#F1

[@f1aerodynamicist]

If you would like to take the first step into F1 aerodynamics , check out my course on Udemy. www.udemy.com/course/formula-1-aerodynamics/?referralCode=526FE430BE7CC668A2FF

[@rolandotillit2867]

While the hot air that comes off the sidepod cooling has lost a lot of its energy, the heat, and hot air itself has interesting properties that actually help. A hot wall has been shown to help flow stay attached, and to delay the separation limit at high Re#'s. This is because hotter air has lower density, which reduces the boundary layer, and also has higher kinematic viscosity. While the viscosity of air is relatively low, temperature increases have significant effects, air at 150C has 3x the viscosity of air at 20C. While this may not affect the aerodynamics of an F1 car an awful lot, what it does do, is influence the air that flows around these vents, and hot walls. If the air has lost its energy, that simply means it has slowed down from free stream velocity, what it has lost in kinetic energy it has gained in potential energy. What I mean is, this slow energy flow acts as a wall for any further incoming air. It in kind acts as virtual body work, and since this is drag you already have to deal with if you don't want your mechanical systems to overheat, might as well get the most out of it. When I see these cooling louvers I don't see lossy air, I see free stream air sticking to the downwash angle more than it otherwise would. However the boundary layer propagation means the bulk free stream high energy flow is probably like 20-30 mm above the bodywork, by the time it gets to the back of the engine cover. This means that if this hasn't been accounted for, the airflow is probably not interacting with the lower suspension arms in an optimal way. I bet there's some good gains from optimizing the rear lower suspension arm fairings for the flow field the new sidepods create.

[@fam.hunger5244]

To be honest, I think it's this floor edge vortex that makes the difference between good and bad on these cars, along with the suspension. I explain this with the example of the Red Bull, where it works perfectly. Because they have minimal movement of the aerodynamic platform and a high "roof" of the underbody, the vortex that flows from the front to the rear can develop better because it has space to rotate. In other teams with a lower roof it doesn't have that and if the ride height fluctuates a lot on top of that, the vortex becomes elliptical and the vector field of the vortex changes, leading to downforce losses. The same is true for the Floor Edge Vortex, which Red Bull incorporates and adds to the stable Vortex from the front. Because the aero platform is very stable, this vortex is also not depressed, does not become elliptical, and does not change its vector field. For other teams it does. I think that all teams except Red Bull simply have the problem that the vortex becomes elliptical and the vector field changes either from the main vortex or from the floor edge vortex. The problems of Ferrari or Mercedes all come from that. And the fact that they can't drive as low - that's also because at a certain point the main vortex collapses because the lower roof of the underbody makes the vortex elliptical, which changes the vector field and again massive downforce is lost or even the vortex collapses. With Red Bull, this doesn't happen because the "roof" of the diffuser is higher and even with 10mm lower ground clearance, the vortex still has room, doesn't become elliptical, and changes its vector field.

[@f1aerodynamicist]

Lovely insight ❤️

[@f1aerodynamicist]

I totally agree with this, I've seen this phenomenon happen. I was actually looking for resources of elliptical vortices , do u have some ?

[@zattanna74]

its seem you are right based on the view of the redbull floor compared to the merc and ferrari

[@ivanbastos4963]

Great video as ever! Are you planning on making a video comparing the top team's floors? Since we got so many pics from the monaco weekend

[@f1aerodynamicist]

Rather than comparing them I want to focus on how they would work... So that's coming next

[@domtoni4567]

Great video !!

[@f1aerodynamicist]

Thanks Dom ☺️

[@zandvoort8616]

What is a vortex in F1 context and benefits it has? Surely smooth undisturbed airflow is better?

[@jdmac8719]

Amazing video really helps me understand. Also How to you design the car models?

[@f1aerodynamicist]

Thanks mate. With the help of a team.

[@jdmac8719]

@@f1aerodynamicist ok thank you for the information. If you don’t mind asking, which software do you guys use ?

[@brendonharipersad4513]

Awesome video Shub!

[@f1aerodynamicist]

Thanks Brendon

[@Rijingeorge]

Please explain Rb19 new floor ?

[@f1aerodynamicist]

I have to make a series for that.. coz it's not straight forward.. but it's incoming 📨

[@sheabryantmusic]

This little winglet on the side impact structure might just bring the return of the bargeboard.

[@Jay-nk6dm]

Greatt video as always shubh (hope i heard that right). if the goal of the floor edge wing is to get the bulk flow incorporated into the floor vortex, what/is there a role for the airflow coming off the edge of the winglet exterior? Also, do you think the mid wing is a feature that would be advantageous to keep i.e. does it provide a stronger vortex for usage that other teams can?

[@coppachahta5488]

🧐I’ve learned quite a bit in 12minutes yeah thanks for that #Newsub 👊🏾

[@f1aerodynamicist]

Most welcome 🤗

[@zandvoort8616]

Can you make a video about the kicks/flicks/ridges that seem unique to the Red Bill floor? Is that the key to their prodigious speed?

[@f1aerodynamicist]

Yup, that video will show up next weekend.. getting some good data on it

[@jeffcole75]

love this content man.... my only question is how exactly do we say your name man? is it Suge?

[@f1aerodynamicist]

Shub

[@Amin-dd9mk]

Would've been cool if they managed to find the solution for the original aero concept. But this concept is definitely easier to manage.

[@abhishekdas9006]

Again great video sir, Monaco help us quite a bit. If possible kindly provide a floor comparision : )....

[@f1aerodynamicist]

Coming next week

[@aabhisheksirohi]

Gazab maza aagaya

[@f1aerodynamicist]

Hahah , 🔥💯

[@tourmaline07]

Great work and analysis as ever - would be really good if these got picked up by F1TV or Sky and you were brought in to show these CFD simulations on their TV programs - would add a whole layer of insight to their talks. Although certain people would always like to come up with stories which suit their agenda. In general I'd like to see far more people like Rob Smedley - with a recent technical background involved in the broadcasting side of things , especially with Sky. James Vowles showed that brilliantly from the pitwall last time in Monaco.

[@f1aerodynamicist]

Thanks mate