Pulse Jet engine since the one way valves they normally used used moving parts and simply broke to quickly to be used efficiently when attached to a generator, even Teslas very efficient design. The youtuber Integza has some amazing videos discussing alot of these ideas and even putting them all together and testing them, as well as showing the original patents and improved designs and I highly suggest looking into his videos if youd like to learn more about these things
No it wouldn't. A straight tube isn't a valve. It would be pointless. The demonstration was to show how the Tesla valve works by directional flow. An open flow or unrestricted flow, would be an uncontrolled flow. Valves are meant to control flow in one direction or another and/or increase or decrease pressure or volume of a fluid or gas in a conduit and/or a collection tank. An open conduit or vessel, simply allow a liquid or gas to flow freely and only be controlled by gravity or surrounding atmosphere. In other words... There is no comparison to be made unless your demonstration is on how a valve works in general. This demonstration is being made under the assumption that you already have basic knowledge of what valves are and what valves do.
@@commonnons3ns316 You just tried to convince the world that zero is useless as a number because it doesn't have a value (it contains nothing). The straight pipe flow would be interesting because of the acceleration of the flame-front by expansion of the burned gas compared to the somewhat constricted Tesla-valve.
Yeah, a straight pipe would be awesome! it would be like having two cars race each other and then in another split screen we have a tub of fried chicken just so we know what the base level of context is....
It may help to have smaller Tesla valves in the main path, but a big reason it works like it does is because of the flow around the branches. If you were to put smaller branches inside the larger branches I have a feeling it would hinder the performance. Then again, the whole concept of the Tesla valve is pretty counterintuitive, so it's hard to say. I'd probably watch a video where somebody tried it.
I had seen the Tesla valve in one of his (Nikola Tesla's) drawings. While it is fairly easy to comprehend, it is so incredible to watch it in action. I would have never even thought about the fact that the flame front would accelerate in the opposite direction. I had been so focused on the fact that it would arrest the passage when trying to run backwards, that I didn't even think about it. He was operating on another plane of consciousness, to say the least. This was such a simple but elegant way to demonstrate his valve. It was thrilling for a mechanical/science nerd like myself to actually watch this demonstration. It reminded me of watching a feather fall like a rock inside of a vacuum chamber. It is so much better to witness than it is to read about. Thank you so much.
@@shanerountree3623 quick notes: as the video observes, using a combusting gas causes expansion/acceleration inside the valve, which causes this visual to be a bit misleading. Second, the fact that he's using a short pulse of gas rather than a steady stream means there is no positive pressure preventing the massive back flow that we see. I suspect we would see something quite different with smoke and an air pump. I would also be really curious if we would see some periodic resonance in the flow at steady state or if it would just be random chaotic turbulent flow.
This is extremely cool, I would love to see you do more with the sped up flamefront in the Tesla valve, like maybe create an extremely long one and see just how fast you can accelerate the flamefront
I loved when you said,”it’s actually louder” because in a way this is exactly how a ruffle suppressor works. The gases released by the combustion of the power is what’s causing most of the noise other than the projectile making its own dispersion of the air around it. A suppressor is kind of like a bunch of holes and stuff with a path for the bullet and so when the expanding gases exit the barrel they are slowed down by their own turbulent way of moving around and so the effectiveness just comes down to what design helps me release the pressure slow enough so suppress the noise but not decreasing velocity or compromising the unit
Sound is a relativity thing governed by particle state, in aircraft design its also there for the combustion, supersonic & hyper-sonic combustion. So everything you're hearing, which can be considered as loud from gun fire, is probably breaking the sound barrier including the combustion of the ammunitions fuel. eg; gunpowder combustion velocity and projectile velocity. Pressure and Temperature will also make a difference. Particle state is everything, up to and including charged particles traveling instantaneously (faster than light) around a pulsar star creating superluminal booms in an electron blue color via a vacuum known as the quantum vacuum. (pulsar emissions consist of Cherenkov radiation)
As from my class notes, I remember that the internal edges of the Tesla valves should be a little bit steeper. You can try that and see what's gonna happen Edit: sharper
@@906MediaProductions Ah! I hadn't considered that at all. My primary thought was accelerating the expulsion of exhaust, since we want it gone in a hurry. It might also tamper with catalytic converter performance, which hadn't dawned on me until you commented. If nothing else, it might make for a slightly boosted intake system, maybe approaching the level of a cold air intake system. I wonder if anyone has even tested the notion.
Hey, really nice visual presentation! I believe, just like in a pulse jet engine, the sub atmospheric pressure in the wake of the mainline flow accelerates the return loop flow. I agree with your prediction on burn acceleration to supersonic speeds. Pulse detonation engines use flow restriction coils called a Shchelkin spiral to transition from a simple combustion to detonation.
Maybe as a vacuum optimized engine. But I’d go watch everyday astronauts video on areospikes. A bell nozzle engine is about as good as you can get. Especially the raptor full closed loop.
@@Methoverbitches but imagine a rocket engine with no moving parts. You could also use it to make extremely small engines, saving literally tons of weight.
I am going to re-upload this video with the title "Edison Valve Explained With Fire" . . . (That was an obvious attempt at a joke and should not be taken seriously)
Hey so this happens to be something that is quite interesting in the combustion world. Flame acceleration is caused by a few things but a common thought is that turbulence and flame instabilities are driving forces in flame acceleration. As you wrinkle a flame it gets more surface area, which in turn increases the heat release rate, thus making the flame go faster. You can in fact accelerate a flame to very high speeds possibly even supersonic speeds. An interesting phenomenon is whats called Deflagration to Detonation Transition (DDT) where an accelerating flame can form into a detonation wave under the correct conditions. Its still not fully understood but definitely something interesting to look into. Thanks for making this video! A lot of interesting physics going on here.
so.. here is a additional twist... I used this same idea on a potato cannon. I was driving marble potato to speeds high enough to punch thru 1/2 inch plywood. But what if this was combined with the tesla valve to make a improved pulse jet?
@@DreadX10 Mythbusters did a great video on this, I think. Something like junk bailing wire crumpled up or anything really. NOT STEEL WOOL sweet baby jesus i found that out the hard way!!😨 Lol and yeah maybe avoid using rocks or something that could be swept up inti the barrel and block the exit during ignition...basically be sure not to create a giant claymore by accident😱😂
OHH its sure to have different pitches depending on the length. Experimenting with this would require some serious maths and/or some serious time-consuming trial and error with many different dimensions and designs
you know, that wouldnt really work if you think about it. if its a circle then its a closed loop, right? and if you ignite a gas in a closed space (with walls made out of glass) guess what happens
It would be really annoying to balance that; too much or too little pressure or resistance or distance causing delay would stop it -- other problems notwithstanding.
Chris Russell he didn't make the buckets curve back enough, he also should have made the channels thinner.. this didn't actually work as a flashback arrestor which is what tesla designed it as
OK, so this is a mechanical diode. it flows easily in one direction and resists in the other. this would allow you to change an oscillating flow into a direct flow is you set up 4 of these tesla valves as in a rectifier. how can you use this technique to produce usable energy from a chaotic flow?
Holy shit, wave energy, like from ocean waves, with a *Full Bridge Rectifier!!* of Tesla valves. All you have to do is have an oscillating water source and you have a self acting, low head pump. With enough volume, you could set up a small low head turbine to run either intermittently or even constantly, with a reservoir.
I wonder how a ball bearing would react placed just in front of the initial wave at the start of the valve... would the ball accelerate within the valve and exit, or will it just explode...
Someone else has probably pointed it out already, but: The same reason you noted for the valve system accelerating the expanding gas forward through the valve, also explains why the gas creates fast jets in reverse when you're forcing it backwards through the valve. The expanding gas front finds it easier to turn around and go through the valve "the right way", speeding up in the process.
As a person whose entire career was concerned with experimental fluid dynamics and heat transfer, this experiment of yours is seriously flawed but interesting nevertheless. You set out to demonstrate how the fluid flow going one way through the valve differs from what happens the other way with a hypothesis that it will be moving faster one way versus the other. Flame propagation is a different phenomenon. This is why the flame propagation appears to be much more rapid than the fluid flow in the device is likely to be. The fluid flow affects the flame propagation and mixing of the gas within air in the channel but this is not necessarily telling you much about what you set out to show about the fluid flow. Flow visualization will be easier to do well using a liquid like water to which you can add particles (need to be near neutral buoyancy or really small, flakes like glitter, dyes, small bubbles etc. Gravity feeding water from a bucket into a funnel and then a tube to an inlet on your valve would be one way to achieve a water flow. Glitter flakes and appropriate lighting would get you there. With a dye, you could establish the flow and then add a bit of dye so a slug of dye moves through the system. I have done work using fluorescent dyes, fluorescein disodium salt or uranine are water soluble and absorb blue light with green fluorescence. The water should not have chlorine in it for best results with these dyes - distilled water or tap water than has sat around at least 5 days to let the chlorine diffuse out of it. These dyes are what they dye the river in Chicago with on St. Patrick's Day. However a food color dye could work but may be more difficult to see. You want to introduce slugs of dye off, on, off with continuous flow. Backlighting particles/flakes may work better than lighting from the camera side and glitter flakes won't need to be introduced in slugs to provide some idea of velocity in a video as long as the frame rate is appropriate for the speed of motion. You can adjust the flow rate some by changing the vertical distance between the water source and you flow channel. An adjustable restriction on the outlet side of the device could also be used to adjust the flow rate. For air, you might try using a vacuum cleaner to draw air through the system - don't try and push air into it. But flow vis with smoke requires a dense smoke source or you will not be able to see much. But smoke in the inlet flow, then out, then in, etc. may show what you want.
Howard Petrie I agree. I may be wrong, but a tesla valve has no practical use in any industry. This valve is great proof that by manipulating the behavior of fluids within a container, you can decrease or increase pressures; just like proportioning valves on hydraulic systems, check valves in pneumatic systems, mufflers in cars, and countless other examples. This video has too many flaws in how it attempts to explain the behavior of fluids in a tesla valve. I guarantee that by using a combustible fluid and setting fire to it, there HAS to be some degree of a vacuum that develops at both openings that affects the flame propagation and does not represent how a fluid, under pressure or not, would behave in the same valve. You want to push a flame to super sonic levels? Lol good luck feeding that flame and good luck building a pressure vessel to handle that.
@@jg1503 I like the thought of using air also and use a medium like sugar or flower, easy to get will show accumulations in the system and light enough to reasonable flow results.
I've been thinking about the acceleration effect. Each subsequent valve has a slightly higher pressure in the restricted direction which accelerates the flame. Probably a trade-off where the restrictions convert some heat into pressure. Each valve would cause the temperature to drop slightly. How many valves can be chained together would depend on the average channel diameter and fuel/gas used. Below an ideal channel size excess valves would decelerate or extinguish the flame. This could be useful for rocket engines, imho.
I think this serves as the key to what Tesla was talking about when he was saying his turbine engine could achieve 95% efficiency. If the Tesla valve is acting the same way a Shchelkin spiral does, enabling a deflagration-to-detonation transition, that means that the thermal efficiency of the device is automatically north of 50% by virtue of the detonation which can even hit 60% if sufficient supersonic velocity is hit (I saw those numbers around mach 6). Even around 50% puts Tesla's turboengine it in the same fuel range as the diesel engines that power billion dollar freight ships which is insane. Given that Tesla quoted his efficiency at around 60% without steam in the gas it might not be crazy to think he really wasn't talking about mechanical efficiency but rather fuel efficiency. If he managed to make true blue pulse detonation chamber he was literally working on someone that the rest of us wouldn't catch up to for another 30-50 years. Using the same gas expansion principle as what's hurling the combustion gases faster and faster should apply to liquid water pumped through an adjacent Tesla valve making use of the heat which would normally be wasted turned in to useful force all without any moving parts. Considering that you're making use of waste heat by boiling water with it and that Tesla's turbine improves when you adding steam due to (I believe) both water's heat transfer potential as well as viscosity this means he might have been telling the truth. Personally I think the 95% thing is a pipe dream but I still have ambitions to make my Turbo-Gasifier fed Pulse Detonation Tesla Turboshaft Steam Engine.... with an aerospike nozzle for added insanity!* * My understanding: Aerospike nozzles are really effective/efficient at all kinds of speeds/pressures meaning they'd make a hypothetically great fit with a Tesla turbine as their need for large surface area cooling ties perfectly with the turbine's need for steam to improve viscosity/inner turbine pressure while taking advantage of the fact that the Tesla turbine doesn't care about steam quality so you can prioritize your water flow around the cooling of the nozzle without worrying about water drops running a minigun through your turbine's blades.
they most like;y do use the effect of fast moving air already across sharp baffles and other eddy/vortex making flow obstructions with high-speed electric motors, to work how they do, just not in the specific long 'Tesla' style seen here.
When it comes to actual applications, although interesting, thermodynamics tells us that the flame cannot gain more energy through the valve. So it removes energy in both directions. Check valves (etc.) may just be a simpler alternative that are easier to maintain.
Old engineer here. Was unfamiliar with this valve. Thank You! Could use to make a woodstove chimney, could even put fins on the retardation loops to further enhance convective heat transfer. Could make a propane patio heater that doesn’t just blow all the heat out the top.
@@reddpill Despite being immediately "discredited" by the mainstream pseudo science establishment, if you will, his technology is being utilized in turbine engines on commercial airplanes. Then end result, the airports charge enormous sums of money for fuel that the airplanes don't use.
@@barongerhardt yep. Combustion velocity is hilariously slow. The laminar flame velocity of hydrogen is roughly 3m/s. Gas turbine combustors operate at around 20-40m/s. Turbulent flame velocities are higher but not by that much. And if the velocity increases the engines flameout.
@@barongerhardt not everyone is an English major. Maybe you should try reading it thinking about it three times adding common sense to it thinking about it again before answering some of us are here for the Practical knowledge and not the English lesson Had we wanted that we would be watching different videos
Interested in seeing more lost technology? See my most recent video about recreating an ancient Japanese firework: ua-cam.com/video/yvoUYEu3o-c/v-deo.html
very cool
What's a practical use for the Tesla Valve? Are they in regular use anywhere today?
@@Hickeroar This invention was never meant for typical "day to day" functions like that of use in hydraulics or other "pump"-like situations because it A) doesn't have a release, B) only is meant to directionalize flow, and C) won't prevent _ALL_ flow (of either direction). Also, it's not nearly as cost effective as the other forms of typical valve systems that exist, nor was it ever intended to be used as such. It pretty much only has a practical use in fluidics, which isn't what most people would even understand without a background in micro-engineering. It's effectively a diode, not a true "valve", as there are no flaps/points of full restriction, but typicallly most people don't care enough to fight for the name of "Tesla Diode" to the patent office.
Also, it should be noted that this video does _not_ represent a "true" Tesla Valve's form, as the ports are misaligned, not at the correct internal depth, and the loop-backs aren't fully functioning as Nikola's design would have. Had they been a full "100%" replication, the gas flowing "back to front" through it likely wouldn't have traveled as far as it did. In Tesla's full design, restrictive force multiplies by a factor of 1.7x per rung, needing exponentially more force to travel further through.
@@RAW_Reality Very cool! Thanks for the explanation.
No I want to see the supersonic gas acceleration!
with a title suffix like “explained with fire” it didn’t even matter what this video was about I was sold. In all seriousness that was an awesome video. Very interesting.
Yeah! More things should be explained with fire. 😊
Gotta love fire
Not a single word in the short
Maybe he can watch a video on how to pronounce "Valve" correctly, instead of "Velve"
There's a lot going on--I'd like to see it at a much higher framerate.
Dial playback time of the footage to 1/4 and you’re good to go 👍
Smartereveryday or slowmoguys
@@realfoggy totally the slowmo guys, they are made for this job, while smarter every day could experiment on this
@@petergoestohollywood382 Thank you Peter
.. it is really a cool way of watching.
@@realfoggy my first thought
I am stuck on him saying velve instead of valve.
me too
Same, that’s the whole reason I looked through the comments. I couldn’t have been the only one.
vulva
Posta...
Glad it's not just me.
So where's the supersonic extended tesla valve? Let's see it!
Hello, I am a physics teacher from Egypt.
I am a huge fan of your work! I love how easily and effectively you explain these phenomena.
Thank you sir.
Wow do you use them to teach? I'd envy your students if so
Revi M Fadli I try to use either real experiments or send them links to great UA-cam videos such as this one
Cool
Use balloons and watch how fast they shrink when their air is released into the valve. Of course you would need to use an airtight adapter for accuracy
That is awesome idea.
That would be interesting but a different issue. Here is trying to illustrate HOW it works. The balloon test would show how well it works.
@@presto709 Colored smoke inside the ballonne maybe?
At first I thought this wouldn't work, but upon careful consideration it is a pretty good idea. Also this brings up some interesting applications and questions. If a proper setup is made (following your model), can this valve theoretically infinitely accelerate airflow?
You spelled "velve" wrong.
Up next, explaining the human vascular system using fire
Using taco bell i mean?
@@maxzzzie vascular is veins and arteries
@@samalbury9183 i didn't know. Just guessed xD
... using a real human vascular system
God I hope someone injects napalm directly between my toes
I would be interested to see what the differences are in comparison to just a straight pipe and either direction in this valve to really get a good idea of how much acceleration/deceleration is happening with each direction of travel in the valve.
Yes the speed is definitely different, I think both the size of pipe n amount of gas inputted will matter however I’m sure this one would definitely be faster because it has rapid increase meanwhile others will have constant increase.
Time to partner with the slow mo guys and smarter every day.
YES please: this!
I can guarantee Destin would love to do the expanded video with you. Potentially throwing some type of projectile at the end...Perhaps. I am thinking 12 foot long with a cork ball at the end.
Nighthawk in slowmo every day
EXACTLY WHAT I WAS THINKING!
The three of them!
I'd like to see how fast you can get the flames to go in a long one
Like 1 that is 100 feet long. Also I''d like to see one with a Solid Fuel inside and see if that burns faster also.
I wonder could you make a propane engine that uses these as valves both intake and exhaust. No moving parts would be amazing for engines. 2 stroke in this case.
Or a circular one. Like a homemade flaming accelerator :D
@@Saka_Mulia Amazing idea!
I'd like to see that also. Then stick a ping pong ball in the exit end and see it it goes supersonic like they do with a vacuum cannon.
I guess velve is the cool scientific way of saying valve.
Josiah VonB
I think it’s a Canuck thing, eh?
Normal people who want to visualize gas: Use a colored gas.
NHL: SET a colorless GAS ON FIRE
looped comparison snippet at the end was lit!
That pun was terrible and you should feel terrible. Have a Like.
If you say “velve” one more time! I kid, this is the most entertaining demo of it that I’ve seen!
This is how Michiganders say the word he lives in Michigan and I do too and this is how I speak
Lolol. I can’t really talk. I live in Louisiana and we pronounce all sorts of words weird!
Computer Music All-stars haha same I can go anywhere else outside Louisiana and they just somehow know I’m from there when I speak even though my accent is barely present
Reminds me of my teacher who used to say "melk" instead of "milk."
@@JamieVegas In Norway we actually say "melk"!
I am very familiar with the “rapid passing of gas”
I came down immediately upon him saying that lol
Ah.. a man of science, I see. 😂
I laughed a lot harder at that than I should have 😊
😌😏
boomer humor
I’m glad to learn about Tesla velves.
I had to stop watching. Omg... Kinda want to slap him then buy him a beer and explain the correlation between proper pronunciation and OCD.
Does nobody appreciate local accents?
So how would you pronounce valve, Emilia?
@@victorwelkin9136 what accent do you think that that is?
🤣 I came to the comments to find this. Velve, velve, velve 🤣
23 Timestamps for the "velve" lovers out there!
0:21
0:24
0:29
0:37
0:49
0:52
1:05
1:24
1:31
1:37
1:43
1:50
1:59
2:17
2:53
3:36
4:22
4:30
4:42
4:50
4:57
5:05
5:16
Thanks brother
Doing God's work
😆😆😆
🅱️e🅱️🅱️e
Thanks *velve*
If I had to guess this guy’s age, I could narrow it down to somewhere between 16 and 40
12 and 40
@Sassy The Sasquatch I think they're talking about his round face. Round faces almost always reduce the look of age. With a beard he looks 30ish, without it, he would probably look 20ish. I used to be that way, then I lost weight XD
I’m thinking closer to 16 based on his use of the phrase “passage of gas”
You missed it by like 4 years.
I’d guess 25-32
High speed is not high enough and hence, the slow motion is not slow enough.
Do it longer! That would be interesting
When the flame is going in the "fast" route, it actually reminds me of the V3 cannon from WWII.
That cannon worked by having propellant charges in side chambers along the barrel that were angled towards the muzzle and, as the projectile passed each pair of chambers, they'd ignite, giving additional force to the projectile.
It seems the same could be happening, here. Each time the flame front passes by one of the teardrops, there's a secondary front that makes it's way around the rounded edge and then accelerates down the straightaway back into the main flow, but behind the main front, possibly adding more speed to it.
V3 cannon from WWII
Well spotted, i wonder how segments it would need to meet peak velocity.
Also, probably incorrect, but if you could put a few small segments of this valve at the back of a regular gun, prior to a riffle, maybe you could have a more efficent combustion/faster bullet velocity,
@@thebobman69 in my head if you add too much length you would build up too much pressure in one of the tear drops and cause failure at some point in the valve. But I'm not engineering inclined.
this seems like the combustion equivalent of a coil gun
Really great idea! Beautifully demonstrated and explained as well!
Dont you think its better if he used 3d version of Tesla valve for instead 2d version
Fr
“Is there anything propane cain’t do?”
-Hank Hill
Do I look like I know what a Tesla Valve is?!
It cant kick your ass.
@Gray Au Well, figuratively, but does it qualify literary?
A good barbecue
yeah, no pollution? it can never do that.
I learned two things today.
Valve is velve. Tesla valves exist.
I can’t unhear it
Actually no, it's "valv" in both american and british english.
I'm glad I wasn't the only one!!! :)
Thank you
@@dogipug5646 sarcasm
That’s a really cool phenomenon! I wasn’t aware of Tesla valves before this but the concept makes sense. This makes me think that it’d be neat to rig up something with different powdered metals in each chamber. I’m envisioning different colored flames in each section of the valve. I don’t know how feasible that would be. Awesome video!
Ah yes, the “chinese finger trap” of air valves.
Nope .
@@d6wave Thank you for contributing such a wonderfully informative comment.
I think he is lying cause Teslas dont use gasoline. They have electric valves.
Ok , theo .
@@greenlawnfarm5827 No, they're belt driven. It's the pistons that are electric. Duh.
I'd love to see this with smoke or colored mist
Rachel Hoffmann Yeah, it would be nice to remove the nonlinearity that is combustion and just see pure flow.
I would have been much instructive on the properties of the valve and more beautiful
I agree I think smoke would have given a much better demonstration to show how the properties of this valve work.
Rachel, great idea!
That was my first thought, someone who vapes would be ideal for blowing through this with a giant puff
What if you explained fire with fire
Wow u are everywhere
Thanks for this. I’m thinking about making an intake for my compressor box. I’ve thought about baffles with foam but I think this would work better when adding a flow fan that will be either inside or on the exhaust. I’m in the thought phase and tons of other projects but I would like your opinion.
I’m wondering if “compressor box” is:
A. The intake for a shop air compressor
B. The intake for a automobile engine with a turbocharger or supercharger
Btw I am wondering if automobile exhaust pipe performance would be enhanced?
I'd like to see water mixed with a particulate like glitter being pumped through this valve. The flame demo was really visually interesting though
"Velve"
-NightHawkinLight (2019)
Zot Fleischer This is how Michiganders say the word he lives in Michigan and I do too and this is how I speak
Also popular: Nukelar, Aluminum, ............
Michigan Mitten you speak wrong, pronounce the word as it's spelled or you sound like an idiot
Tonny Malero aluminum is correct, aluminium is wrong
@@greenthizzle4 I know :-P Murican language
Nice!
Thanks Cody! Loving the charcoal series.
Now both of you is here... 😄
THANK YOU OMFG WHAT AN AMAZING IDEA!!!!
ey
5:02 - Algorithm brought me back here and now I wanna see the supersonic version of this experiment!
Your work is amazing, btw.
Yes, he never did come back this to do a super long Tesla valve. I've always hoped.
NightHawkInLight: Check out this really cool gas effect with fire!
Also NightHawkInLight: Oh man, I can make a gun out of this.
Actually I was wondering how this design would work in a silencer. I guess they already do something similar.
(Plasma cannon)
@@ИванСнежков-з9й If you look up smarter every day silencer, Destin did a few slow mo shots of suppressors in action. I'm not an engineer but the idea is similar, the main difference, is that the first half of the tube is a big void and the second half is a "valve" setup. If I recall correctly, in the video, the suppressor company owner says that the reason for this half and half split is that you want to bleed as much of the energy of the gas as possible before it exits the gun and suppressor. The most effective way of doing that is just a giant void, but you would need extremely long/large tube to reach subsonic speeds. So they compromise, by have the gas work against itself in the second half. At the time, it was hard to tell how much that affected the gas without something like this in context.
MURICA
@@ИванСнежков-з9й I watched a similar video last year where the guy used water as a demonstration. Then it came to me on a suppressor design like this that would cancel out the noise of the gasses. But it would take a cnc machine to cut the parts out. Good thinking Иван Снежков.
velve
How to make a video to show how smart you are and mess it up with one word smh. It was annoying to hear
Ha! I know right, that's foony
Tesla velves
Exactly! I was afraid I was the only one who noticed.
He needs to try it with two types of liquid. Aquavelve-a and aquavelve-b
Everytime he says velve my eyes cut to the title.
I didn't hear it till I read this. Now I can't stop hearing it
This... totally did it. Looking at the comments solely for this comment. Thanks for not disappointing.
I keep hearing bell.
@@Dresdentrumpet and you never will.
Smartass.
Talks perfectly normal, no sign of unique dialect... WHY "VELVE"
Ghostly agreed
i heard valve
God I love nerdy youtube comments! perfect.
My guess is Belgium's to blame. Only cause on one of his videos he shows a patent request or paper showing from Royaume de Belgique.
"My way of spelling the word is the only valid way. No one else can spell it differently."
Imagine what a car exhaust would sound like with this.
It depends on the direction it was installed!
bruzote Yes, you need some back pressure, just not that much.
I wonder what would happen if you run a high volume compressed air line the wrong way through the valve?
🗯🗯🗯🗯🗯🗯
Where would you need this? Or why?
u mean like tesla?
It will go "Wooo-WOOOO"
make another one and connect them backwards so the flow changes.
Is that legal?
*BOOM*
That is a perfect comment
How to create an explosion 101
Wait. If you do that and have a battery/conversion unit in the middle couldn't you have a damn near infinite propulsion engine? If the increase in speed results in a gain of kinetic energy meaning a surplus which can fuel the combustion process and still have the energy to fuel a battery/ capacitor
Fascinating, never heard of something like this. But makes sense.
This looks like some runic magic but is really simple once explained.
Everyone out here obsessing over "velve" like they've never heard of dialects while all I could think of is supersonic flamethrowers by using this kind of velve.
Don't you mean suparsonic flemthrewors?
Well ... technically speaking, the idea of this valve is to restrict the gas flow from a direction rather than accelerate it from the another. For a flamethrower, a straight pipe might be better in terms of gas speed after it's lit up.
It's just my guess, correct me if I'm wrong.
VertUnix straight pipe getting more narrow as you get closer to the fire end.
Flammenwerfer!
@David Robinson !!!
Some one have probably already meantion this fact, so here it probably goes again:
In my study on fire and explosion saftey I learned that the flame front in a combustable gas mix will accelerate over a distance. The fun thing is that turbulence in the flame front will make the burn accelerate even faster and that is what you see happens. At one point it will reach a critical speed where the flame front is faster than the speed of sound in the medium/gas mix and the flame front will get a sudden increase in speed. This causes even more turbulence and even further accelerate the flame speed.
The transition between subsonic and supersonic flame speed the flame goes from deflagration to detonation. Simply put, you go from a burning flame to an explosion 😀
So you do not need more tesla valves, you just need more stuff inn there with sharp edges to create turbulence and a longer tube. Try it out with a long plexi tube and you will get the same results. One empty and one with a lot of obstacles.
This is one of the reasons why a gas explosion is so much more dangerous in a confined space with a lot of stuff/obstacles than out in the open.
Been a few years since I studied this topic, so correct me if I remembered it incorrectly.
-The random UA-cam mechanical engineer 🤘
now that is some real brainfood
So you’re saying the more things in the way, the faster it goes? That’s interesting
Not exactly, you do not want to obstruct the flame so much that it can't continue, but yeah, the more turbulence you can create in the gas mix the faster the flame will burn.
Objects with hard corners will do this as the burning flame front will push on the gas mix infront of it, speeding it up and thereby creating turbulence when the accelerating gas mix hits the objects and disrupt its flow. But it is the turbulence that is the key, so you are free to introduce it into the system however you like.
Filing cabinets hanging from the roof in a 40 feet container filled with hydrogen and oxygen gas mix would make an perfect example! 👌
Yeah the assertion toward the end that the valve actually facilitates acceleration is simply false, showing that the guy didn't bother to learn physics thoroughly before making youtube videos.
Tesla had one hell of an imagination.
Thanks Ben - a first-class demo. It impressed me so much that when I needed a special respirator valve I remembered it and used a modified version. Great job.
You explained this, and I'm like "Oh, that makes sense." And then you're like "But you can't picture that unless I set it on fire" and I am okay with that too, since this is the video I chose to click on
Mheheheh heheheheheh heheheh mheheheh fire is cool mheheheheheheh heheheh mheheh heheheheh
A fire front is different than a moving gas. This doesn’t show the way propane moves through the valve. It just shows the flames progressing.
So he should have used liquid?
Trace Trace He probably should have used steam or something like that. It still gives a good idea of how it works though.
He should have blown colored smoke through it.
Only reason I scrolled through the comments was to see if someone had already mentioned this. Looks good but does not show the valve functioning at all.
I think you meant velve.
Is a flame-front really a good analogue for the gas’ movement?
No, I don't think so because the Tesla valve operates from disippating kinetic energy from a flow. A flame front is mostly independent of gas dynamic effects in this case. It sure does look pretty though
It's honestly not. Water with glitter or colouring would do much better. Also doing this in a much smaller scale might exaggerate the effects.
no gas movement and flame front are two different things.
But is still clearly shows the effect the valve has does it not?
@@NoName5589 The gas is expanding at a really high rate. It's literally spewing stuff backwards. There's no constant pressure from the inlet. The valve is based on momentum and friction affecting the flow from the inlet. There's no flow. It's equivalent to demonstrating the flow of a river with a burning fuse. There's no momentum in a burning fuse. There can't be resistance of momentum to the burning of a fuse. A boat on water?.... How can we demonstrate the friction of water on boats? Let's move a boat with EXPLOSIONS! YEAH!
Very cool video. You should definitely try a longer version to see how fast you can get the flame traveling. Also, would be great to see it in even slower slow motion. Maybe a collaboration with the Slo Mo Guys?
I love how this channel has extremely educated followers.
Agreed
Mshayen J Then there’s me
confused by all the comments
Well like minds think alike. This happens to me on twitch in particular Where after joining a community for a while, I start noticing people from that community in multiple other communities I'm part of. It almost feels like they're stalking me.
Ooga booga i eat glue
I read this comment and the comment directly below it talks about how he got a nerdboner when someone said supersonic speed
Show it with blowing smoke in there. Just like a smoke machine or something. Im curious now.
smoke would have been a better demonstration.
Or tilt it up right and used sand...lol
Yeah my immediate thoughts too, idk how fire and propane was the first thing this guy thought of.
Joshua Freeman His last video could be the reason, as he says in this video
The gases that would be used in this "valve" are heavier than air and smoke is lighter. It could be a significant difference in result but it would still be interesting.
Everybody: just use a liquid with particles like glitter in it to visualize the valve
NightHawkInLight: there is no other way to show it than using propane and ignite it :D
Destructive minds come up with explosive actions.
Or run a model in a CFD program
Or use smoke?
@@thenaylor it would work, but I prefer explosion
@@DehimVerveen A program only uses models of how it thinks air should behave, the knowledge and formulas have to be known before CFD software can even be created, this is a much more reliable and concrete way of proving that it works rather than a computer doing what may or may not be the correct equations
Retired University Physics Professor: Where I still teaching, this would be required viewing for every student! These valves have been known about for a long time but I've never seen them explained any better! Kudos on a job well done!
Hey "professor", it's WERE
@@MCphattyStoolz I knew that's what the one comment was going to be. lol. Dan Furmanek worked at the University of Buffalo... as an Adjunct Professor... so... position and grammar = non-essential
Could something like this be applied to accelerate ions?
Wouldn't using a colored smoke be more accurate? It seems to me that this is just a test of the ignition acceleration of the propane rather than of the speed of the gas through the valve.
Yes this is pulsed ignition acceleration. If we want to test out a sustained flow, i think it would be harder to see the acceleration. I wonder if the acceleration is only achieved with the continuous ignition.
Well, that flame front is drawing air from the ignition side, which is why it travels like it does. Flames in tubes like this create a suction at the ignition point. Not a strong one but a distinct one.
@@Solnoric Lower pressure/higher velocity is the hallmark of the Venturi Effect. So the flame is lowering the pressure inside the valve behind the flame more and more the further it travels.
i just heard about Tesla valves a month or so ago and this such a freaking _cool_ demonstration. i love this
This needs a collaboration with the Slow Mo Guys to see it better.
@@mdrzn I was just thinking this!
This valve was meant to be a flashback arrestor for hydrogen.. in the video he didn't make the buckets curve back into themselves enough though
Makes me wonder if you had a Tesla valve that reduced the radius of the openings in the flowing direction if it could behave like a rocket engine.
Yes but it wouldn't become more effective with more "nodes" (the switchback sections) as you will get choked (sonic) flow from just one de Laval nozzle (a constrictive section where it narrows followed by a expansion section)
I would pair a bunch of these nodes in the same way we has here BUT with the final one having a constrictive and then expansive section. That way the final one may achieve supersonic flow
You're essentially using the flow restrictive properties of the valve as a kind of virtual combustion chamber - it's not a solid wall, as with a real chamber, but acts like a semi permeable one.
So: A Pulse Jet engine? I've seen a telsa valve on a pulsejet before, but it didn't seen as efficient as a regular valve.
@@benjaminmiller3620 i would like to see some experiments along these lines.
Benjamin Miller the one you seen was mr teslonian and he didn't really make it with a proper valve
It may be possible to utilize this to make a primitive pulse jet engine.
Lol i was scanning through the comments to see if someone else had the same idea i just posted. I think it would be a bit more advanced than a standard pulse jet. And a lot more efficient as well
I came from drawing pulse jet projects too
Oddly enough that was what Tesla originally designed them for, to be used in a pulse jet engine to power his generator that he designed. He designed them for the Pulse Jet engine since the one way valves they normally used used moving parts and simply broke to quickly to be used efficiently when attached to a generator, even Teslas very efficient design. The youtuber Integza has some amazing videos discussing alot of these ideas and even putting them all together and testing them, as well as showing the original patents and improved designs and I highly suggest looking into his videos if youd like to learn more about these things
I would prefer use the conventional valves
I would be interested in seeing smoke pass through the valve
it would make more sense that way.. have smoke and a vacuum
I want to smoke out of it
The phrase: "accelerate combustion to near supersonic speeds" gave me a nerdboner.
Find a way to put a projectile and you'll have a gas railgun
I’m thinking rocket launcher.
@@franciscoguinledebarros4429 even ww2 cannons where supersonic
@@santiagoperez2094 yeh but im talking faster
In fact it's a rail gun without any complex electronic or control.
If it works, it's the simplest version of a "rail gun" you would've ever seen.
Would've been nice to have a simple straight tube as a comparison to this valve.
No it wouldn't. A straight tube isn't a valve. It would be pointless. The demonstration was to show how the Tesla valve works by directional flow. An open flow or unrestricted flow, would be an uncontrolled flow. Valves are meant to control flow in one direction or another and/or increase or decrease pressure or volume of a fluid or gas in a conduit and/or a collection tank. An open conduit or vessel, simply allow a liquid or gas to flow freely and only be controlled by gravity or surrounding atmosphere. In other words... There is no comparison to be made unless your demonstration is on how a valve works in general. This demonstration is being made under the assumption that you already have basic knowledge of what valves are and what valves do.
@@commonnons3ns316 not pointless. It would serve as a control to contrast with.
@@commonnons3ns316 You just tried to convince the world that zero is useless as a number because it doesn't have a value (it contains nothing).
The straight pipe flow would be interesting because of the acceleration of the flame-front by expansion of the burned gas compared to the somewhat constricted Tesla-valve.
Yeah, a straight pipe would be awesome! it would be like having two cars race each other and then in another split screen we have a tub of fried chicken just so we know what the base level of context is....
@@DreadX10 0 IS a value, null has no value.
mechanically turning a combustion into an explosion sounds like future science
That's pretty interesting.
I wonder how much of an impact it would have to make a tesla valve shape out of a tesla valve, like a fractal. hmm...
Triamcinolone Acetonide One can imagine a logarithmic increase in the differential flow. Hmm
Damn you! Now I need to know.
It may help to have smaller Tesla valves in the main path, but a big reason it works like it does is because of the flow around the branches. If you were to put smaller branches inside the larger branches I have a feeling it would hinder the performance.
Then again, the whole concept of the Tesla valve is pretty counterintuitive, so it's hard to say. I'd probably watch a video where somebody tried it.
noone:
this man: **velv**
No one: **original comment**
Everyone: *No one: ""*
noone:
Elon Musk: I own that name now. Ha ha ha, rockets. Ha ha ha, tee hee.
I stopped watching because I couldn't take the pronunciation any more.
@@smittywerbenjagermanjensen1051 weak, haha
I had seen the Tesla valve in one of his (Nikola Tesla's) drawings. While it is fairly easy to comprehend, it is so incredible to watch it in action. I would have never even thought about the fact that the flame front would accelerate in the opposite direction. I had been so focused on the fact that it would arrest the passage when trying to run backwards, that I didn't even think about it. He was operating on another plane of consciousness, to say the least. This was such a simple but elegant way to demonstrate his valve. It was thrilling for a mechanical/science nerd like myself to actually watch this demonstration.
It reminded me of watching a feather fall like a rock inside of a vacuum chamber. It is so much better to witness than it is to read about. Thank you so much.
I agree, this is the best visual example of how the Tesla Valve works that I've seen yet
@@shanerountree3623 quick notes: as the video observes, using a combusting gas causes expansion/acceleration inside the valve, which causes this visual to be a bit misleading. Second, the fact that he's using a short pulse of gas rather than a steady stream means there is no positive pressure preventing the massive back flow that we see. I suspect we would see something quite different with smoke and an air pump. I would also be really curious if we would see some periodic resonance in the flow at steady state or if it would just be random chaotic turbulent flow.
@@emissarygw2264 very true, I should clarify that this example reallyshows how the flow acts in the valve in an cool visual manner.
School should let ppl experiment more not just read and write.
Tesla Velve* lol
This is extremely cool, I would love to see you do more with the sped up flamefront in the Tesla valve, like maybe create an extremely long one and see just how fast you can accelerate the flamefront
Everyone in the comments: velve
Fabio Fernandez i know 😂 *velve* , it's so strange and I love it
*_V E L V E_*
I thought I was hearing this. I had to pause several times. "vehlve"
@@PovidisII You know, it *doesn't mean anything* when you separate the letters like that.
@@lajoswinkler ikr...
I loved when you said,”it’s actually louder” because in a way this is exactly how a ruffle suppressor works. The gases released by the combustion of the power is what’s causing most of the noise other than the projectile making its own dispersion of the air around it. A suppressor is kind of like a bunch of holes and stuff with a path for the bullet and so when the expanding gases exit the barrel they are slowed down by their own turbulent way of moving around and so the effectiveness just comes down to what design helps me release the pressure slow enough so suppress the noise but not decreasing velocity or compromising the unit
Maybe very small modified version of this valve could act as a suppressor
@@jotaro4874 my thoughts exactlt
Sound is a relativity thing governed by particle state, in aircraft design its also there for the combustion, supersonic & hyper-sonic combustion.
So everything you're hearing, which can be considered as loud from gun fire, is probably breaking the sound barrier including the combustion of the ammunitions fuel. eg; gunpowder combustion velocity and projectile velocity.
Pressure and Temperature will also make a difference.
Particle state is everything, up to and including charged particles traveling instantaneously (faster than light) around a pulsar star creating superluminal booms in an electron blue color via a vacuum known as the quantum vacuum. (pulsar emissions consist of Cherenkov radiation)
Actually most of the noise from a rifle bullet is down to the bullet travelling supersonic. Hence why silencers work better on subsonic ammunition.
@@CHOPERUS23 ^^^^^^^THIS GUY^^^^^^
As from my class notes, I remember that the internal edges of the Tesla valves should be a little bit steeper. You can try that and see what's gonna happen
Edit: sharper
Every time I look at this, I wonder how well it might apply to exhaust and intake systems on cars.
It might increase scavenging by a lot, since exhaust gasses are also still expanding when they pass the exhaust valve.
Interesting...
@@906MediaProductions Ah! I hadn't considered that at all. My primary thought was accelerating the expulsion of exhaust, since we want it gone in a hurry. It might also tamper with catalytic converter performance, which hadn't dawned on me until you commented. If nothing else, it might make for a slightly boosted intake system, maybe approaching the level of a cold air intake system. I wonder if anyone has even tested the notion.
It would be interesting to see water flow through this.
I would as well
@@atartup I'm inspired to give this a try with blender. The mantaflow engine can simulate smoke, fire and liquid through this geometry.
The valve could be more effective on a denser fluid.
This was my thought too. What kind of water pressure increase would occur similar to the combustion pressure.
Next video!!!
A collab with Practical Engineering is in order.
Hey, really nice visual presentation!
I believe, just like in a pulse jet engine, the sub atmospheric pressure in the wake of the mainline flow accelerates the return loop flow. I agree with your prediction on burn acceleration to supersonic speeds. Pulse detonation engines use flow restriction coils called a Shchelkin spiral to transition from a simple combustion to detonation.
Wow, I did not know about Shchelkin spirals. I'll be looking into those quite a bit. Thank you!
Now that is a clever guy. UA-cam isn’t all bad after all!
"So i had the idea of filling it with propane ..."
*"Everyone, GET DOWN!"*
my brain when he said that xD
The engineer in me likes this because of the elegant design, the simple human in me likes this because fire
Two things to mention:
- schlieren imaging
- tesla rocket motors
I am not sure if tesla rocket motor could ever be light enough for flying.
@@asdfasdf71865 what?
I meant, instead of turbines, a tesla valve could be used as a burn chamber.
Maybe as a vacuum optimized engine.
But I’d go watch everyday astronauts video on areospikes. A bell nozzle engine is about as good as you can get. Especially the raptor full closed loop.
Aerospike engine came to my mind also. Just forgot the word.
@@Methoverbitches but imagine a rocket engine with no moving parts. You could also use it to make extremely small engines, saving literally tons of weight.
I am going to re-upload this video with the title "Edison Valve Explained With Fire"
.
.
.
(That was an obvious attempt at a joke and should not be taken seriously)
As long as they don't do one where they kill elephants to see how dangerous it is. Lol
hahaha.. might want to make sure its profitable first.
@@4jones82 I thought it was a cow?
@@RSChris666 nope, elephant
It's like Petyr Baelish and Shia Labeouf had a son and learned science
Lmao, too accurate; hit me with the lulz outta nowhere there; well played, sir.
Spot on haha
Then forgot how to speak English and pronounced simple words like valve completely wrong ☠️
i was thinking Ted Cruz on the dot since he also grew his beard out, possibly to throw off speculation that he is in fact the Zodiac Killer
I'm thinking of a less sarcastic and less eccentric Wil Wheaton. But I'll have to see his d20 rolls first.
Let me be redundant here: Tesla was a genius!
yeah he was.how electricity transmitted our house,it was his idea
That is more like an understatement, he was a mega-ultra genius.
And a Filantroop.. its like he baked the cake and we are playing with the crumbs..
@@wantedwanted3186 that was never possible and never worked well
Not just genius ...He was extremely hardworking and we are enjoying hus benefits
The real Tesla was a gifted genius.
Alejandro Bello no shit Einstein
podak10 someone is having a tough life
Nathaniel Zamora or someone can’t get a joke
Versus the fake tesla?
podak10 i just don’t see the humor lmao.
Hey so this happens to be something that is quite interesting in the combustion world. Flame acceleration is caused by a few things but a common thought is that turbulence and flame instabilities are driving forces in flame acceleration. As you wrinkle a flame it gets more surface area, which in turn increases the heat release rate, thus making the flame go faster. You can in fact accelerate a flame to very high speeds possibly even supersonic speeds. An interesting phenomenon is whats called Deflagration to Detonation Transition (DDT) where an accelerating flame can form into a detonation wave under the correct conditions. Its still not fully understood but definitely something interesting to look into. Thanks for making this video! A lot of interesting physics going on here.
so.. here is a additional twist... I used this same idea on a potato cannon. I was driving marble potato to speeds high enough to punch thru 1/2 inch plywood. But what if this was combined with the tesla valve to make a improved pulse jet?
@@preciousplasticph How did you cause extra turbulence inside your potato-canon to speed up the burning-proces?
Would be interesting to see a detonation wave-front navigating the Tesla-valve.
@@DreadX10 Could one possibly use this force for weapons of mass destruction? Asking for a friend
@@DreadX10
Mythbusters did a great video on this, I think. Something like junk bailing wire crumpled up or anything really. NOT STEEL WOOL sweet baby jesus i found that out the hard way!!😨
Lol and yeah maybe avoid using rocks or something that could be swept up inti the barrel and block the exit during ignition...basically be sure not to create a giant claymore by accident😱😂
What happens to sound? I'd like to know what happens when you speak in each direction through it. Great video!
OHH its sure to have different pitches depending on the length. Experimenting with this would require some serious maths and/or some serious time-consuming trial and error with many different dimensions and designs
hahaha playing back at .25 speed to see what is happening... the irony of hearing "rrrreeeeaaaallllyyyy qqqquuuuiiiicccckkkkllllyyyy" 😉
how about rigging one of these into a circle. It sounds dangerous, but it was a curious thought.
you know, that wouldnt really work if you think about it. if its a circle then its a closed loop, right? and if you ignite a gas in a closed space (with walls made out of glass) guess what happens
Even if it doesn't explode, after one loop there would be no more gas to combust.
It would be really annoying to balance that; too much or too little pressure or resistance or distance causing delay would stop it -- other problems notwithstanding.
That's outside the box! Good chance that some-one will see an application for that.
Maybe a good way to demonstrate the flow throught the valve would be to flow water through it and add a little stream of colorant
The weight may distort it
@@jacobb5484 unless the valve were laid flat
you could use water with glitter in it and let the water flow vertically in both directions vertically
I don't think that would work. water is not compressible and the valve seems to work by using the ability of gases to compress
Chris Russell he didn't make the buckets curve back enough, he also should have made the channels thinner.. this didn't actually work as a flashback arrestor which is what tesla designed it as
“Velve”
Velve... Lol. I was looking for this comment.
Iz a gud velv
Cool video but man was it hard to get passed that.
So cringe. I almost stopped the video early.
@@Averna222 Past
OK, so this is a mechanical diode. it flows easily in one direction and resists in the other. this would allow you to change an oscillating flow into a direct flow is you set up 4 of these tesla valves as in a rectifier.
how can you use this technique to produce usable energy from a chaotic flow?
Holy shit, wave energy, like from ocean waves, with a *Full Bridge Rectifier!!* of Tesla valves. All you have to do is have an oscillating water source and you have a self acting, low head pump. With enough volume, you could set up a small low head turbine to run either intermittently or even constantly, with a reservoir.
@@jamesburleson1916 imma go ahead and screenshot this before big oil makes y'all dissapear.
(clicked here from the shorts) nifty video! I could watch that side by side for hours it's so neat. Thanks for sharing 💜
Little-known fact: Tesla also invented Velveeta.
space-x too ?
That was cheesy
@@akbychoice kobes pilot gave barrack husseins husband michael a pelvic buldge
😂😂😂😂
Acts like a valveless pulse jet.
Indeed, I wonder how much thrust was generated.
A valveless valve?
@@jeffmcvay Do you think acceleration would be achieved blowing compressed air through the tesla valve, much like the pulse flame?
I wonder how a ball bearing would react placed just in front of the initial wave at the start of the valve... would the ball accelerate within the valve and exit, or will it just explode...
I'm a simple guy.
I just want to see a flamethrower built from tesla valves.
Someone else has probably pointed it out already, but:
The same reason you noted for the valve system accelerating the expanding gas forward through the valve, also explains why the gas creates fast jets in reverse when you're forcing it backwards through the valve. The expanding gas front finds it easier to turn around and go through the valve "the right way", speeding up in the process.
As a person whose entire career was concerned with experimental fluid dynamics and heat transfer, this experiment of yours is seriously flawed but interesting nevertheless. You set out to demonstrate how the fluid flow going one way through the valve differs from what happens the other way with a hypothesis that it will be moving faster one way versus the other. Flame propagation is a different phenomenon. This is why the flame propagation appears to be much more rapid than the fluid flow in the device is likely to be. The fluid flow affects the flame propagation and mixing of the gas within air in the channel but this is not necessarily telling you much about what you set out to show about the fluid flow.
Flow visualization will be easier to do well using a liquid like water to which you can add particles (need to be near neutral buoyancy or really small, flakes like glitter, dyes, small bubbles etc. Gravity feeding water from a bucket into a funnel and then a tube to an inlet on your valve would be one way to achieve a water flow. Glitter flakes and appropriate lighting would get you there. With a dye, you could establish the flow and then add a bit of dye so a slug of dye moves through the system. I have done work using fluorescent dyes, fluorescein disodium salt or uranine are water soluble and absorb blue light with green fluorescence. The water should not have chlorine in it for best results with these dyes - distilled water or tap water than has sat around at least 5 days to let the chlorine diffuse out of it. These dyes are what they dye the river in Chicago with on St. Patrick's Day. However a food color dye could work but may be more difficult to see. You want to introduce slugs of dye off, on, off with continuous flow. Backlighting particles/flakes may work better than lighting from the camera side and glitter flakes won't need to be introduced in slugs to provide some idea of velocity in a video as long as the frame rate is appropriate for the speed of motion. You can adjust the flow rate some by changing the vertical distance between the water source and you flow channel. An adjustable restriction on the outlet side of the device could also be used to adjust the flow rate.
For air, you might try using a vacuum cleaner to draw air through the system - don't try and push air into it. But flow vis with smoke requires a dense smoke source or you will not be able to see much. But smoke in the inlet flow, then out, then in, etc. may show what you want.
Howard Petrie I agree. I may be wrong, but a tesla valve has no practical use in any industry. This valve is great proof that by manipulating the behavior of fluids within a container, you can decrease or increase pressures; just like proportioning valves on hydraulic systems, check valves in pneumatic systems, mufflers in cars, and countless other examples. This video has too many flaws in how it attempts to explain the behavior of fluids in a tesla valve. I guarantee that by using a combustible fluid and setting fire to it, there HAS to be some degree of a vacuum that develops at both openings that affects the flame propagation and does not represent how a fluid, under pressure or not, would behave in the same valve. You want to push a flame to super sonic levels? Lol good luck feeding that flame and good luck building a pressure vessel to handle that.
Dude, that sounds beautiful! Make is so!
@@jg1503 I like the thought of using air also and use a medium like sugar or flower, easy to get will show accumulations in the system and light enough to reasonable flow results.
I'm glad I didn't have to write this
I wanted to write a comment about this but you pretty much covered it. Thanks.
Be interesting to see this concept implemented into a 2-stroke exhaust pipe Instead of an expansion chamber.
There is a company that has sorta gone that route, while not a 2-stroke exhaust pipe, but a supressor for a handgun.
@FuLLeFFekT1 yeah the Tesla valve has back pressure when used in reverse as we all saw in the video.
I've been thinking about the acceleration effect. Each subsequent valve has a slightly higher pressure in the restricted direction which accelerates the flame. Probably a trade-off where the restrictions convert some heat into pressure. Each valve would cause the temperature to drop slightly. How many valves can be chained together would depend on the average channel diameter and fuel/gas used. Below an ideal channel size excess valves would decelerate or extinguish the flame.
This could be useful for rocket engines, imho.
I think this serves as the key to what Tesla was talking about when he was saying his turbine engine could achieve 95% efficiency.
If the Tesla valve is acting the same way a Shchelkin spiral does, enabling a deflagration-to-detonation transition, that means that the thermal efficiency of the device is automatically north of 50% by virtue of the detonation which can even hit 60% if sufficient supersonic velocity is hit (I saw those numbers around mach 6).
Even around 50% puts Tesla's turboengine it in the same fuel range as the diesel engines that power billion dollar freight ships which is insane.
Given that Tesla quoted his efficiency at around 60% without steam in the gas it might not be crazy to think he really wasn't talking about mechanical efficiency but rather fuel efficiency.
If he managed to make true blue pulse detonation chamber he was literally working on someone that the rest of us wouldn't catch up to for another 30-50 years.
Using the same gas expansion principle as what's hurling the combustion gases faster and faster should apply to liquid water pumped through an adjacent Tesla valve making use of the heat which would normally be wasted turned in to useful force all without any moving parts.
Considering that you're making use of waste heat by boiling water with it and that Tesla's turbine improves when you adding steam due to (I believe) both water's heat transfer potential as well as viscosity this means he might have been telling the truth.
Personally I think the 95% thing is a pipe dream but I still have ambitions to make my Turbo-Gasifier fed Pulse Detonation Tesla Turboshaft Steam Engine.... with an aerospike nozzle for added insanity!*
* My understanding: Aerospike nozzles are really effective/efficient at all kinds of speeds/pressures meaning they'd make a hypothetically great fit with a Tesla turbine as their need for large surface area cooling ties perfectly with the turbine's need for steam to improve viscosity/inner turbine pressure while taking advantage of the fact that the Tesla turbine doesn't care about steam quality so you can prioritize your water flow around the cooling of the nozzle without worrying about water drops running a minigun through your turbine's blades.
Honestly, I'm surprised. Dyson hasn't used this.
they most like;y do use the effect of fast moving air already across sharp baffles and other eddy/vortex making flow obstructions with high-speed electric motors, to work how they do, just not in the specific long 'Tesla' style seen here.
@Sam Sonite Lol
Need a Femto camera. This high speed frame rate isn’t high enough.
Clint Parsons or Elon musk i the new tesla car
When it comes to actual applications, although interesting, thermodynamics tells us that the flame cannot gain more energy through the valve. So it removes energy in both directions.
Check valves (etc.) may just be a simpler alternative that are easier to maintain.
isn't that just sonic running really fast through it
Yes, yes it was Rocket. ;)
Better view :
Speed 0.25x and here's the time stamp:
5:21 - side by side comparison
2:40 - Reverse direction in valve
4:04 - forward in valve
Old engineer here. Was unfamiliar with this valve. Thank You!
Could use to make a woodstove chimney, could even put fins on the retardation loops to further enhance convective heat transfer. Could make a propane patio heater that doesn’t just blow all the heat out the top.
That's an awesome idea :)
This makes me wonder about the benefits of incorporating the Tesla Valve into a rocket stove/thermo-mass heater.
Very interesting. The more I learn about Tesla, the more I realise how much of an under rated genius he was!
Now lookup Viktor Schauberger
@@reddpill Despite being immediately "discredited" by the mainstream pseudo science establishment, if you will, his technology is being utilized in turbine engines on commercial airplanes. Then end result, the airports charge enormous sums of money for fuel that the airplanes don't use.
Exotic Creature As a former commercial Aircraft Mech. Trust me they use the Jet A
@@Uncashill I didn't say they don't use fuel. I said they don't use much. A lot less than what we're being led to believe.
Yes, and the deeper you look the more evil Edison gets..
Drinking game... everytime he says "velve", take a shot.
I have alcohol poisoning now, thanks
i’d black out 73 seconds into the vid
"Supersonic fire" Sounds awesome, i wanna see it...
Yeah it's usually known as Dynamite
B G Ok then. Napalm it is.
@@barongerhardt yep. Combustion velocity is hilariously slow. The laminar flame velocity of hydrogen is roughly 3m/s. Gas turbine combustors operate at around 20-40m/s. Turbulent flame velocities are higher but not by that much. And if the velocity increases the engines flameout.
@@barongerhardt apparently you've never heard of sarcasm. Now on the other hand the flame from Dynamite is supersonic
@@barongerhardt not everyone is an English major. Maybe you should try reading it thinking about it three times adding common sense to it thinking about it again before answering some of us are here for the Practical knowledge and not the English lesson Had we wanted that we would be watching different videos
"Velve" because you don't want to get sued by Gabe Newell.
Not by the creator of Helf-Life!