Chapter 75: You are asked to design a fighter jet

The wishes of Li Zhenya and Wang Haitao were obviously impossible to achieve. They still had to go to take the advanced examination in the afternoon. Before leaving the dormitory, their faces were even more bitter than bitter gourds.

There was no trace of the smile I had when I just finished the math analysis exam. I could only pray silently that I would not fail the exam.

Xu Yuan did not stay in the dormitory alone in the afternoon. After calling his parents, he went to the bank.

Send the money back home to decorate the new house.

After all, he hardly spends any money at school, and all the facilities and resources in the school can be used for free.

Plus, I receive a full scholarship every year, so I don’t need to keep too much money on me.

While Xu Yuan was still outside the school, Xu Chongxing had already taken his test paper and was in the office preparing to grade it.

"You want to learn engineering mechanics by yourself relying on your talent for mathematics. I want to see how many points you can get."

In the professor's office at the Institute of Fluid Mechanics, Xu Chongxing made himself a cup of tea and sat down with the test paper. He muttered to himself and put on his reading glasses.

He was very confident about the questions he set this time. Not to mention the students who usually listened carefully in class, even a junior student couldn't get full marks.

Especially the last part of the aircraft appearance design.

It seems that there are no hard requirements, but you will realize how difficult it is when you actually design it.

After all, the shape of the aircraft must conform to knowledge of multiple disciplines such as fluid mechanics, aerodynamics, mechanical mechanics, etc.

He didn't expect Xu Yuan to be able to answer to any extent, but he just wanted to use this opportunity to make Xu Yuan aware of the problem.

It is impossible to master the knowledge of engineering mechanics through self-study alone, otherwise you should decisively give up engineering and focus on science.

Xu Chongxing put on his glasses and took a quick look at Xu Yuan's test paper. When he saw that he had answered all the questions, he felt a little surprised.

"Huh~"

"Have you finished answering the questions?"

……

"I even wrote the last design question."

"interesting."

After turning over the test paper and finding that he had also done the design questions at the back, he subconsciously murmured in surprise.

This made him curious about the test paper.

It seems a little different from what was expected.

Xu Chongxing simply asked the invigilator to bring the test paper to him while he was eating, and he didn't know that Xu Yuan had handed in the paper in advance.

But for subjects like science that focus on numerical accuracy, you won’t get points just by writing more about the solution process. It still depends on whether the answer is accurate.

The thought stayed here, and Xu Chongxing did not waste any more time. He turned the test paper over and started reviewing it from the beginning.

At first his expression was normal and he remained calm.

But as time passed, he began to feel something was not right and looked suspicious.

Because when I corrected the questions one by one, I found that there were no mistakes.

If Xu Chongxing was still thinking about persuading Xu Yuan just now, now there was only shock in his heart.

He saw something.

Students who had not taken many professional courses since the beginning of the school year answered the test paper he personally set with 100% accuracy.

There is not even a single flaw in the solution process.

Is it possible to master engineering mechanics knowledge to this extent just by self-study?
What a talent this is.

Since Xu Chongxing taught in the Department of Engineering Mechanics at Qinghua University, he has encountered so-called geniuses.

But none of them can reach Xu Yuan's level.

Faced with such an unexpected result, he had to start reconsidering his training plan for Xu Yuan.

It can be said that they are all thinking about poaching people from the mathematics department.

"It's hard to imagine. No wonder this kid always looks so confident."

"I was wrong this time."

Xu Chongxing sighed and talked to himself. After many years, he began to reflect on himself.

But the next second he suddenly thought of something, and his face instantly became expectant.

"and many more."

"Since you have answered the previous questions so well..."

"The final design question..."

Xu Chongxing was immersed in the surprise brought by Xu Yuan, and only then did he realize that there was a special design question.

Judging from the level at which Xu Yuan completed the previous questions accurately, the final aircraft design must have some merits and it is impossible that he answered randomly.

The next second, his eyes focused on Xu Yuan's answer, and Xu Chongxing's brows frowned slightly.

"Canard aerodynamic layout?"

He did not expect that the aircraft designed by Xu Yuan was actually a fighter suitable for supersonic air combat.

As a professor at the Institute of Fluid Mechanics, he naturally participated in the appearance and structural design of domestic fighter jets, and was very clear about the defects and problems of the canard aerodynamic layout.

But I am still surprised that Xu Yuan can design to this level, after all, this involves aerodynamics and fluid mechanics.

The relevant knowledge does not belong to the freshman stage at all.

In other words, Xu Yuan's learning speed has far surpassed that of other freshmen in the same class.

Then he continued to read on patiently, and when he noticed that Xu Yuan had innovated the canard style with wing slats and soft lifting body based on the canard style, he suddenly lost his composure.

In recent years, with the increasing strength of overseas stealth fighters, there have been voices in China that have begun to develop fifth-generation stealth fighters. Unfortunately, due to various reasons, this project has not yet been officially launched and researched.

He had also discussed the fifth-generation stealth fighter when he participated in a fighter research and development project in Jincheng.

Among them, the canard aerodynamic layout is one of the options.

However, due to the defects of the canard aerodynamic layout, no decision could be made.

Now Xu Yuan has made innovations in the canard, making it softer with the wing slats and lifting body, which may be able to improve the defects of the canard and determine the appearance and structure plan for the domestic stealth fighter.

Of course, whether Xu Yuan’s innovative plan is feasible still needs detailed calculations and simulations.

But the biggest problem at the moment is that Xu Yuan’s design is relatively simple and incomplete.

The entire innovative canard aerodynamic layout plan needs to be completed.

"This kid really gave me a big surprise. If I hadn't set the test questions myself, I wouldn't have known that he was so talented in fluid mechanics and aerodynamics."

Xu Chongxing read Xu Yuan's answer word for word and straightened his sore back slightly.

His whole face was filled with surprise.

It is no exaggeration to say that he now wants to tie Xu Yuan up immediately and ask him to complete the exterior structure design plan.

He had been quite surprised when he saw how much Tang Shihong loved Xu Yuan, to the point that the principal personally went to deliver the admission letter.

Now I can understand Tang Shihong's feelings.

As a second-level full professor, he was able to recruit such a talented student. Perhaps one day his own students would become academicians.

I would pamper anyone no matter who it is.

After a while, Xu Chongxing calmed down a little and decided not to disturb Xu Yuan for the time being.

It's the weekend after all. How can we not let people rest after they just finished their exam in the morning?

It’s not too late to talk about this in class on Monday.

It just so happens that he can study this simple plan carefully again and discuss it with Xu Yuan later.

As soon as he made the decision, he picked up a pen and bent over to continue calculating, completely immersed in it.

……

Xu Yuan didn't know that the aircraft he designed had been taken seriously by Xu Chongxing.

In the evening, because Li Zhenya and Wang Haitao seemed to have failed the college entrance examination, the four of them went out of the school to eat to comfort them.

Since the school cafeteria is free, Xu Yuan rarely eats outside the school.

This is not to save money, but mainly because the Qinghua campus is so large that it takes a lot of time to go out.

A few people drank some beer at the dinner table. Li Zhenya and Wang Haitao said that they would review well next time and must not let the final exam go as badly as today and possibly fail the exam.

Xu Yuan naturally supported their ambitions, but based on his understanding of Li Zhenya and Wang Haitao, he was afraid that this enthusiasm would disappear after the exam.

In addition, Liu Yang has also obviously changed during this period. The biggest difference is that he has started to choose to practice questions and read textbooks when he goes to the library, and no longer conducts research in journals and literature.

In fact, Liu Yang had never told anyone else about this. After the military training, when he learned that Xu Yuan had written a paper, he also had the idea of ​​giving it a try.

After all, since he regards Xu Yuan as his target, why can't he do what Xu Yuan can do?

So at that time I often went to the library to study literature.

I have even decided on the direction of my thesis.

After finding out that Xu Yuan's paper had been submitted to the Annals of Mathematics and was included in it, he gave up his idea on the spot.

Along with the manuscript of the paper he had just written, it was destroyed.

The main reason is that he still has a relatively clear understanding of himself, since it is impossible for him to catch up with Xu Yuan.

It would be better to just let things take their own course and finish your undergraduate studies first.

Xu Yuan and his friends deliberately controlled the number of bottles of beer, so that when they returned, although everyone had rosy faces, they were not to the extent of feeling dizzy when walking.

Thanks to their youth and fast metabolism, everything was basically back to normal by the time the breeze blew into the dormitory.

No words were spoken all night.

The next day.

In the morning, Li Zhenya, Wang Haitao, Liu Yang and others will continue to take the following exams.

Xu Yuan was planning to go to the library to read, but suddenly received a call from Tang Shihong.

Let him go over there after he finishes the exam.

Thinking that he had nothing to do anyway, he locked the dormitory door and walked directly to Tang Shihong's office.

As I walked downstairs to the comprehensive building, I happened to see counselor Lu Chunming coming from not far away.

It seems that he is here to find his mentor.

"Hello, senior brother."

When Xu Yuan saw the other party approach, he immediately took the initiative to say hello.

"Junior brother, you are here to see our instructor, right? Then let's go up together." Lu Chunming took over the conversation and replied kindly.

He is now very good to his future junior, especially when he thinks of the surprised look on his face of his graduate roommate after Xu Yuan's paper was included in the Annals of Mathematics. He feels even more comfortable and happy, which made the other party strongly doubt his words at the beginning.

After exchanging greetings, the two did not stay downstairs for long and immediately went to Tang Shihong's office together.

During the period, Xu Yuan also specifically asked Lu Chunming and found that the other party did not know why Professor Tang called him here today.

After hearing this, he had to give up for the time being, thinking of asking about the situation in detail when he got to the office.

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(End of this chapter)