Red Bull RB8 Renault

[hardingfv32]

May I assume that you think the flow over the top of the side pod is guiding the exhaust flow downward? If so why wouldn't the flow around the side of the side pod be just as affective at guiding the flow toward the center of the car? There is no reason to expect the two flows to be of equal strength. It is very easy to 'see'.

Brian

[bhall]

Even more effective would be placing the exhausts further aft and inboard, but they didn't do that. Why?

(This has been discussed recently, and I'm pretty sure everything's still there to be read.)

[Gridlock]

Can we not apply some objectivity here?

What would a sealed diffuser result in? Greater rake? A heat-resistant material used for the diffuser or floor? Etc

We have plenty of pre- and post-exhaust change pictures, and even some video.

There's also form: EBDs were banned except for a 5cm allowed exit in 2011. RB went straight for this 5cm and retained EBD effects. In 2012 exhaust are on top, pointed upwards but still exit into airflow that interacts with the diffuser given the right conditioning.

Sod CFD diagrams, the default Occams razor position is that RB will still be trying to blow the diffuser on their evolution of a double-WC car. Provide data or quotes suggesting their design objectives have changed, or accept that it does what common sense tells you it does.

15 pages of exhaust gas analysis just lets the bloody big 'my toes are a bit chilly' letterbox escape study, as far as I'm concerned. Where's the NCIS enhancement of that pit lane spy shot!?

[CMSMJ1]

Such a pointless load of armchair crap I have not seen in a long time.

You guys need a race to argue about!



This is a lovely car, we'll get some decent pics of it in action soon enough and if we are lucky there will be some wet running and all this bad tempered posting can be put away?

[bhall]

This is a technical forum, so we're talking about technical ---.

Should we discuss drivers instead? ('Cause those conversations are never contentious.)

[Websta]

Such a pointless load of armchair crap I have not seen in a long time.

The point of the thread is to discuss the technical aspects of the car, so how dare they argue and speculate over the only interesting aspects of the design. It's not even wild speculation as the ideas discussed here have some pretty substantial explanations.

[Nando]

Do you mean the so-called "bridge/tunnel" when you say sidepod intake?

Yea sorry forgot the right term
What is it sole purpose? Help the exhaust or add some of the open space that was lost due to the slightly longer sidepod?

[Dragonfly]

That bridge solution itself places a question why they took all the effort for such a change. When I saw it for the first time my thought was they want to swap the streams so that the exhaust gas one goes outside.

[bhall]

I contend that the "bridge" - also known as an extremely undercut sidepod - shields the exhaust flow from the air flowing around the sidepods. Otherwise, you wouldn't be able to route the exhaust anywhere, given its location, much less to the sides of the diffuser.

[kilcoo316]

The exhaust does point outward: 10 degrees outward (and complies with another one of those regulations things you don't know or care about). The channel then guides it even farther outward.

The exhaust itself is not the same as the exhaust ducting in the sidepod.


Look at it again; and not using that vertical photo that only shows the sidepod cutout/ducting.

[kilcoo316]

If you line up the burned area on the top photo with that same area on the bottom photo you will see that they are directly in line with the diffuser sealing area.

It clearly flows along the corner of the ramp or inboard.

Line that up and its well inboard of that strake upstream the wheel = no vortex induced from the exhaust.


What is more likely is RBR, like McLaren, are trying to dilute the effect of the exhaust using the cross flow - so it f**ks up any particular part of the aft end less.

The majority of the exhaust does not "flow down the ramp", it flows over the side.

I do not know how on earth you are seeing that!

[kilcoo316]

Such a pointless load of armchair crap I have not seen in a long time.

It keeps us off the streets

[raymondu999]

I contend that the "bridge" - also known as an extremely undercut sidepod

I smell a much needed acronym coming up. EUS, anyone?

[kilcoo316]

Lets just call it the channel tunnel.

Much better than (yet) another acronym!

[raymondu999]

The chunnel it is! So. What about this chunnel?