Rule department scholar

This 'appearance design drawing' is not too complicated, but because it involves a lot of circuit lines, pipes and components, it is still a bit complicated to draw.

Zhao Yi returned to the dormitory and began to draw the design drawings. It took about three hours to fully express what was in his mind on the drawings, but the specific parameters were not marked.

For example, how long is the pipe, what is the ratio, and so on.

This is mainly because the design drawings are not available for the time being, and the prototype has been disassembled into parts. When it is reassembled, or a new set is redesigned, it is also possible to do the appearance design.

Zhao Yi simply saved the picture in the computer, maybe it can be used in the future, and then continued to look at the information. He has been thinking about where to start to improve the Kunlun engine.

The initial idea was to use my own abilities, such as "Contact Rate" and "Supervisory Law", to find and solve problems for the engine, to make new designs and perfect solutions, but it was not a good choice after careful consideration.

One is that the engine is too complex.

This complexity does not mean that he cannot complete it, but that the improvement of a certain component will change the parameters of the component, which will definitely affect the operation of other components and even the entire engine.

In addition, making new designs and solutions may not necessarily be adopted, for example, technical limitations.

Even if the designs and plans he made are more perfect and more efficient than the original ones, the factory may not be able to make them, because a better plan may involve higher technology, and high-efficiency components want to be effective , perhaps using better materials.

and many more.

This is what affects the whole body.

Zhao Yi thought about it carefully, and decided to make a major revision. Since he wanted to help improve the Kunlun engine, he must strive to do his best. The same is true for his research, even in the application field.

Therefore, a process must be established for improvement. It cannot be said that the first and second parts have been perfected. It turns out that the second part is perfected, but the first part will be affected.

That definitely won't work.

Zhao Yi carefully looked at the engine design information, gained a deeper understanding of the whole, and then knew where to start.

Chapter 421 Perfect plan of combustion chamber

Power Engineering Laboratory.

The people in the project team patiently disassembled the prototype. They are already very skilled in the disassembly work. Several professional workers and engineers have no experience in dismantling the whole machine, but have experience in the installation of two or three prototypes. Learn more about it.

Prototypes are products designed for experimental research and display. Occasionally, parts will be replaced. Therefore, disassembling the whole machine into several parts and then disassembling it in detail becomes much easier and smoother.

While working, several people also discussed. An engineer named Zhou Qing said, "You say, why did Academician Zhao decide to dismantle the prototype? And all of them? If you are doing research, look at the design. It’s not enough to draw a picture and disassemble a certain part.”

"Who knows? Don't they all say it? The thinking of geniuses is different from that of ordinary people." A worker who was screwing nuts joked.

It wasn't a compliment or self-deprecating, but a little ironic.

Yuan Haitao heard a few people talking from a distance, and he came over and said, "It's really a pity that this prototype has been dismantled as a whole. But I have thought about it carefully, and it has always had problems. Various problems may be caused by something inside. Some parts are unreasonably designed and unreasonably installed, we can do a test on each part, and maybe we can find the problem."

"This is also an opportunity. If it is at the base, it must not be demolished like this."

"Right."

"Captain Yuan is right."

"Just do this. Anyway, here, there is nothing to do, we are all around this prototype."

"We still have to wait for the machine to come over..."

Yuan Haitao talked about the next work, and then reminded, "Don't talk about Academician Zhao, Academician Zhao, who is that person? A top mathematician, the world's top scholar. It has been explained above, and everything is under the command. None of our team can match Academician Zhao alone. Even Academician Zhao's age..." He stopped immediately as he spoke, and said, "Anyway, it's best not to talk about it."

Several people listened and nodded.

Although Yuan Haitao confessed that he couldn't talk about it, everyone has a gossip mind and likes to talk about things they don't understand.

Obviously.

The demolition work of the prototype is just something they don't understand. They think they are all 'professionals', and they feel that they are being dictated by 'laymen'.

Even if a layman is a top mathematician, what does it have to do with engine design and manufacture?

……

The disassembly of the prototype is coming to an end.

Most of the work is how to imitate parts, and install the latest testing and auxiliary machines, which also makes Noda's operation room very busy, because some of the machines are very heavy, and there are weapons at the door. -The police help me to be a porter.

Zhao Yi is here.

Zhao Yi came here almost once a day, because he was doing dismantling work, machine installation, etc. He basically couldn't help much, and he only stayed for a while before leaving.

This time he did not leave, but asked Yuan Haitao technical questions, and the focus of the discussion was the combustion chamber.

The combustion chamber is the part of the turbine engine that inherently provides power.

There are several types of aviation turbine engines, namely turboprop engine, turbojet engine and turbofan engine. Among them, the turbojet engine with the highest performance can be loaded on a fighter plane and can easily provide supersonic power. The highest power can make the fighter plane The speed exceeds Mach [-], which is three times the speed of sound.

However, the fuel consumption of a turbojet engine is very high, and the higher the power provided by the engine, the better, and many other issues such as practicality, fuel consumption, and battery life must also be considered.

The speed of a fighter plane can reach Mach [-], but every flight causes a lot of fuel consumption. Not only does it consume a lot of fuel, but high consumption must correspond to low battery life, and the maximum flight distance will be severely limited.

That's why there are turboprop engines and turbofan engines.

A turboprop engine can be understood as a turbojet engine with a propeller in front of it. The engine is dominated by the pulling force (thrust) generated by the propeller. The thrust generated by the jet is very small, accounting for only about one-ninth of the propeller. The advantage is high efficiency at low speed, suitable for transport aircraft, maritime patrol aircraft, etc. Due to the large rotating area of ​​the propeller, it will generate a lot of resistance when flying at high speed, so the turboprop engine is not suitable for high-speed flight.

The turbofan engine is between the turbojet engine and the turboprop engine. It can be understood that a fan is installed in front of the turbojet engine. It can provide good power and can support a speed of 1000 kilometers per hour. The disadvantage of fuel consumption is that the engine structure design and technology are too complicated.

The Kunlun engine is a turbofan engine.

The reason why it is highly valued by the country is because of the comprehensive technology research and development. For example, with the foundation of Kunlun engine technology, it is easy to take out part of it and develop the latest turbojet engine, so that the country can independently produce supersonic fighters. The principle of the propeller can be combined to develop a new type of turboprop engine, which can be used in transport aircraft and patrol aircraft.

Although the Kunlun engine is the most technically complex turbofan engine, its core of power is no different from other types of turbine engines. The most important internal components are the combustion chamber and the turbine.

When Zhao Yi mentioned the combustion chamber, he also mentioned the important point. He asked about the technology related to the combustion chamber.

Yuan Haitao also understands the design of the combustion chamber, and said with some pride, "The design of Kunlun's combustion chamber is to allow the airflow to enter in parallel and give a certain pressure. The space of the combustion chamber is increased, and the weight is reduced by using special materials. In addition , the fuel supply of the sub-divided pressure is also the key."

"Stability is the most important thing. The partial pressure oil supply of the design scheme, as well as parallel air intake, can ensure the stability of the combustion chamber, and in terms of control..."

Zhao Yi compared the materials in his hand and Yuan Haitao's detailed explanations, and he almost had a comprehensive understanding of the design and working principle of the combustion chamber. Then he asked, "When can we do the ignition experiment? Let the combustion chamber run Take a look."

"You want to know the actual parameters?" Yuan Haitao asked doubtfully.

"Correct."

Zhao Yi nodded and said, "I also want to really see how the combustion chamber works, and how to collect data."

Yuan Haitao said, "This is easy to handle. When the machine is assembled tomorrow, we will mainly make preparations for this aspect, and we can try to run it the day after tomorrow."

"it is good."

It is not a big project to operate a single combustion chamber, mainly because it is not easy to provide an auxiliary environment.

For example, simulating high-speed airflow to make the air inlet of the combustion chamber have a high enough pressure requires special machine assistance, and the problem of injecting fuel is definitely impossible to do manually, and machine assistance is also required.

In addition, data collection is not easy.

How high the power can be provided by the combustion chamber, how is the midway control situation, need to collect a lot of data for calculation.

The team led by Yuan Haitao was very efficient. He called Zhao Yi the next afternoon and said that the ignition test of the combustion chamber could be carried out that day, and Zhao Yi rushed over immediately.

After more than two hours of preparation, the combustion chamber ignition test officially started.

Several people are busy around.

Zhao Yi came closer to watch carefully, but it was hard to see anything from the outside, as if the diesel engine was working, you could only hear the sound and see the wheels turning, the burning inside could not be seen, and could only be seen. Learn from the data collected.

He was a little disappointed, but there were still gains.

The external state of the combustion chamber and the flames ejected from the back can also briefly explain some problems, at least the system is approved.

The ignition experiment didn't take long, and it ended in about 5 minutes.

The follow-up is busy cooling, sorting, recording data and so on.

Looking at the busy scene in front of him, Zhao Yi simply stood aside. He really couldn't help much in the past. When everyone was almost busy, Yuan Haitao handed over the collected data to Zhao Yi.

Zhao Yi glanced carefully and found that there was still a difference from the given parameters.

Yuan Haitao said, "The final parameters are obtained through many experiments, but it is normal for the results of one experiment to fluctuate."

Zhao Yi understood.

He thought for a while and said seriously, "Captain Yuan, I have already thought about it. The improvement of the engine starts with the combustion chamber. So the focus of our work for a while is to improve the design of the combustion chamber."

"Combustion chamber? What else can be improved in the combustion chamber?" Yuan Haitao couldn't understand.

The core technology of the Kunlun engine is the design of the turbine and fan blades and the overall control, auxiliary pressure supply, cooling technology and materials are also very important.

The least important of these is the combustion chamber.

Although the combustion chamber also has a "divided pressure zone" technology to ensure the stability of the combustion chamber, in fact, the design and manufacture of the combustion chamber are much simpler, because the structure is simpler first, and it seems that there is no way to improve it.

"I think that to improve the engine, you first need a more stable, more carefully controlled combustion chamber that can provide more energy."

Zhao Yi said very seriously, "The combustion chamber is the core of the engine. Next, we will study together how to improve it so that the combustion chamber can exert higher and more stable efficiency."

"……All right."

Yuan Haitao hesitated and did not continue to say anything, but he really wanted to see how Zhao Yi "researched" in detail.

……

Yuan Haitao didn't quite believe in Zhao Yi's ability, but he still fully cooperated with his work and helped Zhao Yi find a lot of information about engines and combustion chambers, not only turbine engines, but also other types of engines, even aircraft carrier and battleship engines The information, which must be of a certain confidential nature, was also directly found by him.

Zhao Yi quickly entered the working state, and went to the power engineering laboratory the next morning, but he did not go to the operation room, but Yuan Haitao, Zhou Qing and others discussed the structure of the combustion chamber together.

At the beginning, the oil supply technology of partition and partial pressure was discussed. The unique design is indeed very desirable.

Zhao Yi kept asking questions about details.

Yuan Haitao couldn't fully answer it. He was still another engineer. Zhou Qing had a relatively thorough understanding of this technology, and helped explain it for a long time, which also allowed Zhao Yi to fully understand it.

Then Zhao Yi carefully studied the improvement plan.

Improvements in technical design may not sound difficult, but in fact, the difficulty is still very high.

At the beginning, Zhao Yi wanted to directly study the "Contact Rate" and come up with the most perfect solution, but after using it, he found that it required a lot of energy. Just a design of the combustion chamber required so much energy, which shows that Design changes must require a huge amount of work to calculate.

"A small design requires so much work. Every plan is really the painstaking efforts of researchers!"

Zhao Yi decided to come here with emotion. He didn't need to design the combustion chamber very, very perfectly. As long as he made some corrections on the basis, it would become more stable, more controllable, and provide greater power than before. It is enough, but there is no perfect application, only more perfect, he started from the details and slowly made changes.

For example, the thickness and material of partition slices.

This aspect involves a lot of knowledge, content, and even technology. Zhao Yi went to understand it in detail, and then said, "If we adopt an arc-shaped design, the middle partition will make the space on the left It is bigger than the right side, about [-]%, will it make the control more flexible?"

What he said made Zhou Qing stunned.

Yuan Haitao didn't quite understand it yet, but Zhou Qing thought about it carefully, and then he started to write and calculate.

That is also a very complicated calculation.

Zhao Yi didn't bother or give instructions, but just looked at Zhou Qing with a smile. After about ten minutes, Zhou Qing took a deep breath and nodded vigorously, "Although I didn't make accurate calculations, in general, It is estimated that the partial pressure will definitely be more stable, and the control will naturally be more flexible."

"Really?" Yuan Haitao didn't understand.

"of course."

Zhou Qing said very confidently, "The arc-shaped design can be used to collide with the material of the partition sheet, and there is a buffering process instead of directly hitting it. It would be better if it was a semicircle, but considering that the semicircle occupies It is almost impossible to have enough space, so we can only bend the partitions a little.”

"It is still necessary to calculate the best amount of bending. I think this is very meaningful and valuable!"

Zhou Qing was even a little excited as he spoke.

Zhao Yi said calmly, "Since it is meaningful, let's calculate it in detail."

This time Zhao Yi participated in the calculation.

After Zhao Yi participated, Yuan Haitao and Zhou Qingcai realized what is called 'super fast computing power'. There are many things they need to calculate carefully. Zhao Yi seemed to think about it, and immediately got the result. They went to verify and found The result is exactly right.

In terms of pure calculation, they can't keep up at all.

Zhao Yi explained to them while doing the calculations. The super fast speed made them unable to keep up with the train of thought, so they simply gave up and waited for the results. After about half an hour, the calculations came to a conclusion.

Zhou Qing hurriedly recorded the results, and he said excitedly, "I think this can be reported. In the future, the partitions of the combustion chamber will be designed with arcs..."

"Not yet."

Zhao Yi waved his hand and said, "Just now we only discussed one partition, and there are many more in it. I think we can discuss each of them in a targeted manner, so as to come up with the most perfect plan."

"Yep!"

This time Yuan Haitao and Zhou Qing could only nod along.

Chapter 422 Hugging your thighs is the most important thing!

For the next two days, Zhao Yi was in the power engineering laboratory, discussing the partition structure of the combustion chamber with Yuan Haitao and Zhou Qing.

Both Yuan Haitao and Zhou Qing were very excited. The design of the engine combustion chamber did not consider the structure of the segmented plates. In other words, the original design believed that the structure of the segmented plates had little impact on the overall engine design. Even the combustion chamber was not paid attention to. Parts, not to mention partition slices.