Random Wind Tunnel and Smoke Pictures Thread

[euromodder]

Originally Posted by kach22i

Project Heinkel

Clear to see where the early Porsches and original Saabs came from

[NeilBlanchard]

George, that is a picture of the Schlörwagen I have not seen before, and it seems to be only available in that tiny Flash slideshow... No tufts on it, either.

[kach22i]

Gregg Fraley, Creativity & Innovation Consultant, Professional Speaker. Idea generation training and new product development | 2013-ats-sedan-performance-aerodynamic-design-video-960×540


Pictures: A Rare Look Inside Carmakers' Drive for 55 MPG


Mercedes-Benz Aerodynamics: Emotion meets efficiency
By Adrian-Liviu Dorofte at Friday, February 15, 2013
Mercedes-Benz-Blog: Mercedes-Benz Aerodynamics: Emotion meets efficiency

[freebeard]

When I saw you had posted I expected it would be this one, so yay me:

There's a slide show, 4 of 5 on-topic.

[kach22i]

Originally Posted by freebeard

There's a slide show, 4 of 5 on-topic.

We have talked about this car before, but I don't recall ever seen wind tunnel and smoke pictures of it before.

Does this last image indicate that attachment os air flow is not everything?



Seems to look like the air knows what to do and is not tumbling away in a disruptive manner.

EDIT-1: The wheels do not seem to be turning in the wind tunnel photos, therefore the draw of the engine fan does not seem to be entering the equation. Making the air flow even more flattering for this design, or less so?

The messy air and pressure discharge under the car's engine bay would undo any gains topside though the rear engine intake?

[freebeard]

I was going to say it indicates an engine starved for air. But you are [apparently] right.

Most all of the pictures with smoke streaming the length of the vehicle show that orderly detachment. I'd like to see the smoke applied from the rear as so:

I didn't look at the pics a lot, I was mainly interested in the list of cars that have a higher Cd today. The only thing that tops it is the VW LX1 and it's a tandem 2-seater.

We have talked about this car before...

It's my favorite car. In 1974 when everyone started re-popping MG-TDs and Ford GT40s in fiberglass to drop onto the endless supply of VW chassis, it was sitting in a museum in France. The Amante was about as good as it got in that market.

If things had gone a little differently it would be as iconic a shape as the 911 and you could get them in a carbon fiber/titanium mesh today.

I'd like to see the cut line in back go more like this:

With an electic motor, you wouldn't have to worry about fumes seeping forward.

Bu, like you, I would really like to see the underside to see how Volkhart handled the airflow around the engine and exhaust.

[kach22i]

2005 Pagani Zonda F - Wind Tunnel - 1600x1200 Wallpaper


2005-Pagani-Zonda-F-S-Wind-Tunnel-1600×1200 - New Cars, Used Cars, Car Reviews, Car Finance Advice, Affordable Cars in Nigeria – Wonderwheels Automobiles


Pagani Zonda S windtunnel | HD Car wallpapers

[euromodder]

A lot of windtunnel pics that make it into the sales brochures & advertising, are doctored pics ...

Look at the real Zonda tunnel pics, and the cleaned side view ... reality isn't anywhere that clean.

[kach22i]

http://www.curbsideclassic.com/autom...t-1-1899-1939/

The Rumpler’s shape was very aerodynamic, but it was also quite tall and boxy, which resulted in the one hundred or so production cars being used primarily as taxis puttering around Berlin because of their roomy minivan-like bodies.

Mercedes-Benz Classic Home - The Mercedes-Benz S-Class tradition - Aerodynamics


Aerodynamics - Tech - European Car Magazine


Aerodynamics Mercedes Clk Rear Right Window Photo 4

[kach22i]

The “large wind tunnel” in Untertürkheim | Mercedes-Benz Passion eBlog


http://www.autospeed.com/cms/article.html?&A=112241

It was mentioned above that underfloor drag is responsible for about one-third of the total drag of a current car. The other proportions are also easy to remember – about one-third for all the exterior surfaces and the last third caused by airflow required for engine cooling. (See Modifying Under-Car Airflow, Part 1.)