2:22 Oops. You have summoned Dustin from Smarter Everyday

Here I am, thinking they just put a fan in front of their car and look how the air moves...

Wind goes in, wind goes out. Nobody can explain that

Interviewer: "What makes you qualified to be an aerodynamicist for our f1 team?" Me: "I've watched all of chainbears videos and read Adrian Newey's autobiography" F1 team: "you're hired!"

I discovered this channel like 2 days ago and since then I have literally been doing nothing but binge watching your videos, it's like sooo addicting

Everyone else: wind tunnels Me: ooh he's got a SM58

Knowing quite a bit about computer simulation, I highly doubt we'll get rid of wind tunnels any time soon. Fluid dynamics (air is also a fluid) are incredibly complicated to simulate, not to mention things like resonances that come along with it. Even if we have the software to accurately simulate it (which I don't think we do at the moment, though I could be wrong), it'll be quite slow and it'll have to start over for every small change you make to the setup (like changing the angle the wind comes from). So, while simulations can be quite useful, I don't think they'll be replacing wind tunnels any time soon.

Video about laminar flow??? Someone call Destin from @smartereveryday.

Extreme liver challenge: Drink every time he says “airflow”

I find wind tunnels and cfd animations fascinating to look at. Something about seeing the air move, which is generally invisible gets me excited. It's like I'm looking at something I'm not really allowed to. Rebellious.

In the f1 2020 my team the one bloke is litteraly running a leaf blower on the car

its awesome to see how far you've come since the first video on aerodynamics (slipstreaming vs dirty air)

Ferrari: "SOMEBODY WRITE THAT DOWN, WRITE THAT DOWN!"

I find it best to think about wind tunnels in this way: It is easiest to have your instruments and the thing you're interested in stationary. (Think how difficult it would be to have very precise instruments attached to a car as it is haring around a track in still air). Now your problem is having the moving air mimic stationary air, while actually moving past your instruments and the test subject. Still air doesn't move much, so you have to make sure the air interacts with itself much less than it interacts with the thing you want to measure. Wind tunnels trick the object into behaving as though it is moving fast through still air, instead of sitting still in fast air. So the big problem to solve is how to make the air behave as though it isn't moving, even though it's screaming around a loop very quickly.

I have my own wind tunnel and it's very good for exhaust gasses! Also good for upsetting people in confined spaces.

You always seem to blow me away (no pun intended) with your animations. They always make things so clear and easy to understand. Top job!

simple: just throw some air onto those cars

My ex girlfriend actually did her master's in aerodynamic engineering and was aloud to use the Williams wind tunnel, she was working on a way to increase the max speed they could use rather than hit the make speed of the tunnel then extrapolating out from there because obviously they can't hit 300mh speeds with a wind tunnel...so they hit up to like 60-70 and then mathematically increase the speed to see what would happen....as such she was working on a way to make that obsolete and be able to get it up to actual race speed...she never could quite finish it before end of her course but Williams has carried on her work even to this day....as far as she's aware from talking to old friends who still worked there to recently and keeping track of the idea in mags an papers.. Edit: I haven't fully explained it very well in the post, I've just re read some bits and notice that... There is another post lower down which explains it abit more an better, she wasn't trying to allow the tunnels to run at any faster speed she was trying to find a way to reduce the need for the mathematical guessing how a part would behave at the top end because of the limits of the tunnels.

Keep Your Hands Off My Closed Loop Wind Tunnel!

I'm a huge fan (In wind tunnel).

F1: the air needs to be completely undisturbed for the readings Also f1 teams: we gonna put a massive pylon in drivers seat cause why not

As a project for our fluid dynamics class,i built a tiny wind tunnel,that was a very cool experience and I've learned a lot, design the wind tunnel and calculating drags,fan speed and ... Were so cool

CB: Here's a nice video about wind tunnels! Me: lel PIV

I really like your videos, they are simple and easy to understand and condense complex topics into simple, easy to watch videos. Thank you so much for making these videos :)

The amount of work and preparation in this video is highly respectable. I can't imagine what I'd do if I had to make a video to explain this.

Dunno about others but my gut suggests that wind tunnels will never be 100% phased out just because CFD is still based on 'approximations' so cannot tell the whole story alone. That is to say the CFD calculations are computationally hard. And there does come a point where the software has to stop doing the calculations and say 'yh, thats a good enough approximation' otherwise you would be running the calculations for an infinite time. And with the inherent aspect of chaos theory (small varuations to initial conditions massivly changing the output) more accurate simulations require more computation of more 'particles' etc.. etc.. I may be wrong, but one huge benefit of wind tunnels is the ability to compare the real world with the CFD models, allowing to to verify the CFD calculations and make tweaks to the CFD calculations to better match the real world model. It might be plausible that the CFD models become so good that the extremely tiny gains gained by verifying the data with the wind tunnel may not be worth the cost of doing so. But my gut tells me that in the race for 1/10th second gains, plus the F1 regulations evolving and changing to introduce challenges means its just unlikely.

.....every time I watch your channel I learn something I didnt know or understand before. thanks my g (school is never out, jus done differently)

Best F1 KZfaqr. Without parallel. I almost enjoy your videos more than the race, Mr Bear. Thank you for your efforts.

I know how wind tunnels work, I just love watching any new chain bear video! Great work as always

Stuart you are very smart man , u answer all the questions in my head about F1 n u make it sound easy, I never got bored of ur material, keep it coming mate.

Intro looks great with 3d solids, shadows, negative effect and minimalist effect.

Mercedes: silky air,laminar flow, wind in wind out Ferrari: "Haha the wind goes Brrrrr"

“PIV” 😂😂😂😂😂 I love this channel man

Awesome simulation and explanation

This was an extremely well made and informative video, keep them coming!!!

Yes, the detailed technical videos are back!

I love this amount of weekly videoos thaaanks you're awesome

Thank You. Stellar explanation.

Your videos are always good but this one is especially great. Haven't expected that when I saw the video title! Great work. Keep it up!

This video was deep! Loved it. As usual, i learned a ton, all while realizing how much i don't know! Thanks again!

Had to build on of these for my extended essay, pretty fun project

Actually theres very little laminar flow in a tunnel, it's almost entirely turbulent. the trick is to get turbulent intensity as low as possible

Awesome video. Very informative. Keep up the good work.

Hey Chain Bear. I love your videos, but I want to propose a topic for a future video. Can you explain *graining* ? And why it occurs, while others don't have at? And how some drivers are able to drive it away? In the last race in Turkey some drivers suffered from really harsh graining, and it's really hard to fully understand it for normal people!

Lots of cool info there. I had no idea they were so complex. Or that they were limited in speed and to scale models.

that's a great video and those are some wonderfull animations that help explaining the topic, although i think that in situation like 9:50 with those three cars, it would be easier to detect the animations i you turn down the bright level in the other two, so light guides the eye, or maybe it was just me and it didn't affect anyone else, anyway great video thanks for explaining this kind of complex stuff to mundane people like me.

Excellent info, thanks!

Really great video

This us really useful, cheers xx

Excellent explanation. The only detail I would add is that they move the road surface not just because of the airflow under the car but also because a rotating wheel affects the airflow differently than a static one especially at the rear of the vehicle where turbulence from the wheel impacts the performance of the diffuser and creates drag.

Informative video, gr8

Excellent vid. Cant hear lamina flow without thinking of Dustin (s.e.d). Allways good to hear Anderson get a mention, i could be wrong but was it not Gary Anderson that invented the pito tube rig ??.

This channel really doesn't need an intro

That was a smooth video.

Thanks for the laugh. I had paused the vid at 0:39 to get a drink. Walk back in and my GF asks. What do horses and a guy with a camera in field have to do with F1 wind tunnels?.... I said where do you think the term horsepower came from? I think the smirk on my face just earned me the I have a headache tonight dear award......

Great video Stuart! Can you also make a video about CFD & it's applications in motorsports?

This video tickled my brain in all the right ways

Who thought of Smarter Everyday when Chain bear said laminar flow

Awesome video

Hi Chainbear. Can you do a video about fuel management? Been searching all your videos to no avail.

chain bear is so underrated

I laughed a little too hard when he said smooth and air flow is going to lose its meaning lol good shit chain bear.

Probably a stupid question but wouldn't it be more useful for the teams that don't expect to be out front to test in turbulent/chaotic air flow? Like obviously getting a baseline understanding for qualifying and seeing if parts work as expected is necessary but surely seeing how the car behaves and can be improved in traffic would be more useful to some.

We had a cooling problem on our Van Dieman RF88. We tied some red wool to the front suspension, ragged the car past the pits at Silverstone, took photos of it as it drove by and established that the air was being shifted up over the radiator cowlings. Wind tunnel? Pfff. We learnt from sailing telltails 😀

PIV sounds awesome

I know this doesnt have a lot do to with this video but I just want to tell you chainbear that you are literally helping my school work. So we have a important presentation that we gotta make about something that has with technology to do. After 2 hours of being lost on what to talk about I decided to pick F1 cars, and while it's a big thing to talk about, your videos are the best. I have ready watched your videos before, but I've been binging these videos again and they're phenomenal The way you talk about stuff makes someone actually understand it like aerodynamics and wind tunnels. TlDr: ChainBear is literally saving my grades, appreciate you man

1) I love you & everything you’ve done to teach me more about the intricacies of F1 2) why do they have to use 60% models, why can’t they use full scale models

1:24 "I want to go deeper cuz I luv u all"...aww thx man.

I have an idea for an episode. What do they mean by "balance" and how is it adjusted? They sure do talk about it a lot.

Didn't expect that method to be the less invasive one

Question: Why is it better to have the flow of air as smooth as possible? When running on a track, the air doesn´t have a laminar flow or does it?

So did Williams allow you to photograph their computer? That was a very smooth video Stuart. Sorry someone had to say it.

2:22 *A wild Smarter Every Day Appears*

Great video as always Chain Bear! However, a question popped-up as I was watching it. How do they simulate track conditions on the wind tunnels? Because air rarely is smooth and steady on a racetrack (unless you are Hamilton)

This man chuckled at PIV

To keep up with SWIRLIES F1 aerodynamics teams have come up with some...BOBBLAGE This would have been a very nice crossover between Chain Bear and WTF1

of course this comes out a day after my paper on wind tunnels was due haha

Great video as always, but do you know if you are allowed to use two models of cars to simulate driving behind another one or do they just simulate that as well or not at all?

Very informative video! Can you please favourite this comment, because there is really lovely video out there by Willem Toet who worked for Sauber for many years. He shares really cool inside information which you mentioned in this video, but Toet explains how did they come up with certain methods and so on. Great video, I'd like to see more quizes though ;)

Howdy Stuart!

Hey, I've been wondering. Where do you get your information? Because your videos are very informative and I've just been wondering where you get information.

Wow, there's a lot to it. The tunnel itself to start with.

Main part i dont understand is Which of the f1 races has a track that moves at same speed as the wind. Aren't all tracks static and the wind would naturally cling to it.

1:00 when the vid actually starts

Whenever you said "laminar flow", I got flashbacks from Admiral General Aladeen.

Excellent presentation, as always. I'm interested to know, given that the conditions in a race won't match those in the wind tunnel, is this a major issue?

Realistically, CFD will never be able to fully replace physical wind testing-non-laminar and transition airflow is simply too complex to be accurately modeled. Werner Heisenberg was quoted as saying that when he dies he wants to ask god, “Why quantum mechanics, and why turbulence? I’m pretty sure he can answer the first one.”

What a happy ending 🍻

Does it matter what type of airflow comes in to the engine Laminer disturbed or turbulent? Is one more efficient than the other.

So if the teams are upset about "dirty air" when behind other cars in corner, is there not a way to test "dirty air" in the tunnel?

I heard a story that a LM team (can't remember if it was Ford in the 60s or Porsche) tracked the airflow by seeing where the dead flies were on the car. They noticed there were none on the rear wing which meant the air wasn't flowing over the wing as intended

hey chain bear, thank you so much for your videos. absolutely brilliant. I have a question. How can you explain the competitiveness of this season? Yes Red Bull came out a lot better this year due to the high rake being the favorite to my understanding, but recently we have seen a Red Bull that is arguably all around better than the Mercedes, even at the tracks where Mercedes were to be stronger. Also Land Norris out of nowhere is on P2. George Russell somehow qualifies P9 when His williams has sat in P17 all year. Brilliant driver but how does he go from P17-P9? This year has a lot of shakeups. I know about the flexi wing as you have made that video, but perhaps a video of just why this year is so competitive compared to the past years of stagnant racing? I mean giovinacci is P5. The Aston Martins are strong. Its very interesting... Why is this? Parts improvements? if So, what parts? Thanks

I wish my physics teacher was atleast 10% as good as you. If so I wouldn't be watching youtube all day long with soo random pointless video. Ps: your videos are the best one's and I wait for them daily to pop up on my feed😍😭

What app do you use to make you animations because I would really love to know

The fact that we’re measuring wavelengths of light just to make a car go skirt skurt

6:38 somehow I never connected those dots until I watched this video

We all know the skillshare trial is not limited to 1000 people.

@ChainBear lately i was thinking of inline 6 and v6 engines and one characteristic pros of an inline 6 engine is that its balanced and in f1 the engines have to be pretty well balanced in order to run smoothly, so that makes them more complex, could f1 cars have inline 6 engines or not?? like is it a viable option??

If dirty air is THE problem right now, why are they not testing in these situations and finding a balance between the two? They put so much time and resources into making sure the air is as clean as possible but aerodynamics are hardly a problem right now?

Is there a rule limiting model size and wind speed for tests, or are there practical reasons? I've been at the Sauber wind tunnel about 10 years ago and that thing is totally big enough for a full size car, and can apparently go over 300km/h, so they could just put the real car in it if they wanted to