Mercedes AMG F1 W05

[Richard]

I've moved posts about making the exhausts louder into the dedicated thread so this one can focus on the real W05 thread without distraction of a mickey mouse trumpet. http://www.f1technical.net/forum/viewto ... 14#p511614

[cirrusflyer]

Could be, but I don't think so, because the exhaust is not routed over there..[/quote]
The exhaust is not the only hot thing in the car. The entire purpose of the side pods is to cool things down. If they weren't hot, they wouldn't exist.[/quote]
Agreed.
But what about the rear wing. Why there is no trace in the middle of it?

[Aaronque]

[Shrieker]

How much do you guys think this car's speed comes from the secret tire test performed this time last year ? At the time they said they were testing tires for 2014.

[MercedesAMGSpy]

How much do you guys think this car's speed comes from the secret tire test performed this time last year ? At the time they said they were testing tires for 2014.

But they used the 2013 car, so that's not representative at all. I have read on Autosport Plus Mercedes started working on their 2014 project in 2008 (!), developing the KERS/ERS system.

[megasyxx]

Wow! 6 years in the making....no wonder they're leaps and bounds vs all the others, tsk tsk =D>

[beelsebob]

How much do you guys think this car's speed comes from the secret tire test performed this time last year ? At the time they said they were testing tires for 2014.

None at all, given that they missed a test that was longer, and where they could actually dictate what was going on, and record data, for having done what the FIA asked them to do.

[JDC123]

How much do you guys think this car's speed comes from the secret tire test performed this time last year ? At the time they said they were testing tires for 2014.

But they used the 2013 car, so that's not representative at all. I have read on Autosport Plus Mercedes started working on their 2014 project in 2008 (!), developing the KERS/ERS system.

That isn't correct. The current rules were only finalised at the start of 2011, meaning a maximum of 3 years development. The KERS was being developed for the 2009 season back when they were still Honda, not ERS as the rules for ERS hadn't been written back then.

[user001]

Yes, they were working on the ERS from 2008 on. It was said, that they simply did not stop with further development after the KERS was sacked. I doubt it was intended ever since to come back as a works team.

brawn was quoted one time that the actual development of the car had started roundabout the end of 2011/2012.

but yes, they've kept the pot boiling far off and before the overs.

ferrari started at least in 2012 as much as lotus.

[Crucial_Xtreme]

GA's analysis of Merc's new FW vane


via AutoSport

[mantikos]

How much do you guys think this car's speed comes from the secret tire test performed this time last year ? At the time they said they were testing tires for 2014.

But they used the 2013 car, so that's not representative at all. I have read on Autosport Plus Mercedes started working on their 2014 project in 2008 (!), developing the KERS/ERS system.

That isn't correct. The current rules were only finalised at the start of 2011, meaning a maximum of 3 years development. The KERS was being developed for the 2009 season back when they were still Honda, not ERS as the rules for ERS hadn't been written back then.

The ERS was being developed by Mercedes Engine - not the team specifically. Please read the previous few pages.

[flyboy2160]

I'm sure to get flamed for this, but in a recent hangover I posited a completely different hypothesis about the recent flattened sidepod extensions that also serve as body exhausts: could they be not for their exhaust properties, but rather for reducing sidepod lift? They sure look like they flatten the sidepod mean camber line.

I'm dubious about the exhaust effect. Even if the Meredith effect could be arranged, how would you be any better off than if you just tried to get as good quality air as possible to the upper edge of the diffuser?

I have a very good CFD program at home, but I don't have a car model and I'm busy with aircraft runs. Do any of you CFD guys with car models want to run this and check the sidepod lift?

And, yes, I'm expecting a rash of suggestions to drink better quality booze....

[turbof1]

I'm sure to get flamed for this, but in a recent hangover I posited a completely different hypothesis about the recent flattened sidepod extensions that also serve as body exhausts: could they be not for their exhaust properties, but rather for reducing sidepod lift? They sure look like they flatten the sidepod mean camber line.

I'm dubious about the exhaust effect. Even if the Meredith effect could be arranged, how would you be any better off than if you just tried to get as good quality air as possible to the upper edge of the diffuser?

I have a very good CFD program at home, but I don't have a car model and I'm busy with aircraft runs. Do any of you CFD guys with car models want to run this and check the sidepod lift?

And, yes, I'm expecting a rash of suggestions to drink better quality booze....

I think it's a combination of all sorts of things:
-Obviously the sidepods are less sloped then last year. Last year they had the issue of having an exhaust placed by regs in a very specific space. In order to get a good downwash effect, the sidepods had to be sloped, a necessary evil since it brings alot of lift and even drag. This year is a bit different: they still want to keep the undercute, but they don't to have the sidepods that sloped anymore.

-I don't believe in the meredith effect or even exhaust-like effect: Exhaust gasses is a high energy, low pressure flow. Air coming out of the cooling outlets, which are claimed to be exhaust replacers, is the exact opposite (with the exception of the temperature). It's messy air you actually don't want to have anywhere around, but since it has to be there you look for the best place to put them.

[flyboy2160]

... It's messy air you actually don't want to have anywhere around, but since it has to be there you look for the best place to put them.

Which is why I always liked the Red Bull cannon body exhaust. It looked like they tried to keep that crappy air away from the top of the diffuser and put it in some No Man's land between the diffuser top edge and the upper wing. It perhaps means worse air for a center area, bit I can see their overall reasoning.

[SiLo]

I think the same thing, they just want to exit this slower, messy air in a place where it will have minimal effect on downforce producing areas. Around the suspension is clearly the best place to do this, especially this year with the beam wing gone. Keep it high enough to have minimal effect on the diffuser, and low enough to not interfere with the underside of the rear wing.