Red Bull RB9 Renault

[tok-tokkie]

Ping Shelly (or anyone else who knows the answer),

Talking about the vortex shed by aircraft wings. How long does that vortex persist? When an aircraft is trailing the vortex so the air vapor condenses & we can see it - those vapor trails are massively long. Does the vortex persist to the end of the vapor trail or does it die out long before that & we are just seeing the vapor without there being a vortex for the full length.

I ask this because I assumed the vortex died out long before the end of the vapor trail. Then I saw the Red Bull vortex and how strong, tight & unchanging down its length it is. I was surprised (& mightily impressed) by that. The Ferrari vortex just expanding and collapsing was what I had expected.

[turbof1]

That depends. I can't be sure about this, and my opinion on it is likely wrong, but my gut says the RB vortex gets "fed" throughout the bodywork, keeping it in perfect shape. The Ferrari vortex just gets shot into the open and due nothing being there to sustain the vortex, it collapses into a vapor trail.

On an airplane I assume due to higher speeds the vapor trail is longer, but planes don't use vortices on purposes, and have no reason to sustain those. It collapses, just like the vortices coming off a F1 rear wing.

[Owen.C93]

The Ferrari vortex just gets shot into the open and due nothing being there to sustain the vortex, it collapses into a vapor trail.

Doesn't look too bad here.

[H2H]

The RBR crew fired up the RB9 of Mark without any rev limiter. Plenty of noise, exhaust gas and heat produced =D>

Lots of interesting details there...

[tony77g]

Red Bull had lost a skin of carbon diffuser on the end of the race

[Matt Somers]

The RB9 Exhaust glowing as the team give the RS27 it's swansong and rev it to it's destruction

[stefan_]

I've seen the video of that. Beautiful.

[turbof1]

The Ferrari vortex just gets shot into the open and due nothing being there to sustain the vortex, it collapses into a vapor trail.

Doesn't look too bad here.
http://i.imgur.com/vqpPBG1.jpg

No it apperently doesn't look too bad at all, interesting. Still not as clean as the red bull, though. On edge of breaking up in the middle, and breaking up where you don't want it: near the exhaust. Lots of turbulent air there.

Question: A vortex breaking up produces more drag then a consistent, clean one, right?

[Owen.C93]

The Ferrari vortex just gets shot into the open and due nothing being there to sustain the vortex, it collapses into a vapor trail.

Doesn't look too bad here.
http://i.imgur.com/vqpPBG1.jpg

No it apperently doesn't look too bad at all, interesting. Still not as clean as the red bull, though. On edge of breaking up in the middle, and breaking up where you don't want it: near the exhaust. Lots of turbulent air there.

Question: A vortex breaking up produces more drag then a consistent, clean one, right?

Here's the Merc if you're interested as well. Hard to see through the spray but it looks like it gets sucked into the rear wheel floor gap just before it hits the tyre.



Caterham for a laugh. http://i.imgur.com/tCwNscJ.jpg

[Huntresa]

I've seen the video of that. Beautiful.

Do you have a link to that video ?

[Holm86]

I've seen the video of that. Beautiful.

Do you have a link to that video ?

[youtube]http://www.youtube.com/watch?v=cFUHbeIsOCI#t=10)[/youtube]

Apparently it hits 22.000 rpms as the rev limiter was removed.

[Manoah2u]

I've seen the video of that. Beautiful.

Do you have a link to that video ?

http://www.youtube.com/watch?v=cFUHbeIsOCI#t=10)

Apparently it hits 22.000 rpms as the rev limiter was removed.

would have loved to see that redbull doing a lap with the rev limiter removed just to see what time it could hit
on the track and just what that engine is capable of achieving without the rev rules. And offcourse, the sound
of it passing by on 22.000 revs on the straight. [-o<
never will know unfortunately, though.

[turbof1]

22,000 rpm is a huge amount for an engine that was hugely limited in development. If there was no engine freeze and no limit on the rpm, they would have raced that by now.

[henra]

http://www.youtube.com/watch?v=cFUHbeIsOCI#t=10)

Apparently it hits 22.000 rpms as the rev limiter was removed.

Seeing this vid makes one already sad when thinking about the new engine formula.
I have the distinct feeling I will miss these beasts.
Who would have thought that when they went down to those tiny V8s?

And then I have to give my Salute to the RB9. =D>
Being a Tech admirer I have to admit I will also miss it.

[djos]

I still miss the 900hp v10's and tires designed to F1 standards - Webber was smart to leave F1 for the WEC, at least they still race on real racing tires designed to be the best possible tires!