Virgin F1 vs the Wind Tunnel
Virgin F1 vs the Wind Tunnel
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Discussion

bigburd

Original Poster:

2,670 posts

229 months

Thursday 11th February 2010
quotequote all
It is widely publicised that Virgin/Manor have designed their car enitrely without the use of a wind tunnel.

What is the PH consensus? Do we believe them or do we not?

The reason I ask is that in recent days I have heard on my local F1 grapevine that they have in fact done wind tunnel testing, not sure if this is a full size or model in a smaller one.

If they have I am not too bothered as it is after all a useful tool for the job in hand, but why make a big thing in the press about not using one




Munter

31,331 posts

270 months

Thursday 11th February 2010
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None of them are allowed full size testing. So I doubt they did that....unless being very naughty.

hondafanatic

4,969 posts

230 months

Thursday 11th February 2010
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I was reading an article by Frank Dernie (think that was the chap?) saying that CFD isn’t advanced enough to be relied upon for the entire process, but it should be used alongside wind tunnel...

I imagine that the reason they made a big thing about it in the press is exactly that...it’s the press, they need as much interest in them as possible.

Altrezia

8,740 posts

240 months

Thursday 11th February 2010
quotequote all
Munter said:
None of them are allowed full size testing. So I doubt they did that....unless being very naughty.
Is that true? I thought Honda/Brawn/MercGP had a fullsizeun?

CastrolCraig.

18,073 posts

235 months

Thursday 11th February 2010
quotequote all
Altrezia said:
Munter said:
None of them are allowed full size testing. So I doubt they did that....unless being very naughty.
Is that true? I thought Honda/Brawn/MercGP had a fullsizeun?
yes, you still use full size wind tunnels, but the cars have to be scaled down iirc.

Mazda Baiter

37,069 posts

217 months

Thursday 11th February 2010
quotequote all
Altrezia said:
Munter said:
None of them are allowed full size testing. So I doubt they did that....unless being very naughty.
Is that true? I thought Honda/Brawn/MercGP had a fullsizeun?
So have ferrari, McLaren, Sauber...

It doesn't mean they use it.

Munter

31,331 posts

270 months

Thursday 11th February 2010
quotequote all
Mazda Baiter said:
Altrezia said:
Munter said:
None of them are allowed full size testing. So I doubt they did that....unless being very naughty.
Is that true? I thought Honda/Brawn/MercGP had a fullsizeun?
So have ferrari, McLaren, Sauber...

It doesn't mean they use it.
Models are only allowed to be 60% or something like that I'm sure. Cant bloomin find a source for that now though.

Joe911

2,763 posts

264 months

Thursday 11th February 2010
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Is it possible that it was entirely designed by CFD, and just tested in a tunnel?

anonymous-user

83 months

Thursday 11th February 2010
quotequote all
Munter said:
Mazda Baiter said:
Altrezia said:
Munter said:
None of them are allowed full size testing. So I doubt they did that....unless being very naughty.
Is that true? I thought Honda/Brawn/MercGP had a fullsizeun?
So have ferrari, McLaren, Sauber...

It doesn't mean they use it.
Models are only allowed to be 60% or something like that I'm sure. Cant bloomin find a source for that now though.
60% wind tunnel testing during the season apart from when substituting one straight line run day (6 days of this allowed) with a 4 hour full scale wind tunnel test, the air speed cannot exceed 50 metres/second in the wind tunnel.
The teams have a maximum of 15,000km track testing during the calendar year, and cannot do any test running after the previous week before the first race, so if USF1 haven't run their car before the first race, they cant do any testing, except for one days run to familiarise a new driver, this must take place before the second race.

DangerousMike

11,327 posts

221 months

Thursday 11th February 2010
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the reason is its very expensive to get all of the full sized air molecules you need for a full size wind tunnel, so they have banned them.

woof

8,456 posts

306 months

Thursday 11th February 2010
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doesn't or didn't the Mclaren wind tunnel run 24/7 and use more power than Woking did - or was that total nonsense ?


Mazda Baiter

37,069 posts

217 months

Thursday 11th February 2010
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DangerousMike said:
the reason is its very expensive to get all of the full sized air molecules you need for a full size wind tunnel, so they have banned them.
I've got a few pallets of that in my back garden. I might get in contact with a few F1 teams and see if they want them on the cheap.

I reckon Mike Gascoyne would buy it. hehe

spend

12,581 posts

280 months

Thursday 11th February 2010
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DangerousMike said:
the reason is its very expensive to get all of the full sized air molecules you need for a full size wind tunnel, so they have banned them.
Very droll wink

An excellent point though - why scale models which must be more expensive compared to testing the real things if any parts are to be put into production? However if you try 1000's of full scale parts vs 1000's of scaled parts the costs would escalate. I think as CFD is 'tuned / dialled in' better the former may be more applicable in the future?

williamp

20,388 posts

302 months

Thursday 11th February 2010
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I always they used smaller wind tunnel models as the drivers would be smaller and therefore they dont have to pay them as much.

furtive

4,503 posts

308 months

Thursday 11th February 2010
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woof said:
doesn't or didn't the Mclaren wind tunnel run 24/7 and use more power than Woking did - or was that total nonsense ?
Williams have 2 wind tunnels - a small one and a big one. When I did a factory tour a few years ago I was told that they both run 24x7

T89 Callan

8,422 posts

222 months

Thursday 11th February 2010
quotequote all
hondafanatic said:
I was reading an article by Frank Dernie (think that was the chap?) saying that CFD isn’t advanced enough to be relied upon for the entire process, but it should be used alongside wind tunnel...
You need a feedback loop to varify the results of the wind tunnel, if you don't have that then CFD is fairly useless as you have no idea how accurate any of the results are or how well you are prgramming the flow models.

My lecturer used to say about CFD and FEA: 'If you put st in you get st out'