McLaren MP4-26 Mercedes

[volarchico]

Is that group of small turning features between the sidepod and the large turning vane and in the floor new? I hadn't noticed those before.

And For Morteza, that is a pitot rake, and it measures the pressure at each of the probe locations, giving spatial details of the pressure distribution behind the tire.

[Gui59]

The exaust are there, just in front of the side pods, we can clearly see the vertical separator!!

[dimensi]

Is that group of small turning features between the sidepod and the large turning vane and in the floor new? I hadn't noticed those before.

nope ... that is a tape, they seal the sensor cable right there ...

[Gui59]

Can't post a picture to show you exactly but I'm 110% confident it's there, we can clearly see a bulb going inside the sidepods. They don't blow under & over the floor, only over right behind the gurney flap.

[MikeFromCanada]

Claimed to be from this morning but Button hasn't drove. Maybe just movement in the pitlane?

[volarchico]

nope ... that is a tape, they seal the sensor cable right there ...

Ah, so it is! My eyes were playing tricks on me. Thanks.

[Marco Alves]

[volarchico]

That must be their new exhaust solution...routing it up the endplates!

[Gui59]

+1

Is there a way to post a picture, I would have shown you what I'm speaking about.

[wesley123]

By the way, check the camara position on that photo, it is pretty low

[zgred]

[MikeFromCanada]

+1

Is there a way to post a picture, I would have shown you what I'm speaking about.

You have to upload your picture (if it's not online) to a hosting site (Flickr, photobucket, etc.) and then copy the url link to the photo and paste it into a post here between the tags [img]POST%20LINK%20HERE[/img]

[Tim.Wright]

Flow Jizzualisation...

[Pierce89]

Still think that diffuser looks rather basic. I would imagine there should be a fair bit of development coming on it. You would hope.

By primitive I presume you're referring to there being one fence instead of two. But if you look at the picture with the flow vis paint on it you can see what I believe is a different concept for the diffuser (hopefully someone can correct me if I'm wrong).



The reason they have only one fence is that they appear to be using the larger central section to roll the air into a vortex. In the flow vis paint you can see the air move up the side of the diffuser an across the roof. My limited understanding is that the other diffuser designs are more about simply expanding the volume, with the more advanced designs also turning the air significantly outwards (presumably to interact with the wake from the rear wheels).

So not primitive, just different in concept.

At the back of the car, it would be beneeficial to reduce vortices because they create drag. But, teams sometimes start a vortex at the front to go along corner of the two planes under the floor. This can energize the air, and a vortex center is at reduced pressure so that also helps create downforce

[Gui59]

Got it finally: