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Old 06-10-2018, 03:04 AM   #711 (permalink)
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Quote:
Originally Posted by freebeard View Post
...

Note the reattachment on the deck lid.
Yes, but there is clear evidence of vortices spinning off the C-pillars, as well as quite a lot of turbulance in the reattachment at the trailing end of the decklid. Beautiful car, too!

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Old 06-10-2018, 10:41 AM   #712 (permalink)
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Nice find guys, from the same website (NSU Ro 80 website) an article on aerodynamics.

Reducing the drag on square-back cars
By Julian Edgar
AutoSpeed - Reducing the drag on square-back cars

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http://ecomodder.com/forum/showthrea...1-a-19525.html
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Old 06-10-2018, 11:08 AM   #713 (permalink)
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Yes. Nice find. They build to theory using simple materials and then test, then revise the build based on the findings and test again. What the best EM threads do.
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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Old 06-10-2018, 12:38 PM   #714 (permalink)
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Because why not?

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Old 06-14-2018, 07:55 AM   #715 (permalink)
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Image with what looks to be a good article.


Mercedes-Benz Aerodynamics: Emotion meets efficiency
https://mercedes-benz-blog.blogspot....s-emotion.html

Quote:
When it comes to wind resistance, noise levels, open-top driving comfort and anti-soiling measures, i.e. in all aerodynamic disciplines, models from Mercedes-Benz have taken the leading position in almost all vehicle classes for many years. This demonstrates that an exciting, emotional design and high aerodynamic efficiency are not contradictory. With the new aeroacoustics wind tunnel at the development centre in Sindelfingen, the company has now also taken the lead in aerodynamic testing.....................

With the "large wind tunnel" in Stuttgart-Untertürkheim, Mercedes-Benz was the first automobile manufacturer to possess a wind tunnel – the first documented measurement was carried out there exactly 70 years ago, on 5 February 1943....................

With the "large wind tunnel" in Stuttgart-Untertürkheim, Mercedes-Benz was the first automobile manufacturer to possess a wind tunnel – the first documented measurement was carried out there exactly 70 years ago, on 5 February 1943.
I don't think we ever discussed this topic.

Quote:
The battle for clear visibility is another area of activity for the wind tunnel specialists. The aim is to direct the airflow so that a clear view through the side windows and of the exterior mirrors is ensured even in murky weather conditions.
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1977 Porsche 911s Targa
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Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

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http://ecomodder.com/forum/showthrea...1-a-19525.html

Last edited by kach22i; 06-22-2018 at 08:31 AM..
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Old 06-14-2018, 10:33 AM   #716 (permalink)
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[citation needed] but, if IIRC, Mercedes Benz put horizontal ribs on their taillights so that dust wouldn't collect on them,
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Old 06-14-2018, 01:19 PM   #717 (permalink)
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Old 06-21-2018, 09:20 AM   #718 (permalink)
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Aerodynamics.............UK
Citroën
Aerodynamics








Quote:
The aerodynamicist, for his part, has to check the results found with the first few shapes made up, and to suggest possible improvements to the stylist. The entire effectiveness of their collaboration takes form in their definition of an ambitious aerodynamic performance project and in their aptitude to achieve it in a seductive form.

This mode of collaboration between stylist and technician has been and remains characteristic of the genesis of Citroën models.
An extensive website................you have been warned.
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1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html
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Old 06-21-2018, 12:05 PM   #719 (permalink)
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Black and Green - '98 Honda Civic DX Coupe
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I think you forgot the link to the article, Kach22i:

http://media.daimler.com/marsMediaSi...ml?oid=9904240


About 10 or 12 years ago, it seemed to me, Mercedes started producing a number of aero-slick body shapes. Some of them made me rethink Germany. I remember a beautiful large Mercedes coupe (CLS 550?) ten or 12 years ago with a fab bowed/arched trunk lid separation point. Beautiful car. The newer C class is slick too, though not as pretty, IMO. Audi and VW had some larger coupes with similar aero/aesthetic features at the time... all of it seems to be in line with this philosophy of "emotional" and aerodynamically effective design. They seem to be on the leading edge again. Totally took a certain kind of cutting edge lead from Toyota, whose Prius shape lots of people recoil against.
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.


Last edited by California98Civic; 06-21-2018 at 12:12 PM.. Reason: Link, typo... i'm done!
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Old 06-21-2018, 12:43 PM   #720 (permalink)
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Quote:
Originally Posted by California98Civic View Post
I think you forgot the link to the article, Kach22i:
It was there, will repost it.

Aerodynamics

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George
Architect, Artist and Designer of Objects

1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html
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