Chapter 158 In the United States?!

Two days later, Chen Nian took a special plane to the Chengdu Plain as planned, landed directly at the military airport, and then changed to a special car to go to the 611 Institute.

Yang Wei had been waiting for a long time. When he saw him get off the bus, he didn't care about anything and welcomed him into the air-conditioned office.

These days, not all enterprises and institutions have air conditioners, especially military industrial units. Under the influence of some inexplicable thoughts, they always think that they can endure hardships more than others. Therefore, in many relatively backward areas, air conditioners are not really available.

Necessities like that later.

At least when he was in Institute 601, Chen Nian had never seen a few air conditioners.

But in the 611 factory, almost all indoor spaces are air-conditioned, making the environment much more comfortable than in the 601 factory.

"Sit down, let's have a cup of tea first?"

Yang Wei personally helped pour water for Chen Nian, and then asked his secretary to go down and arrange lunch. His attentive attitude actually made Chen Nian feel a little embarrassed.

"Mr. Yang, you don't have to be so polite. I don't know what to do if you are so polite."

"What else should I do? This will be your home from now on, come anytime you want!"

Yang Wei chuckled and handed the tea to Chen Nian.

"This is very certain. He went to the United States after graduating from Western Polytechnic University. His original plan was to return to China within three years, but you also know the situation there."

Chen Nian replied seriously.

"I want to find someone."

It took more than an hour for Chen Nian to finally understand all the 611 tools, and the speed amazed Yang Wei.

He clearly remembered that later, around 2015, it was Chen Yunyong who led Chengdu Aircraft's thrust fan project and achieved breakthrough progress in just two years.

"If we absolutely need him, we can try to contact him, but it's very difficult to do so."

"Okay, I'll help you find it."

"It's easy to learn the tools, but it's hard to know how to use them. By the way, Mr. Yang, I have a request, can you help me?"

Not only these, but also the later Nastran, FLUENT, and LS-DYNA, he can be said to be at his fingertips.

"So, to really achieve our goal, we have to go up a step and go directly into the realm of bipolar counter-rotating fans."

"This technical step is very steep. If we want to climb up, we can't even find a place to step on."

The specifications of this reception really surprised Chen Nian.

With this point in mind, it is much simpler to calculate the total pressure ratio data required by the lift fan.

In the afternoon, Chen Nian immediately threw himself into work. In order to familiarize him with the environment and work system as soon as possible, Yang Wei personally took charge of him.

For example, just a lift fan involves many aspects such as wake extension, exit diversion, incoming flow combing, etc.

But there is really nothing we can do about the lift fan.

"I understand, don't worry about this."

At that time, international units participating in the project included VITAL, Roscosmos, German DLR, SNECMA, 606, Liyang Aviation Development, etc. The latest genetic algorithm was even introduced in the process, which shows how difficult these problems are.

"Enough!"

Chen Nian nodded quickly and continued to ask:

"Can you tell me first, what specific information is included?"

You know, Shen Fei did not have a thrust fan project, but from the establishment of the project in 1995 until the year he traveled through time, it did not make any splash.

I don't know, how do you know?

Chen Nian looked at Yang Wei, the two looked at each other and suddenly laughed in tacit understanding.

"His procedures have never been completed. So far, he has been detained for five years."

"Young people are young people. They learn so fast. It took me a month to figure out this system myself."

It's really not that simple if we just rely on our own strength to solve it.

"Difficult? Why?"

"I understand, I'm just complaining, don't take it seriously. What can I have for lunch?"

Although the nature of the event is similar to the fault tolerance factor in the previous AGT110 model, and the correct data can be obtained through the traversal method, or the exhaustive method, on this issue, the difficulty of exhaustive analysis is definitely not comparable to that of the AGT110 model.

"The reason is very simple. What we have previously studied are conventional lift fans with a rotor + stator combination. This kind of fan is large in size, has a great impact on the aerodynamic shape of the aircraft, and also restricts the improvement of the aircraft's load-carrying performance. It is not in line with our requirements for the fourth-generation carrier-based Machine expectations.”

If you want someone to carry it on your shoulders, you must have a shoulder pole and a rope.

broken!

Look at Chen Nian's attitude.

Fingers are flying, all kinds of shortcut keys are familiar, just from the aspect of using the software, it is much better than myself.

Although the mechanical structure is not simple, especially the manufacturing of the transmission system, it can almost be said to challenge the limit of China's processing capabilities at this stage, but as long as there is a way to go, it doesn't matter.

"However, when I left the Blade Laboratory of NPU, he had just entered, so we can't say we have a deep friendship."

Therefore, when Yang Wei raised this question, Chen Nian immediately felt a pressure.

"Say! If you have any requests, just ask, I will try my best to solve it for you!"

"Rough aerodynamic layout, center of gravity data, design direction, a small amount of body material information, that's it, nothing else."

"Uh, just eat something?"

Two more difficult points with almost no solutions.

Although it is true as Yang Wei said, this information can be said to be extremely thin, but the most critical data has actually been obtained.

"He is not in the country now, but in the United States."

"Yes, I'm looking for Chen Yunyong from Yizha Laboratory - logically speaking, he is still your junior brother."

In fact, he is not particularly good at dealing with people. For example, just now, what he actually wanted to express was that he valued Chen Nian, but as soon as he said it, his taste changed a bit, and it sounded like he was complaining.

"This makes our calculations like headless flies. Even if we use the traversal method, it is difficult to get results."

Is it really necessary to use the system source point again?

"A paddling event is not so easy to attract attention."

On the other hand, it also reflects the strong technological strength of the United States.

"It's okay, I can use it."

"Of course, this is top-secret information, and it still needs to go through some necessary procedures, which may delay some time."

"Hey hey, hey hey"

Yang Wei repeated it subconsciously, and after thinking for a moment, he answered:

"I know this person and have dealt with him before."

The problem now is that the carrying pole has not been made yet.

"However, once you get used to it, both efficiency and confidentiality will be greatly improved, so I think it's worth it."

In fact, although Chen Nian had already talked with Yang Weizhi about the technical difficulties of the J-20B before, he still didn't know enough about the details.

Chen Nian smiled helplessly and said:

Opposite him, after listening to all the narration, Chen Nian's eyes gradually became solemn.

"Mr. Yang, as you know, I am not necessarily sure about your J-20 project, so I have to focus on things that I am sure about first."

"Such as materials, mechanical structures, etc."

Although it is not authentic, it still gives him some comfort as a wanderer who has been in a foreign land for a long time.

This problem is really not that easy to solve.

In the previous life, NPU had a cascade laboratory that specifically sorted out these problems. It spent a lot of time and jointly tackled the problem with multiple countries before finally solving it.

"Here, let me teach you how to use this."

"Can I eat spicy food?"

Chen Nian nodded and continued:

Are you kidding me? As a person who traveled back in time from 2022, how can I still not know how to use CAD and CATIA?

It's not expensive, but in addition to classic Sichuan cuisine, there are also specialties from Chen Nian's hometown.

"Chen Yunyong?"

You must know that paperless design is not yet popular in this era. The most typical one is that the original design of J-Shi did not completely get rid of paper.

"America?? Real or fake? Are you sure it's Chen Yunyong??"

"But I remember, isn't he an engine developer? Can he be used for the lift fan?"

Thinking of this, Chen Nian asked:

"Mr. Yang, do you have any information about the F-35B here? The more detailed the better!"
To be continued...