Ferrari SF-24

[scuderiabrandon]

https://www.youtube.com/watch?v=EYip_s6 ... l=FORMULA1
The outer strake/barge board is very wobly(right side, next to the tire), is it broken or is this intended?

either broken or oscillating (due to vibration from the tyre wake) & the shutter speed/frame rate are matched giving it a weird affect.

[FDD]

The carbon fiber weaving pattern of the rear wing DRS structure is different on the new picture. It is now horizontal on the round part of the structure around the exhaust and vertical on the vertical structure that goes up to the DRS actuator. Does this mean anything?

Usually, it does mean something. The weave, layup, direction etc will produce flex vs rigidity in different plane when altered like this.

It can bias the "deform" characteristic to different loading and resistance to torsion, flex and resonance.... that to different problems they are trying to correct (remember the really flappy "walking " vibrations they had) OR to produce movement in a controlled plane to their advantage.

True, but they may have "only" added or removed a layer externally. Usually contiguous layers have perpendicular fiber layouts.

The carbon fiber weaving pattern does same flexion in all directions.
Also there are several layers of carbon fiber, so if we even take the option of different flexion, who knows in which direction they put weaving pattern of lower layers.
They cut it to use material in best rational way.
Do not forget that it is sandwich material which include kevlar also and depending of the damage sometimes you can see kevlar fibers fluttering around.
The story about this was lunched by the journalists at the first place as they start the story about RB magic sidepods.

[Sevach]

https://www.youtube.com/watch?v=EYip_s6 ... l=FORMULA1
The outer strake/barge board is very wobly(right side, next to the tire), is it broken or is this intended?

either broken or oscillating (due to vibration from the tyre wake) & the shutter speed/frame rate are matched giving it a weird affect.

Still wobly during the GP.



Sainz Q3 lap, which i can't find right now, also shows similar movement.

[DoctorRadio]

[Sevach]

I wonder if what the RB 20 has now will become popular(it's a 2 element beam wing but with about the size and frontal area of a single element).

[ing.]

Best view of the floor inlet so far. Very subtle changes compared to SF23 Japan floor, there could be a bigger change coming in Imola.

https://cdn-8.motorsport.com/images/mgl ... etail.webp

SF23 (Qatar?)

https://pbs.twimg.com/media/F9dyqhvXoAA ... &name=orig

Do you think that each one of the vertical strakes is spinning up an under-floor, pressure-lowering vortex (like below) or just the most inboard strakes which have a sharp corner (vs. the outboard strakes with rounded leading edges)?

[FDD]

Best view of the floor inlet so far. Very subtle changes compared to SF23 Japan floor, there could be a bigger change coming in Imola.

https://cdn-8.motorsport.com/images/mgl ... etail.webp

SF23 (Qatar?)

https://pbs.twimg.com/media/F9dyqhvXoAA ... &name=orig

Do you think that each one of the vertical strakes is spinning up an under-floor, pressure-lowering vortex (like below) or just the most inboard strakes which have a sharp corner (vs. the outboard strakes with rounded leading edges)?

https://pbs.twimg.com/media/GJzbbaCWUAA-FTd.jpg

Think that this is a good one for your question
viewtopic.php?t=30734

[ing.]

Best view of the floor inlet so far. Very subtle changes compared to SF23 Japan floor, there could be a bigger change coming in Imola.

https://cdn-8.motorsport.com/images/mgl ... etail.webp

SF23 (Qatar?)

https://pbs.twimg.com/media/F9dyqhvXoAA ... &name=orig

Do you think that each one of the vertical strakes is spinning up an under-floor, pressure-lowering vortex (like below) or just the most inboard strakes which have a sharp corner (vs. the outboard strakes with rounded leading edges)?

https://pbs.twimg.com/media/GJzbbaCWUAA-FTd.jpg

Think that this is a good one for your question
viewtopic.php?t=30734

Thank you.

[Vanja #66]

Do you think that each one of the vertical strakes is spinning up an under-floor, pressure-lowering vortex (like below) or just the most inboard strakes which have a sharp corner (vs. the outboard strakes with rounded leading edges)?

https://pbs.twimg.com/media/GJzbbaCWUAA-FTd.jpg

It may depend a lot on the local floor roof profile on each car and it certainly depends a lot on strake geometry. On paper, every strake should shed at least one vortex, smaller or bigger. You'd expect they'd merge at one point past the inboard strake, since they are spinning in the same direction on the same side. Maximising this vorticity and suction it generates is one of the best ways to generate stable floor downforce in my view.

[deadhead]

Is there any downsides to this? If true of course

[Vanja #66]

Is there any downsides to this? If true of course

I'm not sure what they wanted to say, but the car had a bit higher overall DF level in Bahrain than Jeddah and Melbourne, as observed by single-piece beam wing used together with lower angle on the front wing. Two things they may have meant that are fairly accurate:

- car had good balance (DF level front/back) even with different wing levels or
- car has a lot of floor downforce and thus wing level is becoming less dominant in % of overall DF (this was quite well observed on RB19 last year, quite often opting to use low-level wing when other teams couldn't fathom it)

Either way, both very positive

[scuderiabrandon]

Is there any downsides to this? If true of course

I suspect the translation is a bit iffy. I think it's meant in a way that the balance doesn't shift as tremendously as it did last year, where the higher they went on the wing the more they suffered from understeer.

[FDD]

On paper, every strake should shed at least one vortex, smaller or bigger.

This can be not always the case in practice?

[scuderiabrandon]

On paper, every strake should shed at least one vortex, smaller or bigger.

This can be not always the case in practice?

At some point a strake will shed vorticity. As the car yaws through a corner the pressure difference between the two faces of the strake will cause a vortex to shed even if you aligned the strake in a way that has it not shed in a straightline but I don't know whether that would be desirable in the first place. I would say it's rather unlikely for floor fences not to shed vorticity.

[Vanja #66]

This can be not always the case in practice?

There are strake designs which are completely straight 90% of their length and then end up with a small outward flick. There can be a situation where there will only be a small vortex shed by that small flick, while the pressure is almost even between two sides in the straight part of it.

This only refers to 2nd and 3rd strake, the inner one is always shedding a big vortex.