Rule department scholar

Now they seem to have discovered a new world. Changing the structure of the partition can directly improve the efficiency of the combustion chamber.

This must be taken seriously.

In addition, Yuan Haitao and Zhou Qing also had a sense of participation, especially Yuan Haitao. He didn't know much about the structure of the combustion chamber. If he was in a scientific research base, he would not be considered at all in similar research, and he would not even have the opportunity to participate.

It's different now.

He also participated in the discussion of the structural design of the partition, and occasionally put forward his own opinions. He was always ignorant in the process, but he just had the feeling that "the final design is related to me".

In fact, Zhao Yi just took care of their emotions.

In the process of perfecting the partition structure, he can quickly draw conclusions relying on system capabilities, but he can't do everything by himself. It doesn't mean that the results must be shared with others. Yuan Haitao and Zhou Qing still play a big role , They helped to explain a lot of basics, and also helped to improve the conditions needed to use the ability, and they also played a role.

So Zhao Yi still took care of the emotions of the two of them, and just expressed his thoughts and designs in the form of dialogue and discussion.

Then there is verification.

At the beginning, Zhou Qing would still do rough calculations and verifications, but later he simply stopped doing it because he found that doing any calculations in front of Zhao Yi was like playing a big knife in front of Guan Gong——

Ridiculous!

Zhao Yi often arrives at a more accurate result by just doing casual calculations for the conclusions that he has worked hard to calculate for a long time.

"This is too genius!"

"Sure enough, he is a top mathematician. In terms of computing power, he is probably the number one in the world..."

Zhou Qing secretly sighed.

Zhao Yi spent about two days demonstrating the partitions of the combustion chamber, and even made simple design corrections for the most inconspicuous partitions.

Zhou Qing carefully recorded all the conclusions, and then began the detailed settlement.

He is how much performance improvement the calculation will bring overall.

The change of each partition will improve the performance, but for the overall improvement, it still needs to be calculated in detail, and it is a very complicated calculation, because it involves the influence between each other and the effect of the final discharge. The intensity of the working environment will also bring different results.

This time Zhao Yi also made calculations very seriously, he had to consider various factors.

In the end the two came to different results.

Zhou Qing said a little excitedly, "The last data I calculated is that the highest-intensity working state can increase the explosive performance by 15.00%." Sufficient circumstances.

"Is it that high?"

Yuan Haitao was still unbelievable.

"This value is too high." Zhao Yi shook his head and said, "The result of my calculation is about eleven points."

"11.00% is not too low!" Yuan Haitao commented.

Zhou Qing did not study why there was a numerical gap, but said excitedly, "Ten percent is very high. The most important thing is that if the efficiency of the combustion chamber is really improved, it will bring a higher power."

"Correct!"

Yuan Haitao also nodded fiercely.

Do not underestimate the 20.00% increase in maximum performance. It is simply a calculation of the impact of maximum performance. A [-]% increase in performance does not mean that the maximum speed of the aircraft is [-]%, but [-]%, [-]%. , or even higher, because the propulsion and top speed are exponentially increasing.

Of course.

In fact, there are many factors that affect the speed of an aircraft, and the efficiency of the combustion chamber is only one of them. If the other components are not matched, it does not matter how high the efficiency of the combustion chamber is.

This is also the reason why the Kunlun engine group does not pay much attention to the efficiency of the combustion chamber. Of course, they know that the higher the efficiency, the better, but high efficiency does not necessarily mean high power, and may cause other problems.

For example, the strength pressure of turbine blades.

When Zhou Qing and Yuan Haitao calmed down, they immediately discussed this issue with Zhao Yi. High efficiency of the combustion chamber is not necessarily a good thing. live.

Yuan Haitao brought up the issue of turbines, Zhao Yi was not surprised at all, even if they didn't mention turbines, he was ready to improve the structure of turbines next.

The structure of the turbine is actually a trivial matter, and there is no difficulty for Zhao Yi. The construction of several blades, how to design the most reasonable, "Contact Rate" can give a very complete plan, even if there is no perfect plan, "Monitoring Laws can also be used to amend the original plan.

However, the key issues mentioned by Yuan Haitao and Zhou Qing are the high temperature resistance and strength of the turbine blades.

The principle of the turbine of an aero engine is very similar to that of a turbocharged engine of a car, which uses exhaust and fluid to impinge on the impeller to rotate to generate power.

Whether it is the air flow brought by high-speed flight, or the high temperature and high pressure generated by the combustion chamber, the purpose is to increase the exhaust velocity to allow the turbine to achieve high-intensity operation.

For the turbine of an aero engine, the most critical technology is the blade material, and the turbine blade is also one of the three high-pressure components of an aero engine.

Turbine blades will provide huge power at the cost of bearing high temperatures far exceeding the melting temperature of their metals and centrifugal tensile stresses exceeding [-] Newtons. high strength.

"Under the premise of the same design level of the engine turbine and fan, every time the temperature in front of the turbine increases by 100K, the thrust will increase by 15.00%."

"This is where we are limited!"

Yuan Haitao explained earnestly, "High temperature is the first hurdle for turbine blades. The temperature can easily be one or two thousand degrees, or even higher. High-efficiency blades cannot be designed to be solid. Hundreds of thousands of chips need to be stamped on one blade." A cold air channel hole."

"This will increase the strength of the material."

"For the engine developed now, the material limitation is not only the power, but also the lifespan. If this prototype is installed on a fighter plane, it can only work for a maximum of [-] hours, and the actual use may be even lower!"

The core of Yuan Haitao's explanation is that 'the material of the turbine blade is a major problem that restricts the efficiency and life of the engine, and at the same time, it has not been resolved until now'.

Zhao Yi had learned about some relevant content before, and after hearing the detailed explanation, he understood better. He asked, "Does your R&D team not have a team that specializes in designing turbine blades?"

"With design, without material!"

Yuan Haitao said with a wry smile, "The designs are quite good. The composite blades used now are designed by them, but the alloy material department has no results. We have cooperated with the Institute of Aeronautical Materials and the Metal Research Institute of the Academy of Sciences, but there has been no result. They are Two kinds of nickel-based superalloys have been designed, but they are not enough for practical application for the time being.”

Zhao Yi frowned and thought about it.

If you want to improve the Kunlun engine, modifying the combustion chamber, or perfecting the design is one way, but due to the limitation of the material of the components, the performance and efficiency of the engine will still be limited, and some design improvements may not bring much improvement. role.

Materials are indeed very important.

Some people say that the development of modern military science and technology is to compete with the use of the periodic table of elements. Materials science is crucial, but some designs and technologies are not important, because the existing theoretical basis is sufficient to support higher-end technologies. .

"Material, material..."

As Zhao Yi muttered, he suddenly thought of someone.

Zhang Hongtao!

Zhang Hongtao is an excellent expert in metal alloy materials. Together they imitated the alloy of the outer skin of the satellite, and they also studied the deck steel of the aircraft carrier together at the aircraft carrier scientific research base.

"It's okay if it's an imitation, but it's definitely impossible to find a sample that can withstand high temperature and high pressure." Zhao Yi frowned and thought.

The most advanced turbine blades in the world that can withstand high temperature and high pressure must be in the military-factory of country M, or they have already been used in aero engines and equipped on top-level fighters. I want to get such materials , unless it is to rob-rob the military-factory of country M, or simply go to the battlefield and shoot down a most advanced fighter.

"If you don't even have material samples, it will be a bit troublesome! But, this level must be passed..."

Even if it is a seemingly 'impossible' difficulty, it is directly related to the performance of the engine. If it is not overcome, no matter how perfect the engine is, it will be meaningless.

Zhao Yi did not stay in the power engineering laboratory, but went back to think carefully, then called Zhang Hongtao and asked him to come here and ask about the situation carefully.

Zhang Hongtao is a well-known material expert in China and has also participated in major national alloy material projects. He is a special expert in the material department of the aircraft carrier scientific research base. He has been trying to imitate deck steel recently. It can also be said that he is an "alloy material imitation expert".

Zhang Hongtao's research has indeed yielded results recently.

When he was at the aircraft carrier scientific research base, he and Zhao Yi analyzed the steel samples together. Zhao Yi made a few small suggestions, which were carefully recorded by Zhang Hongtao.

When he returned to the alloy material laboratory, he tried to develop a new type of high-strength steel based on Zhao Yi's opinion and his own ideas.

He has achieved certain results.

Although he did not produce a material with the same strength as the sample steel, he developed a material with lower performance, which was barely usable when it was not as good as the sample just now.

Zhang Hongtao can be said to be 'comfortable' with this achievement.

From visiting the aircraft carrier scientific research base to the present, not much time has passed. He can develop a deck steel that is "barely usable". Even if it cannot become the "best choice", it is quite remarkable. The material department of the base almost offered up Zhang Hongtao as a bodhisattva, directly saying that he could meet all his research and development requirements, and helped to apply for the highest contribution award. At the same time, he also hoped that he could continue to work hard to carry out research, and strive to make a deck with the same strength as the sample material as soon as possible. steel.

When receiving a call from Zhao Yi, Zhang Hongtao was talking to the old professor Wang Zhifang about the "development ideas of imitation alloy materials", and several colleagues followed him carefully, "The most important thing about metal alloy materials is the ratio of elemental composition. Knowing the nature of each element and the possible changes after it is added is the most basic, some normal elements, of course, needless to say, but some, especially rare metal elements, we still know very little about.”

"Technetium is one of them. This element is very strong, but if it is used too much, one will increase the cost, and the other may make the material brittle..."

"If you find that the research doesn't work, you can think in other directions, for example, the manufacturing method. Last time I..."

Zhang Hongtao kept talking, and when he was thirsty, someone offered him water, and he found that he enjoyed this feeling very much.

The old professor in front of me is Wang Zhifang. He was awarded the academician of the Academy of Engineering ten years ago. He is the pillar of materials science in the University of Aeronautics and Astronautics. There are also several colleagues who are older than him and have higher qualifications. They all gathered around and listened. He 'taught' R&D experience.

What is success?

This represents success!

Now he is only 33 years old. At the age when many people have just graduated with Ph. D., he is already a preparatory professor, and he is considered the top metal alloy material expert in China.

Life seems to have reached its climax!

Zhang Hongtao has been "low-key" for more than 30 years, and worked hard to get the title of "Cheung Kong Scholar". What he likes to contact and communicate with others is just to pursue something different. He hopes to make a big career and truly achieve something he is proud of.

"Now, my goal in life seems to have been achieved?" Zhang Hongtao couldn't help but feel this way.

"Beep beep..."

The phone rang.

Zhang Hongtao took out his mobile phone and looked at it. When he found the number on the screen, he made an apologetic gesture towards the others, walked to the door and connected the phone.

"Brother Zhang, it's like this..."

Zhao Yi had a brief talk with him and asked him to visit the Power Engineering Laboratory of Yanhua University.

Zhang Hongtao immediately nodded and said, "I'll be there in the afternoon."

After returning to the office, other people asked about the phone call. Zhang Hongtao said, "It's Zhao Yi, Academician Zhao."

"Academician Zhao? What do you want?"

"This one……"

Zhang Hongtao looked around and did not continue.

Others also knew that a certain degree of confidentiality might be involved, so they didn't continue to ask, and went to their own business.

Only Zhang Hongtao and Wang Zhifang were left in the office.

Wang Zhifang asked, "What's the specific matter?" He is an academician of the Academy of Engineering, and he is almost 70 years old. He also specializes in alloy materials and participates in national projects, so he is not worried about confidentiality.

Zhang Hongtao whispered, "Turbine blades."

"Turbine blades?"

"Yes." Zhang Hongtao nodded and said, "Academician Zhao wants to find me to cooperate in the research and development of turbine blade materials."

Wang Zhifang shook his head and said, "It's nothing to go and have a look, but don't agree to it. I know about this. The research and development of turbine blades is too difficult, and it is not at the same level as the deck steel you are making now. The Academy of Sciences and the Institute of Alloy Engineering Many experts, now only single crystal nickel of DD5 and DD6, only high temperature resistance but not enough strength, want to develop blades for high-end turbine engines... Difficult!"

The word 'difficult' says it all.

Zhang Hongtao shook his head and said, "Professor Wang, I can listen to you on other matters. In this matter, if Academician Zhao wants to develop it, I will definitely cooperate. It doesn't matter whether it can be developed in the end."

"Why?" Wang Zhifang was a little puzzled.

If a lot of effort is put in and nothing can be researched in the end, isn't it a waste of time and energy?

Zhang Hongtao said, "Because, that's Academician Zhao!"

"Because it's Academician Zhao?"

Wang Zhifang couldn't figure it out after careful consideration. Even if Zhao Yi is a 'national treasure' talent, what's the point of sacrificing time and energy in the face of an 'impossible research and development'?

In fact, what Zhang Hongtao thought was, "It doesn't matter whether the research and development has achieved results, the most important thing is...

Have a good relationship (hug your thighs)! '

Chapter 423 Isn't that our laboratory?

Power Engineering Laboratory.

Zhao Yi was stuck with the alloy material of the turbine blades, but he did not stop improving the engine. He put aside the issue of the turbine blades and continued to discuss the structure of the turbine with Yuan Haitao and Zhou Qing.

Structure is design.

The material of turbine blades is a hard currency, which is the most basic issue, directly related to the efficiency of the engine, but the "soft power" in design is also very important, which directly affects the performance of the engine.

The most important part inside the turbine is the blade, and there are other auxiliary gears, shafts and the like, which drive the blade to rotate. The design of the blade and other components are coordinated together to make the turbine run.

The design of these complex components is a very significant problem.

The research and development team of the Kunlun engine came up with several proposals, and finally selected one with a better argumentation. But in reality, because there is no prototype for reference, the argumentation of each component is very complicated, and there is not enough theoretical support. Under certain circumstances, the final plan they come up with is not necessarily better than the eliminated plan.

So the most important thing is the 'theoretical question'.

Zhao Yi also has no way to directly obtain a perfect plan, because the data involved in formulating the plan fluctuates too much, resulting in a huge amount of calculations. Even the top supercomputers cannot come up with the so-called 'perfect plan' .

When it is found that it is impossible to come up with a complete set of perfect design solutions, it is simply decided to improve it little by little. For example, when accepting the design of the turbine blade, expand to the parts connected next to it, and gradually improve it little by little until the last one. part.