Most pec...bizarre aerodynamics thread.

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Manoah2u
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Re: Most pec...bizarre aerodynamics thread.

Post by Manoah2u » Sun Jan 18, 2015 1:23 pm

Image
Image

1981 Mercedes-Benz Auto2000

very low drag coefficient of Cd = 0.28

The petrol engine was derived from a 3.8 L standard V8 modified with automatic cylinder shut-off that temporarily shut down four chambers, resulting in the fuel consumption figure for the Euromix driving cycle being reduced to just 9.3 liters per 100 kilometers.

T diesel version had a 3.3-litre six-cylinder diesel engine with twin turbochargers, and managed a fuel consumption of 7.5 liters per 100 kilometers at a speed of 120 kmh

the third version that was the most pioneering: a gas-turbine engine which brought several benefits, including low-pollutant combustion, low weight, compact dimensions, favorable torque characteristics and the elimination of water cooling.

The concept was still considered novel when it was used in the Jaguar C-X75 of 2010 – a testament to how forward-thinking the early-1980s Mercedes engineering department was.



Dumpster sounds so much more classy. It's the diamond of the cesspools.

hpras
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Re: Most pec...bizarre aerodynamics thread.

Post by hpras » Sun Jan 18, 2015 5:59 pm

henra wrote:
hpras wrote:Rollie Free heading towards 150.3mph on a Vincent in 1948. Notice that the Speedo emphasizes ellipses. Completely nutters.
http://upload.wikimedia.org/wikipedia/e ... rd_run.jpg
Priceless.
The helmet must be purely for improving aero me guess, considering the rest of his protective clothing... :mrgreen:
The "helmet" was a bathing cap.

wesley123
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Re: Most pec...bizarre aerodynamics thread.

Post by wesley123 » Wed Mar 04, 2015 2:13 am

Seeing how crazy Time Attack aero is becoming this article from the WTAC website is worth mentioning here;

http://www.worldtimeattack.com/index.ph ... -good-for/
"Bite my shiny metal ass" - Bender

wesley123
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Re: Most pec...bizarre aerodynamics thread.

Post by wesley123 » Tue Mar 31, 2015 8:54 pm

Image

CART cars of that era all had pretty cool era. This is 1998s Penske PC27
"Bite my shiny metal ass" - Bender

djos
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Re: Most pec...bizarre aerodynamics thread.

Post by djos » Tue Mar 31, 2015 10:38 pm

wesley123 wrote:http://i.imgur.com/AmzvevE.jpg

CART cars of that era all had pretty cool era. This is 1998s Penske PC27
CART cars always looked great and the racing was awesome - I hope Tony George dies a horrible painful death for his role in destroying American open wheel racing!
The impossible often has a kind of integrity which the merely improbable lacks.

wesley123
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Re: Most pec...bizarre aerodynamics thread.

Post by wesley123 » Sun May 10, 2015 4:13 am

Image

SuperGT always is interesting.
"Bite my shiny metal ass" - Bender

J.A.W.
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Re: Most pec...bizarre aerodynamics thread.

Post by J.A.W. » Thu May 14, 2015 7:44 am

Is that the Lexus DTM equivalent?
Dr Rick Marshall sez..
"Science shows no mercy - & neither do I..."

gixxer_drew
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Re: Most pec...bizarre aerodynamics thread.

Post by gixxer_drew » Fri May 15, 2015 1:32 am

Yes, it is.

wesley123
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Re: Most pec...bizarre aerodynamics thread.

Post by wesley123 » Wed Oct 07, 2015 9:59 pm

Bumping with a pic of the DTM diffuser.

Never would have imagined the throat to be that wide.

Image
"Bite my shiny metal ass" - Bender

variante
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Re: Most pec...bizarre aerodynamics thread.

Post by variante » Thu Oct 08, 2015 8:52 pm

wesley123 wrote:Bumping with a pic of the DTM diffuser.

Never would have imagined the throat to be that wide.
Great shot! That diffuser reminds me of something...

machin
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Re: Most pec...bizarre aerodynamics thread.

Post by machin » Thu Oct 08, 2015 9:55 pm

Yeah, that is a good photo! Would be interesting to see a better one of the front too...
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RicME85
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Re: Most pec...bizarre aerodynamics thread.

Post by RicME85 » Thu Oct 08, 2015 11:29 pm

Aye did think it was pretty similar

hpras
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Re: Most pec...bizarre aerodynamics thread.

Post by hpras » Fri Oct 09, 2015 3:05 am

Technically.... since it starts well before the rear axle, wouldn't that be called a ground effect tunnel?

machin
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Re: Most pec...bizarre aerodynamics thread.

Post by machin » Fri Oct 09, 2015 7:14 am

Well technically a diffuser is simply a section of geometry with an expanding cross section that is used for pressure recovery of the flow. This fluid separator has a diffuser for example:

Image

So whether you call that underfloor configuration "ground effect tunnels" or not, its still the diffuser section that Variante was talking about.
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Sebp
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Re: Most pec...bizarre aerodynamics thread.

Post by Sebp » Thu Oct 15, 2015 7:28 am

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