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27 July 2014
Bite Size Tech: Williams FW36 Cooling options - Hungaroring

Having utilised the louvred shark fin configuration for the first time in Germany and running the appendage for much of Free Practice you'd have thought Williams would have continued it's use throughout the weekend.  Just to throw a spanner in the works though the team returned to their usual louvre-less engine cover for Qualifying.  That's not to say that cooling isn't still an essential element that the team were looking to concentrate on though, with the team returning to their use of their leading edge sidepod vents (circled).

The idea of course is not only to cool the powerunit but to further utilize wasted airflow by energizing the sidepods top surface, increasing the airflows speed over the sidepod (Coanda effect).  The Gurney trim around the periphery of the engine covers outlet was retained in order to pull the airflow through, lowering temperatures.
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26 July 2014
Bite Size Tech: Williams FW36 roll hoop winglet - Hungaroring

Williams arrived in Hungary having overtaken Ferrari in the constructors championship (in Germany) and wanting to keep the momentum going.  Their success this season has largely been down to a very efficient design, whilst Valtteri Bottas' talent has shone through too.  The team knew that Hungary is a very different challenge requiring as much downforce as can be found and so had a few new components to bridge the gap, as Red Bull would clearly be much quicker owing to the circuit characteristics (lower top speed and more conducive to downforce).
As we can see above, the team have introduced a small winglet that sits astride the roll hoop, something that Ferrari introduced early on in the season.  The idea of the winglet is to set up longitudinal vortices that not only disturb the rear wing, delaying separation, increasing downforce and reducing drag but also makes the wing work over a wider speed threshold and creating more balance in yaw.

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25 July 2014
23 July 2014
Bite Size Tech: Force India VJM07 Snorkel-less Engine Cover - Hockenheim

Force India had a significant upgrade package in Austria refining what had already turned out to be quite a nice package for the 2014 season.  The update package was however first scheduled for Silverstone and so with the team bringing it forward there were still some lingering components to come through over the next few races.  At the post Silverstone test the team assessed a new engine cover which repositioned one of the oil coolers, deleting the cooling snorkel and saw the introduction of an enlarged shark fin.
Now whilst this option was available to the team for Germany and was trialed during Free Practice the team opted for something a little different.  They retained their original engine cover (above) but deleted the snorkel inlet and associated internal pipework, having already relocated the cooler.
The previous specification with snorkel inlet can be seen above

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Bite Size Tech: Ferrari F14T rear end changes - Hockenheim

Ferrari once again took some sideways steps in Germany with the re-introduction of a much larger cooling outlet at the rear of the car (above).  The use of the cooling outlet also bought about a return of the dual rear wing support pylons, which does seem a little counter productive given that the last time the team used such a large cooling outlet it was in tandem with the singular pylon.  I'd therefore suggest that the team were moreover looking for a consistent/well known baseline, as the team looked to race the car without FRIC for the first time.  We know that FRIC allowed for aerodynamic consistency which is something that Ferrari have been unable to achieve successfully compared to their rivals.  That however doesn't mean to say that their package hadn't been keyed toward peak performance with it, just they were unable to enjoy it to the level their rivals were.
As we can see above (arrowed) the team also added some small fins to the skid blocks trailing edge, these fins create vortices which help to keep the airflow attached, creating better stability.  These vortex generating fins may have simply been a rudimentary quick fix owing to the FRIC ban to overcome some instability or part of their planned upgrades.  Other teams have also run these this season including Red Bull, Lotus and McLaren


As pointed out to me Ferrari have been using these Vortex Generators for the last few races

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