Chapter 986: Aerodynamics

Remember in a second [Wanben Station] Mobile phone users enter the address: m.xinwanben.com

Chapter 986 Aerodynamics

Liu Changyun looked at everyone, and then explained why he called Zhao Zhongyao here.

After everyone listened, they knew why Zhao Zhongyao appeared here.

Zhou Quancheng saw that Zhao Zhongyao was here, so he thought: "You Zhao Zhongyao is here, so what's the matter. What is the plane you designed! I'm going to see today, how you treat you The plane speaks for itself."

After Liu Changyun said what he just said, he looked at Zhou Quancheng again and said, "Expert Zhou, if you have any questions, you can ask Expert Zhao, and he will give you a satisfactory explanation."

After hearing Liu Changyun's words, Zhou Quancheng smiled again, looked at Zhao Zhongyao and said, "Expert Zhao, I and several other experts have also seen your new fighter design. We feel that the design you designed This new type of fighter is really not very good. Not only is it weird in appearance, but it also violates the principles of aerodynamics. I really don’t know how you can design such an aircraft. This aircraft can only be found in the drawings Let’s show it to everyone, if it is made into a real plane, it will be impossible to fly.”

After hearing Zhou Quancheng's words, Zhao Zhongyao smiled and said, "Haha, Expert Zhou, I don't know what you think. I don't know, do you know what aerodynamics is?"

Zhao Zhongyao had already thought about how to deal with these old guys. So, once he said it, it would not be difficult for these old guys to save face.

When Zhou Quancheng heard Zhao Zhongyao's words, he immediately became angry: "Hehe! Really! Several of us aviation experts don't understand aerodynamics. What are you talking about. If we don't understand air Dynamics, how would you know that the geometry of the aircraft you designed is not aerodynamic."

After hearing Zhou Quancheng's words, Zhao Zhongyao smiled again and said, "Haha, really! Since you know what aerodynamics is, why do you still say that the plane I designed is impossible to fly."

"Zhao Zhongyao, how do you want me to explain it to you? When we were in college, we majored in aircraft design. It can be said that we all came from majors! And you! Before you, you were just a designer. Firearms specialist.

To put it bluntly, you are just a gun guy. You said you can't be a good gunsmith, why do you have to design airplanes! Can you design an airplane? After two months of studying in that so-called "Zhuhai Aviation Academy", do you feel like an aircraft designer? Don't you think that your thinking is ridiculous.

Others have to learn knowledge for several years, can you finish it in two months! You only study for two months, what else can you learn! I can see that you haven't even scratched the surface of designing an airplane. You designed this plane, it's all nonsense, it's impossible to fly.

I really don't understand how you can design such a weird looking plane. Even if you don't know how to design, you can't design it like this if you have a gourd painting! "

Zhou Quancheng himself couldn't figure it out. He also didn't understand how Zhao Zhongyao could design such a weird-looking plane. It is completely beyond the imagination of ordinary people. Not to mention ordinary people, even he, an aviation expert, couldn't imagine how Zhao Zhongyao thought of designing the fighter plane in such a strange way.

After listening to Zhou Quancheng's long-winded words, Zhao Zhongyao laughed again and said: "Haha, Expert Zhou, there are many things in this world that you may not know, or have never seen at all. When you one day , When you see something you haven’t seen yourself, do you feel that this thing is strange. It should not appear in this world. This is your opinion on this aircraft I designed! I just want to Here are four words for you—to make a big fuss."

After hearing Zhao Zhongyao's words, Zhou Quancheng glared at him again and said, "What do you mean? I made a fuss. But please explain to me how your plane was designed. Also, you said We aviation experts don’t understand aerodynamics. Then you, a military expert, explain to us what aerodynamics is so that we can gain some knowledge. We aviation experts are just pretenders. None of us understand aerodynamics, nor have we studied aerodynamics."

When Zhou Quancheng heard Zhao Zhongyao's words, he was also a little angry. He was thinking, maybe this Zhao Zhongyao is just a fake guy, maybe he doesn't understand anything at all. He just wanted to show off himself, so he designed a random plane, saying that it was the most advanced plane in the world. He just wanted to show off in front of the leader.

After hearing Zhou Quancheng's words, Zhao Zhongyao smiled again and said: "Haha, well, since this is the case, then I will teach you so-called aviation experts a lesson! I feel that what you have learned before Aeronautical knowledge may be outdated.”

"Okay, well said, the knowledge we have learned is outdated, then tell us some new aviation knowledge!" Zhou Quancheng looked at Zhao Zhongyao dissatisfied and said.

"Okay, listen up, all of you." Zhao Zhongyao looked at Zhou Quancheng and the others, thought for a while, and then began to explain.

"Aerodynamics is a branch of mechanics that studies the force characteristics of aircraft or other objects in relative motion with air or other gases, the flow laws of gases and the accompanying physical and chemical changes. It is the basis of fluid mechanics In fact, it is a discipline that has grown up with the development of the aviation industry and jet propulsion technology.

The content of aerodynamic research is generally referred to as the velocity and temperature of gas in the flow field of aircraft, missiles and other aircraft under various flight conditions.

, pressure and density and other parameters, the aerodynamic forces such as lift and drag on the aircraft and their changes, the physical and chemical changes between the gas medium or gas and the aircraft, and the heat and mass transfer laws. In this sense, aerodynamics can be classified in the following two ways.

First, aerodynamics can be divided into low-speed aerodynamics and high-speed aerodynamics according to the speed range of fluid motion or the flight speed of the aircraft. Usually roughly 400 km/h, this speed is used as the dividing line. In low-speed aerodynamics, the gaseous medium can be regarded as incompressible, and the corresponding flow is called incompressible flow. For flows greater than this speed, the influence of the compressibility of the gas and the change of the thermodynamic properties of the gas must be considered. This flow corresponding to high-speed aerodynamics is called compressible flow.

Second, according to whether the viscosity of the gas medium must be considered in the flow, aerodynamics can be divided into ideal aerodynamics and viscous aerodynamics.

Generally speaking, the study of aerodynamics is divided into two aspects: theory and experiment. Both theoretical and experimental research are closely integrated with each other and complement each other. The general principles on which theoretical research is based are: kinematics, following the law of conservation of mass; dynamics, following Newton’s second law; energy conversion and transfer, following the law of energy conservation; thermodynamics, following the first and second laws of thermodynamics ; In terms of medium properties, follow the corresponding gas state equation and the change law of viscosity and thermal conductivity, etc. "

Zhao Zhongyao looked at Zhou Quancheng and several aviation experts, and explained to them what he knew about aviation.

Some of this knowledge was relearned by him in the 'Zhuhai Aviation Academy'. Some of them were also known to him in the world before his death.

After Zhao Zhongyao explained these theoretical knowledge, he took the blueprint of the stealth fighter he designed and explained: "This new fighter I designed this time, although it looks weird, it is still aerodynamic. In principle. If it is designed as a real airplane, it will definitely be able to fly.

Don't look at the geometric appearance of this aircraft, but it still conforms to the principles of aerodynamics. As long as the research is successful, you can soar into the blue sky. The reason why I want to design this aircraft into a geometric shape is mainly for stealth reasons.

As I said, there is a big difference between this new type of fighter I designed and ordinary fighters, that is, it can avoid the reflected waves of air defense radar. If this kind of fighter plane is designed, even if it flies over the enemy country, it will not be discovered by the enemy country. Because this kind of fighter can disappear on the enemy's air defense radar display.

If the enemy's air defense radar can't detect this new type of fighter we designed, then they don't want to use air defense missiles to shoot down our new type of fighter. You said, is the new type of fighter I designed very advanced? "

Zhao Zhongyao spoke in detail and professionally. After Zhou Quancheng and the other aviation experts listened to it, they couldn't help being shocked by the aviation knowledge that Zhao Zhongyao had mastered. You know, Zhou Quancheng and the others are experts in the aviation industry. The knowledge they have mastered is almost all the aviation knowledge of this era. But after listening to Zhao Zhongyao's lecture, they felt that there were some things that they had heard for the first time. Before, no one had ever heard of it.

However, how could Zhou Quancheng be willing to admit defeat in front of Zhao Zhongyao! After listening to what Zhao Zhongyao said, he glanced at Zhao Zhongyao with contempt and said: "Expert Zhao, we all know what you said. These things are just some theoretical aspects." Knowledge.

But what's the use of you talking about it. We are all experts in aviation knowledge, if you just give us theoretical things, I'm afraid it doesn't make much sense! If you have the ability, can you get some real things for us to see. "

After Zhou Quancheng finished speaking, several other aviation experts also looked at Zhao Zhongyao and echoed together: "Yes! Expert Zhao, what's the use of not practicing, we still like to see some young people who are willing to work hard, and It’s not like looking at young people who can only talk big.”

After hearing what they said, Zhao Zhongyao looked at Zhou Quancheng again with a smile and said: "Expert Zhou, how do you want to practice, do you want me to develop a stealth fighter I designed right now! How is this possible? Any It takes at least three years for a new type of fighter from design to successful development. How can I develop a real stealth fighter for you right away."

"Well, you don't need to study the real fighter plane first. In my opinion, you might as well study a model aircraft fighter plane first! If you design this kind of plane, if you directly study the real plane, I'm afraid it will be a waste of manpower and material resources. At that time, you This plane is flying at all, that's not a big joke." Zhou Quancheng looked at Zhao Zhongyao again and said.

In fact, Zhou Quancheng had already thought about how to deal with Zhao Zhongyao just now. He just thought that there is no point in listening to Zhao Zhongyao's long-winded theories. Since he said that the fighter he designed is reasonable, let him develop a model airplane to see.

After hearing Zhou Quancheng's words, Zhao Zhongyao sneered and said, "Hehe! That's right! That's really great. Before, when I was studying at the 'Zhuhai Aviation Academy', I had already designed a model I designed. This kind of stealth fighter aircraft model aircraft. If you are not convinced, of course I can design an aircraft model aircraft to show you."

"Okay! The few of us want to design a new type of fighter recently! Since this is the case, let's have a competition! Let's all design a model airplane first, and see who can design it better. How about it? " After hearing what Zhao Zhongyao said, Zhou Quancheng was of course not convinced. But he thought, if the competition is a real machine, it will take a relatively long time, why not research into a model aircraft first, and have a competition

If so, it won't happen anytime soon.

"Okay, then we can just discuss it." Zhao Zhongyao agreed with Zhou Quancheng's words with a smile.

After that, Zhao Zhongyao looked at Liu Changyun again and said, "Minister Liu, Expert Zhou wants to design a model airplane first, to compare with the model airplane I designed before. If you have any instructions, you can talk about it now .”

After hearing what Zhao Zhongyao said, Liu Changyun stood up, looked at everyone and said, "Okay, I have listened to the conversation between the two of you just now. I feel that I can't understand some of the aviation knowledge you professionals said. .

It’s just that what expert Zhou said, I think it can also be done. Researching a new type of aircraft is a large project, which cannot be accomplished overnight. It requires a series of processes from theory to practice, such as design, demonstration, development, flight test, and so on.

What Expert Zhou said just now is good, if we directly research this new type of fighter designed by Expert Zhao now, if it can’t fly at all, wouldn’t it be a waste of manpower and material resources!

Rather than doing this, it is better to develop a model airplane first, perform it, and show it to everyone. If only this aircraft model fighter performed well. Naturally, this new type of fighter can fly into the blue sky. "

Support (end this god station) to share this station with those friends who need it! If you can't find the book, please leave a message!