Red Bull RB8 Renault

[aral]

@ Kilcoo:


The exhaust comes out on the corner of the sidepod. It is obvious that at cornering speeds it is aimed at the notch in front of the gap for the rear tire.

It is equally obvious that the exhaust will not make it there at higher speeds due to being blown farther aft. And that it will instead be blown on top of the bridge instead of alongside it.

This is your proof. I am not making this stuff up. It is in this photo for all to see.

Of course, there is no one so blind as those who will not see...

Are you not being a bit dismissive of those who do not agree with you? The photo is not of the latest iteration of the car, as it appeared in the last two days of testing. Red Bull were not going to show their ideas until as late as possible.

[Adrian Newby]

That diagram is what the flow looks like at higher speeds.

Look at where the exhaust is actually pointed in Rikhart's photo. Look at how that vane is rounded exactly to help get it there. There is no way they aren't trying to get that flow there at cornering speeds.

[kilcoo316]

Thank you Crucial.


Do you have a link to that?

[Crucial_Xtreme]

Thank you Crucial.


Do you have a link to that?

As good as I can do-->

[rayden]

@ Kilcoo:

Here ya go. Fantastic pic of the exhaust and the diffuser sealing area posted by Rikhart shows exactly where the exhaust comes out and where they intend for it to go:



The exhaust comes out on the corner of the sidepod. It is obvious that at cornering speeds it is aimed at the notch in front of the gap for the rear tire.

It is equally obvious that the exhaust will not make it there at higher speeds due to being blown farther aft. And that it will instead be blown on top of the bridge instead of alongside it.

This is your proof. I am not making this stuff up. It is in this photo for all to see.

Of course, there is no one so blind as those who will not see...

I agree with this.
brilliant photo.
Their intent seems obvious to my relatively untrained eye

[kilcoo316]

Look at where the exhaust is actually pointed in Rikhart's photo. Look at how that vane is rounded exactly to help get it there. There is no way they aren't trying to get that flow there at cornering speeds.

Ahh Newby, Newby, Newby...


If flow is coming from outboard to inboard (i.e. the flow around the side of the car) over that vane - what way do you think the vortex will roll-up over the top of it?


Now, extend that backwards to your diffuser. What direction is the flow at along the ground plane?

[Adrian Newby]

@ Kilcoo:


The exhaust comes out on the corner of the sidepod. It is obvious that at cornering speeds it is aimed at the notch in front of the gap for the rear tire.

It is equally obvious that the exhaust will not make it there at higher speeds due to being blown farther aft. And that it will instead be blown on top of the bridge instead of alongside it.

This is your proof. I am not making this stuff up. It is in this photo for all to see.

Of course, there is no one so blind as those who will not see...

Are you not being a bit dismissive of those who do not agree with you? The photo is not of the latest iteration of the car, as it appeared in the last two days of testing. Red Bull were not going to show their ideas until as late as possible.

I am only being dismissive to the extent that it is so obvious.

Also, whether it is the latest iteration is irrelevant. It is the version with the bridge/tunnel, which is what we have been talking about.

[Adrian Newby]

Look at where the exhaust is actually pointed in Rikhart's photo. Look at how that vane is rounded exactly to help get it there. There is no way they aren't trying to get that flow there at cornering speeds.

Ahh Newby, Newby, Newby...


If flow is coming from outboard to inboard (i.e. the flow around the side of the car) over that vane - what way do you think the vortex will roll-up over the top of it?


Now, extend that backwards to your diffuser. What direction is the flow at along the ground plane?

Ahh Kilcoo, Kilcoo, Kilcoo...

That is the function of the tunnel under the bridge.

[kilcoo316]

A good pic of the new setup in this gallery (3rd March):

http://www.formula1.com/gallery/testing/2012/715.html

[Far left column, top row and left column, top row]


More of the new:

http://f1.imgci.com/PICTURES/CMS/13600/13663.jpg

http://f1.imgci.com/PICTURES/CMS/13600/13661.jpg




A good pick of the original setup in this gallery (24th Feb):
http://www.formula1.com/gallery/testing/2012/712.html

[middle column, 5th row]

Another of the old:
http://f1.imgci.com/PICTURES/CMS/13600/13613.jpg

Note the existence of the curved vane upstream the rear wheel anyway in this photo

[kilcoo316]

That is the function of the tunnel under the bridge.

The flow under the tunnel runs over the diffuser centre section. Nowhere near the channel between diffuser and wheel.

[kilcoo316]

Anyone got ground level photos looking from alongside the cockpit into the diffuser (or similar)?


F1 photographers are f**king useless. (who wants 'dynamic' pics of the car testing on a winter day? - save that crap for Monaco in the sunshine)

[Adrian Newby]

That is the function of the tunnel under the bridge.

The flow under the tunnel runs over the diffuser centre section. Nowhere near the channel between diffuser and wheel.

The point is: the tunnel moves the outside air to the inside so that it doesn't interfere with the exhaust getting to the diffuser sealing area.

Air backing up/going around the front of the rear tire hits that vane sideways, and the vane directs that flow over the top of the exhaust flow that is sealing the diffuser.

[Crucial_Xtreme]

It seems to me at low speed the exhaust would indeed travel towards the edges of the floor by the rear tyre. I mean, there's a large strake inside of the tyre, I would assume to help keep flow in a general location. Plus the cut-out just ahead & beside the rear tyre looks like thats its intention as well.

And it seems that at high speed it would do exactly as Anderson figured, which I must say is something Neweby stated all along. But it's all guesswork.

[Adrian Newby]

It seems to me at low speed the exhaust would indeed travel towards the edges of the floor by the rear tyre. I mean, there's a large strake inside of the tyre, I would assume to help keep flow in a general location. Plus the cut-out just ahead & beside the rear tyre looks like thats its intention as well.

And it seems that at high speed it would do exactly as Anderson figured, which I must say is something Neweby stated all along. But it's all guesswork.

Yes! Thank you, that is what I have been trying to say. I am glad you see it.

I think it is interesting how Adrian Newey made the exhaust come out at the exact corner on the sidepod, right at the start of the bridge, where it will most likely either go down, alongside the sidepod, or more straight back, along the top of the sidepod. It acts like a splitter, with the direction the exhaust is intended to go depending on the speed of the airlow around it.

[FrukostScones]

http://www.autosport.com/news/report.php/id/97897