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【速搜问答】扰流板的作用是什么

问答 admin 8个月前 (04-05) 145次浏览 已收录 0个评论

汉英对照:
Chinese-English Translation:

因为汽车类似于飞机机翼的形状,所以当汽车在道路上高速行驶时,汽车会得到一个升力,这个升力极易对车辆的行驶稳定造成影响。而扰流板的结构正好与飞机的机翼相反,所以其在跟随车辆高速行驶时便能为车辆提供一个下压力,从而能够做到克制车辆升力的作用。

The shape of a car’s wing is similar to that of a car’s wing when it’s driving at high speed, so it’s very easy to get the lift of a car when it’s driving at high speed. The structure of the spoiler is just opposite to the wing of the aircraft, so it can provide a downward pressure for the vehicle when it follows the vehicle at high speed, so as to restrain the lift of the vehicle.

相信很多车主都见到过在赛车的尾部会有一个大大的尾翼,而这个尾翼的学名,就是我们标题中的扰流板,那么这个扰流板的作用是什么呢?

I believe many car owners have seen that there will be a big tail in the rear of the car. The scientific name of the tail is the spoiler in our title. What is the function of the spoiler?

学过流体力学的同学们应该都了解过“伯努利效应

Students who have studied fluid mechanics should have known about the Bernoulli effect

伯努利效应

Bernoulli effect

伯努利效应是由“流体力学之父”丹尼尔·伯努利在 1726 年提出的一个理论。其理论简单的来说就是“当流体速度越快,物体与流体接触界面上的压强就会越小,反之压强就越大。”

Bernoulli effect is a theory put forward by “father of fluid mechanics” Daniel Bernoulli in 1726. The simple theory is that “when the fluid velocity is faster, the pressure on the contact interface between the object and the fluid will be smaller, otherwise, the pressure will be larger.”

我们所熟知的飞机之所以能够在天空中自由的翱翔,所用运用的正是这个原理。我们来观察一下飞机机翼的剖面图。

The reason why we are familiar with the aircraft can fly freely in the sky is based on this principle. Let’s take a look at a section of the wing.

我们可以看到,飞机机翼是个下平上凸的形状,这个形状使得空气在机翼上方的流速要大于下方,即机翼下方的压强要大于上方,这就为飞机提供了一个升力,随着飞机在跑道上前进的速度越来越快,这个升力也就越来越大,最终飞机便靠其飞向天空。

We can see that the wing of an aircraft is a flat bottom and convex top shape, which makes the air velocity above the wing greater than below, that is, the pressure below the wing greater than above, which provides a lift for the aircraft. As the aircraft advances faster and faster on the runway, the lift will become greater and greater, and finally the aircraft will fly to the sky by it.

现在我们再回过头来看看地面上行驶的汽车,我们会发现,汽车形状也像极了机翼,同样是上凸下平。所以,当我们的汽车在道路上高速行驶时,汽车同样也会得到一个升力,而这个升力极易对车辆的行驶稳定造成影响。

Now let’s look back at the cars running on the ground. We will find that the shape of the car is very similar to the wing, which is also convex and flat. Therefore, when our car is driving at high speed on the road, the car will also get a lift, which is very easy to affect the driving stability of the vehicle.

扰流板的应用就能够很好的克制这个升力,我们来看看扰流板的侧面形状。

The application of the spoiler can restrain the lift very well. Let’s look at the side shape of the spoiler.

我可以看到它是一个上平下凸的结构,这个结构正好与飞机的机翼相反,所以其在跟随车辆高速行驶时便能为车辆提供一个下压力,从而能够做到克制车辆升力的作用。

I can see that it is a flat top and convex bottom structure. This structure is just opposite to the wing of the aircraft, so it can provide a downward pressure for the vehicle when it follows the vehicle at high speed, so as to restrain the lifting force of the vehicle.

相信现在我们应该能够明白汽车扰流板的作用了吧。

I believe now we should be able to understand the role of car spoiler.


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