Corrections and FAQ in this comment! Official FAQ video will eventually be on the second channel youtube.com/@alphaphoenix2 1) Really cool demo of Kelvin-Helmholtz instability in a much more controlled situation: ruclips.net/video/qgamfo86FQo/видео.html
Thank you so much for making such amazing incredibly high-quality educational videos that are very entertaining. I always learn so much from your videos. THANK YOU!
Do you think this could be used as a random number generator ? something like Random red, green and blue value for back lighting, light intensity and slice on the whole tube, (well a picture of it) and calculate a number from pixel values ... ?
@@smartereveryday If you build it, Destin will come...and explain it in a thoroughly charming manner. Usually with highspeed cameras. Side note: Dude... Why are you up so freaking early?! 😵
No, no. It's hoarding, because it hurts less when you need the thing a few weeks after you finally threw it away after storing for years. That way it's unfortunate timing, rather than a failure of foresight and planning.
too right. one day i may need the adaptor to plug a phone i stopped owning 20 years ago into a device i have never owned, so i keep the thing. my wife keeps asking why i have the spare room full of old VCRs and CRT tvs. i say "they may be useful one day"
Pro tip: set your quality to 4K for this video, even if you don't have a 4K screen. Even on 1440p, the RUclips compression algorithm does a real number on these swirls.
I just set up with 40" 4k monitor and new rig. I concur. EDIT: Even 2K looks brilliant on this new set up. I told my son it was cheep. He looked at the specs and said "Probably because it's only 60 HZ." Doh! I've been using 1080i Samsung TV as a monitor for 20 years. I just couldn't do it any more. So, I'm good. My brain hurt for two weeks after I set this up. I like a little game for relaxing. WOW! OOOO! AH! YES. OMW.
Have you tried running the water backward in the reverse osmosis tube? In water treatment plants, they do that to prevent clogging and preserve the throughput. They call this 'backwashing' or 'backflushing', but the don't deal with ink.
With RO you just remove the waste water restrictor and let it flush the surface of the membrane. There is a kit for that pump that would do it automatically for him but i don't thing it would work here because its a closed system.
came to second the back washing. RO shouldn't* need it but it would still totally work....do check the datasheet though. I havent worked in water filtration in years
A pressure triggered automatic backwash would be perfect. Adding a higher pressure shut off in case it eventually doesn't clear it might also be a good idea for the pumps health.
There are two important phrases that will cover most of your metal working projects: 1) Beat to fit, paint to match. 2) Grinder and paint make me the welder I ain't.
There are microfluidic devices called spiral separators. These are usually use separate different cells based on density. Probably not useful for sorting ink, but might be worth a try for fluorescent polystyrene particles?
What you want is ultrasonic separation. This is used in grand scale industrial applications. Basically using standing waves to "catch" particles. But be warned, that's a rabbit hole on it's own.
@@Axodus nope you're not. Controlled sound waves are far from uncontrolled vibrations. Also it's meant as a separation method below the tube. Unfortunately I was unable to find a public video on how it works and I'm not allowed to share the footage I have since it's under NDA and I really don't want to sour the relations with them since they are a valuable supplier.
@@Axodus it's ultrasound nothing a average human should perceive. There are of course individuals able to notice it. And kids / young adults of course.
17:55 The problem you had with the endcaps leaking might not actually be solved. Waterproofing 3d prints is notoriously hard because of the pores they have between the layers. This can be helped by extra perimeters and higher temperatures like you did, or smoothing the part by dissolving the surface with isopropyl alcohol vapors. However, most 3D printable plastics (like PLA and PETG which you used) are hydroscopic, which means that the plastic itself will absorb water. At very high pressure differences, like your 100 psi chamber, the water will still be forced through the plastic. A lot of submersibles with 3d printed parts have the same problem. You can try high-impact polystyrene (HIPS), which is not very hydroscopic.
I am a bad person - the word is hyGroscopic. ABS would work, and is extremely easy to vapour smooth using acetone. It is often used for pressurised water pipes.
The trick to printing a water tight end cap with petg is to use concentric solid infill with chamfers on the bottom. Because of the chamfers, each successive layer of concentric infill is offset from the one below it ensuring there's no straightforward path for the water through the print. You can also separate the print into an outer shell printed in vase mode for watertightness, and an internal part with the more complex geometry. I print canister filters for aquaculture this way. You can also thin pvc glue with acetone and use it as a water proof coating in a pinch.
There are multiple things to consider with hygroscopic materials, in particular "how much" water it can absorb, and "how hard" it absorb water. PETG for example does not absorb a lot of water (about 0.2% from what I've found) but it absorb it quickly, that's why a PETG spool is affected quicker with ambiant moisture than PLA. On the other hand PLA does not absorb water quickly but it can absorb a lot. And another thing, hygroscopic and water resistant are two different properties. Hygroscopic is about water absorption and water resistant is about degradation in water. PETG is water resistant (PET, PETE and PETG are used in plastic bottles) while PLA is not water resistant.
Cool project! I also liked the "supposedly working" quip: that's the hallmark of fascinating physics: you may end up in a phase when you do nothing other than sit mesmerized and stare at whatever you have built. The story here in Göttingen goes that Max von Laue sat for half an hour just staring right at an x-ray tube with a screen in front of it when first being shown his crystallographic patterns.
Wow this is really amazing, I think the fascination of the patterns it makes is the same fascination we have with fire, the patterns resemble fire. Awesome stuff bro!!
Reversing water flow through filters is used to clean massive aquarium filters. Also have you considered using nasty chemicals like a lava lamp? And nice work!
A fluid will always have laminar flow when is being sucked. Versa, it will always exhibit turbulent flow when is being pushed ( under pressure ). These 2 behaviors are governed by the local dynamic impedance. When a fluid is sucked, the suction effect creates zones of under-pressure which allow the fluid to start organizing (moving) itself through the path of least resistance/impedance and such, given enough time creates laminar though the engine fluid can have a curl gradient.
The patterns at the end of the pipe really remind me of surfaces of gas planets. I would be really cool to have the same thing as two spheres where the liquid moves between a inner spinning and an outer static sphere
Forget the filter! Set up a complex centrifuge cascade to separate the ink and water by their mass difference alone. As a bonus you can enrich uranium too
whenever you upload, not only is it incredibly interesting and educating, but the experiments, demonstrations and contraptions you come up with are so unique. you have a special mind, thanks for sharing that with us.
Pretty cool. BTW, gear pumps are quite quiet. Especially if driven by servo and magnetically coupled (bit overkill, but that was setup we used for pumping printer ink)
KSP!!! I was just playing it, I rescued a kerbal from orbit and then I designed a moon lander. I never really finished the stock career mode so I'm gonna finish that first before fully jumping into career mods like interstellar extended
Yay other a alphaphoenix vid! Thanks for making my day. Also yes prepared for the onslaught of RUclips copier vids and mass-produced knockoffs on Wish and alibaba
Maybe try removing the flow restriction after the ink at regular intervals to wash away the ink fouling from your filter. Backflowing some water through the filter may also help clear the fouling, though I'm not sure if your filter can handle that.
Great job! This is personally interesting as my 3 year old grandson ask his parents what turbulence is which they passed on to me. So I made a little movie for him using a coffee carafe and food coloring. I spun up the water and let it settle and become laminar, then added a couple of drops of food coloring. Due to some remaining shear it formed cylinders that were remarkably stable. Introducing a small diameter cylinder provided great turbulence on the backside. My grandson got through at least half of it before he got bored.
Your way of mixing science and engineering is infectious. Wacky ideas and none of them boring. Many of them people can do at home if they really wanted to.
I was thinking about how to remove the particulate from the water more efficiently. Some kind of prefilter would probably be very useful, maybe a cyclonic filter? Or perhaps with a different ink, you could use biphasic solvent separation?
Here is an idea. Use a higher viscosity fluid. Second, use a magnetic ink and use a magnet to re-separate them, no filter. PS brilliant and beautiful work 🥰
It wouldn't have any science lesson around filtration, but you could try mica powder instead of ink. It'll never fully diffuse so that you can continue to see the flow patterns by just pumping it through the circuit.
At first I was wondering why you didn't go for the classic mica in water approach, but by the end I understood it wasn't about the turbulent and laminar flow as much as it was about mixing and diffusion in total.
I work with heating networks (which is mostly just a bunch of water flowing through pipes) and there we also think of it as analogous to electrical circuits a lot! Basically the water flow throughout the network follows Kirchhoffs laws, and the "resistance" of a pipe is modeled as being dependent on the flow speed (because fast moving water will become more turbulent and so encounter more friction). It's a pretty effective analogy!
Enjoyed learning about this project! In my automotive electrical class, my instructor compared voltage to pressure in a water hose. Lots of similarities between hydraulic and electronic circuits as well. Understanding one helps understand the other- you're not weird for thinking that way!
Sounds like you need to high pass filter some of the audio, I'm getting a good bit of static on mobile and desktop for this video. Maybe a good spot for reference is 4:28. Great video though!
I am so ready for the reverse osmosis video. I fell down the rabbit hole when I put one in for my ice maker, but I'm sure you'll go much deeper with your video.
It's a very cool project for sure! I think the filters clogging is normal, on saltwater desalination they reverse flush the filters at certain times to unclog the pores and have a secondary pressurized loop for this. You could put in a second loop that does a reverse flush with clean water every so often. Of coure the ink could bind to the filter relatively permanentely then you would need different material for the filter (I mean you only need the ink not to go through, right, does not have to filter down to water atoms), but putting a reverse-flush on a timer could extend the life of the system at least a bit.
To make the filters last longer instead of ink use a long polymer of plastic with dark colour. Think tiny micro plastic beads that will be as fine as ink but easily stopped through a filter/
The reverse osmosis filter require rinsing flow on the outside of the membrane to keep it clean. Even with just tap water it would plug if it wasn't dumping water down the drain. Then you are restrcting the output of side, worsening the problem. I would consider recirculating the pumped mixture to keep the flow moving on the outside the membrane
The part I find most interesting about this is the choice of what to mix with the water. I'm curious as to where the sweet spot for particle size is. That filter is wild.
Doesnt it not make sense to try to plot a 2d version of laminar flow in a 3d cylindrical space? The center of the flow could be one way while the outter edge of that same cross section could be moving in the opposite direction. So knowing that wouldnt you not attempt to track laminar flow that way, or switch to a model that uses a flatter, more rectangluar shape than a tube to better reflect a 2d splice? Or if possible track the flow at different depths away from the camera?
I think it's cool but as a blacklight artist I have to suggest using fluorescent inks and mica powder to give the contrast. If you used fluorescent blue, red and green inks you would get interesting colors as mixing fluorescent colors is additive instead of subtractive so it would glow white by the end
If you did a larger scale vertical tube, you may be able to use it to separate the ink in situ, and just use a tiny pump on a duty cycle to pump the settled ink from the bottom to the top. Also maybe if you warmed the ink up it might not fall right away and would do cool convection things
This is like the fractionated elutriation filtered, color coded particle size, patterned laminar flow layer disruption display, from my impossible to implement ideas notebook. I'd love to see this with rheoscopic fluid, maybe laser planes, and remote control disruptions for things like vortex shedding analysis, to visualize even more more complex currents.
4:49 "I'm injecting water at a rate of about 4ml/m right now and in a 46 mm diameter pipe that equates to only 2.5mm/s" I think you meant 4ml/s instead of minutes. With a flow of 4ml/s in a 46mm pipe it gives a water speed of 2.4mm/s
Filter fouling is the technical term for buildup. It's been awhile since I've even thought about this but I think filtration systems are designed for an optimal fouling range such that your gunk buildup is doing part of the filtration. The initial filtration is worse but your filter has an increased operational period so you are replacing it less often.
It's my understanding that you can get different micron RO membranes just like other filters. For the sake of simplicity I'll use insanely rough numbers lol. You could pre-filter your ink by running it though a 2 micron membrane then dump all the product water(the water that was filtered). This would leave the waste(un filtered) water/ink at a size > 2 micron. Then switch over to the 1 micron filter. This should allow for better filtering. Also don't forget that you can bypass the restrictor on the waste output to flush the membrane from time to time. They make a kit for that pump to do this automatically every time it's turned off but you don't have a conventional setup. I would assume you'd have to have a reservoir aside from the viewing chamber for this to automatically work. I have a lot of experience with RO systems. I built a system that replaced buying water bottles for drinking and have been going down that rabbit hole ever since. It paid for itself in 2 months. Check out how RO boost pumps work. It's kind of like a mechanical ram pump but for RO systems. You can also run RO membranes in series for quite a bit more flow. Waste from filter 1 goes into the inlet of filter 2. Product water of both filters get tied together. There is a salt water aquarium channel that has done a lot of testing with RO and its some pretty neat stuff. It might help you come up with ideas to improve this. I kind of want to build one for my wife to show the kids that come to their STEAM events. Silicone grease on O-rings make a world of difference. You may also want to use a UV RO light with your setup so stuff wont start to grow... I'd put it on the outlet of the viewing reservoir.
That's super cool, and the final result is very very neat! I wonder if you could somehow use just a mix of hot and cold water, and highlight the convection waves with light
A centrifuge comes to mind to solve the filter and pressure issues, though loading and unloading it is kind of a challenge to automate and keep reasonably isolated from the outside world.
heck ya man you should upload a 10 hour version or something on the 2nd channel of just the thing mixing! would be very memorizing, i bet it would collect a shit ton of views over time.
8:27 If you want a simple way to get how the water has changed, take a look at Posy's video "Motion Extraction" After that it would be a pretty simple formula for averaging the "laminer-ness" of a fluid motion
im a scientist working with TFF (tangential flow filtration) and one of the most interesting, practically unknown limitations of most membrane systems is their injection area. simplified, you have two metal plates with a semi-permeable membrane inbetween and you need to recirculate the pre-filtrate and just take away a portion of the filtrate. bc most operations dont care about the actual pressure, esp. in large scale (velocity vs flux), those issues practically never occurred. but when we did pressure sensitive scouting of membrane holders, we found that the flow pattern and turbulence could make up to more than 50% of the allowed pressure. i think some of your comments regarding the interference of the heavy ink-solution might be similar to what we saw. mostly due to increased turbulence and "caking" of the filter surface due to perpendicular flow instead of parallel flow.
damn thats beautiful, the back lighting was inspired, and sizing the shroud correctly makes it look like its glowing from within. Very cool. Maybe you could use the type of tiny fluorescent particles Steve Mould used in some of his visualizing flow videos with a UV light in the back to make the reverse of this effect?
The martial art aikido is all about trying to find stability in the center of conflict. It uses negative pressure to receive the positive pressure of the opponent and the technique always aims to resolve/dissipate the mixture of attacker and defender's energy/posture in a spiraling form. The whole interaction is surprisingly similar to how tornadoes form. I have yet to watch your video but I suspect that a similar thing happens, that opposing forces in a turbulent medium resolve their conflict with spiraling motions and that will eventually layer current after current in a meticulous stream of laminarly flowing particles. At least it would be if it's anything like Aikido. (for the record, I don't see Aikido as mystical, just a martial art that depends on leverage, fluid dynamics and geometry."
In automotive, they use a degas bottle plumbed to the high point in the system to get rid of trapped gasses. Bypasses a tiny volume of the full system back to the inlet
You had me at "better than a lava lamp" I love lava lamps. Edit: Even better idea: Use smoke and a laser array instead of water. Still fluid but you're using one fluid instead of two so you don't have to filter anything.
Totally awesome, and agree - I could hypnotically watch this on an endless loop. It would be cool if you used tiny capillaries at both ends. Inject the ink in one small center-positioned capillary from the left, and water through the others (on the left), and draw the water+ink through capillaries then funnel on the right......
This video is perfect. For a project I have been doing at work, I have been wondering what the mud flow inside our pipe looks like under turbulent, transient, and laminar flow rates (particularly that transient period because towards our max flow rates of 150-200 GPM, the Reynold's Number is between 2000 for laminar and 4000 for turbulent).
![BLACK BAG - Official Trailer [HD] - Only in Theaters March 14](http://i.ytimg.com/vi/Du0Xp8WX_7I/mqdefault.jpg)
Corrections and FAQ in this comment! Official FAQ video will eventually be on the second channel youtube.com/@alphaphoenix2
1) Really cool demo of Kelvin-Helmholtz instability in a much more controlled situation: ruclips.net/video/qgamfo86FQo/видео.html
Thank you so much for making such amazing incredibly high-quality educational videos that are very entertaining. I always learn so much from your videos. THANK YOU!
I am massive
2 words for you: pearlescent pigments. You don't even need to refilter them, they just make flow more evident
1 day ago?
Do you think this could be used as a random number generator ? something like
Random red, green and blue value for back lighting, light intensity and slice on the whole tube, (well a picture of it) and calculate a number from pixel values ... ?
legend says if you say laminar flow in front of the mirror 3 times Destin shows up
Someone is probably driving to his house to wake him up as we speak! :D
(Explodes through door) LAMINAR FLOW. By Reynold’s beard! Who summoned me!? Oh… Hi Brian.
@@smartereveryday 😂😂😂
@@smartereveryday If you build it, Destin will come...and explain it in a thoroughly charming manner. Usually with highspeed cameras.
Side note: Dude... Why are you up so freaking early?! 😵
hahahaha he actually replied
“It’s not hoarding, it’s planning ahead.” 😁👍 To a scientist/engineer all recourse are “Precious”.
No, no. It's hoarding, because it hurts less when you need the thing a few weeks after you finally threw it away after storing for years. That way it's unfortunate timing, rather than a failure of foresight and planning.
At some point in your life, you may find that "stuff I might need someday" has morphed into "stuff I haven't gotten around to throwing out yet".
too right. one day i may need the adaptor to plug a phone i stopped owning 20 years ago into a device i have never owned, so i keep the thing. my wife keeps asking why i have the spare room full of old VCRs and CRT tvs. i say "they may be useful one day"
@@ChrispyNut hoarding isn't just keeping stuff. it implies being a sufferer of diogenes syndrome. techinically banks just 'hoard' stuff.
@@KarldorisLambley For self-diagnosis purposes .....
Pro tip: set your quality to 4K for this video, even if you don't have a 4K screen. Even on 1440p, the RUclips compression algorithm does a real number on these swirls.
I just set up with 40" 4k monitor and new rig. I concur.
EDIT: Even 2K looks brilliant on this new set up.
I told my son it was cheep.
He looked at the specs and said "Probably because it's only 60 HZ." Doh!
I've been using 1080i Samsung TV as a monitor for 20 years. I just couldn't do it any more. So, I'm good. My brain hurt for two weeks after I set this up.
I like a little game for relaxing. WOW! OOOO! AH! YES. OMW.
@@heckell4181 oookay 😂😅 nice!
youtube premium provides a high bitrate option as well.
Nice@@FabiVoltair
@@BNETT21 i'd sooner cease consumption.
Have you tried running the water backward in the reverse osmosis tube? In water treatment plants, they do that to prevent clogging and preserve the throughput. They call this 'backwashing' or 'backflushing', but the don't deal with ink.
With RO you just remove the waste water restrictor and let it flush the surface of the membrane. There is a kit for that pump that would do it automatically for him but i don't thing it would work here because its a closed system.
came to second the back washing. RO shouldn't* need it but it would still totally work....do check the datasheet though. I havent worked in water filtration in years
A pressure triggered automatic backwash would be perfect. Adding a higher pressure shut off in case it eventually doesn't clear it might also be a good idea for the pumps health.
I think the solution is a different type of filter.
@@gabrielapetrie - A different type of ink/pigment would also work. There is no need for really tiny particles.
19:11 I love the reference to This Old Tony.
I knew that scene setup felt familiar but off (for this channel). Now I know why 🌟
I chuckled unnaturally long at that lol.
Different types of flow?! Countdown til Destin shows up! 🎉🎉🎉
I was just thinking that him and Derek should show up :))
DESTIN!!!! You are being summoned!
He does show up at 8:46 lol
@@lebenitza5778 me too. btw im with derek, turbulent wins.
@@qwfp lol nice catch!!
There are two important phrases that will cover most of your metal working projects:
1) Beat to fit, paint to match.
2) Grinder and paint make me the welder I ain't.
I love how Destin's on a monitor in the background when you're talking about just how laminar it is. 8:45
Destin heard him 😂
The obligatory ToT reference now that you have a welder was perfect
There are microfluidic devices called spiral separators. These are usually use separate different cells based on density. Probably not useful for sorting ink, but might be worth a try for fluorescent polystyrene particles?
We should all be so lucky as to have some mildly diluted ink sitting around. You never know.
The only thing more hypnotic than that tube structure is your lovely explanation
What you want is ultrasonic separation.
This is used in grand scale industrial applications.
Basically using standing waves to "catch" particles.
But be warned, that's a rabbit hole on it's own.
Ultrasonic separation causes vibrations, vibrations are sound, lots of vibration = lots of sound = loud = not calming. Am I right?
@@Axodus nope you're not.
Controlled sound waves are far from uncontrolled vibrations.
Also it's meant as a separation method below the tube.
Unfortunately I was unable to find a public video on how it works and I'm not allowed to share the footage I have since it's under NDA and I really don't want to sour the relations with them since they are a valuable supplier.
@@DerSolinski so it's quiet?
@@Axodus it's ultrasound nothing a average human should perceive.
There are of course individuals able to notice it. And kids / young adults of course.
One of the most valuable channels on RUclips
17:55 The problem you had with the endcaps leaking might not actually be solved. Waterproofing 3d prints is notoriously hard because of the pores they have between the layers. This can be helped by extra perimeters and higher temperatures like you did, or smoothing the part by dissolving the surface with isopropyl alcohol vapors. However, most 3D printable plastics (like PLA and PETG which you used) are hydroscopic, which means that the plastic itself will absorb water. At very high pressure differences, like your 100 psi chamber, the water will still be forced through the plastic. A lot of submersibles with 3d printed parts have the same problem. You can try high-impact polystyrene (HIPS), which is not very hydroscopic.
I am a bad person - the word is hyGroscopic.
ABS would work, and is extremely easy to vapour smooth using acetone. It is often used for pressurised water pipes.
The trick to printing a water tight end cap with petg is to use concentric solid infill with chamfers on the bottom. Because of the chamfers, each successive layer of concentric infill is offset from the one below it ensuring there's no straightforward path for the water through the print. You can also separate the print into an outer shell printed in vase mode for watertightness, and an internal part with the more complex geometry. I print canister filters for aquaculture this way. You can also thin pvc glue with acetone and use it as a water proof coating in a pinch.
There are multiple things to consider with hygroscopic materials, in particular "how much" water it can absorb, and "how hard" it absorb water.
PETG for example does not absorb a lot of water (about 0.2% from what I've found) but it absorb it quickly, that's why a PETG spool is affected quicker with ambiant moisture than PLA. On the other hand PLA does not absorb water quickly but it can absorb a lot.
And another thing, hygroscopic and water resistant are two different properties. Hygroscopic is about water absorption and water resistant is about degradation in water. PETG is water resistant (PET, PETE and PETG are used in plastic bottles) while PLA is not water resistant.
I don't think the chamber itself is pressurized, just the filtration stage.
@@olejrgenbrnner4708Exactly! The high pressure is between the pump and the filter, not in the tube itself.
Cool project!
I also liked the "supposedly working" quip: that's the hallmark of fascinating physics: you may end up in a phase when you do nothing other than sit mesmerized and stare at whatever you have built.
The story here in Göttingen goes that Max von Laue sat for half an hour just staring right at an x-ray tube with a screen in front of it when first being shown his crystallographic patterns.
That thing looks insane. This and Steve Mold's mica setup are showing really cool fluid dynamics.
You having this many subscribers kinda give me hope regarding humanity.
Because your content is pure science, wonder, understanding...
babe drop everything AlphaPhoenix percolates
It seems like he's precipitating a video as well!
Get ready for 100 Chinese knockoffs to flood amazon with this
"flood"? I see what you did there.
I sure hope so
I’ll take ten
i doubt. you can't make these cheaply and reliably apparently. unless they use something that's less hard than india ink
@@crackedemerald4930They'll skip the reliability part.
I know everything in this video from fluid mechanics class but getting to watch it explicitly in a video is why I love this channel so much
Wow this is really amazing, I think the fascination of the patterns it makes is the same fascination we have with fire, the patterns resemble fire. Awesome stuff bro!!
Reversing water flow through filters is used to clean massive aquarium filters.
Also have you considered using nasty chemicals like a lava lamp?
And nice work!
fun fact: lava lamps are generally just a dyed water and a dyed wax
What nasty chems are in them?
@@TheAechBomb Is it? I was under the impression from technology connections that it was wax and brake cleaner.
@@sshh7510 I'm pretty sure he just used water and parrafin wax, plus a little salt to get the right effect
@@sshh7510I believe he said they don’t use this anymore due to health concerns, but that is what was used at one point
He says lava lamp, but the music tells me I'm in orbit...
Crazy how mesmerizing it actually is though
That's the male 'watching fire' gene kicking in
A fluid will always have laminar flow when is being sucked. Versa, it will always exhibit turbulent flow when is being pushed ( under pressure ). These 2 behaviors are governed by the local dynamic impedance. When a fluid is sucked, the suction effect creates zones of under-pressure which allow the fluid to start organizing (moving) itself through the path of least resistance/impedance and such, given enough time creates laminar though the engine fluid can have a curl gradient.
We absolutely need a This Old Tony response video talking about physics.
This has the same mesmerizing details as sometimes looking at the sky and the cloud details. Love it.
The patterns at the end of the pipe really remind me of surfaces of gas planets. I would be really cool to have the same thing as two spheres where the liquid moves between a inner spinning and an outer static sphere
Such a beautiful device! Combining art and science is just the best.
Forget the filter! Set up a complex centrifuge cascade to separate the ink and water by their mass difference alone. As a bonus you can enrich uranium too
6:46 thats why fire departments moved to 4” hydrant hookups instead of 2 2.5” hoses on the same hydrant
whenever you upload, not only is it incredibly interesting and educating, but the experiments, demonstrations and contraptions you come up with are so unique. you have a special mind, thanks for sharing that with us.
Pretty cool. BTW, gear pumps are quite quiet. Especially if driven by servo and magnetically coupled (bit overkill, but that was setup we used for pumping printer ink)
I'm so glad to see this channel starting to grow exponentially. Your content is pure gold, and just seems to keep getting better.
0:21 Wow I was way caught off guard by the KSP OST
oh yeaaaa that's what it was
It's from Kevin Macleod, so it's used in a lot of things because it is public domain.
KSP!!! I was just playing it, I rescued a kerbal from orbit and then I designed a moon lander. I never really finished the stock career mode so I'm gonna finish that first before fully jumping into career mods like interstellar extended
Yay other a alphaphoenix vid!
Thanks for making my day.
Also yes prepared for the onslaught of RUclips copier vids and mass-produced knockoffs on Wish and alibaba
The introduction of the welder has such a This Old Tony vibe
Maybe try removing the flow restriction after the ink at regular intervals to wash away the ink fouling from your filter. Backflowing some water through the filter may also help clear the fouling, though I'm not sure if your filter can handle that.
The whole thought process and discovery journey is awesome! Cool project and very impressive!
Great job! This is personally interesting as my 3 year old grandson ask his parents what turbulence is which they passed on to me. So I made a little movie for him using a coffee carafe and food coloring. I spun up the water and let it settle and become laminar, then added a couple of drops of food coloring. Due to some remaining shear it formed cylinders that were remarkably stable. Introducing a small diameter cylinder provided great turbulence on the backside. My grandson got through at least half of it before he got bored.
Your way of mixing science and engineering is infectious. Wacky ideas and none of them boring. Many of them people can do at home if they really wanted to.
Not even 30 seconds in and he's hacking my brain with ksp music.
As a potential video, could you find out/explain how a storm glass works and if there are any other ways the same mechanism can be used.
Could this be done with a solution of liquid crystal display juice? 😮
Oh my god and then you run a varying voltage behind it 😮
@@AlphaPhoenixChannelThere's a way! I'm brainstorming over here, but also holding my breath.
I can see that watching this after a stressful day can have soothing effects.
If you coated the inside of the pipe wifh a superhydrophobic substance, you would get different flow characteristics. Might be worth a try!
Really cool project! This video deserves way more views!
I was thinking about how to remove the particulate from the water more efficiently. Some kind of prefilter would probably be very useful, maybe a cyclonic filter? Or perhaps with a different ink, you could use biphasic solvent separation?
Jupiter and Saturn in a pipe.
Here is an idea. Use a higher viscosity fluid. Second, use a magnetic ink and use a magnet to re-separate them, no filter. PS brilliant and beautiful work 🥰
19:10 Is that a This old Tony reference?
This is awesome! What about charcoal dust and a vortex filter? With a fast vortex the heavier material will go to the center
Or lamp black
This makes me think of the big bang. Water at the far end is the stars speeding up.
Except water at the far end slows down lol
You have an uncanny knack for answering questions I didn't know how to ask
What a beautiful build, I missed the upload, but look forward to your next part!
I absolutely love "mad science" channels like this one. Maybe one of my favorite things about the modern internet. Thanks!
It wouldn't have any science lesson around filtration, but you could try mica powder instead of ink. It'll never fully diffuse so that you can continue to see the flow patterns by just pumping it through the circuit.
At first I was wondering why you didn't go for the classic mica in water approach, but by the end I understood it wasn't about the turbulent and laminar flow as much as it was about mixing and diffusion in total.
My favorite!!! when thermodynamics meet fluid dynamics! So exciting!
Thank you for uploading. Last night I was craving this kind of tinkering engineering video. Thanks for coming through!
I work with heating networks (which is mostly just a bunch of water flowing through pipes) and there we also think of it as analogous to electrical circuits a lot! Basically the water flow throughout the network follows Kirchhoffs laws, and the "resistance" of a pipe is modeled as being dependent on the flow speed (because fast moving water will become more turbulent and so encounter more friction). It's a pretty effective analogy!
Enjoyed learning about this project! In my automotive electrical class, my instructor compared voltage to pressure in a water hose. Lots of similarities between hydraulic and electronic circuits as well. Understanding one helps understand the other- you're not weird for thinking that way!
Sounds like you need to high pass filter some of the audio, I'm getting a good bit of static on mobile and desktop for this video. Maybe a good spot for reference is 4:28. Great video though!
I am so ready for the reverse osmosis video. I fell down the rabbit hole when I put one in for my ice maker, but I'm sure you'll go much deeper with your video.
Makes me think of the overall flow of a human life. Thank you.
It's a very cool project for sure! I think the filters clogging is normal, on saltwater desalination they reverse flush the filters at certain times to unclog the pores and have a secondary pressurized loop for this. You could put in a second loop that does a reverse flush with clean water every so often. Of coure the ink could bind to the filter relatively permanentely then you would need different material for the filter (I mean you only need the ink not to go through, right, does not have to filter down to water atoms), but putting a reverse-flush on a timer could extend the life of the system at least a bit.
To make the filters last longer instead of ink use a long polymer of plastic with dark colour. Think tiny micro plastic beads that will be as fine as ink but easily stopped through a filter/
I watched Destin’s ~4-hour video where he did fun stuff with ink and water. This is a surprisingly well-served art form on RUclips.
The reverse osmosis filter require rinsing flow on the outside of the membrane to keep it clean. Even with just tap water it would plug if it wasn't dumping water down the drain. Then you are restrcting the output of side, worsening the problem. I would consider recirculating the pumped mixture to keep the flow moving on the outside the membrane
you are literally my favorite youtuber
The part I find most interesting about this is the choice of what to mix with the water. I'm curious as to where the sweet spot for particle size is. That filter is wild.
The water and ink might have impurities like minerals that clog up the filter?
Danke!
Doesnt it not make sense to try to plot a 2d version of laminar flow in a 3d cylindrical space?
The center of the flow could be one way while the outter edge of that same cross section could be moving in the opposite direction.
So knowing that wouldnt you not attempt to track laminar flow that way, or switch to a model that uses a flatter, more rectangluar shape than a tube to better reflect a 2d splice?
Or if possible track the flow at different depths away from the camera?
Thanks!
I saw Matt Godbolt in the wild! Thanks for Compiler Explorer.
@@ehhhhhhhhhh a wild Matt Godbolt appears! (Thanks for the kind words!)
Thanks
I think it's cool but as a blacklight artist I have to suggest using fluorescent inks and mica powder to give the contrast. If you used fluorescent blue, red and green inks you would get interesting colors as mixing fluorescent colors is additive instead of subtractive so it would glow white by the end
That seems like a great idea
Can the colors be separated and reused though?
Aerospace engineers use this technique all the time in water and wind tunnels all the time actually. It's great for flow visualization
I feel like in another universe this is the love child between veratasium and smarter every day
If you did a larger scale vertical tube, you may be able to use it to separate the ink in situ, and just use a tiny pump on a duty cycle to pump the settled ink from the bottom to the top. Also maybe if you warmed the ink up it might not fall right away and would do cool convection things
This is like the fractionated elutriation filtered, color coded particle size, patterned laminar flow layer disruption display, from my impossible to implement ideas notebook. I'd love to see this with rheoscopic fluid, maybe laser planes, and remote control disruptions for things like vortex shedding analysis, to visualize even more more complex currents.
4:49 "I'm injecting water at a rate of about 4ml/m right now and in a 46 mm
diameter pipe that equates to only 2.5mm/s" I think you meant 4ml/s instead of minutes. With a flow of 4ml/s in a 46mm pipe it gives a water speed of 2.4mm/s
Now I gotta go redo math…
I was assuming the 100gpd filter
Filter fouling is the technical term for buildup. It's been awhile since I've even thought about this but I think filtration systems are designed for an optimal fouling range such that your gunk buildup is doing part of the filtration. The initial filtration is worse but your filter has an increased operational period so you are replacing it less often.
It's my understanding that you can get different micron RO membranes just like other filters. For the sake of simplicity I'll use insanely rough numbers lol. You could pre-filter your ink by running it though a 2 micron membrane then dump all the product water(the water that was filtered). This would leave the waste(un filtered) water/ink at a size > 2 micron. Then switch over to the 1 micron filter. This should allow for better filtering.
Also don't forget that you can bypass the restrictor on the waste output to flush the membrane from time to time. They make a kit for that pump to do this automatically every time it's turned off but you don't have a conventional setup. I would assume you'd have to have a reservoir aside from the viewing chamber for this to automatically work.
I have a lot of experience with RO systems. I built a system that replaced buying water bottles for drinking and have been going down that rabbit hole ever since. It paid for itself in 2 months. Check out how RO boost pumps work. It's kind of like a mechanical ram pump but for RO systems.
You can also run RO membranes in series for quite a bit more flow. Waste from filter 1 goes into the inlet of filter 2. Product water of both filters get tied together. There is a salt water aquarium channel that has done a lot of testing with RO and its some pretty neat stuff. It might help you come up with ideas to improve this. I kind of want to build one for my wife to show the kids that come to their STEAM events.
Silicone grease on O-rings make a world of difference. You may also want to use a UV RO light with your setup so stuff wont start to grow... I'd put it on the outlet of the viewing reservoir.
Brian, there's an old adage I think you'll appreciate now that you have that TIG setup: "A grinder and paint, make you the welder you ain't"
That's super cool, and the final result is very very neat!
I wonder if you could somehow use just a mix of hot and cold water, and highlight the convection waves with light
knocked it out of the park, as usual
A centrifuge comes to mind to solve the filter and pressure issues, though loading and unloading it is kind of a challenge to automate and keep reasonably isolated from the outside world.
heck ya man you should upload a 10 hour version or something on the 2nd channel of just the thing mixing! would be very memorizing, i bet it would collect a shit ton of views over time.
8:27 If you want a simple way to get how the water has changed, take a look at Posy's video "Motion Extraction" After that it would be a pretty simple formula for averaging the "laminer-ness" of a fluid motion
im a scientist working with TFF (tangential flow filtration) and one of the most interesting, practically unknown limitations of most membrane systems is their injection area.
simplified, you have two metal plates with a semi-permeable membrane inbetween and you need to recirculate the pre-filtrate and just take away a portion of the filtrate.
bc most operations dont care about the actual pressure, esp. in large scale (velocity vs flux), those issues practically never occurred. but when we did pressure sensitive scouting of membrane holders, we found that the flow pattern and turbulence could make up to more than 50% of the allowed pressure. i think some of your comments regarding the interference of the heavy ink-solution might be similar to what we saw. mostly due to increased turbulence and "caking" of the filter surface due to perpendicular flow instead of parallel flow.
Once again a very cool video (and idea in general)! Beautiful visuals, clever mechanics and interesting physics - what more could you want?
damn thats beautiful, the back lighting was inspired, and sizing the shroud correctly makes it look like its glowing from within. Very cool. Maybe you could use the type of tiny fluorescent particles Steve Mould used in some of his visualizing flow videos with a UV light in the back to make the reverse of this effect?
The martial art aikido is all about trying to find stability in the center of conflict. It uses negative pressure to receive the positive pressure of the opponent and the technique always aims to resolve/dissipate the mixture of attacker and defender's energy/posture in a spiraling form. The whole interaction is surprisingly similar to how tornadoes form.
I have yet to watch your video but I suspect that a similar thing happens, that opposing forces in a turbulent medium resolve their conflict with spiraling motions and that will eventually layer current after current in a meticulous stream of laminarly flowing particles. At least it would be if it's anything like Aikido.
(for the record, I don't see Aikido as mystical, just a martial art that depends on leverage, fluid dynamics and geometry."
I had a very similar idea a couple weeks ago but using mica in solution instead! Great work as always! Cheers from Texas!
In automotive, they use a degas bottle plumbed to the high point in the system to get rid of trapped gasses. Bypasses a tiny volume of the full system back to the inlet
You had me at "better than a lava lamp" I love lava lamps.
Edit: Even better idea: Use smoke and a laser array instead of water. Still fluid but you're using one fluid instead of two so you don't have to filter anything.
Totally awesome, and agree - I could hypnotically watch this on an endless loop.
It would be cool if you used tiny capillaries at both ends. Inject the ink in one small center-positioned capillary from the left, and water through the others (on the left), and draw the water+ink through capillaries then funnel on the right......
This video is perfect. For a project I have been doing at work, I have been wondering what the mud flow inside our pipe looks like under turbulent, transient, and laminar flow rates (particularly that transient period because towards our max flow rates of 150-200 GPM, the Reynold's Number is between 2000 for laminar and 4000 for turbulent).