Red Bull RB8 Renault

A place to discuss the characteristics of the cars in Formula One, both current as well as historical. Laptimes, driver worshipping and team chatter does not belong here.
User avatar
Kiril Varbanov
147
Joined: Sun Feb 05, 2012 2:00 pm
Location: Bulgaria, Sofia

Re: Red Bull RB8 Renault

Post

Lovely detail of the exhaust and the rear (do I spot a more humpy surface?)

Image

bhall
bhall
244
Joined: Tue Feb 28, 2006 8:26 pm

Re: Red Bull RB8 Renault

Post

Crucial_Xtreme wrote:Nothing in what you did shows what is sticking out the back of the exhaust. To me, it looks like all 4 headers from the engine come from below so why would the be a T-joint in the exhaust pipes? Of course I could be wrong & so could others but I'll go with Scarbs thoughts as well as my own. :)

[...]

If you can explain what this is, I might change my mind, but the exhaust is exiting the other way & the 4 pipes come from the bottom.
It was a complete misunderstanding on my part. I thought you guys were talking about the part of the exhaust I've indicated with the blue arrow. That's why I was scratching my head.

The actual part in question, which I've indicated with red arrows, is definitely a Helmholtz resonator. You can even see how it extends up and behind the radiator.

Image
(Click to enlarge)

Crucial_Xtreme
Crucial_Xtreme
404
Joined: Sat Oct 15, 2011 11:13 pm
Location: Charlotte

Re: Red Bull RB8 Renault

Post

bhallg2k wrote: It was a complete misunderstanding on my part. I thought you guys were talking about the part of the exhaust I've indicated with the blue arrow. That's why I was scratching my head.

The actual part in question, which I've indicated with red arrows, is definitely a Helmholtz resonator. You can even see how it extends up and behind the radiator.


(Click to enlarge)
yeah I figured you weren't sure exactly what we were talking about, which is why I did the arrow thing. No worries my friend. I actually didn't notice the resonator further up by your second arrow.. :lol:

Edit: new pics of the floor today

Image

gato azul
gato azul
70
Joined: Thu Feb 02, 2012 1:39 pm

Re: Red Bull RB8 Renault

Post

Image
Image

User avatar
PlatinumZealot
430
Joined: Thu Jun 12, 2008 2:45 am

Re: Red Bull RB8 Renault

Post

Crucial_Xtreme wrote:
bhallg2k wrote: It was a complete misunderstanding on my part. I thought you guys were talking about the part of the exhaust I've indicated with the blue arrow. That's why I was scratching my head.

The actual part in question, which I've indicated with red arrows, is definitely a Helmholtz resonator. You can even see how it extends up and behind the radiator.


(Click to enlarge)
yeah I figured you weren't sure exactly what we were talking about, which is why I did the arrow thing. No worries my friend. I actually didn't notice the resonator further up by your second arrow.. :lol:

Edit: new pics of the floor today

Image
This is the give away picture. It shows that the purpose of the tunnel and guide vanes inside it is to help give an even distribution of air-flow through the second set of 4 inch tall guide vanes and finally a even flow over the top of the diffuser. I believe this is to give better pressure characteristics at the diffuser exit and possible better influence towards vortex formation at the sides. Very good Idea. But It must be said that if the ramp was not there, you wouldn't need that foremost set of guide vanes... the second set would have worked OK by itself.
✊If we break that fundamental principle of sporting fairness and authenticity of the sport, then suddenly the stopwatch doesn’t become relevant anymore because we are exposed to random decision making, and you fall out of love with it.✊

🕸️ Web weaver Vs Spider 2022🕷️

User avatar
Kiril Varbanov
147
Joined: Sun Feb 05, 2012 2:00 pm
Location: Bulgaria, Sofia

Re: Red Bull RB8 Renault

Post

Am I wrong with this comparison? I.E. I'm not totally sure whether VET and WEB used the same exhaust.
Anyway, my humble contribution to their continuing exhaust iterations:

Image

marcush.
marcush.
158
Joined: Tue Mar 09, 2004 3:55 pm

Re: Red Bull RB8 Renault

Post

very good spot...the whole area is alot more sculpted and rounded in the inlet area now...one has to imagine that you need a very good surfacing guy +someone who does all the molds to produce those parts....staggering effort.. =D>
Last edited by marcush. on Fri Jul 06, 2012 8:41 pm, edited 1 time in total.

User avatar
Gridlock
30
Joined: Fri Jan 27, 2012 3:14 am

Re: Red Bull RB8 Renault

Post

Such obvious exhaust blowing shenanigans in FP1, judging by the soundtrack. Very raspy and level through corners, noticeably different to eg the Caterham or Lotuses.
#58

bhall
bhall
244
Joined: Tue Feb 28, 2006 8:26 pm

Re: Red Bull RB8 Renault

Post

n smikle wrote:[Image]

This is the give away picture. It shows that the purpose of the tunnel and guide vanes inside it is to help give an even distribution of air-flow through the second set of 4 inch tall guide vanes and finally a even flow over the top of the diffuser. I believe this is to give better pressure characteristics at the diffuser exit and possible better influence towards vortex formation at the sides. Very good Idea. But It must be said that if the ramp was not there, you wouldn't need that foremost set of guide vanes... the second set would have worked OK by itself.
Actually, I think the tunnel is still mostly about keeping the exhaust plume separate from the air flow around the sidepods. The guide vanes at the back aren't so much guide vanes as they are diffuser strakes that extract the air flow through the tunnel, because they initially had problems with it being choked by too much air.

In essence, they have a very legal and literal double diffuser: the normal one below the floor and the new one on top of the floor.

Owen.C93
Owen.C93
147
Joined: Sat Jul 24, 2010 4:52 pm

Re: Red Bull RB8 Renault

Post

Tunnel exits are both behind those vanes so I'm not sure what you mean by that.
Gridlock wrote:Such obvious exhaust blowing shenanigans in FP1, judging by the soundtrack. Very raspy and level through corners, noticeably different to eg the Caterham or Lotuses.
Caterham was much louder than RB. RB8 was pretty similar to the McLaren maybe about the same as the Saubers.
Motorsport Graduate in search of team experience ;)

bhall
bhall
244
Joined: Tue Feb 28, 2006 8:26 pm

Re: Red Bull RB8 Renault

Post

Are the areas I've denoted below with red dots not tunnel exits?

Something else caught my eye. Does the end of the beam wing look to anyone like it has a sort of NACA duct (inset)?

Image
(Click to enlarge)

It very much seems like the rear end of this car is keeping a lot of secrets.

Matt Somers
Matt Somers
179
Joined: Thu Mar 19, 2009 10:33 am

Re: Red Bull RB8 Renault

Post

bhallg2k wrote:Are the areas I've denoted below with red dots not tunnel exits?

Something else caught my eye. Does the end of the beam wing look to anyone like it has a sort of NACA duct (inset)?

Image
(Click to enlarge)

It very much seems like the rear end of this car is keeping a lot of secrets.
Yes I have a better picture of that area somewhere, I'll post it in a moment. It definitely has some holes in that section....
Catch me on Twitter https://twitter.com/SomersF1 or the blog http://www.SomersF1.co.uk
I tweet tech images for Sutton Images

Matt Somers
Matt Somers
179
Joined: Thu Mar 19, 2009 10:33 am

Re: Red Bull RB8 Renault

Post

Image
Catch me on Twitter https://twitter.com/SomersF1 or the blog http://www.SomersF1.co.uk
I tweet tech images for Sutton Images

bhall
bhall
244
Joined: Tue Feb 28, 2006 8:26 pm

Re: Red Bull RB8 Renault

Post

OK. Thanks. I thought for a moment they might be blowing the beam wing. But it appears as though they're just taking advantage of the loophole that allows them to deem as part of the end plate that part of the wing. Ferrari did it last year with their rear wing.

User avatar
N12ck
11
Joined: Sun Dec 19, 2010 6:10 pm

Re: Red Bull RB8 Renault

Post

From listening to the Redbull live at silverstone (national pit straight) and to the caterham they are deffinatley using some overrun, it sounds like last years car.
Budding F1 Engineer