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Aero Testing - Part 4
14 August 2001
This week we'll step away from the on-road wool-tuft testing that we've been covering over the last few issues. Instead in this article we'll look at a whole host of wind tunnel and computer simulation photos recently released by DaimlerChrysler. The wind tunnel photos are fantastic, showing wonderful patterns of streamlines highlighted by smoke testing. And the computer simula...
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Relevance: 1000
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Aero Testing - Part 4
04 July 2007
This week we'll step away from the on-road wool-tuft testing that we've been covering over the last few issues. Instead in this article we'll look at a whole host of wind tunnel and computer simulation photos recently released by DaimlerChrysler. The wind tunnel photos are fantastic, showing wonderful patterns of streamlines highlighted by smoke testing. And the computer simula...
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Relevance: 1000
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Aero Testing - Part 3
07 August 2001
We stick wool tufts all over a Porsche 993 twin turbo 4WD and a Volkswagen New Beetle. Both are fascinating examples of aerodynamics at work - and a lot of it can be seen just by looking at the tales told by the fluttering bits of wool.
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Aero Testing - Part 3
27 June 2007
We stick wool tufts all over a Porsche 993 twin turbo 4WD and a Volkswagen New Beetle. Both are fascinating examples of aerodynamics at work - and a lot of it can be seen just by looking at the tales told by the fluttering bits of wool.
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Aero Testing - Part 5
21 August 2001
So far in this series we've stuck tufts of brightly coloured wool all over cars and driven them down the road, analysing and photographing the swirling patterns of air and deducting where there's attached and turbulent flow, lift and downforce. Then last week we stepped into the DaimlerChrysler wind tunnel and looked at the smoke-stream testing of lots of late model Mercedes mo...
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Aero Testing - Part 5
11 July 2007
So far in this series we've stuck tufts of brightly coloured wool all over cars and driven them down the road, analysing and photographing the swirling patterns of air and deducting where there's attached and turbulent flow, lift and downforce. Then last week we stepped into the DaimlerChrysler wind tunnel and looked at the smoke-stream testing of lots of late model Mercedes mo...
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Relevance: 957
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Aero Testing - Part 1
24 July 2001
In this series we're going to carry out some on-the-road aerodynamic testing of a variety of cars: the sort of approach that anyone with a few hours to spare can also do. This week we look at how the technique can be applied and how to interpret some of the results, while next week we launch into action with the first of five cars. Over the next weeks we'll test a 1997 Porsche ...
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Aero Testing - Part 1
13 June 2007
In this series we're going to carry out some on-the-road aerodynamic testing of a variety of cars: the sort of approach that anyone with a few hours to spare can also do. This week we look at how the technique can be applied and how to interpret some of the results, while next week we launch into action with the first of five cars. Over the next weeks we'll test a 1997 Porsche ...
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Relevance: 927
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Aero Testing - Part 2
23 June 2007
Looking at the airflow over a 1999 Impreza WRX and a 1991 Lexus LS400.
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Aero Testing - Part 2
31 July 2001
Looking at the airflow over a 1999 Impreza WRX and a 1991 Lexus LS400.
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Response
15 July 2007
Readers write
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Response
21 August 2001
21 August 2001
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The Aerodynamic Development of the VY Commodore - Part 1
17 December 2002
For this exclusive series of stories, we talked to Holden aero engineers, pored over in-house company technical data and were given access to never before seen images. For tech-heads this is brilliant stuff - the significance of the aero changes are discussed, assessed and measured. The aero mods and their outcome also give a very good indication of the sort of results that wil...
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Relevance: 768
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Blowing the Vortex, Part 1
26 September 2006
The Evo Lancer's got them. So have plenty of race cars and some one-off specials. And you'll also find them on aircraft wings. They're vortex generators. So what are they, what can they do for your car's aerodynamics and where can you get them?
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Silencing Wiper Wind Noise
26 February 2005
These days, most cars are aerodynamically pretty quiet. Whistles and rustles from the A-pillars and exterior mirrors are subdued - the result of many hours of development work in aero-acoustic wind tunnels. However, the windscreen wipers often escape the aerodynamic analysis and so contribute more than their fair share of wind noise. So are you're stuck with the noise? Not at a...
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Modifying Under-Car Airflow, Part 1
09 March 2005
This two-part series concentrates on modifying the under-car aerodynamic flows of cars being driven on the road - unlike most stories of this type, we're not trying to inappropriately use race-car techniques. So while you're unlikely to be able to generate a large amount of downforce - not without a very extensive car redesign, anyway - you'll be able to either reduce lift or d...
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Chasing Overheating - Again!
09 June 2009
Previously I looked at the problems I was having with my V8 Cobra replica in the overheating department. I finally solved most of the problem by converting the single pass radiator to a triple pass design. But while the cooling system performed much better, in just the wrong combination of circumstances there could still be a problem...
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Relevance: 596
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Low Drag Car Aerodynamics
08 March 2008
Imagine for a moment that air was as visible as water. As every car passed, you would be able to see the swirls and whirls of air disturbed by its passage. Some cars would drag behind them an enormous wake, larger even than the frontal area of the car. Others would have only a small area of disturbed air trailing them, these cars slipping easily through the air.
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Relevance: 463
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