Super Military Scientist

Chapter 45 Atomic Engine (4)

"Really, since both of you are a bottle of dissatisfaction and half a swallow, then I will teach you both a lesson!"

Zhao Zhongyao knew for a long time that Chen Yuan and Cheng Fei would deliberately embarrass him on their first day at work, so he had already read some aerodynamics information last night.

Now Chen Yuan and Cheng Fei are indeed mocking him! Zhao Zhongyao also hit back at them unceremoniously.

After all, Zhao Zhongyao was also a top scientist in the 21st World. Even if he has never studied aircraft theory, he still knows some knowledge in this area.

Because the planes of the time he was alive were already very advanced, much more advanced than the parallel space planes he was reborn in.

The airplanes of this era are only equivalent to the level on the earth before his death in the 1970s and 1980s.

"Okay! Mr. Zhao, please speak up! We are willing to listen carefully!" Chen Yuan and Cheng Fei looked at each other and both were secretly laughing!

"Well! Then you can listen well, my theory will definitely scare you." Zhao Zhongyao got up from his desk, walked in front of Chen Yuan and Cheng Fei, and then scanned his gaze for the past. They glanced.

Both of them were a little timid in their hearts. After all, they were just Zhao Zhongyao's assistants. If they didn't give themselves the face of leadership, it would not be good for him.

The two of them didn't dare to say anything now, they just pretended to listen carefully.

"The so-called aerodynamics is the study of the problem of the air viscosity of the aircraft in the air. In other words, the problem of how the aircraft overcomes the air resistance and then flies in the air.

To learn aerodynamics, we must first understand some basic knowledge.

The most important point of these basic knowledge is to know what air is.

All life on our planet lives in air, and air is the first condition for our survival.

The main components of air are nitrogen and oxygen. Among them, nitrogen accounts for about 78% of the atmosphere. Oxygen accounts for about 21% of the atmospheric composition, and some hydrogen, helium, ---- about 1%.

In this way, the most important gas in the air is nitrogen. But what mankind depends on for survival is not nitrogen, but oxygen.

Not only do we humans need to breathe oxygen to survive, but even cars running on the surface of the earth and airplanes flying in the sky need to breathe oxygen. Without oxygen, these iron guys would not move at all.

However, the oxygen decreases as the altitude increases, and the oxygen content on the plateau is much less than that on the plain.

In the atmosphere, only the troposphere contains a large amount of oxygen, while in the stratosphere, the oxygen content is already very scarce.

Ordinary airplanes can only fly in the troposphere, and only airplanes made of jet-powered engines can fly above the stratosphere.

Due to abnormal air flow in the troposphere, there is no fixed route, and there are often severe weather such as storms and thunder and lightning. Therefore, ordinary airplanes can only fly when the weather is good. In severe weather, they will be banned.

Above the stratosphere is the ionosphere. The temperature in this layer is very high, with an average temperature above 400 degrees Celsius. The highest can reach a thousand degrees. The air here is all ionized.

It is impossible for ordinary airplanes to fly to this height. Only special space shuttles and spacecraft, as well as space probes, can fly over this space.

Above the ionosphere is the dissipation layer.

This is the most transported space of the atmosphere, and the air density is extremely small. The temperature is also very low, and it is impossible for any aircraft to fly into this space. Only spacecraft can fly from here to interplanetary space.

Knowing the composition and composition of air, we will know that the most suitable altitude for an airplane to fly is above 10 kilometers. This is the stratosphere and the atmosphere is very stable.

But the air here is thin and the temperature is very low, usually around -56 degrees Celsius. Ordinary engines simply cannot work here. Only advanced gas-fired turbines can work here.

Therefore, we want to study more advanced aircraft, mainly to study a more advanced engine.

For any vehicle on earth, the engine is the most important component. The engine is their heart. Without an engine, any vehicle is a pile of scrap iron.

Of course, for the aircraft, the shape design is also very important. As I said before, because the air density is different in the troposphere, an air layer is formed. When an airplane flies between air layers, it is affected by the viscosity of the air.

If an airplane wants to fly fast and steady in the air, it must be designed to reduce air viscosity. Like, we designed the shape of the airplane's wing into the shape of a bird's wing, which is precisely the principle that the air viscosity can be reduced when birds fly.

But anyway, if an airplane wants to fly from the ground, it cannot be done without an engine. When flying in the air, the engine needs to be working normally at all times. If there is a problem with the engine, the plane will only fall from the air like a pile of scrap iron.

So, when we study airplanes, the main thing is to study engines. Only if the engine is improved, can the aircraft be truly improved. If the engine is not improved, but the appearance is improved, it won't make much difference.

Take for example the need to overcome air viscosity! Improved shape is helpful to reduce air resistance. But this is not a fundamental solution. If the power and performance of the engine can be improved, and the driving force of the engine can be improved, then what is the viscosity of the air!

Well, let me just say so much! I don’t know if the two of you listened to it, if you have gained anything! "

Zhao Zhongyao explained in detail the composition of the air and how the aircraft flies in the air. He also pointed out that the development of new engines is the key factor in improving the aircraft.

When Chen Yuan and Cheng Fei heard this, they were a little dumbfounded. Originally, they thought, Zhao Zhongyao knew aerodynamics at all.

Unexpectedly, these explanations of others have not even been heard by these two experts. They have never heard of these new terms like spacecraft, space shuttles. I didn't understand how Zhao Zhongyao knew.

"Oh! Mr. Zhao, what you said is really good. We didn't expect that Zhao is always an all-rounder! Not only knows about the atomic bomb, but also knows so much about aircraft manufacturing and aerodynamics!"

From the bottom of his heart, Chen Yuan respected the young man in front of him.

"Yeah! Mr. Zhao, now I finally understand what the ancients said! "Listen to the words of the monarch, better than reading ten years!" Cheng Fei also admired Zhao Zhongyao very much, feeling that Zhao Zhongyao really It's a well-deserved reputation!

"Mr. Zhao, since you know so much about the power of the aircraft, then I have a suggestion. I don't know whether Mr. Zhao is willing to listen!" Chen Yuan looked at Zhao Zhongyao, with a strange smile that was not easily detectable.