Chapter 84 Lifting Body Side Wing Canard Layout
"You gave me such a surprise so late at night. It seems that I will have a hard time sleeping today."

Xu Chongxing had not yet entered the discussion room, but his voice had already passed through the wall and reached Xu Yuan's ears.

Hearing this familiar voice, Xu Yuan quickly stood up and looked towards the door.

The next second, Xu Chongxing appeared in the field of vision. He was breathing heavily and it was obvious that he was in a hurry on the road.

Upon seeing this, Xu Yuan stepped forward and asked with concern: "Professor Xu, are you okay? If I had known, I would not have sent that message just now." He then took a plastic cup and filled a glass of water from the water dispenser.

Xu Chongxing took the water and sat on a chair to rest, but his eyes were fixed on the manuscript on the table.

"This person has to accept his age."

"But now that I know the paper has been written, I must see it no matter what."

"Otherwise I'd be unsure."

"Are these all manuscripts written by you?"

As he spoke, he reached out and picked up the top manuscript and placed it in front of him, asking in a surprised tone.

He came to the discussion room earlier and wanted to see how Xu Yuan's fluid mechanics paper was going. He found that Xu Yuan was studying hash functions and did not talk about the innovative canard aerodynamic layout design at all.

But upon inquiry, it was learned that Xu Yuan participated in projects of the Department of Mathematics of Qilu University and Qinghua Academy of Mathematical Sciences.

He said nothing more.

After all, he also knew that China was basically blank in the field of hash function cryptography.

There is no security code of your own at all.

This seriously threatens the security of information and other aspects.

Therefore, if Xu Yuan's talent can shine in the field of cryptography, he will also support it.

However, due to this situation, he did not actually see Xu Yuan's design paper.

Considering that the mathematics department has computers in the discussion room, we have a preconceived notion that Xu Yuan wrote on the computer.

Just like the previous interval problem that proved Carmichael numbers.

So when I suddenly saw such a thick stack of manuscripts, I felt quite confused.

All he could say was that he didn't know that Xu Yuan had first written the manuscript for the proof of the Carmichael number spacing problem, and then compiled it into two language versions of the paper on the computer. Otherwise, he would certainly not have looked so surprised as he did now.

"Yes."

“I prefer to write by hand.”

Xu Yuan nodded, as if he was talking about something very simple.

All the contents involved in this paper are in his mind and can be applied flexibly at any time.

Although the entire manuscript seems very complicated, it is actually no different from copying the answers directly.

If I hadn't had to review courses and study hash functions, this paper could have been completed long ago.

Why would I have to work so hard until now?

Xu Chongxing listened quietly to Xu Yuan's answer without responding. He focused his eyes on the manuscript of the paper and read it carefully, completely forgetting that it was already ten o'clock in the evening.

"Lifting body wing canard aerodynamic layout."

"Diamond nose."

……

"Fully moving canards."

He kept repeating the key points extracted from the paper, and his face showed a hint of joy with every word.

Obviously, he is very optimistic about the aerodynamic layout designed by Xu Yuan.

Especially after seeing the drawn shape of the fighter jet, it was like a sudden hit on his heart. Suddenly, he felt an inexplicable throbbing and the imagined picture of the fighter jet flying in the sky emerged in his mind.

Then he quickly came to his senses, packed up all the manuscripts, and said something to Xu Yuan before leaving.

"I'm going to take the paper back and study it carefully. Remember to meet me in my office tomorrow morning."

"If your aerodynamic design can really meet the parameter requirements of our country's latest generation of stealth fighters, I will immediately take you to Jincheng to discuss the formal establishment of the latest generation of fighters with Academician Song."

Xu Yuan certainly knew that a fighter jet would require many discussions and studies from project establishment to appearance selection.

It’s not that easy to decide.

So naturally, I would have no objection to Xu Chongxing's words.

Anyway, he is very confident in his lifting body side wing canard layout.

It can be said that this is the most suitable solution for the national conditions at the moment.

"I understand, Professor Xu."

He nodded in response, then turned off the lights, locked the door, and saw Professor Xu off.

When the two of them walked downstairs, Xu Yuan wanted to say something caring and ask the other party not to study too late.

However, his lips moved, but he finally swallowed the words and did not say them out loud.

The main thing is that he can also understand Xu Chongxing's mood at the moment.

It’s like finally getting the treasure you’ve been waiting for so long, and you have to play with it even if you have to stay up all night.

It is useless to persuade others.

-

After separating from Professor Xu, Xu Yuan returned to the dormitory feeling relaxed and saw that several people were already lying on their beds.

Among them, Wang Haitao went to bed early, covering his head with the quilt and falling into a deep sleep.

Liu Yang took a book and read it.

These are considered relatively normal behaviors.

Only Li Zhenya was holding his phone and laughing foolishly, and he managed to turn the text messages into the Penguin account logged on the computer.

It really shocked everyone in the dormitory. Li Zhenya somehow became friends with the senior from the Journalism Department and even found out her name was Yu Ruilan.

This incident also reminded Xu Yuan of the girl with the side ponytail, Chen Yuran.

It's just that after the last interview, although the two exchanged phone numbers, neither of them took the initiative to contact each other. Unlike Li Zhenya, who chatted directly via text messages.

In addition, he was busy researching hash functions and writing papers during this period, so he had no time to take care of other things.

In short, everything depends on fate.

"Do you really think text messages are free? Can't you just call me?"

Xu Yuan walked to his desk, sat down and changed into slippers. He couldn't help but complain about Li Zhenya's behavior.

On the other hand, Li Zhenya had a shy smile on his face and responded somewhat embarrassedly.

"Lanlan said that making phone calls would disturb the sleep of the people in her dormitory. I will go to bed after chatting for a few more minutes."

Hearing Li Zhenya even calling Lanlan, Xu Yuan couldn't help but give him a thumbs up to express his sincere admiration.

Then after washing up, I chose to go straight to bed and wait until tomorrow to find Xu Chongxing to discuss the thesis.

No words were spoken all night.

The next day.

Xu Yuan got up on time early in the morning.

I first ran a few laps on the playground, then went directly to the cafeteria to have breakfast and then went to Xu Chongxing's office.

As for Li Zhenya, Wang Haitao and Liu Yang in the dormitory, they didn't have to worry about anything because they had no classes on Saturday.

I basically won't get up until noon.

Xu Yuan was originally worried that there would be no one in Xu Chongxing's office. After all, if he slept too late yesterday, he would tend to wake up late. But when he arrived, he found that his worries were completely unnecessary.

Standing in front of Xu Chongxing's office door, I just raised my hand to knock and a familiar voice came from inside.

"Please come in."

When Xu Yuan pushed the door open, the first thing he saw was the manuscripts of thesis piled up on Xu Chongxing's desk.

And those quite obvious dark circles under the eyes.

Xu Yuan suddenly thought of something and asked tentatively.

"Professor Xu."

"Have you been studying here all night?"

"It's not as exaggerated as you think. I just slept a few hours less." Xu Chongxing waved his hand and said, "It's only because your paper is too attractive."

From the early hours of last night to rushing to the office early in the morning, he was clearly not getting enough sleep.

Besides not wanting to sleep because I was reading the paper, the more important thing was that I was too excited to fall asleep.

After carefully studying the appearance of the lifting body, wingtip canard aerodynamic layout fighter designed by Xu Yuan, and calculating the above parameters, he indeed found that this layout could reduce the disadvantages of the canard.

After making this discovery, he almost jumped for joy, because it meant that Xu Yuan's plan was feasible.

Now that he noticed Xu Yuan coming in, he finally stopped what he was doing and started communicating with Xu Yuan.

"Sometimes I really want to see how your head is built. Even I envy this talent."

"I read the whole paper roughly and could not find any mistakes."

"So I think your design is acceptable and you are qualified to participate in the discussion meeting on the appearance of stealth fighter jets."

After hearing this, Xu Yuan was quite excited, thinking that he finally had the opportunity to promote the project of the latest generation of stealth fighter jets.

But before he could feel happy, Xu Chongxing poured a basin of cold water on him mercilessly.

"It's just that your proposal has more than a dozen aerodynamic surfaces, including canard wing strips, leading edge wings, maneuvering flaps, main wings, trailing edge flaps, ailerons, fully movable vertical tail, ventral fins, and other aerodynamic surfaces."

"Plus, the fuselage has at least five types of vortices, and the complexity of the aerodynamic layout is rare in the world."

“Also there’s the extra-long fuselage length.”

"That's going to be a very difficult challenge for the flight control system."

Xu Yuan was naturally clear about the issues raised by Xu Chongxing.

Although the difficulty of flight control has increased significantly, it has already been optimized and is the most suitable solution.

After all, there is no absolutely perfect aerodynamic layout, and all the designs of fighter jets are the product of compromise.

It often requires a combination of supporting facilities and equipment construction, as well as R&D level, manufacturing level, capital size and many other factors.

The thought stayed here, and Xu Yuan immediately answered these questions.

"Professor Xu."

“I am very satisfied with my design.”

"Both the more aerodynamic surface design and the extra-long fuselage can ensure good supersonic cruise performance."

“It’s excellent in terms of maneuverability, stability and trimming capabilities.”

"As for the higher-level flight control system, I also believe that our research institute will definitely be able to overcome it."

Xu Chongxing listened to every word Xu Yuan said, and then slammed the table as if he had made a decision.

"Since you have this confidence, I will take you to Jincheng Aircraft Design Institute to find Chief Designer Song tomorrow."

"Go back and rest today to recharge your batteries."

Although Xu Yuan already knew the normal procedure, he was still somewhat surprised to hear that he had to go to Jincheng Aircraft Design Institute so soon.

All I can say is that Xu Chongxing took this matter too seriously.

Now that things had come to this, Xu Yuan certainly would not back down and readily agreed to it on the spot.

"I understand, Professor Xu."

After that, he did not delay any longer. After talking to Xu Chongxing, he returned to the dormitory to prepare to go to Jincheng Aircraft Design Institute to meet with the chief designer, Academician Song Wencong.

……

　There is one more in the afternoon. I will update it continuously and ask for monthly tickets and subscriptions. Please give me more motivation!

　　
　
(End of this chapter)