Ferrari F138

[Jersey Tom]

The car looks race ready to me. All the parts are on it.

It could drive laps around a circuit, yes, if that's what you mean. Not necessarily at all like it will be for the first test or race... so, we may hold off on the eyeball'd aero/CFD analysis until then...

[Forghieri]

Will they do a Fiorano shakedown, or go directly to Jerez?

No they've cancelled the Fiorano shakedown.

[Dream Theater]

Will they do a Fiorano shakedown, or go directly to Jerez?

During the presentation they said to the italian medias that the car will do his first debut directly in Jerez track.

[ESPImperium]

Will they do a Fiorano shakedown, or go directly to Jerez?

During the presentation they said to the italian medias that the car will do his first debut directly in Jerez track.

Most of the teams are away to the Idiada test track in Barcelona first to to shake down their cars, Force India did it at Silverstone, the rest are away to Idiada. McLaren are there with Turvey doing shake down today, and possibly a straight line day tomorrow. Id think that Lotus will have Valshecchi at the wheel for their shake down and Sauber will be away there right now with their car for Frings to shake it down. Mercedes will probably be shaking down with Hartley. Williams are shaking gown their FW35 with Susie Wolff.

http://www.idiada.cz/proving-ground.html?lang=2

[Lorenzo_Bandini]

[Crucial_Xtreme]

Even if Ferrari plan on changing the exhaust or revising the sidepods, why not do these right? I'm not saying they're necessarily right but it seems as though they're still not getting it. Have a look at the McLaren or even the Sauber. Notice the longer more pronounced slant downwards after the top of the sidepod. Also it "seems"(looks) like the aforementioned teams exhaust sits lower than Ferrari. I'm not an F1 engineer but from my knowledge it appears a couple of the other cars have more opportunity for a greater down wash effect than what's present on the current F138.

Hopefully this changes with updates but its the one thing sticking out in my mind about this car.

[wesley123]

I disagree, there isnt really much difference compared to the different exhausts. McLAren and Ferrari seem to go the same road, but the Ferrari seems to slope down more.

Compared to last year the exhaust seems to be a bit more forward than before, the fairing McLaren and Sauber had last season might come in real handy here.

[Sevach]

While the front of the sidepods (apart from the straighter topside) and undercut look similar , from that point back the car looks a lot more refined and slimmer.

Even the exhaust looks better integrated and less like a snout hanging from the car.

[Mui]

Ferraris whole cooling system is further forward compared to most other cars. If we a look at a side profile, take the airbox as a reference point we can see that the widest part of the sidepods where it meets the floor is much further forward compared to other cars except maybe the williams fw-34.In the case of ferrari its where the infor branding is and for mclaren its the 'n' of the vodafone here. This shows that ferrari radiators are located forward of the car giving them the ability to have a very tight rear end.

[Crucial_Xtreme]

I disagree, there isnt really much difference compared to the different exhausts. McLAren and Ferrari seem to go the same road, but the Ferrari seems to slope down more.

Compared to last year the exhaust seems to be a bit more forward than before, the fairing McLaren and Sauber had last season might come in real handy here.

Guess you haven't really compared them, or maybe it's just me but I don't see it. The McLaren slopes down earlier & goes longer. The bodywork definitely goes lower.

[wesley123]

I meant to say that the Ferrari one has a curve, and at it's end bodywork is more curved downwards than the McLaren.

The McLaren is indeed lower and further back, but has more of a straight line flowing towards the end.

Therefore I think the Ferrari one is further back, but has more effect from the downwash.

[flyboy2160]

...Guess you haven't really compared them, or maybe it's just me but I don't see it. The McLaren slopes down earlier & goes longer. The bodywork definitely goes lower....

cx, i see what you mean about the different shape of the f138 sidepod/sidepod shoulder. some of the other sidepod shoulders drop off much more sharply. the f138 sidepod shoulder looks like it starts out higher, goes up a little, then smoothly arcs down. in fact, the whole f138 sidepod seems higher than the others.

but it's a tradeoff: the lower/farther aft exhaust outlets are closer to where the exhaust should go vs. more disruption of the flow on the lower waist as it goes aft. you'd need heavy duty cfd and tunnel data to make that call.

some of the other sharply changing shoulders look more prone to flow separation, especially the sauber, but again you'd need cfd or a tunnel to call it.

but there certainly are differing design solutions shown in your photo.

[Phillyred]

I imagine the contour of the sidepods as it relates to the the termination point of the exhaust is largely dependent on the condition of air flow before the sidepods enter the equation. Comparing relative sidepod/exhaust profile amongst the mentioned cars is too "narrow-minded" without knowing an aero-profile as to what conditioning is happening well before the exhaust exits.

[Pierce89]

That slider is pretty convincing on the "that's an F2012 tub" hypothesis..

Scarbs said thetub has been reworked ie not the same

[amouzouris]

Even if Ferrari plan on changing the exhaust or revising the sidepods, why not do these right? I'm not saying they're necessarily right but it seems as though they're still not getting it. Have a look at the McLaren or even the Sauber. Notice the longer more pronounced slant downwards after the top of the sidepod. Also it "seems"(looks) like the aforementioned teams exhaust sits lower than Ferrari. I'm not an F1 engineer but from my knowledge it appears a couple of the other cars have more opportunity for a greater down wash effect than what's present on the current F138.

Hopefully this changes with updates but its the one thing sticking out in my mind about this car.

After the CFD tests that i have carried out, i learned that the coanda effect is the biggest contributor in pushing the exhaust plume towards the diffuser... downwash plays a much smaller role in that...the reason Ferrari's exhaust exit and semi coanda ramp is higher than the one on the McLaren is so that the flow below it does not stagnate and induce drag...McLaren's sidepods seem like they will produce some stagnation points below the semi-coanda ramp...also the reason they are not as backwards as McLaren's is to minimize the lift produced by the sidepods as there will be less surface for the lower pressure above the sidepods to act on and produce lift..That said, McLaren's sidepods should manage to aim the exhaust plume slightly better, and the exhaust will have a bit more energy left in it (thus velocity) than the Ferrari's which starts slightly further front....that said the difference is small...but not insignificant (regarding exhaust velocity)

P.S. I am expecting Ferrari's exhaust configuration to change, as I do McLaren's.