F1 Aerodynamics - 2: Turbulence, Drag and Vortices
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- Опубликовано: 6 сен 2024
- In this second video on aerodynamics, we look at when wings stall, turbulence, vortices, different types of drag and controlling unwieldy air flow.
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Twitter: / chainbearf1
Writing / Illustration / Animation / Editing / Narration:
Stuart Taylor
www.chainbear.me
sharecode: chainbearsharef1
A lot of people are enjoying the outro songs to these videos. They're made by Banjo Guy Ollie - he does lots more of them over at his channel: ruclips.net/user/olonguet
This one was at the end of the game "Portal". It's called "Still Alive"
You are my hero, when i get a job you'll have my patreon contribution
Great videos man. And this is just a suggestion, But I do think it greatly would improve overall understanding down the line to and animate the car moving forward through the air like in a race, rather that the air moving around the stationary car like in a wind tunnel. This could be achieved by animating the wheels rotating or the car rocking forward and back slightly in the animation. I understand this would be tricky, but it would greatly improve conceptualization of the practical effects, especially when it comes to the effects of driving into turbulent air. This would be best visualized by the car transitioning from offscreen to onscreen and passing through turbulent air towards the center of the image, as if you were slowing down the cars actual movement and highlighting the fluid dynamics generated by the car. But its just a suggestion.
I was gonna say that
Chain Bear can a car create drag decreasing its top speed, but still not have high/purposeful downforce to corner quickest?
I start your videos thinking "well I probably know about that" and come out thinking "gosh, I knew nothing". Superb series, please keep them coming!
Yeah, his videos are exceptional. For a sport as technical as f1, it's shame there isn't more of this.Honestly, f1 can be so hopeless sometimes.
We're doing science and we are still alive!
we feel fantastic and we're still alive
Never seen anyone explain aerodynamics in this depth before on RUclips, never mind in such a succinct and well-presented manner. Keep it coming!
Can’t wait to learn about the aerodynamics of the underbody and diffuser!
you don't have to end this series, a lot of people really like this. It doesn't have to be a daily upload, it can be a once per month, or a do it whenever you want to series.
i didn't know aerodynamics can be explained so easily. wonderful
That's' because our sport never attempted.
Wow. You are putting my personal knowledge of the sport of over 18 years to shame. Massive thanks for simplifying complicated details. There's always a lot to learn!
Finally someone who understands how a wing works.
E: This is one of the best explainations of airflow around an object I've seen on youtube. BTW: All the motion here is relative. The air is *actually* stationary. :D
Oh, Right! Because air is a fluid that the cars are cutting through at high speed, and when the focus is placed on the car itself, it seems as if the air is the one that is moving. That is so cool to me.
Precisely. This is what I want to do (roughly) when I'm older. I dream of building my own plane, and my free time is sometimes spent figuring out how to make all the systems within. Look it up, it's really interesting. Be careful though, it's a rabbithole I haven't found a way out of yet. :)
Stationary, as in, it's the car driving into the air, not the air blowing onto the car, as the animation might suggest. The air particles are still moving as the car's surface "hits" them.
Incidentally, if you do blow air onto the car's surface while the *car* is stationary, the aero devices still work, at least in principle. This is what a wind tunnel is, which F1 teams (as well as aeroplane manufacturers) test for aerodynamic performance.
Yes and no. All motion is relative to the observer. If you observe the air flow from the earth the air is stationary however if you observe from the car itself the car is stationary and the air flows around it. There is no right or wrong way of looking at this, it all depends on what you;re trying to achieve.
Well... speed is relative
Did you just...
No way...
You used still alive from portal as your outro song!
HELL YEAH! I FREAKING LOVE PORTAL!!!!
joão paulo rodrigues poltronieri Yes, yes he did. However he did it solely for the people who are still alive
Ba dum tss
Makes watching the video till the end even better
Simply explained but highly informative, great job.
literally 1st
*video was released 20 minutes ago for me, this guy commented 2 days ago* Me: whaaaa????
patreon
Check the patreon credits :)
Awesome explaining! Simple enough to act as an aero primer, but still covering lots of more complex issues.
I Learnded Things.
Such an amazing channel. The videos are absolutely incredible. Well explained and logical so inexperienced fans can easily understand the technical side of F1. The regulations are also very important and not well explained, therefore youtube videos are very useful. Good job!
My obsessing over the hull boards for my 4-8 km/h boat have brought me to your series, and it's very insightful; my boat will have great mileage.
Amazingly done. I love your simple but beautiful graphics and your easy to understand approach. Keep it up!!
Your video's are so informative! :D Whenever I get a notification of a new video I immediatly go watch it. I know it's gonna be good!
I follow F1 for about 2,5 year now, and I've always thought that the front wing was only there to push the nose down for extra grip for the front tires and that it had no other use :O
Now i have a different view on F1 chassis thx
Once again, great video on aerodynamics keeping the concepts simple but expanding on the ideas from the previous video
I absolutely love this whole series! I think its amazing how you manage to explain such a complex topic in a way, that everybody can understand the basics. Keep it up, your vids are great!
Still Alive sounds really nice as an outro to your videos. Keep it for all your upcoming videos!
Best f1 channel out there. Great job !
Superb, I think this is the best yet. Thankyou so much, I understand now for the first time why the front wings are so intricate! The animation at 5:21-5:25 is the key!
My god, at long last a video that finally has managed to clearly visualise the aerodynamic subject matter of what I'd only understood from a rough concept.
Those animated displays of airflow behavior around the various vortex-generators and other parts of the car finally helped me understand and visually see how stall causes excess drag and how a vortex works to reduce it.
THanks a million mate! :)
As someone who had a vague idea of how aerodynamics work on an F1, this series has already helped me understand more about how smaller elements effect airflow, looking forward to part 3 :D
Thank you. I'm doing a schoolwork about F1 aerodynamics and this video helped me so much to understand vortex
The portal music at the end👌 great touch
that still alive outro is a really nice touch. matches the vibe perfectly.
So great, I've always wondered what was the point of vortices and why they were needed. It was explained so well here, this is my favourite video of yours so far!
Literally the best thing ever..
This presentation is tops everything..
Amazing, man! Finally came to better understand a previous explanation about how lift is generated, that previous being made as a correction to a misconception about the Bernoulli's principle on the generation of lift, since it is free flow and not a restricted flow. In that one explanation they also explained that the lower pressure was not doe to the Bernoulli's principle, but yes that difference in pressures resultant of the shape, but, I wasn't properly understanding still how the lower pressure was being generated until now, with your explanation, now it's finally water clear. The vacuum, which would be generated otherwise, is the reason for the increase of speed and pressure reduction... Couldn't be more thankful, right now. Thank you!
This is a fluid dynamics class :)
thank you
i like the new change in the background. It looks much neater and more professional! Keep up the good work!
Wow! I never even had an understanding of drag in terms of pressure difference at both ends. I used to think it was only just air running into an object. Good work mate.
I hope you're making some money off of all these vids. They're so great and informative, this is what RUclips has been designed for and this is the content that should be highly promoted. No clickbait, no drama, no bullshit. Keep em coming man, love it
Thank you for clarifying at 1:37 that it is not drawn to scale! Fantastic videos: What a great way to teach physics.
I'm impressed with the outro music
Love Portal series
ty for the correction at 1:12 i was watched part 1 3-4 times trying to figure out how the air flow will "Pull down" on the car, great video!
That's a great easter egg at the end using Portal's theme!
How fucking smart are those engineers!? Great video as always mate
Thank you so much; this video was the best at explaining aerodynamics out of all the ones I've seen so far; great explanation!
You are legit the best informative F1 Channel ever. Keep it up man.
My wife was listening to this video in the background and was adamant that you were Brian Cox! Great video by the way.
Still Alive on the credits. Nice.
Flat Eric I'm making a note here, "Huge success". It's hard to overstate my satisfaction.
Thanks. This was very helpfull in finally understanding why teams want all these vorteces along the bodywork!
I recently bought F1 and didn't know why. But ever since I've found your videos, I've slowly fallen in love with the sport and now this is one of my favorite games. Thank you for all the cool information and introductory to a new sport
Well, I was going to comment on how good this video was. Then I heard some obscure Portal music at the end.
Whether you intended it or not sir, you just made a good video into a great one.
Thanks.
Hi! Thank you so so much for these videos! I’m a mechanical eng student just fresh out of year 1, currently just trying to understand how aerodynamics is applied to F1 cars ( I only previously knew about aircraft ) and the videos are so crystal clear and amazing. I love how you enable the viewer to visualize the concept which is how I understand most things in physics, so thank you so so much. Really really appreciate this! It’s literally nat geo graphic air crash investigation level explanations ( even better) ! I love it!
An absolutely great explanation. As a Mechanical Engineering student, this channel has helped me understand my subject much more. Awesome work.
Wow! I have a new respect for aero engineers. It's almost a completely imaginary science, to anticipate how those invisible air molecules will move around each and very nook and cranny of the car. Legends!
Also, the cake is a lie
Gustavo More Rodriguez Look at me still talking when there's science to do. When I look out there it makes me glad I'm not you. I've experiments to run, there is research to be done on the people who are still alive! :D
EDIT: Fixed a silly typing mistake.
supersonic2K8 God, the memories of finishing that game!
Gustavo More Rodriguez Yeah. I know. XD
I learn a lot in this series. Thx a lot for making it!!!!
This is so well explained. Nevermind all the details and minutae needed to have a comprehensive understanding of these dynamics. In terms of just understanding the reasoning behind the choices the engineers have made in this case, this seems to satisfy it sufficiently, without requiring a houndred hours of science education.
I love this series, thank you so much! Throughout the last year or so, I've become more and more interested in the technical side of F1, be it engine technology, aerodynamics, tyres etc. - and you've mastered the art of making a lot of the complexity somewhat easy to understand. Your channel is amazing, without a doubt my favourite F1-related channel. Keep up the awesome work!
The portal song for the out to is perfect! Love this channel.
I greatly appreciate the effort you're putting into this videos in order to bring such complex matter to the masses. I think that there are not many videos out there that can visualize some of the phenomena so intuitively. However, I think that some explanations, albeit in terms of simple newtonian mechanics phenomenologically not incorrect, lack some correct physical foundation.
You describe flow separation as an effect of air particles not being able to follow the path curvature of the airfoil with the force of the movement being generated by a pressure gradient. In fact, travelling down the chord of the airfoil an ever increasing pressure can be measured (which ultimately will force air particles to flow backwards, forming a large region of recirculation, i.e. a vortex), so in stationary conditions the opposite observation can be made. This adverse (i.e. increasing in direction of the flow) pressure gradient can be explained with the decrease in fluid velocity due to the Kutta-condition at the trailing edge (i.e. the continuity of fluid velocities from either sides of the airfoil) and the therewith increase in static pressure (Bernoulli equation for barotropic fluids). Secondly, the fluid velocity within the boundary layer additionally decreases due to dissipation via friction which ultimately supports the change in flow direction.
Also, you mentioned in the first video that the airflow below the airfoil is being accelerated because it runs into a barrier of undisturbed flow below and hence has to accelerate through a tighter vertical space. However, looking at a rectangular-shaped control volume around an airfoil and applying the Navier-Stokes-equations in integral form yields that there can in fact be momentum carried out of the control volume. This is because the vertical component of the fluid velocity can generally not be assumed to be zero (which can be proven by the displacement effect of boundary layers). If your explanation of the generation of lift forces would be correct, you would be able to measure a net downward force on the airfoil with the flow being inviscid, which has been historically proven to not be the case.
Rather the phenomenon of lift is explained through viscous effects, namely the generation of a starting vortex at the trailing edge of the airfoil and another counter-rotationg stationary vortex around the airfoil, causing a net circulation and therefore a downward force (described by the Kutta-Joukowski-Theorem). All of that is described really well in Anderson "Fundamentals of Aerodynamics".
TL;DR: I think for the vast majority of people, these videos are a huge help in understanding aerodynamics and the explanations probably are "right enough". But still I think that there are some things that are not entirely true from a continuum mechanics perspective.
OMG! This is the best explanation of how a wing works I have seen IN MY LIFE!
Thank you!
THIS WAS A TRIUMPH
Please keep this series going forever
Really increasing my enjoyment of F1, keep up the great work!
Thanks for a fantastic video on aerodynamics - one of the best out there.
it took 1 video to clarify all my doubts. thank you soo much bro
I'm a maths students and I love Continuum mechanics, but I often don't learn anything about what it means for real life applications. These videos are amazing and just what I needed, and are also good as I've just started reading Adrian Newey's book and often don't understand what different parts do. Thank you for making these videos and hope they keep coming!
This is so cool, thanks for another educational video!
You have some of the best F1 content in RUclips not just recapping the lap times or gossip like everyone else - this is content creation!!
F1 aerodynamics is so interesting! I have taken fluid dynamics and done some CFD on aircraft wings but these kinds of vortexes and that forward wing look like they have taken decades of wind tunnel work to perfect! Incredible aerodynamics and explanations in your video!
Just have to love this sport. Aerodynamics is more beautiful than any piece of art
The Explaination was just brilliant. Cheers mate.
Wow, I can't believe I was watching F1 for so many years without even understanding about the technology in depth, this explains so much why one car design is better and faster on some circuits and others are better and faster on other circuits, brilliantly put video, this should have been explained by FIA so as to gain interest in the sport. Thank you for all your time and effort. I wonder how you've got to know so much..?
Can u make about blown diffusers?
Few of the very informative video I found about drag and vortices. Great work!
You should point that those vortices leave the airflow incredibly turbulent behind the car, which reduces the efficiency of the wings of the car behind tremendously. True that every wing will generate some vortices, but the current concentration of vortex generators are one of the main reasons that F1 cars can't follow eachother .
It's in my 'Dirty Air and Slipstreams' video, but that's pretty old now I guess
This is fascinating! I didn’t know how they used vortices. Your videos are the highlight of my boring days! Thank you so much!
Thank you for all of the work you do to educate us on these interesting topics! As a mechanical engineering student in my first year, your channel helps me remember how interesting the stuff I'm learning is, and how it's applied, instead of getting caught up in how boring the lectures of the prerequisite classes may seem.
Great video. These are the kind of things I've never thought about despite watching F1 since being a little kid, but now that I hear about it it's actually super interesting.
Really good job explaining the basics and principles of aerodynamics in this "easy for all" way. Thanks, man!
This was so interesting that i didn't even realized that 7 minutes had passed. Thanks for this nice quality serie
Wow! So good, very well explained. Keep up the great work!!
I always smile a little when I hear the Outro-Song "Still alive".. ahh.. so many memeories.. :D
Good job on this video by the way. Really enjoyed it!
This made a lot of sense for a typical layman. Thanks!
Your videos are cool. They provide bite-sized information easy to understand.
Have a nice day guys hope you enjoyed the first glance on the new cars in testing
I feel like Chain Bear is about to take off in his RUclips career moreso than he already is
Seriously I was just thinking how Ted’s notebook development corner has got nothing on you! Great stuff!!
I really love the videos on aerodynamics. Being a huge fan of F1 aerodynamics, I hope you guys to continue the good work and get deeper into the concepts and and explain the working of all the aero devices used (including the banned ones). This will help us get a deeper understanding of aerodynamics applied in F1. Thanks a lot.
Wow, amazing video! The background is more eye-soothing as well.
I'm now clear with all the concepts... Thank you
Very good video! If anybody want to see an actual vortex, google "vortex y250". It's the name of the vortex mentioned at 6:18, and the most important one on the car. When I learnt about them I thought why are they useful. I got no answer yet but, if you think of them as tiny horizontal tornadoes (that's what they actually are), you can imagine the level of pressure and suction they can produce around them and how, by controling them, aerodynamist can make the car stick to the ground how they want it to. So they are really interesting and useful
These interactive visual representations are wonderful! Thank you!
Amazing video, as always!
Love the series, amazing video
Mate your job is sensational
I learnt more about aerodynamics here than I have at uni. What a good video!
great video, keep on moving sir keep on moving :P
That cover of Still Alive threw my off at the end lol didn't expect to hear a video game song in an F1 video.
Great video ! Lot of details explained on very uncomplicated way! Love it 😊
I am so thankful for your video. Thank you so very much. I want to build a truck that looks fast going still using aerodynamics. I don’t need the aerodynamics to actually work to principles, just to look smart.
Very informative video
Never knew that a vortex can aid in the increase in the downforce
Everything makes sense now. Thank you!
Nice job
this helped me SO MUCH with my school project