Red Bull RB8 Renault

[Adrian Newby]

I feel like getting my packet of Crayola's out after seeing all these MS Paint Drawings !!

Surely the exhaust is only being used to create a low pressure area to influence the direction of airflow over the side pod.

Yep, Da Vinci it ain't! That, ahem, "masterpiece", was done with my finger on a laptop touchpad. I would have done better with crayons. A little better anyway...

[hardingfv32]

Assuming this is the RB8, there is no hole in the bulkhead for the nose vent. This bulkhead is exactly like the RB7. Note the location of the white caps in relation to the top of the bulkhead.

I think you would be hard pressed to demonstrate that they even redesigned the chassis for the RB8.

Brian

[Adrian Newby]

Assuming this is the RB8, there is no hole in the bulkhead for the nose vent. This bulkhead is exactly like the RB7. Note the location of the white caps in relation to the top of the bulkhead.

I think you would be hard pressed to demonstrate that they even redesigned the chassis for the RB8.

Brian

It's hard to tell much with that bar going across the top. Also, there is a bug/marbles(?) screen covering the hole (which has been shown in another photo), which would make it even less visible.

I have read that Newey pushed for the chassis height to remain the same, so teams would have to change the chassis as little as possible. So it is not surprising the RB8 chassis is very similar to the RB7 chassis.

[amouzouris]

Assuming this is the RB8, there is no hole in the bulkhead for the nose vent. This bulkhead is exactly like the RB7. Note the location of the white caps in relation to the top of the bulkhead.

I think you would be hard pressed to demonstrate that they even redesigned the chassis for the RB8.

Brian

it is the RB8 note the 3 colored stripes at the side of the nose...on the RB7 going from top to bottom it was red blue white... on the RB8 it is blue red white

[alogoc]

it's RB8 look at the side wing on sidepod!

[hardingfv32]

Latest calculations from '2012 Exhaust Blowing' thread have the exhaust flow velocity at 84 m/s @ 18000 RPM. This is at the exhaust tip. n smikle's simulation show the flow dropping rapidly to 30-40 m/s at the floor using a exhaust tip velocity of 190-210 m/s. If we adjust his numbers in a simple proportional ratio, reduce outlet flow from 210 to 84 m/s, how affective do you think the flow is going to be now?

At best your are adding a little something to the 70-40 m/s body flow in this region of the car. The flow over the body is in complete control of the exhaust flow by the time it reaches the floor. This assumes the exhaust can even get to the floor.

There could be a vortex formed by the body flow, but the exhaust is not going to be any help making it stronger.

Brian

[Adrian Newby]

No offense to n smikle et al, but I would rather go with Adrian Newey's calculations (whatever they may be). They obviously convinced him that blowing the diffuser was worth the effort.

[kilcoo316]

I still think you are still mis-reading the nozzle.

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

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

*brightened version of another image*


It is not pointed down. It doesn't go toward the vane in front of the rear wheel.


It *may* stretch the vortex from that vane, however I think it is more likely to run inboard of it. It'll spread out as it runs down along the roof/corner of the tunnel and run over the top of the section of the diffuser inboard of the brake 'vanes' but outboard of the diffuser centre section.

[hardingfv32]

No offense to n smikle et al, but I would rather go with Adrian Newey's calculations (whatever they may be). They obviously convinced him that blowing the diffuser was worth the effort.

You are going with 'Adrian Newby's' calculations which are all wrong. This is nothing indicating Newey has any hope of blowing the diffuser.

I have provided a simulation and a clear flow numbers that indicate the exhaust flow has no chance of reaching the diffuser, yet the CFD system in your head continues to say otherwise. You need new software.

Brian

[FakeAlonso]

GdS says RB found a loophole in the regulations for the RW F-Duct. You still think is a reflection?

[Adrian Newby]

I still think you are still mis-reading the nozzle.

It is not pointed down.

The nozzle is not pointed down because it is illegal to point it down, or even straight back: "From the side the exhaust must exit tailpipe-up and between 10 to 30 degrees from the reference plane."

Adrian Newey takes it from the minimum of 10 degrees up and channels it downward as much as possible.

[hardingfv32]

GdS says RB found a loophole in the regulations for the RW F-Duct. You still think is a reflection?

FakeAlonso, this is a technical forum. Such babble is going to need a little more explanation before it is remotely believable.

Just a very simple test for this babble: How do you propose the air flow makes its way to the rear wing?

Brian

[FakeAlonso]

Any idea what is this?

[FakeAlonso]

GdS says RB found a loophole in the regulations for the RW F-Duct. You still think is a reflection?

FakeAlonso, this is a technical forum. Such babble is going to need a little more explanation before it is remotely believable.

Just a very simple test for this babble: How do you propose the air flow makes its way to the rear wing?

Brian

Brian you need to ask Adrian Newey about that. The way RB covered the whole RW every time the drivers came in, makes me a bit suspicions.

[Adrian Newby]

Any idea what is this?

Curiouser and curiouser!