Scuderia Ferrari SF71H

A place to discuss the characteristics of the cars in Formula One, both current as well as historical. Laptimes, driver worshipping and team chatter do not belong here.
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outsid3r
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Joined: 01 Nov 2012, 22:55

Re: Scuderia Ferrari SF71H

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Tiny hole in the tip of the nosecone, also appearing on other images from test 2

paddyf1
paddyf1
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Joined: 17 Sep 2010, 13:34

Re: Scuderia Ferrari SF71H

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Just_a_fan wrote:
05 Mar 2018, 14:28
The Ferrari's Top Entry Radiator Duct (TERD) alters the airflow over the sidepod and hence to the rear wing (and the top of the diffuser, to a degree). Most teams run devices on top of the sidepod (e.g. a wing-like structure /and/or VGs) to help air flow over the sidepod without separating - especially at the leading edge where the flow is being worked hard. The TERD prevents this system from being used for obvious reasons.

Normally, the mirrors will affect flow behind them to a degree - quite marked in some cases. See here how the mirror generates a vortex :https://www.totalsimulation.co.uk/wp-co ... 68x389.png

That vortex wouldn't help the TERD to entrain air in to the sidepod. So by bringing air through the mirror, Ferrari weaken the downstream effect of the mirror. The result is cleaner flow to the TERD as well as a minor reduction in drag from the mirror. The TERD benefits and the rear wing/diffuser upper surface both benefit too.

The idea that the mirror turns air in to the TERD is nonsensical when one looks at how much the flow would need to be turned.
To call someone else`s idea nonsense is the right way to go, you were doing so well up until your last paragraph.

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jagunx51
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Re: Scuderia Ferrari SF71H

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Morteza wrote:
06 Mar 2018, 11:38
https://pbs.twimg.com/media/DXmHlgNW4AAJX0v.jpg

Via @F1debrief
is that a duct on the floor ?
............!!!!

ema00
ema00
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Joined: 02 Mar 2012, 22:13

Re: Scuderia Ferrari SF71H

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yes, it is... Piola says it collect hot air from the PU

CriXus
CriXus
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Re: Scuderia Ferrari SF71H

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According to Motorsport IT, SF71-H (3678) is only 2mm shoter than W09 (3680).
“The reasonable man adapts himself to the world: the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.” - George Bernard Shaw

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MtthsMlw
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Re: Scuderia Ferrari SF71H

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Image

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Morteza
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Re: Scuderia Ferrari SF71H

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Image
Via @F1debrief
Last edited by Morteza on 06 Mar 2018, 16:13, edited 1 time in total.
"A fool thinks himself to be wise, but a wise man knows himself to be a fool."~William Shakespeare

JPBD1990
JPBD1990
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Joined: 22 Feb 2018, 12:19

Re: Scuderia Ferrari SF71H

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The Ferrari rear wing is much bigger than the Mercedes. Does this indicate that the Ferrari car is generating less downforce elsewhere so need to run a much fatter rear wing? I assume that’s bad?

Powy
Powy
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Joined: 26 May 2015, 13:09

Re: Scuderia Ferrari SF71H

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I found another paper regarding the Ferrari mirrors:

Experimental Investigations of Vehicle Base Drag Reduction Using Passive Jet Boat-Tail Flow Control

From the abstract:
A reduction in the turbulent fluctuation of the wake can be observed in addition to a decrease of the recirculation region velocity. Using 2D/3C Particle Image Velocimetry (PIV), two models with different inlet sizes are tested. The large flow rate model is designed with an inlet area 4.7 times greater than the other JBT prototype. The wind tunnel experimental results show a substantial reduction in the wake width and depth for the two models, which indicates a significant drag reduction.
The paper also includes images of the wind tunnel models.

Jolle
Jolle
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Joined: 29 Jan 2014, 22:58
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Re: Scuderia Ferrari SF71H

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If they would run the same downforce levels, yes. A rear wing is, compared to the floor, a very inefficient way to generate downforce. But it's testing, they would run different levels of DF to test the car and the correlation to the sim. Having the best package for Barcelona isn't the test.

Sevach
Sevach
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Joined: 07 Jun 2012, 17:00

Re: Scuderia Ferrari SF71H

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I'm still clueless.

CBeck113
CBeck113
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Joined: 17 Feb 2013, 19:43

Re: Scuderia Ferrari SF71H

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Interesting ducting for a simple aero improvement.... :mrgreen:
“Strange women lying in ponds distributing swords is no basis for a system of government. Supreme executive power derives from a mandate from the masses, not from some farcical aquatic ceremony!” Monty Python and the Holy Grail

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Vanja #66
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Joined: 19 Mar 2012, 16:38

Re: Scuderia Ferrari SF71H

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manchild wrote:
06 Mar 2018, 01:09
If you're going to do a CFD, make it as simpe as it gets. A rectangular box with rounded front, facing the air stream at 90°, with stem/branch but without a car at all.

Than try the same with ducting trough stem/branch of approximate size and ducting towards sidepod. Both on identical speeds, let's say 100kph 200kph and 300kph. I estimate that without ducting they'll choke at 50-100kph.
Agreed, will do it soon.

Also, due to some unfortunate events, I'll be spending a lot of time home in the next 2-3 weeks, so I'll also do some simulations concerning Y250 area, to try to understand the effects of more or less slots in this zone. This is something I promised to do, but didn't hope for it to be possible that soon.
AeroGimli.x

And they call it a stall. A STALL!

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ironrose
ironrose
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Re: Scuderia Ferrari SF71H

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g70
g70
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Joined: 27 Feb 2017, 17:11
Location: Catania - Sicily - Italy

Re: Scuderia Ferrari SF71H

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the photo is not of the 2017 car?