[Fot] State of F1

[Andre Rousseau]

Hence the Honda flawed car...

A.

On 22-Oct-08, at 9:16 PM, Bill Babcock wrote:

> They model the bejessus out of F1 cars, but flow is always chaotic at
> the macro level. You can't even really precisely model water flow
> through a pipe except as an ideal pipe. You can be very predictive
> about components and even interactions between components to a degree,
> but its not enough to really know what's going to happen. For that you
> can't beat a tunnel. And the tunnel has to have a lot of special
> characteristics. I know that even half-size models are viewed as a
> gross approximation. Only a full size model will do, and it needs to
> have steerable wheels, dynamic height front and back,  and a rolling
> road before the data is considered truly useful.
>
> They also model (and wind-tunnel test) car to car interaction
>
> On Oct 22, 2008, at 3:16 PM, Shane Ingate wrote:
>
>> Kas wrote:
>>> Wind tunnels have an amazing cost.  Some teams have two full size
>>> running 24
>>> hours a day.
>>
>> That's interesting.  I would have thought that today all
>> aerodynamic and structure-loading modeling was done on a
>> computer. As Kas suggests, wind tunnels are expensive, but
>> computer modeling is dirt-cheap where an engineer can change
>> model parameters and make the calculations within minutes
>> that would otherwise necessitate a complete day in a wind tunnel.
>>
>> Many models these days (I speak for hydrodynamic and sub-atomic
>> interactions in the far-field) use non-linear models.  I would not be
>> surprised if non-linear models were used in the simple case of
>> aerodynamics.
>>
>> Shane Ingate in NM
>>
>>
>>
>>
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>
> Bill Babcock
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--
Andre Rousseau - andre at gt6.ca
'68 Triumph GT6 MK1 - http://www.gt6.ca/
Ottawa, ON, Canada