Alfa Romeo C43

[wogx]

[SmallSoldier]

A few more pics:







Pics from Alfa Romeo Twitter feed:

[organic]

Interesting split inside exhaust. Has a twist

[Venturiation]

This space engineer says the floor edge is used as a lateral diffuser and it’s very dangerous that alfa romeo is showing this to everyone

The car creates the downforce by sucking the air out from the floor and creating lateral venturi tunnels

[johnny comelately]

This space engineer says the floor edge is used as a lateral diffuser and it’s very dangerous that alfa romeo is showing this to everyone

The car creates the downforce by sucking the air out from the floor and creating lateral venturi tunnels

Isnt it just an inelegant bleed off point at the appropriate place to manage the vacuum?

[Holm86]

[beschadigunc]

This space engineer says the floor edge is used as a lateral diffuser and it’s very dangerous that alfa romeo is showing this to everyone

The car creates the downforce by sucking the air out from the floor and creating lateral venturi tunnels

It is just a mock up for the looks , flow doesn't even move in that direction properly at that point of the car. The channel is not credible

[MrGapes]

https://t.co/P8CgTQo1pI

3D CAD model of the C43, really cool!

[Andi76]

This space engineer says the floor edge is used as a lateral diffuser and it’s very dangerous that alfa romeo is showing this to everyone

The car creates the downforce by sucking the air out from the floor and creating lateral venturi tunnels

It is just a mock up for the looks , flow doesn't even move in that direction properly at that point of the car. The channel is not credible

It's very brave, especially where Formula 1 is concerned, to say where the air flows and how it doesn't. In fact, Willem Toet, long-time chief aerodynamicist of teams like Benetton, Ferrari, BAR, BMW and Sauber said just a few days ago in a public lecture at the University of Bolton (available on youtube) that it is complete nonsense what is constantly said, namely that F1 teams try to seal the underbody completely. That's not what F1 teams do, not at all. Lateral expansion is actually something that is used to create more downforce. So what this space engineer is saying actually makes a lot of sense and is exactly in line with what an F1 aerodynamicist with 40 years of experience in this field is saying.

[MrGapes]

Kyle released his vid

[Vanja #66]

It's very brave, especially where Formula 1 is concerned, to say where the air flows and how it doesn't. In fact, Willem Toet, long-time chief aerodynamicist of teams like Benetton, Ferrari, BAR, BMW and Sauber said just a few days ago in a public lecture at the University of Bolton (available on youtube) that it is complete nonsense what is constantly said, namely that F1 teams try to seal the underbody completely. That's not what F1 teams do, not at all. Lateral expansion is actually something that is used to create more downforce. So what this space engineer is saying actually makes a lot of sense and is exactly in line with what an F1 aerodynamicist with 40 years of experience in this field is saying.

Wait, how did people get to think about "sealing" as actual sealing? I always understood the term came from desire to seal the air (which is usually dirty front tyre wake) from getting in, not literally seal any lateral flow.

When we talk about sealing and strong vortices, we talk about structures that speed-up the airflow in front of edges. Stronger vortices bring the pressure further down, that's what the idea is.

[johnny comelately]

Kyle released his vid

Managing to stay awake I saw Kyle's comment about the extra cooling louvres, is that because there will be more cooling required from the higher electrical power this year?

[Andi76]

It's very brave, especially where Formula 1 is concerned, to say where the air flows and how it doesn't. In fact, Willem Toet, long-time chief aerodynamicist of teams like Benetton, Ferrari, BAR, BMW and Sauber said just a few days ago in a public lecture at the University of Bolton (available on youtube) that it is complete nonsense what is constantly said, namely that F1 teams try to seal the underbody completely. That's not what F1 teams do, not at all. Lateral expansion is actually something that is used to create more downforce. So what this space engineer is saying actually makes a lot of sense and is exactly in line with what an F1 aerodynamicist with 40 years of experience in this field is saying.

Wait, how did people get to think about "sealing" as actual sealing? I always understood the term came from desire to seal the air (which is usually dirty front tyre wake) from getting in, not literally seal any lateral flow.

When we talk about sealing and strong vortices, we talk about structures that speed-up the airflow in front of edges. Stronger vortices bring the pressure further down, that's what the idea is.

I think this is because the mainstream F1 media constantly explains it this way. If you look and listen to them, they almost always talk about sealing the underbody against air from the sides. Here it is never said that you can also let air in from the side to assist the underbody flow or something from lateral expansion. I think that's why this is usually understood to mean that the underbody should be completely sealed. At least that's how many fans understands the media's explanations.And Willem Toet obviously understands the explanations of the mainstream F1 media in exactly the same way. You only have to look at the 2022 declarations, where it was constantly said that the sealing that was done by sliding skirts is now achieved aerodynamically. Of course, most people then understand it that way, because that is exactly what is implied and said with examples like that by the mainstream F1 Media.

[FDD]

This space engineer says the floor edge is used as a lateral diffuser and it’s very dangerous that alfa romeo is showing this to everyone

The car creates the downforce by sucking the air out from the floor and creating lateral venturi tunnels

It is just a mock up for the looks , flow doesn't even move in that direction properly at that point of the car. The channel is not credible

It's very brave, especially where Formula 1 is concerned, to say where the air flows and how it doesn't. In fact, Willem Toet, long-time chief aerodynamicist of teams like Benetton, Ferrari, BAR, BMW and Sauber said just a few days ago in a public lecture at the University of Bolton (available on youtube) that it is complete nonsense what is constantly said, namely that F1 teams try to seal the underbody completely. That's not what F1 teams do, not at all. Lateral expansion is actually something that is used to create more downforce. So what this space engineer is saying actually makes a lot of sense and is exactly in line with what an F1 aerodynamicist with 40 years of experience in this field is saying.

Andi, please send me the link from Willem Toet here or on sime973@gmail.com
Thank you

[FDD]

It's very brave, especially where Formula 1 is concerned, to say where the air flows and how it doesn't. In fact, Willem Toet, long-time chief aerodynamicist of teams like Benetton, Ferrari, BAR, BMW and Sauber said just a few days ago in a public lecture at the University of Bolton (available on youtube) that it is complete nonsense what is constantly said, namely that F1 teams try to seal the underbody completely. That's not what F1 teams do, not at all. Lateral expansion is actually something that is used to create more downforce. So what this space engineer is saying actually makes a lot of sense and is exactly in line with what an F1 aerodynamicist with 40 years of experience in this field is saying.

Wait, how did people get to think about "sealing" as actual sealing? I always understood the term came from desire to seal the air (which is usually dirty front tyre wake) from getting in, not literally seal any lateral flow.

When we talk about sealing and strong vortices, we talk about structures that speed-up the airflow in front of edges. Stronger vortices bring the pressure further down, that's what the idea is.

I was watching this video yesterday...
So I expected some explanation's from aero experts here additionally to what Alberto Aimar explained in the "Formula 1 garage".
"Wait, how did people get to think about "sealing" as actual sealing?" We are not aero experts
All credits go to You and Andi76, for further elaboration of the "sealing".
Thank you very much