Turbulent Flow is MORE Awesome Than Laminar Flow
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- čas přidán 10. 06. 2020
- Everyone loves laminar flow but turbulent flow is the real MVP.
A portion of this video was sponsored by Cottonelle. Purchase Cottonelle Flushable Wipes and try them for yourself: bit.ly/2WJm9Hq
Special thanks to:
Prof. Beverley McKeon and team www.mckeon.caltech.edu
Destin from Smarter Every Day / smartereveryday
Nicole Sharp from FYFD ve42.co/fyfd
Pavol Dobryakov turbulent simulations: paveldogreat.github.io/WebGL-...
I got into turbulent flow via chaos. The transition to turbulence sometimes involves a period doubling. Turbulence itself is chaotic motion, it is unpredictable and sensitively dependent on initial conditions. What surprised me is all the ways turbulent flow is useful to us. It is diffusive, meaning it causes mixing. This is useful in jet engines or rocket nozzles (which Destin studies) and is important to achieve in microfluidic devices, which are so small that turbulent flow is actually difficult to achieve. Turbulent flow can energize a boundary layer, which is important to maintain flow attachment over a wing, maintaining lift and delaying stall. Similarly a turbulent boundary layer over a golf ball reduces pressure drag allowing golf balls to fly further. This is the reason for the dimples on golf balls. Flow transitioning to turbulence in the wake of a bluff body can create periodic vortex shedding. This beautiful phenomenon can be seen in the von Kàrmàn vortex street in clouds viewed from space. Turbulence is everywhere, in the air currents in a room, in your aorta, in the breaths you exhale, in oil pipelines and water pipes, in the flow over cars and ships and planes. Animals have evolved for it (like dead fish swimming up stream) and we have engineered our environment, our planes and golf balls for it. Laminar flow may be nice to look at (which is why we use it in decorative fountains) but turbulent flow does the real lifting.
Animations by:
Jonny Hyman (Sun, Jupiter, Reynolds, airfoil, Earth time-lapse)
Research and writing:
AJ Fillo and Derek Muller. AJ also created the wind tunnel golf ball shots
Filmed by:
Daniel Bydlowski and Derek Muller
Additional footage:
Images of Jupiter courtesy of NASA
Turbulence in air currents by the Physics Girl, Dan Walsh, and Grant Sanderson • How to Make a SQUARE V...
• Why 5/3 is a fundament...
Music:
illBird "Shaffuru" • [SYNTH HOP] illBird - ...
From EpidemicSound epidemicsound.com "Seaweed" "Colorful Animation 4"
Kevin MacLeod incompetech.com "Sneaky Adventure"
LAMINAR FLOW IS BETTER. Obviously the Laminar Boundary Layer section was the best part of the video. (I jest.) In all seriousness though I thought you did an amazing job with this content Derek. Discussing the transition to turbulence is very difficult and you did a masterful job of it here. Animating Reynold’s experiment on the page was masterful. Your point that laminar flow must be small was very interesting, and when I saw the images from space I had a fun time thinking about what parts were laminar and what parts were turbulent. I’ll put a link to this video on the laminar flow video. All these nice things being said....I have something up my sleeve!
Haha can't wait!
@@veritasium haha me too
I saw the title of this video and immediately knew Destin would make an appearance.
Was waiting for you😂lol . By the way both of you are a GREAT Inspiration for me. Keep inspiring♥️
I was just about to post "Don't let Smarter Everyday see this" and here you are 😂. EDIT: posted this before I watch the video, Destin is in the video too!
"laminar flow is slow, superficial. It's a toy. That's why its most notable use is on decorative fountains"
Most scientific diss track on CZcams
*use
dissipative
I wonder if he's ever seen the systems that lubricate industrial band saws and other things like metal lathes. Most of what I've seen uses laminar flow because, what's the point of spraying a shower of oil all over everything when you need lots in a small spot?
@@moonhowler667 because bukkake
You should look at Dr Sabine Hosssenfelder's (Physicist) PMV. There are some literal diss tracks there. She makes fun about people send her their "Theory of Everything" proposals for her to review. Particularly, she pokes fun at one of those "intelectual dark web" guys.
Took a class just called “Turbulence” during my aerospace M.S. and I understood just as much about turbulent flow at the end of the course as at the beginning.
me too
I would have agreed, if he'd covered the inertial subrange. :(
Sooo you wasted time and money... when a 20 min video would have been 50 time better... hmmm seems like college is a joke
@@thethinkingmansgame5050 the problem isn't college, we just don't know much about turbulent flow yet. there's a million dollar prize related to that
@@thethinkingmansgame5050 if you think that college is a joke go ahead and do a multi million dollar fluid simulation for an aviation company without specialized knowledge. Good luck sir.
As a professional pilot, I can say this is by far the best explanation of these effects I have ever seen. I wish I had this when I was first learning about this. Would have made the concepts so much easier to understand! All new pilots should watch this video, especially the parts on Rynolds number!
CFI here, definitely will be showing this video to all students.
CPL here, agreed
That’s what I thought. ATPL Student learning for my 13 exams. It’s interesting
@@7Fatguy More that this does a much better job explaining a complex subject that often takes a good long while for student pilots to understand
Better than explaining laminar and turbulent flow differences using Reynolds number?
When the two smartest kids in class have different answers:
Kid pops up from under the desk. "Hey Vsauce, Michael here."
@@tuckercates409 MICHEAL THE 3RD EXCEPTION KID
Tucker Cates Nah, he’s the teacher.
@@tuckercates409 LOL I visualized that and I died
deadass yo im rollin at this
Engineer throws dead fish in the water.
Engineer: "Behold, Necromancy!"
Any other Chem Engineers here? Bomb squad?
Some tazor loving crackhead: "Be free!"
666 upvotes, better not mess with perfection.
@@Megalomaniakaal cringe
Finally got to that portion of the video. I want to know what mad scientist thought up that experiment.
As a plumber, this is fantastic. I've tried explaining these concepts to people and it is hard for them to grasp without visual representations of what the concepts are. In plumbing, turbulence is the enemy. Everyone thinks more is better and IT IS NOT.
imo, pipes are mainly designed to induce laminar flow, so it will suck if suddenly the flow still becomes turbulence inside.
This is such a friendly and fun conversation between two people who are intellectually curious! Thank you for everything both of you guys! A great example
I’m pretty sure this is the closest thing to a disstrack we’ll see from these guys
Delta927 Canadien-français East Coast, West Coast vibes.
@Isabella Ngo "Hey it's Scarce here and today's story is HUGE!"
My thoughts exactly 😂
Lol I'm dead 💀🤣🤣
Wow🤣🤣🤣🤣🤣
I was NOT surprised to see Destin at the start of this as my first thought when I saw the title of this video in the notification email was "uh-oh, shots fired, Destin's not going to stand for this".
They were getting along so well. Now the eternal feud starts.
This is the kind of CZcams beef I wanna see
haha yes, that's why I headed straight for the comment section before even watching the video :D
I literally came here to say "shots fired!" :D
I thought the same!!
I love the play that you and destin have. you guys are becoming cornerstones of science and yet your friendship makes it so friendly and kind.
This is the one of the best science/info vids I have seen on CZcams. I’m a weather forecaster and this does such a great job helping visualize what is going on in 3d space
The first thing i thought when i saw this title is "You just started a war with Destin".😀😀😀
Exactly what I was thinking. Lol
My toes are in the water and I’m standing On Dustin’s side
I agree with Destin. Laminar flow is the rare case of physics creating order. Chaos is beautiful but common. There are very few things I enjoy more than seeing water flow over a rock in a stream to create laminar flow
Yesss
Correct 😁
2020 has already been a turbulent year, but I wasn't expecting WW3 to erupt between Smarter Every Day and Veritasium
And just like that, Canada and the US became enemies
enough for this year........we cant handle more now
Some prefer it turbulent ;)
TeamVeritasium / TeamCanada all the way 🤘🏼😛
Well Derek is from Australia, so I guess US vs Emus!
Guess who'd win?
Nailed it! This was a difficult topic when I was in school, but you made it seem easy. My son who is in grade school really got into it. Keep it up!
Amazing how simply and understandable you´ve explained this, my teacher on CFD at the university could learn a lot from you!
Here before Veritasium Vs Smarter Everyday diss tracks.
to the top u go
Who the hell is Bob and why you wanna kiss him
Edit: Continue this guys, you're embarrassing me
Rick don't smash that mini universe again
can we get this to 1000 likes in one day?
Epic Rap Battles of History
turbulent flow: *exists*
fish swimming upstream: cHaOs Is A lAdDeR
ngl chaos is a ladder is my new life moto
omfg lollllllllllllll
Jevil: **proceeds to climb up a waterfall**
also Jevil: *Kris, why are you looking at me like that?*
virgin turbulent flow: nooo you can’t harness my chaos for your evolutionary fitness.
Chad Fish: haha climb ladder
@@Zedryx69 "I can do anything! Chaos! Chaos!"
I have been confused about laminar, turbulent flows and boundary layers. Thank you very much for making a video with these amazing animations and explaining these crucial concepts in an easy-to-understand manner!!
i love the banter between you and smarter everyday. you guys are just awesome, and are the best thing to hit youtube!
Friendship ended with Laminar flow, now turbulent flow is my best Friend
Saaaaaaaaaame
don't expect to be as stable
Noooooooooooooo
Them ones when the friendship's Reynolds number increases
Karma will get you.
"If you put a dead fish in the wake of an object, it'll actually swim upstream" - That's clearly a software bug.
Sounds like you've been dwelling in the world of simulation theory.
The bugs are everywhere.
It's called a slipstream if I'm not mistaken, it's common in racing
...will be patched in the next software version
I heard that update 2020.8 should fix that.
Wow, wait until the guys on r/outside hear about it... the devs need to do something
I didnt knew the term of it. But always loved the turbulence flow. Started loving it when i paint and wash my brush my in the water. Colors mixed in water in a beautiful way.
This is actually what it means to take your sponsorship to a whole new level 💯💪🏼
"...But what if we put a dead fish in it?"
- Science
When he said dead fish I thought "Why a dead fish and who thought that would be a good idea?"
I liked the dead fish idea. It demonstrates that the structure of the fish is such that minimal energy is required for movement,
My view of salmon as strong and dedicated has been sadly deflated.
Lets see how the fish figured out the turbulent flow formula in evolution lol.
I bet this phenomenon was discovered when a scientist threw his dead finsh into the toilet .
15:13
Fish: *dies*
Turbulent Flow: Dead or Alive, you're coming with me
My thoughts exactly
RoboFlow!
Fish: dies
Why did I laugh so hard at this
you are coming to brazil
Incredible the use of science with the sponsor, explaining scientifically how they're different, and what benefits they can have, just awesome, i'mma buy some just for the sake of experimentation.
What a video!
Hats off
You have taken very good examples and took really much efforts to portray it
Hats off
I had a meteorology professor that had a saying when talking about the atmosphere:
"Big swirls, have smaller swirls, which feed on their velocity.
Smaller swirls have lesser swirls, and so on to viscosity."
This is quote from Lewis Fry Richardson
Kolmogorov.
Imagine two guys arguing over the internet about some flowy water.
And millions of people interested in that.
When peeing laminar flow is better than turbulent flow.
@@scotthenrie5674 I dont know if this is true but i read somewhere that pee that comes out of your wang is rotating around like a corkscrew before it leaves.
BoomBrush but then it’s turbulent right ? Or wait, the path is predictable so it’s laminar?
Better than watching more looters and corporations ads trying to convince me they care about things.
My favorite was always the transition, where it's not laminar anymore but it's still mostly large scale structures. It just looks cool.
BOTH OF YOU GUYS ARE GREAT...... THE INFO YOU PROVIDE IS AWESOME
"Turbulent flow is better than laminar flow"
Destin: they be some fighting words.
I’ll bet the farm on destin...
Child: "Is that fish alive?"
Parent: "Yes, you can see it swimming upstream"
Me: "Well actually..."
WHAT.
14:40
Oh shoot
"Why is the fish flopping so much?"
you mean the fish at 14:40 is dead?
For your bit on the end about the flushable wipes. Our local water council urban utilities had to do a marketing campaign against flushable wipes cause they still don’t break down quick enough compared with toilet paper and were causing problems in the main sewerage system.
but is that specific to cottonelle? i'm sure there's different designs
@@snark894 yeah I dunno
eat more pork
This really helped clear things up for my Fluid Mechancis course.
I saw the title and instantly thought, “Smarter Every Day is gonna be mad.” XD
Yeah me too
Not at all. I agree that turbulence is awesome.
Lmao
@@smartereveryday OMG MY FAVORITE CZcamsR
@@smartereveryday I WAS INSPIRED BY YOU CAN YOU SHOUT ME OUT IN YOUR NEXT VIDEO I WOULD BE VERY HAPPY
As an aerospace engineer I'm so glad this video was made. I love Destin's video on laminar flow but I kept thinking "but but but the flow is so much easier to separate if the flow is laminar"
But also, you can't just mention that a dead fish can swim upstream in a sentence and move on! That deserves it's own video! How does something move upstream without it expending energy! How does an object move forwards when you blow on it! The only explanation I have is there is lower pressure closer to where the vortex is shed than far downstream, so the fish is being "blown" upstream by the pressure difference...
I would excpect that the energy was transfered to the "spring" which is backbone and muscles, but Im only guessing. Need to see a video with explanation!
Sounds about right. There would be vortexes right behind the fish that curl around and hit the fish?
Edit: and there may be vortexes that form around the scales and fins of the fish as well
There's a pretty famous experiment in which the drag on an object behind another one gets a negative drag and is pushed forward instead
SAME!! I'm doing my PhD in Mathematical biofluids, and fish swimming upstream without expending energy is freaking awesome!
Oooh that fish swimming upstream is a very interesting topic for a video! Comment this on Destin's video too. Maybe in a few months he'll post a video about it lol
This just made me appreciate Laminar flow even more! I'm looking forward to what you've got up your sleeve, Destin 😄
This man literally answered my entire aerodynamics test I took a week ago. Tremendously useful video, would've loved to see it while studying.
hi dear
Derek: Turbulence is amazing
Destin: So you have chosen death
The battle of the two Ds
OMAE WA MOU SHINDEIRU
@@RageFireMaster Nani?
Veritasium: "Turbulent flow is cooler than laminar flow"
SmarterEveryday:"So you have chosen death"
Laminar flow has to be small. Those are fighting words!
@@codediporpal Bro I'm waiting for the Geek off video youtube beef between each flow. I hope they do more to do opposites to fill in each others videos. Because we know they could go into it another 30mins but it's a lot of work they already put in. They get real professionals. Worth the wait.
@codediporpal Turbulence has to be big.
My exact thoughts lmao
Shots Fired!!!!!! OUR Battle WILL B legendary
I use these principles in my body work. Acupressure points (vertices) in meridians and collaterals express exactly like this, to my hands. Essentially, I transmute turbulent flow into laminar flow. Thank you for expanding my perspective. 🤗
Thank you Veritasium! You made a huge inspiration for me in my musical Composition methodology... I'm writing a piece based on this (not inspired by it but literally based on fluid mechanics and states of matter).
I'll keep you posted about it ;)
Keep up the good job!
waiting : )
@@rishyanth-zh9bv Thank you. subscribe to my channel, I will post it there. :)
14:39
"So how are we going to harvest the energy of these vortices"
"Put a dead fish in there"
"What?"
" *PUT A DEAD FISH IN IT* "
You miss understand the madness of an engineers. This is normal
"Puts a Dead Rat in It"
@@mayrunesdaygone8094 Lobster vs Cow aerodynamics
Monty python predicted this when they intimated one could cut down the mightiest tree in the forest with a herring. HEED THE PROPHECY!
Geryz , it would be cool that a boat put in water with specific vortices could flow upstream. This is an interesting prospect. The boat being the dead fish.
the dead fish swinmming was actually impressive
how he do that
@@omgitxalex3914 My best guess is that the rock creates a vortex that locks it in a general position while also creating oscilations in the stream with which the fish end up ressonating with. The oscillations must be high frequency enough to propel it forward.
It is like the movement of a flag mixed with the behavior of a sail powering a boat against the wind. It uses the energy available in the water flow.
This probably evolved so these fish can rest behind rocks when climbing rivers during the mate season.
Once I saw a guy using genetic algoritms and fluid dynamics simulation to find optimal shapes of wind mills so it would be super efficient.
Truely amazing.
@@Alkis05 But... It's dead.
@@Quifuh That is what makes it impressive, isn't it. That is why I made the reference to sails and flags, which are not alive either. Flags have movement created by air flow, and sails can propel an object against wind flow.
I'm actually thinking of showing this to a professor of mine who studies aquatic robots. There are labs here that research both the hydrodynamics and the electronic/automation part of it in my campus.
@@Alkis05 That's interesting. Do show the video to your professor, he most likely will enjoy it.
This video could not arrive at a better timing. I was studying this in college this vid helps alot
Antes de ver el video aún tenía ciertas dificultades para poder distinguirlos, y sobretodo visualizar claramente como era cada uno. Considero que el haber colocado imágenes sobre como es realmente, ayuda muchísimo a entenderlo mejor
This title is a direct attack on Destin.
I'm just waiting for the payback
I think you mean the diss track.
Internet drama! Internet drama! Internet drama! Internet drama!
I love both channels and I feel like this is an intentional poke at Destin
Edit: I said this before watching the video and immediately bam Destin
My first thought exactly. 😂
Hahaha
@@OHYS I bet their diss track will have some sick flow .... to its lyrics ;)
As soon as I saw the title, I was like, "Oh man, he's picking a fight with Destin. This is gonna be good"
I study aerospace engineering and this helped me better understand my entire fluid dynamics course. Thanks man👍
You're father wrote Hitler's book
3:04 😢 i miss her videos.. hope she get's well soon
Turbulent flow reminds me of Van Gogh's painting "Starry Night" and his artwork in general
cool you mention that,
read somewhere that researchers found those flow patterns in the painting to have shared turbulent properties to the flows observed in nebulae and star nurseries
Interestingly I was reading to see if there was a connection between the golden ratio and turbulent flow and I saw there was a connection between the painting and turbulent flow
Yea I saw a ted video that talked about how insane it was that he drew turbulent flow so accurately all while he was cooped up in a mental hospital and people didn’t even really know about turbulence as a natural phenomenon
@@gautamnest149 The flow patterns also satisfy the current visualization of the turbulent flow,considering it was painted long time ago. And Sir da vinci also painted a pattern(about 500 years ago) that satisfied the modern ideas about turbulence.
Damn that’s the first thought that came to my mind when I saw the turbulent flow example
Fun fact: during the South African wold cup, FIFA “nerfed” their soccer ball by making it smoother so the players couldn’t have TOO much control over the predicted flight path of the ball, much to the frustration of the players.
@@cap5856 There was some controversy with the ball, called Jabulani: phys.org/news/2010-06-jabulani-ball-straight-scientists.html
@@cap5856 www.google.com/search?q=south+africa+world+cup+ball+controversy&rlz=1C5CHFA_enUS888US896&oq=south+africa+world+cup+ball+&aqs=chrome.2.69i57j0l7.10375j0j7&sourceid=chrome&ie=UTF-8
@@cap5856 "Brazilian striker Luís Fabiano called the ball "supernatural", as it unpredictably changed direction when traveling through the air.[20] Brazilian striker Robinho stated, "For sure the guy who designed this ball never played football. But there is nothing we can do; we have to play with it.""
That's amazing. I love mixing a bit of chaos into well predicted stuff like that, it makes things all the more interesting
lol. imagine these guys, training every day for 20 years to be able to send that ball where they want it to go, and then they are given a ball that doesn't work *during the world cup*.
Loved this!
It’s quite apparent that turbulent flow makes life possible, but there is one very important use for laminar flow, and that is in biosafety. Biosafety cabinets are engineered to produce laminar flow in the air, and this creates a barrier that helps to prevent biohazards and pathogens from escaping the biosafety cabinet while working on biological experiments inside the cabinet. The laminar flow can push biohazardous material that has become aerosolized through the flow and into the HEPA filter before it leaves the cabinet space.
Always love seeing Canberra pop up in a Veritasium vid! Great to know those fountains do get the appreciation they deserve
"It's most notable use is in fountains"
Particle processing: bruh
I don’t get it😑
Is bruh always a thing?
@@professory4320 maybe?
@@professory4320 maybe?
Professor Y maybe?
Instantly thought of how destin would feel after reading the title😂
Alex Marte same
This was recommended to me from his most recent video.
Very informative. Thank you.
I have come to understand something about turbulent flow from Viktor Schauberger's work. This greatly helped.
Thank you.
"So where do you live?"
*"Vortex Street"*
Reynolds Street :-)
Shut up
OR DO YOU
On the corner of turbulent and laminar
I used to live on Power street now its harbor street
"Turbulent flow is more awesome than a laminar flow."
Destin: *Hol up*
Cul Doode LoL
not like he said that in the vid
n o
helloo fellow 9gagger
Destin: *tHaT's iLleGaL*
This is the only channel I keep accidentally watching because the algo recommends it and I never read the channel name before clicking because the title’s so enticing
As soon as he hovered the camera on top of that 🌀 it looked like we are go in inside it such a great illusion
As an aerospace engineering student, this was a love letter
as a mechanical engineering student, this was a sex invitation
Yeah, I was really pleased with myself that I literally already knew everything in the video. Im mechanical though, but my university is really big on aerospace so a lot of my classes are fluids related.
@@DJGuppy321 fluids are much more fun than solids though, especially fluid dynamics is much better than solid dynamics
To be an aerospace engineer is what I dream of :)
As a meteorologist too :)
I'm a mechanical engineer and I once did a project in my senior fluids lab studying drag coefficients of rough spheres versus smooth spheres and other objects with round cross sections. We demonstrated that
1. The rough sphere had a smaller drag coefficient in the wind tunnel due to induced turbulence at the surface, and
2. You must always remember to prop open the door so that it doesn't slam closed when you power up the tunnel and disturb the computer science students in the lab next door.
Word
When they were testing the cold weather capability of the SR-71 in a refrigerated hangar at eglund AFB in florida, the Lockheed guys asked the AFB guys if the hangars could handle the SR's engines airflow. They were told it was not a problem. So when the SR started up (with the exhaust piped outside to keep the hangar cold) It entirely collapsed the HVAC ducting in the hangar.
OOPS.
@@maniacal_engineer
That sounds like one of those "oh crap their figures were metric" kind of things.
And it was important to not disturb the computer science students in the lab next door because?? --- They were sleeping???
@@ThatBoomerDude56 Yes. Code was compiling. Perfect time to get sleep. Or have sword fights.
so, would a car with a rough outer skin have a better drag coefficient than a very glossy, polished skinned car? LETS TEST IT!
Transport Phenomena is my favorite subject, I’m so loving this video
I love your videos and concepts, I love turbulence as the way they are and love those materials you use to show turbulence, like some kids balls these days in Kmart or toy shops but I love laminar flow too. It’s awesome as waterfalls that are chaotic transitioning to turbulence look awesome but small ones too. Their respective sound that they produce has same effect I.e disturbing or chaotic vs calm or pleasant. But I like both. Enjoy world
Me, an engineer who just likes easier math associated with Laminar Flow: my opinion on Laminar being better than Turbulent will remain unchanged.
Hey but alpha is only 1 with turbulent.
Steady state, 1D, symmetric flow with no body force please
@lil Chungus Lesser being? You are not welcome into the Elite Society of Engineers.
@lil Chungus Likewise
@lil Chungus Huzzah! a man of culture
Every body gangsta till the dead fish starts swimming
One of the biggest WTF moments for me
Me hearing herbal space program music in the background.....hhhmmmmm :)
Dead or alive, you're swimming up stream.
Haha.. #WestSideGangSign
@@figa5567 I had to rewind and listen again when he said that
Oh god the photo of Jupiter on the thumbnail is so amazing and jaw dropping
I’ve always loved turbulent flow (check picture for reference) this video has shown me there’s a name for it and that if I learn math I could be rich. It’s also given me an appreciation for laminar flow
"Transitional Flow is the BEST" Video when?
Hey! I identify as unsteady, uniform, compressible rotational flow and I find this statement offensive. #allflowsmatter
wut
@TRICLO Here is a man of science
Is flow is the best... This is what :
czcams.com/video/lCl7I7png08/video.html
Actually progressive flo is the best... She's the best
Never heard this term
before, but this morning I was thinking about how the cream in my coffee swirls beautifully and switched directions so many times- now I know what it is called. Thank you for helping me become smarter everyday.
Jokeal
After your coffee finishes swirling there’ll be at least one particle that returned to its exact original starting point :)
Knowing things doesn’t make you smart
@@hellodumplings8564 the almighty has spoken
@@hellodumplings8564 not commenting doesn't make you illiterate
exactly like me! xD
Grandioso video, muestra lo bello del flujo laminar. Como lo explica es un flujo de complicado calculo, pero con hermosas aplicaciones.🙌 Nunca entendí ni analice sus aplicaciones, hasta el día que vi este video. Gracias por el contenido 👌
jajaja i love this colaboration between you two
Can we just say that the liquid he’s playing with looks amazing
Yeah and I like your name by the way😉
No... We can't!!!🤨
Hey Alex's!
Needs glitter, uv light, thermal energy
looks like a certain PC cooling fluid
I love how the quality of his videos haven’t changed in 7 years, and that’s a good thing for him
You aren't supposed to insult people😠😠
Its a rare sighting among CZcamsrs.
I wish vsauce was still old vsauce, like Derek here is. New vsauce is still cool tho
Skases
czcams.com/video/iW-aOvyO91M/video.html
@Bude Lasial that doesnt mean vsauce suck
This video give us great inspiration for a scientific paper published in Nature Communications. Big Thanks! The paper is about a digital, self-powered sensor array to sense aircraft aerodynamic stall by triboelectric and piezoelectric nanogenerator, in title of “Digital mapping of surface turbulence status and aerodynamic stall on wings of a flying aircraft”. DOI: 10.1038/s41467-023-38486-6. We also believe triboelectric nanogenerator is an interesting topic that we can talk about.
Long but great.Thanks a lot.
Life is turbulent, and the things I love are laminar
Mission successfully failed
Yes bro Laminar flow is like your Crush that will never meet u but U lover her and Turbulent flow is your friends
Snap back to reality
This sounds more suicidal than I’m sure originally meant
Wise man, give us your wisdom.
A little revision:
Blood flows through aorta in a LAMINAR flow, not turbulent. Turbulent flow is seen in diseased arteries.
Reference?
Mukul Joshi I got some for ya bud:
www.cvphysiology.com/Hemodynamics/H006
www.cvphysiology.com/Hemodynamics/H007
@@vim1729 Davidovits "Physics in medicine and biology".
One more thing, turbulence is dangerous because they will have y component and it will create force on the walls of blood vessels.
Actually i didn't knew about it but I was in doubt and I was right 😆
dr Huriah M Putra * your comment is VERY incorrect there are people who have pulsital tinnitus which is caused by turbulent flow even though they have no diseases arteries*
I know you'll likely never see this, but I absolutely love how excited you get on these subjects. Your videos often start with a simple question, calmly asked. But, you always seem to get really excited and it excites and intrigues me. I love your content.
Some channels just spam their sponsors, but you prove that they work. Great
Destin: LISTEN HERE U LITTLE SCIENTIST
Val Fiuta yes
I was thinking the exact same thing. Destin loves laminar flow.
I've been flying kites in this lockdown period everyday and one thing i noticed was when wind blows and lifts the kite and then at a certain point when its going steadily up, at a certain angle the lift developed in it suddenly becomes zero and its shoots down itself to the ground as if it was a crashing rocket and you can't stop it, now at 10:28 i realized why it happens, this question was really stuck in my mind for a long time
Maybe you can now modify the kite to fly longer without stalling.
It very similar but kites work different than airfoils. Kites achieve lift from drag unlike airfoils.
I imagine as the kite rises you actually get a lower angle of attack which in turn reduces drag and in turn, lift. Airfoils on planes stall with a higher angle of attack.
Please modify the kite! We want to be updated on your future kite endeavors, kind sir.
@Kenn P62 I think you talking about Indian fighter kites... I fly them and know about the V technique but other than that I never realized that turbulence could be a factor. Good observation Somyadeep Bhargava
Nice name
I really enjoyed this video thank you
As a mechanical engineer who studied fluid dynamics, this was a great video with simple explanations to the complicated topic of turbulent flow. The immediate thing that came to mind when you said you wanted to make turbulent flow seem more awesome than laminar flow was using vortices to your advantage in vehicle aerodynamics. In Formula one cars they are not allowed to seal the floor containing low pressure for downforce with physical parts. They therefore generate vortices from wing tips that travel along the sides of the car to shield the low pressure region from the surrounding higher pressure air thus preventing a loss in downforce. This energised air is also easier to manipulate to flow in directions of choice. Another thing you notice in commercial plane wing tips is at the end there is a long curved piece that raises the tip vertical and away from the surface of the wing. This keeps the turbulent vortices coming off the wing tip away from the long wing surface which would disrupt the flow over the end of the wing and cause it to separate sooner. Also, another interesting characteristic of turbulent flow is how it is used in heat transfer to maximise temperature difference and thus improve heat transfer. I will let you research more about that one and maybe you could make another video about these awesome uses and convert Destin into thinking turbulent flow is so much better!
"Turbulent flow is the rule, Laminar is the exception"
I'm now pro Turbulence
Turbulent flow is just regular flow. Laminar flow is special.
Laminarphobe!
Verlisify i did not expect to see you here
@@LeoStaley more like turbulent flow is the dad and laminar flow is the special child. Ppl love the child more than the parents 😂. Turbulent flow deserves more love.
@@goldenhawx8652
Why parents? Turbulent flow didnt raise laminar flow, the personification is irrelevant, gotcha!
I don't even *love* laminar flow but it's far superior than turbulent..
destin when he gets this notification
*whoms't has summoned the almighty one*
Destin would certainly get trigerred
he's literally in the video kevin ndayishimiye
@@allegrovivace6806 i commented before i watched it
@@kevinndayishimiye934 whomst'd'even't
Just think about art. Watercolor painting. Acrylic pouring. Epoxy art. Turbulent flow is what makes it fascinating and what's part of the core of these art styles. I love it. 😍🎨
thanks for making fluid mechanics concepts so interesting.
🔧
When you get stuck on the toilet learning about turbulent flow... THATS chaos theory.
accurate
hope u used a flushable wipe
reading your comment on the toilet
Speaking of Chaos:
Big whorls have small whorls that feed on their velocity
And small whorls have smaller whorls and so on to viscosity.
poop...uh uhh... FINDS a way
"Turbulent flow is more awsome than laminar flow"
Destin: *say sike right now*
Turbulent is more useful but laminar is cooler
what the hell is sike?
Blox117 it means ”just kidding” i think
It's spelt "psych" as in "haha I psyched you out".
I studied Hemodynamics as part of a medical course in college, and one thing I noted that wasn't mentioned in this video was the creation of turbulence when moving from a smaller tube to a larger one in a pressurized system, such as the human body. This is something that can be seen on ultrasound when observing a stenosis of an artery, turbulent flow is important in diagnosing stenosis' in the Common Carotid Artery(CCA) and up into the Internal Carotid Artery(ICA) as this is the main source of blood flow to the brain. Laminar flow is the kind of blood flow you want heading to your brain, but there are people out there with coiling, kinking and even looping carotid arteries.
Relevant, clever and interesting. Laminar flow helps in surgery, using clean filtered air to push outward from the 'open' patient, who needs to be kept sterile. Thank you
"That's space station commander Chris Hatfield"
We live in a time when hearing that is both awesome and mundane all at once.
Well I dont know about other people, but I'm a big fan of him so when I heard his name I was thinking more awesome.
@@emilie8170 I think he's getting at how the once mystical is now known. Like when I was a child and I heard the term space station commander it raised images of some monolithic character. But now because of things like youtube, and age/maturity, I realize he's just some dude like me.
@@caleb1031 yeah I got that, that's why I said because i'm a big fan I still think hes awesome.
@Ganda Gandara ?
Chris Hadfield is a very nice person, he once emailed me back when I tried to contact him teaching me life lessons when I was very depressed. A very kind person, easily my favourite astronaut.
'When you put a dead fish in water, it swims upstream'
What?
It does not look dead at all.
This remembers me of frog legs and tentacles.
@@calopsitamalucabird9434 "remembers me"
@@calopsitamalucabird9434 Its "this reminds me" :). Remind is what you use when something or someone causes you to remember something.
This is the best part of this video. A fishes anatomy, it's bone structure, shape and fin flexibility whip past turbulent currents and make the fish swim upstream if there is turbulent flow. It uses the whirlpools coasting past its body to wrap itself around and flick past using its fins. This pushes the fish past the eddy current and makes it swim in the direction it was hit. The cool thing about this is that it doesn't matter if the fish wants to or not - it naturally swims from where turbulent flow comes from. If there is a whirlpool it will have flow going in a spiral, so it will have current travelling upstream anyway. This means the fish only coasts in that part of the whirlpools (because of its body shape) and glides in the upstream-flowing part of a whirlpool.
It creates the patterns of art - because that is the result that creates rivers and waterfalls, waves etc. It's chaotic beauty, but with some kind of predictability.
Turbulent transition in flow is caused by disturbances in the flow, which cause U shaped vortices to form called 'hairpin vortices' these eventually elongate in the streamwise directions (that are moving with time), the hairpin vortex is eventually lifted up to higher regions of velocity, which then eventually 'bursts' the vortex, causing high rotational energy to be dissipated everywhere, which shows the first turbulent spot. Some of this rotational energy is swept back to the surface repeating the process until a full vortex breakdown is achieved and the flow becomes fully turbulent.