Alfa Romeo C43

[FW17]

Maybe the Alfa Romeo floor is designed to pull more air from above the floor like in Porsche group c cars while the outwash from front of the floor seals the edge of the throat.

[Vanja #66]

Look at what Porsche did to the 919 prototype, once they were free of regulations:

Exactly - free of regulations. Mechanical seals are second to none, you turn your flow from 3D to almost 2D and you reduce the "waste" of 3D flow.

With these F1 cars, no skirts are allowed, so you need to maximise what you have. If inwash is allowed, you'll likely pick up some front tyre wake and diffuser performance is out the window. So you "seal" with forced outwash, which is already induced by frontal vanes. With outwash, you can now sculpt the floor edges to benefit from edge-vortex-induced low pressure and generate some downforce. Then we also have the flow changing with varying ride height, so edges are crucial there too.

It's true you are maybe wasting some energy with lateral expansion before diffuser, however - there is also some amount of air sucked into diffuser between rear tyres and diffuser fence. Teams even make a cut to diffuser fence to allow more air to get in. I think this is an area where RB was taking extra care with their downwashing and wide sidepods. With that design, you are also pushing the air into that zone on purpose - air that's not compromised by front tyre wake.

[Stu]

Maybe the Alfa Romeo floor is designed to pull more air from above the floor like in Porsche group c cars while the outwash from front of the floor seals the edge of the throat.

https://encrypted-tbn0.gstatic.com/imag ... w&usqp=CAU

This is essentially the function of the floor cutouts as seen on the Alpine & RedBull (and others, probably) last year. Except they featured an exit from the front floor, a carefully shaped ‘winglet’ and an inlet to the rear floor. The winglet serving to create/harness the vortex flow from the outlet; the inlet ‘pulling’ airflow from the upper floor surface.
This worked in conjunction with the ‘skate’ floor-edge wing acting as a strake.
You get more work out of the air from the outlet as it is re-energised by the vortex (which both ‘seals’ the floor edge and the inlet, the air going into the inlet is already very energised. This is most likely’boosted’ by careful positioning of the end of the undercut.
It’s very clever!!!

[Andi76]

Maybe the Alfa Romeo floor is designed to pull more air from above the floor like in Porsche group c cars while the outwash from front of the floor seals the edge of the throat.

https://encrypted-tbn0.gstatic.com/imag ... w&usqp=CAU

What Joe Katz described here can indeed be the idea behind it. But a lot will depend on the vector field of the vortex itself if it will assist the underbody flow or not. What i have experienced is a specific ride height must be maintained to make these vortices work as this affects the shape. (their completely new suspension could be in relation to that and an indicator that they are using it). The lower the ride height an elliptical vortex is formed and the vortex actually flattens which actually changes the vector field of the incoming flow of the underbody. Also the diffuser flow is actually very complex as it is 3d in nature and the diffusers now expand in the vertical direction which lowers the suction on the floor. So this vortex has less to do with it now but the new regulations have raised the edges so it will eventually come into play and Alfa may make use of it, which i think would be really awesome.

[FW17]

Will also be interesting to see if teams are able to intentionally stall the diffuser on the straights lake they were able to do with the previous flat floor rules.

[deadhead]

Here they say that it has less/more compact cooling



(you can do auto-translate to English on the web)

Kyle here, who I trust more, says that this car has an enormous amount of cooling.



who right?

edit. already discussed on the previous page, sorry

[BlueCheetah66]

Here they say that it has less/more compact cooling



(you can do auto-translate to English on the web)

Kyle here, who I trust more, says that this car has an enormous amount of cooling.



who right?

edit. already discussed on the previous page, sorry

He did literally say that it was likely a high cooling setup for the tracks with more demand

[EJ22B]

Here they say that it has less/more compact cooling



(you can do auto-translate to English on the web)


Kyle here, who I trust more, says that this car has an enormous amount of cooling.



who right?

edit. already discussed on the previous page, sorry

Power Unit packaging is something Sauber isn't good at compared to the other Ferrari customer Haas. Sauber has never packaged their engine cover as tight as Haas have managed to do.

Similarly, Williams isn't good at packaging the Merc power unit compared to other Merc customers like Mclaren and Aston.

It's probably something to do the restrictions created by their existing facilities and budget.

[Venturiation]

Here they say that it has less/more compact cooling



(you can do auto-translate to English on the web)


Kyle here, who I trust more, says that this car has an enormous amount of cooling.



who right?

edit. already discussed on the previous page, sorry

Power Unit packaging is something Sauber isn't good at compared to the other Ferrari customer Haas. Sauber has never packaged their engine cover as tight as Haas have managed to do.

Similarly, Williams isn't good at packaging the Merc power unit compared to other Merc customers like Mclaren and Aston.

It's probably something to do the restrictions created by their existing facilities and budget.

So that’s why those teams have more engine problems and DNFs?

[Saykas]

[F1Krof]

via AMUS -> floor definitely looks different to the renders.

[Vanja #66]

So the car on presentation stage was just for later auction and was actually nowhere near the real thing. Renders were close, but different floor edges.

I really like how C43 looks, hope it runs well.

[Venturiation]

https://pbs.twimg.com/media/FomTRDHWcAI ... me=900x900

via AMUS -> floor definitely looks different to the renders.

That Front wing

[Gridlock]

[zioture]