Red Bull RB9 Renault

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McMrocks
McMrocks
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Joined: 14 Apr 2012, 17:58

Re: Red Bull RB9 Renault

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l4mbch0ps wrote:
turbof1 wrote:Also notice the heat signature has this given shape, pattern. They have something intalled/integrating that is giving off heat.
Oil cooler - most of them run an oil/fluid cooler here, for COG purposes obviously.
I doubt there is a oil cooler in the 2cm high t-tray . Just my opinion, so it could be wrong.

The exlanaition with the friction causing heat is more plausible in my eyes. again i might be wrong.

I'd like to see the thermal image when the car leaves the pits. I guess we won't see much color then.

Just my 2 cents

And at the end a question about the thermal camera:

On all cars but especially on the McLaren we can see things reflecting on the bodywork. Does a thermal camera show reflection of objects?

Crucial_Xtreme
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Re: Red Bull RB9 Renault

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McMrocks wrote:
I doubt there is a oil cooler in the 2cm high t-tray . Just my opinion, so it could be wrong.

The exlanaition with the friction causing heat is more plausible in my eyes. again i might be wrong.

I'd like to see the thermal image when the car leaves the pits. I guess we won't see much color then.

Just my 2 cents

And at the end a question about the thermal camera:

On all cars but especially on the McLaren we can see things reflecting on the bodywork. Does a thermal camera show reflection of objects?
Agreed, no oil cooler in the t-tray. The t-trays tend to drag some on the track surface, this isn't uncommon it's just you can only have a certain amount wear on it.

I must say though I believe the thermal video from the FIA is a bit of a gimmick and not of the same level used by the teams. Could be wrong, JMO.

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turbof1
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Re: Red Bull RB9 Renault

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Crucial_Xtreme wrote: I must say though I believe the thermal video from the FIA is a bit of a gimmick and not of the same level used by the teams. Could be wrong, JMO.
True, but you still have a reference point: the tyre itself. We know how hot a tyre more or less runs. The T-tray seems to be having roughly the same temperature as the tyre itself. You have to be scraping the tray on the ground for quite a while to get that much heat in it.
#AeroFrodo

Crucial_Xtreme
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Re: Red Bull RB9 Renault

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turbof1 wrote: True, but you still have a reference point: the tyre itself. We know how hot a tyre more or less runs. The T-tray seems to be having roughly the same temperature as the tyre itself. You have to be scraping the tray on the ground for quite a while to get that much heat in it.
With the level of rake RB run it doesn't surprise me to be honest. When the DF really starts to kick in the rear of car should lower a bit which in turn should level out the car a little bit no? I haven't paid much attention to this so I'm not sure where on track the t-tray heat has been seen most.

RB do have a higher t-tray support failure rate than other teams IIRC. Interesting.

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turbof1
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Re: Red Bull RB9 Renault

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Crucial_Xtreme wrote:
turbof1 wrote: True, but you still have a reference point: the tyre itself. We know how hot a tyre more or less runs. The T-tray seems to be having roughly the same temperature as the tyre itself. You have to be scraping the tray on the ground for quite a while to get that much heat in it.
With the level of rake RB run it doesn't surprise me to be honest. When the DF really starts to kick in the rear of car should lower a bit which in turn should level out the car a little bit no? I haven't paid much attention to this so I'm not sure where on track the t-tray heat has been seen most.

RB do have a higher t-tray support failure rate than other teams IIRC. Interesting.
The camera only started to appear on a red bull since singapore (and was only the second race a heat camera was used on any car infact), so in other words I think only red bull will know how long it has been running that hot. What we do know is that every time that specific camera came on TV, it was showing the t-tray to be showing that heat signature.
#AeroFrodo

k.ko100v
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Re: Red Bull RB9 Renault

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This is interesting
Image

Saribro
Saribro
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Joined: 28 Jul 2006, 00:34

Re: Red Bull RB9 Renault

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McMrocks wrote:On all cars but especially on the McLaren we can see things reflecting on the bodywork. Does a thermal camera show reflection of objects?
Of course. Just like some materials reflect visible light better than other materials (mirror versus piece of cloth), the same goes for the infrared. It gets a little less intuitive, naturally, as a lot more materials actually emit their own light in these wavelengths around room temperature(1). For example, glass and water are no longer transparent in 7-13um IR, so don't bother trying to look out the window or to observe the lovely fish in your pond.

(1) -20 -> 120°C is a fairly standard thermal range for IR cameras in the wavelengths used here.

McMrocks
McMrocks
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Re: Red Bull RB9 Renault

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Saribro wrote:
McMrocks wrote:On all cars but especially on the McLaren we can see things reflecting on the bodywork. Does a thermal camera show reflection of objects?
Of course. Just like some materials reflect visible light better than other materials (mirror versus piece of cloth), the same goes for the infrared. It gets a little less intuitive, naturally, as a lot more materials actually emit their own light in these wavelengths around room temperature(1). For example, glass and water are no longer transparent in 7-13um IR, so don't bother trying to look out the window or to observe the lovely fish in your pond.

(1) -20 -> 120°C is a fairly standard thermal range for IR cameras in the wavelengths used here.
thank you for answering my question :)

I should have posted it in the correct thread. also thanks to hollus who gave the same answer via pm.

sorry for being very off-topic, back to topic

Hobbs04
Hobbs04
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Re: Red Bull RB9 Renault

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From fp3 in Monza

Notice dimples on t tray...

Hobbs04
Hobbs04
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Re: Red Bull RB9 Renault

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I've heard of carbon fiber that could change shape under electrical input... Anyone have more info on this? Is it legal?

Just my suspicions on why that t tray is so hot.

Hobbs04
Hobbs04
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Re: Red Bull RB9 Renault

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k.ko100v wrote:This is interesting
http://imageshack.us/a/img9/98/r7ny.jpg
Gurney roll?

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djos
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Joined: 19 May 2006, 06:09
Location: Melbourne, Australia

Red Bull RB9 Renault

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I think the most plausible explanation I've seen is that RBR have installed kers dump resistors in the t-tray.

It makes sense on multiple fronts:

1/ cooling
A/ plenty of airflow to suck heat away
B/ keeps these very hot components away
from the side pods allowing them to be
tighter and removing one more heat
source.
2/ cog
"In downforce we trust"

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ringo
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Joined: 29 Mar 2009, 10:57

Re: Red Bull RB9 Renault

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raymondu999 wrote:
timbo wrote:
ringo wrote:Ironically Webber is the one who convinces me, this car is just plain fast, no trickery or gimmicks.
How do you define gimmicks/trickery?
Non-elliptical components
haha, good one, but you know this joke will run for years. But in all seriousness you can't discredit the principle.
I'm sure you can look throughout the post 2009 years and see how the front wings pf the other teams have evolved to take the form of the redbulls.
There's more to it, but i'll wait till the rules change completely in 2014 before i do a write up. It will explain mostly why these rb cars dont need much wing.
I just don't want to pop the secret, and spoil the show, even though it may make the show better if i do at the moment, as the cars are too dominant.
For Sure!!

Crucial_Xtreme
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Re: Red Bull RB9 Renault

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shelly wrote:
The two new vertical flaps have a very aggressive aoa to the loacl flow - they will generate a vortex rotatin in the opposite sens to the enplate top vortex. I do not know whe this will be useful
It's for tyre wake management. It will help keep the top of the front tyre wake away from RW.

via F1_Aero

shelly
shelly
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Joined: 05 May 2009, 12:18

Re: Red Bull RB9 Renault

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Interesting! That' in line with what miqi23 explained here almost 2 years ago: http://www.f1technical.net/forum/viewto ... ilit=delta
miqi23 wrote:Vortex number 4 is to manage the flow around the side pods. Its location strongly affects the side pod design. 5 is for the underbody, 6 and 7 is for upper wake management of the front tyres and you see a small delta on the rear wing as a result. 1 goes in board, 2 goes outboard, both to manage the tyre wake.
where 6 and 7 in that picture were the vortices released from the cascades inner endplates
Last edited by shelly on 08 Oct 2013, 21:53, edited 1 time in total.
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