Renault R30

[mith]

I have to listen to that podcast. Anyway, I think putting not calibrated F-duct into the car could hamper it's aerodynamic performance rather than bringing any gains. Especially, when they have good straight speed already.

BTW, Kubica said in the interview, he could have been a little bit faster in the qualification, if he wasn't sliding on the options. He said it was second time in a row (same was for Monaco), when he wasn't feeling too comfortable on the softer tyres and they need to investigate it. Still, it's nice to see them slowly catching up to Mercedes and Ferrari.

[Neno]

I think Renault will arrive in Montreal with the f-duct, in fact I'm pretty sure it is Boullier announced that the f-duct will be ready soon and will daga test on the track until it is 100 percent ready. With these large-scale aerodynamic package believe that it will reach F-duct, because later it difficult to be incorporated in the car. Aerodynamics is the key in this regard.

[Donuts]

I think Renault will arrive in Montreal with the f-duct, in fact I'm pretty sure it is Boullier announced that the f-duct will be ready soon and will daga test on the track until it is 100 percent ready. With these large-scale aerodynamic package believe that it will reach F-duct, because later it difficult to be incorporated in the car. Aerodynamics is the key in this regard.

You are absolutely right, the reason for the delay is that they had to "rethink" the whole rear wing design to incorporate it with the F-duct. Let's see if they'll bring it for Canada, at least to try it out in practice. If RK can score good point in the next two races, maybe Renault can start challenging for some really serious point. With less than half the championship season passed, you nerver know who might end up winning.

[Blackout]

Yes, if they bring f-ducts in Montreal, it will be only for test purposes, I think. That track requires ''flat'' wings like Spa for example.

[Blackout]

I made a comparison between R30's sidepods and those of R29. And I have a question about the radiators ...



The R29 has, paradoxically, a more sculpted sidepods, they coat the radiators and the exhausts better at the bottom...

But if we take a look inside these two cars, we can understands why...



The fuel tank has been widened and lengthened to accommodate more fuel in the R30, so the engine has been pulled back, which has created extra space in the sidepods. Two small radiators have taken place in each of these areas. I ignore what are they cooling ? Someone has an idea ?

But that's not the only reason.... A ''spindle''took place between the secondary radiators and the exhausts. It was well integrated into the R29, but in the R30, it is bulky and it blocks the way for the sidepods, sacrificing valuable space on the floor...

(A comparison between the R30 and the 29)



The R29:



That spindle should not be there
Other teams have done a lot of work after the start of the season to thin their sidepods (Williams, Red Bull...) Renault will perhaps follow them. The engine cover is one of the most difficult parts to manufacture and Renault may have left it for later...

[manchild]

Additional ones are engine oil radiator & gearbox oil radiator, but not literary additional since they've always existed.

When fuel tanks were smaller, it was possible to integrate them (especially engine oil rad.) with water radiator as one monolith piece, but since there's less space now, they had to be split in for the sake of sidepod aero. They've obviously also moved gearbox radiator down since R30 was designed to have DDD unlike R29.

BUT that is not the most interesting thing I've seen on your pic. The most interesting thing is that R30 has two pipes leading into airbox, as if they reach splitter I haven't heard of so far. Looks like they are for clutch cooling.

[Blackout]

Thanks.

You mean one of the little separate radiators is for the engine oil and the other one for the gearbox ?

Yes, I also saw that pipes (that's the R29) and no other car (except the R30, maybe) seems to have them...

[BreezyRacer]

Nice pics Blackout! Thanks for posting them ..

BTW, as for the spindle, I believe it's added to make the floor stronger. Remember that the floor is where downforce is created and it needs to be rigidly positioned and transfer that DF to the chassis. The force created with these DD diffusers is quite high.

[manchild]

Thanks.

You mean one of the little separate radiators is for the engine oil and the other one for the gearbox ?

Yes, I also saw that pipes (that's the R29) and no other car (except the R30, maybe) seems to have them...

R29 in black and yellow?

I'm pretty sure those are engine oil and gearbox oil radiators.

[Blackout]

@ Breezyracer
Exactly...
But I hope Renault will move it elsewhere and modify the exhaust layout and make more sculpted sidepods around them
and, why not, move the exhaust into the diffuser

@Manchild

yes, some R29 were repainted and that's an R29; look at the winglets attached high in the airbox, for example...

[BreezyRacer]

I think the sidepod shape, seemingly a little boxy, actually aids with the diffuser on this car by creating a bit of a low pressure area behind it. This is useful because the Renault double diffuser uses the beam wing as the top of the upper diffuser, meaning it's pretty high and that high energy airflow to that area doesn't do anything for it.

The Red Bull setup you allude to goes in an entirely different direction with the beam wing kept separate of the diffuser so it's essential for them to maximize high energy flow in that area of the car. Even though the Red Bull is slick it is NOT a low drag car, but it quite efficient and produces more DF than the others, IMO because of this.

As for the exhaust in the Red Bull, it's used to isolate diffuser flow from tire turbulence, which is quite critical for optimum diffuser performance. That is the secret to why Newey makes the it work. Most people think the exhaust flow is to speed airflow in the diffuser box like in the 90's. It's not ..

[Blackout]

Yes, I understand... but the ''Moving the exhausts further back'' was not serious, you know

I mean that the R30 sidepods are too large at their bottom (compared with the previous cars) and that they take too much place and maybe scarify valuable space on the floor, a space that can helps the floor to create more ground effect...

Moving the exhausts (and that spindle) a bit higher in order to tighten the sidepods under them should be one of the next development steps

[Carlo's]

Guys, approx 1 year difference:

[mith]

Do they have moveable flap and which would it be?

BTW, I'm pretty sure someone from Renault has said, they're going to have another step on their front wing in Montreal

[Blackout]

Guys, approx 1 year difference:
http://img101.imageshack.us/img101/4932/frontwing1.jpg
http://img59.imageshack.us/img59/5383/fr2010.jpg

Do they have moveable flap and which would it be?

yes. the upper one



this is the previous wing and it is even more complicated; look at the fins hidden in the back... the red ones especially. the black ones are not revolutionary but they're cool...

BTW, I'm pretty sure someone from Renault has said, they're going to have another step on their front wing in Montreal

Boullier and Permane said that.