Ferrari's Spanish Updates
法拉利西班牙站升级


2015-05-12 07:48:32
Matt Somerfield


As Formula One returns to Europe the teams see it as a good opportunity to bring bigger upgrade packages. Having been unusually quiet in the opening rounds Ferrari had a raft of updates for the SF15-T in Spain. (Please click on the links below to view more detailed images of each update)
F1返回欧洲战场，车队将此视为大升级的良机。在第一阶段比赛中异常安静的法拉利在西班牙为SF-15T进行了一次大升级。


The front brake ducts featured a new inboard fin with a vertical slot midway along its length (marked in yellow). The fin sheds a vortex that assists in how airflow moves around the front face of the sidepod. The crossover pipe work (marked in blue) was also increased in size, airflow collated by the scoop is passed through the slim pipework and ejected out through the wheel (green arrow), this airflow helps to control the wake shed by the front tyre.
带有一新内侧翼的前刹车管 （front brake ducts），管道长度中间有一个垂直凹槽（黄色标识）。内侧翼遮盖着一个漩涡，这有助于围绕侧箱前面气流的流动。连通管（蓝色）也增大了尺寸，被勺状整理过的气流经过纤细的管道喷射出来，这个气流有助于帮助控制前轮的尾流。


Revised bargeboards proliferated the area ahead of the sidepods, featuring slots at the leading and trailing edge of their surface. Allowing some of the high pressure to bleed into the low pressure flow behind the bargeboard, increasing their operating window and improving flow around the sidepods undercut.
改良的侧箱导流板（bargeboards） 在顶部和后缘表面存在凹槽，增加了侧箱前方的面积。这种设计允许一些高压气流在侧箱导流板后面流入低压带，增加它们的运行窗口，提升气流围绕侧箱的下削效果。


The largest upgrades came to the SF15-T's sidepods, with their geometry altered considerably (note yellow line which outlines the sidepods shape), making their design dramatically different to anything we have seen before. The bodywork clings to the upper side impact structure more closely now, along with the radiator which as we havepreviously seen is one of the most innovative parts of the SF15-T. The previous conjoined airflow conditioner and leading edge cockpit fin (Blue) have been replaced by an elongated cockpit fin (green) and an airflow conditioner that arches over to meet with the central section of the sidepod (blue). The changes are not only aimed at increasing the performance of the airflow that downwashes over the sidepod but also the rear tyres wake footprint, which should lead to an increase in downforce and reduction in drag.
SF-15T最大的升级来自于侧箱（sidepods），它们的几何形态发生了显著改变（黄色线画出了侧箱的形状），他们的设计与我们以前见过的存在非常大的差别。车体紧贴上部相关结构，现在非常紧凑，与散热器伴行，这款散热器就是我们之前看到的SF-15T上最创新的部分之一。以前的结合气流调节器和前缘驾驶舱翼片（蓝色）被一个加长版的驾驶舱翼片（绿色）替代，气流调节器拱形交汇与侧箱的中心部分（蓝色）。这些变化不仅仅为了增加围绕侧箱下洗式气流的表现，还有后胎的尾迹表现，这可以增加下压力和减少阻力。


（插图为旧版侧箱）
Further down the sidepod, the team introduced a fin just where the airflow starts to turn toward the coke bottle region (marked in yellow). We've not seen a team position a fin here post 2009, mostly owing to the regulation changes that looked to clean up the number of aerodynamic devices that can be placed around the car. The fin forms a pressure gradient that creates a vortex that'll improve flow around the sidepod and in-turn improve flow into the coke bottle. This is of particular importance as they've also reduced the size of thecooling outlets at the rear of the sidepod, raising the base of the outlet above the coke bottle, reducing its waist size in the process (shape difference marked in yellow).
侧箱的下面，车队引入了一个翼片（a fin），这个翼片就位于气流开始转向可乐瓶的区域（黄色标识）。我们在2009年后就不曾看到一个车队在这里安置翼片，主要是因为规则的改变，为了寻求让赛车上的空气动力学设置更整洁。这个翼片形成了一个压力梯度，这产生了一个涡流，这个涡流有助于围绕侧箱气流的改善，反过来改善流入可乐瓶的气流。这非常重要，因为他们也减小了侧箱尾部冷却管出口（cooling outlets），提升了出口的位置高于可乐瓶，减少了腰围（形状的不同用黄色标识）。
Ferrari have also updated the floor area ahead of the rear tyres, adding two slots ahead of the dog-legged shaped slot they already employed. These slots help to control how the airflow from the deformation of the tyre, squirts airflow laterally into the diffusers path, robbing it of consistency and therefore downforce.
法拉利也升级了后轮前方的底板区域（floor area），在他们已经使用的之字形凹槽的前方添加了两个凹槽。这些凹槽有助于控制来自轮胎的乱流直接注入扩散器，强制其保持持续性及下压力。


The rear brake duct housings were also revised by the team, with the upper horizontal control vane amended, the angle of attack was increased and split into two sections rather than one (marked in yellow). Meanwhile, at the rear of the brake duct housing the team removed the vertical inboard fence. Both of these changes are designed to improve the aerodynamic operating window of the brake duct, whilst improving the upwash of flow, assisting the other airflow structures in the region.
车队也修改了后刹车管道的外壳，修正了上方水平控制叶片（upper horizontal control vane），攻角增大，并分割为两个部分，而不是从前那样的一个（黄色标识）。同时车队从后刹车管道外壳上去掉了垂直内侧栏 （vertical inboard fence）。这些变化都是设计来用于提升刹车管道的空气动力学运行窗口，同时增加上洗气流，帮助此区域内其他气流整理成型。


Mounted to the diffuser gurneys support you'll now find another pair of winglets, these are another first, introduced to assist not only the brake ducts ahead but also the diffuser, upwashing the airflow they receive. The periphery of the diffuser is perhaps the most sensitive area, as not only does it have tyre squirt to contend with but has a steeper angle of attack than the central portion, meaning flow detachment can be an issue. The use of these small winglets above the outboard section of the diffuser will likely improve stability.
在扩散器轮床支撑底座，你现在可以发现另外一对小翼片（winglets），与先前引入的那一对一起，一方面这可以帮助前方的刹车管道，另一方面有助于扩散器整理它们得到的上洗式气流。扩散器的外援可能也是最敏感的区域，因为不止要应对来自轮胎的气流，而且比起中央部分有更加陡峭的攻角，这意味着气流的分流可能会是个问题。这些位于扩散器外侧的小翼片可以提高稳定性。



Lastly, having previously employed two rear wing gradient slots per endplate in the latter part of 2014 and in testing earlier this season, the team had more recently run with just asingular slot. Minor changes were made to the mainplane and top flap, along with the their angle of attack requiring the secondary slot to make a return in Barcelona. The idea of the slot is to provide additional flow stability to the underside of the mainplane and top flap, whilst changing the way in which the tip vortex rolls up, maximising downforce and reducing drag.
最后，在2014年末和本赛季早期测试期间使用的尾翼双梯度凹槽终板被引入，车队最近都只使用了单凹槽设置。在主板和顶盖出现了微小改变，以及它们的攻角要求在西班牙站引入第二个凹槽。这个凹槽的意义在于进一步提供主板和顶盖下方气流稳定性，同时，改变了末梢湍流卷起的方式，增大了下压力，降低了阻力。


This vast array of changes for one GP is something that Ferrari simply couldn't have attempted in seasons gone by and alludes to a renewed confidence in their CFD, wind tunnel and simulation programme. However, an aero update of this size is difficult to get working out of the box and so I suspect we'll see further progress made over the coming GP's. Mercedes meanwhile also introduced several upgrades, which means that even with a package as large as the one we have just seen the Scuderia produce, making headway into their lead proves difficult. Sebastian persevered with the new package throughout the entire weekend whilst Kimi retained the old configuration for qualifying and the race, with the exception of the twin gradient slot rear wing.
这种为了一站比赛而大规模升级是因为法拉利不想随着赛季进行而一一尝试，以及这意味着他们对自己的CFD、风洞和模拟器程序信心满满。然而，这种规模的空气动力学升级却很难收效，所以我推测我们将会在接下来的几站比赛中看到进一步的提升。同时梅赛德斯也引入了几个升级，这意味着即便是像法拉利那样大规模的升级包想要取得威胁到梅奔领先地位的进步还是非常困难的。Seb在整个周末都用了新升级件，而Kimi在排位赛和正赛中保留了旧版套件，除了安装了新的双梯度槽尾翼。
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