Red Bull RB8 Renault

[beelsebob]

So... I engaged my adian newey style air flow visualisation mode ... Here's a more detailed diagram of what I'd expect than before... Can anyone suggest any of the flow lines that they think don't meat their theory of what's going on?

[Adrian Newby]

So... I engaged my adian newey style air flow visualisation mode ... Here's a more detailed diagram of what I'd expect than before... Can anyone suggest any of the flow lines that they think don't meat their theory of what's going on?

[img]http://f.cl.ly/items/2G3T3T3n0u3N333Q0B ... ow.png[img]

I like it.

[snoop1050]

So... I engaged my adian newey style air flow visualisation mode ... Here's a more detailed diagram of what I'd expect than before... Can anyone suggest any of the flow lines that they think don't meat their theory of what's going on?

based on the mercedes similar exhaust positioning and the scorched paint we saw on their car i recken the exhaust spread is far greater than people imagine.

[Shakeman]

So... I engaged my adian newey style air flow visualisation mode ... Here's a more detailed diagram of what I'd expect than before... Can anyone suggest any of the flow lines that they think don't meat their theory of what's going on?

Why would the yellow and light green air be drawn into the tunnel?

Doesn't seem to be the the path of least resistance?

[GrizzleBoy]

So... I engaged my adian newey style air flow visualisation mode ... Here's a more detailed diagram of what I'd expect than before... Can anyone suggest any of the flow lines that they think don't meat their theory of what's going on?

I still dont see how you think the exhaust gases are going to take such a drastic/immediate change of direction and why are you ignoring any influence from the green line coming around the side of the sidepod or any of the air on the top of the sidepod?

You have lines directly above and below you exhaust gas line near the exit channel that blow in a direction closer to my proposition (aka just straight back), yet you ignore the closest exterior influences and just assume that the exhaust gases will just drop downwards?

So... I engaged my adian newey style air flow visualisation mode ... Here's a more detailed diagram of what I'd expect than before... Can anyone suggest any of the flow lines that they think don't meat their theory of what's going on?

based on the mercedes similar exhaust positioning and the scorched paint we saw on their car i recken the exhaust spread is far greater than people imagine.

Not exactly the most refined example, but I'd agree with this a lot more than the super focused channels of air people are proposing.

[OO7]

What's the corriander effect?

A play on words ...

The question is; how much thyme would you need to fully optimise the corriander effect?

That's a difficult question to answer. You'll have to run it parsley.

[Adrian Newby]

So... I engaged my adian newey style air flow visualisation mode ... Here's a more detailed diagram of what I'd expect than before... Can anyone suggest any of the flow lines that they think don't meat their theory of what's going on?

I still dont see how you think the exhaust gases are going to take such a drastic/immediate change of direction and why are you ignoring any influence from the green line coming around the side of the sidepod or any of the air on the top of the sidepod?

The hole under the bridge takes much of that side air (like the green line) away, though not all of it. I think the intent is to leave room for the exhaust, which then flows along the side of the bridge. The exhaust channel was obviously put there for at least some of the exhaust to flow along that path. I think more will flow along that pat at lower speeds (helping to seal the diffuser), and less at higher speeds (resulting in less seal->downforce->drag).

[GrizzleBoy]

So... I engaged my adian newey style air flow visualisation mode ... Here's a more detailed diagram of what I'd expect than before... Can anyone suggest any of the flow lines that they think don't meat their theory of what's going on?

I still dont see how you think the exhaust gases are going to take such a drastic/immediate change of direction and why are you ignoring any influence from the green line coming around the side of the sidepod or any of the air on the top of the sidepod?

The hole under the bridge takes much of that side air (like the green line) away, though not all of it. I think the intent is to leave room for the exhaust, which then flows along the side of the bridge. The exhaust channel was obviously put there for at least some of the exhaust to flow along that path. I think more will flow along that pat at lower speeds (helping to seal the diffuser), and less at higher speeds (resulting in less seal->downforce->drag).

There's still the fact that you're completely ignoring any other influence of air moving around the car.

You have the exhaust air cutting across other airflows and totally ignoring other airflows around it.

The light blue one running directly over the exhaust channel for instance. THat would drag the exhaust gases upwards along the top of the rear floor area.

Then there's the green air flow that flows along the side of the sidepid that you have meeting up with the aforementioned blue line, yet the exhaust gases just ignore it in your example and just head straight for the inner edge of the wheel for some reason, cutting across multiple other aiflows at angles.

The exhaust gases will be carried by airflow around the car, there's not point showing air flowing around the car in a certain direction and then drawing the exhaust gases just going "wherever" and ignoring the airflows around it.

You even have airflows cutting across airflows that seemingly have no effect on each other near the exhaust channel area.

[Adrian Newby]

So... I engaged my adian newey style air flow visualisation mode ... Here's a more detailed diagram of what I'd expect than before... Can anyone suggest any of the flow lines that they think don't meat their theory of what's going on?

based on the mercedes similar exhaust positioning and the scorched paint we saw on their car i recken the exhaust spread is far greater than people imagine.

The Mercedes exhaust wasn't designed for the same effect, and the scorch marks would be over the entire range of velocities.

Also, the exhaust is not going to be a "super focused" red line, there is no way it can be. That is just for illustration purposes. But, at lower speeds, more of the flow, in general, will spill over the sides. At higher speeds, more of the flow will go straight back, in general. Sound reasonable?

This still won't be anywhere near as effective as last year's EBDs, but every little bit helps, right?

[dren]

The air along the exhaust path from the sidepod is relatively straight back. The only air being curved around is the air from the undercut, which is out of the exhaust path. The exhaust will get the most interaction from the air flowing over the top of the sidepods, forcing it down, hence the downwash.

[gandharva]

Here is my theory... Could it be that this tunnel works like a chimney?

The exhaust gases flow down the sidepod just over the rear end of the tunnel creating an area of low pressure and thus sucking more air through the tunnel. This could lead to more air on top of the floor plate which could be used to create downforce on e.g. the lower rear wing.

Without the tunnel, I think the exhaust gases would create some sort of barrier and this would lead to less air that could get routet in the direction of the rear wing.

Some shitty picture to "proof" my theory. XD

[Adrian Newby]

I still dont see how you think the exhaust gases are going to take such a drastic/immediate change of direction and why are you ignoring any influence from the green line coming around the side of the sidepod or any of the air on the top of the sidepod?

The hole under the bridge takes much of that side air (like the green line) away, though not all of it. I think the intent is to leave room for the exhaust, which then flows along the side of the bridge. The exhaust channel was obviously put there for at least some of the exhaust to flow along that path. I think more will flow along that pat at lower speeds (helping to seal the diffuser), and less at higher speeds (resulting in less seal->downforce->drag).

There's still the fact that you're completely ignoring any other influence of air moving around the car.

You have the exhaust air cutting across other airflows and totally ignoring other airflows around it.

The light blue one running directly over the exhaust channel for instance. THat would drag the exhaust gases upwards along the top of the rear floor area.

Then there's the green air flow that flows along the side of the sidepid that you have meeting up with the aforementioned blue line, yet the exhaust gases just ignore it in your example and just head straight for the inner edge of the wheel for some reason, cutting across multiple other aiflows at angles.

The exhaust gases will be carried by airflow around the car, there's not point showing air flowing around the car in a certain direction and then drawing the exhaust gases just going "wherever" and ignoring the airflows around it.

You even have airflows cutting across airflows that seemingly have no effect on each other near the exhaust channel area.

I think the third line from the bottom (greenish) is probably wrong, and it will get pushed down by the blueish line above it, following all the other streams. Then there is nothing cutting across anything. The exhaust follows (and keeps from getting pushed inward by) the side of the bridge all the way/almost all the way to the floor. At that point, much of the air that was outside pushing in is now inside pushing out (thanks to going under the bridge) - leading the exhaust gasses right where Adrian Newey wanted them.

[shelly]

@gandharva: I think that is the general consensus at the moment

[GrizzleBoy]

Here is my theory... Could it be that this tunnel works like a chimney?

The exhaust gases flow down the sidepod just over the rear end of the tunnel creating an area of low pressure and thus sucking more air through the tunnel. This could lead to more air on top of the floor plate which could be used to create downforce on e.g. the lower rear wing.

Without the tunnel, I think the exhaust gases would create some sort of barrier and this would lead to less air that could get routet in the direction of the rear wing.

Some shitty picture to "proof" my theory. XD

[img]http://www.abload.de/img/testyijsp.jpg[img]

This is what I think and the only type of example I can take seriously in terms of exhaust gas movement.

[Leon]