From Almighty Scholar to Chief Scientist

Shen Zhi shrugged towards Ma Gaoliang, didn't care about Shen Zhi's tone, but first introduced Ma Gaoliang next to him.

"Professor Zhang, I know, I know, Director Ma Gaoliang of our Science and Technology Bureau is here to ask you for something."

"Director Ma?" Zhang Heng glanced at Ma Gaoliang and snorted, "What's wrong with the Science and Technology Bureau? The director of the Science and Technology Bureau can disturb people's research? Do you know how important it is to design the stealth layout of the J-[-]?"

J-[-], the fifth-generation carrier-based aircraft that Huaguo is developing. Unlike fighter jets, carrier-based aircraft are aircraft that can take off and land on an aircraft carrier. Huaguo has never produced a fifth-generation carrier-based aircraft before. There is a big gap in the strength of naval battles with a foreign country.

Ma Gaoliang smiled, and was also not angry, but said: "So I came to you today to provide you with a helping hand."

"Assist?" Zhang Heng was puzzled, "Director Ma also studies invisible materials? Is the threshold for being a director so high?"

"...Uh, no." Ma Gaoliang was helpless. Is there something in your words?

He waved his hand and said, "I want to show you a new theory, which is very important for your development of absorbing materials and their layout..."

After some explanations, Zhang Heng finally became interested: "Can you clarify the coherent superposition of waves? Master the laws of interference and diffraction?"

If this is true, it is really useful for his research.

So Professor Zhang Heng didn't talk nonsense, he got this theory from Director Ma, and began to verify whether it was really useful.

For people like him who engage in applied research, pragmatism is the most important, so he doesn't care how important the proof process of this theory is, he only cares about whether the final results can be applied to his research.

And this is very simple, since the final result is a partial differential equation, then he can directly substitute various values ​​into this equation, and then use the computer to perform simulation calculations.

Soon, he completed this step, and then modified the surface of the absorbing material, mainly using this partial differential equation for optimization. After some effort, the simulation began.

The calculation of the computer drives the internal fan to rotate rapidly.

After a while, the result appeared.

Zhang Heng stared suddenly.

After the surface of the wave-absorbing material optimized by this partial differential equation, the wave-absorbing efficiency has increased by 15%!

"This... is incredible!"

For the first time, Zhang Heng, whose expression remained unchanged, showed such a surprised look.

But after the surprise, it was an incomparable surprise!

Chapter 254 Zhang Heng's Amazement!

The stealth capability of stealth fighters, of course, does not refer to optical stealth, but to prevent detection by radar.

When the waves sent by the radar are transmitted into the air, if there is no object in the sky, these radar waves will continue to propagate, and the radar will not detect any abnormalities, but if there are objects in the sky, the radar waves will encounter obstacles and then bounce Come back, and then be received by the radar, the radar will then process the received data, which involves a radar reflective surface, the larger the reflective surface, the easier it is to be detected, and vice versa.

So if the radar detects a bird, because the bird is small enough, the chance of the radar to detect it is relatively small. Of course, even if it is detected, it will be ignored by the computer algorithm. One bird, the radar base is about to ring, and the staff at the radar base are obviously about to suffer.

This is not the case for aircraft such as fighter jets. Because the aircraft is large and has a large reflective surface, it is necessary to adopt various methods to reduce the reflected radar waves. Its radar reflective surface, and the use of stealth paint, both complement each other and are very important. Even the stealth paint needs to be coordinated according to the shape of the fuselage.

Professor Zhang Heng naturally knows these things very well.

But now, he just used this partial differential equation to slightly optimize the layout of the stealth paint, and as a result, he abruptly increased the wave-absorbing ability by 15%?

Although, he is just a simple design now, which does not represent the real situation, including the method is not very rigorous, the model is also very idealized, without specific analysis, it is just an airplane model, probably even simpler than an origami airplane.

However, this wave-absorbing ability has been directly increased by 15%, but it is genuine. Even if it is really manufactured, the wave-absorbing ability is estimated to be around.

He couldn't help observing carefully again, looking at the radar wave absorption process on the simulation software.

Then, he took out the paper and pen and began to calculate.

As an expert in researching the layout of stealth paint for fighter jets, the chief engineer of the J-[-] always asked for his advice when designing the shape of the J-[-], and his ability in mathematics is not bad at all.

But now, he needs to use mathematics to directly calculate the principle of improving the absorbing efficiency.

Soon, he figured it out.

"So it is!"

There was surprise in his eyes.

"It's like the principle of thin-film interference! It's just closer to the essence, and... a few layers deeper."

The principle of thin-film interference is used in many places. The most common thing is the anti-reflection coating. For example, there is an anti-reflection coating on the lens of glasses. It can enhance or reduce reflection by using the interference of light.

For radar waves, it can reduce the reflection of radar waves through this interference, thereby improving the absorption efficiency.

But not only that, if it is just the principle of thin film interference, it is obviously not worth mentioning, but the key point is that it can make the interference and diffraction of radar waves on the coating more intense by changing the layout of the coating, which in turn leads to interference Cancellation and Diffraction The cancellation effect is more intense, thereby reducing wave reflection to a greater extent, and can also form a "dark room" between the coatings, so that radar waves cannot be reflected.

Probably: radar waves?Hmph, it must be called back and forth!

After clarifying how to use this theory, various methods of using it to improve the performance of wave-absorbing materials suddenly appeared in Zhang Heng's mind. Even the more he thought about it, the things he thought of were not limited to wave-absorbing materials. Rather, it lies in the design of the fuselage shape.

The selection and layout of absorbing materials need to be determined according to the shape of the fuselage, because the shape of the fuselage serves the starting performance of the fighter jet. In the face of the overall maneuverability of the fighter jet, the stealth performance obviously needs to be compromised.

But now under the guidance of this theory, they can completely grasp both hands and harden both hands.

In this way, the stealth performance of their fighter jets can be greatly improved!

Thinking of this, he slapped the table.

"Damn! Why did it appear only now!"

Ma Gaoliang and Shen Zhi, who had been waiting for his reply, were startled when he suddenly slapped the table.

What happened?

Why are you hitting the table?

Shen Zhi stepped forward and asked, "Professor Zhang, what's wrong? What just appeared now?"

Zhang Heng shook his head, sighed and said, "I said this theory appeared too late."

Ma Gaoliang was also puzzled, "Is there any problem with this?"

Zhang Heng looked helpless, and said: "If this thing appeared a few years earlier, the stealth ability of our J-[-]-[-] would have been improved a lot. It's a bit late now, and the J-[-] will be released this month. It seems to be going to test flight at the end of the month.”

Hearing this, Ma Gaoliang breathed a sigh of relief. He thought something was wrong, but when he heard Professor Zhang Heng's regretful tone, it seemed like something big was about to happen.

But now it seems that this thing has a very important effect, otherwise, Professor Zhang Heng wouldn't be so excited!

I remembered that Lin Xiao had something to do with him the day before yesterday, and now it seems that as long as Lin Xiao looks for it, something good will definitely happen.

Then he smiled and said, "It's okay, although it's a bit late, it's better than nothing!"

"What's more, it's not like we won't improve in the future. When we improve the J-[-] in the future, we can use this theory again."

Professor Zhang Heng smiled and said, "That's true!"

"In addition, I estimate that this new theory can also be used to enhance the detection performance of our military radar. This principle can be used to enhance the absorption and reflection capabilities of radar waves. There are also many other functions. I think, what will happen in the future can be used.”

Speaking of this, Zhang Heng suddenly remembered something: "Hey! By the way, who invented this partial differential equation? Is it a foreigner? Then we have to hurry up. Foreigners may get this theory sooner or later." It started to be used, we can’t fall behind too much.”

Hearing what Zhang Heng said, Shen Zhi also turned his head to look at Ma Gaoliang, and asked, "Director Ma, yes, who researched this thing? Was it a foreigner?"

Speaking of this, Ma Gaoliang laughed: "This is a theory that we Hua people have come up with! So don't worry, foreigners don't know about it now! Now it is"

"Hua people?" Zhang Heng's eyes suddenly lit up: "Who is this kind of talent? We have to call him over, it will be very helpful for our research!"

"Forget it, just give me his contact information, and I'll call him directly."

When the time comes, ask directly, do you want to study fighter jets? I guess the vast majority of domestic researchers will be willing, right?

Hearing Zhang Heng's words, Ma Gaoliang helplessly spread his hands: "Professor Zhang, forget it, I'm afraid you will be scooped up by him in time, Director Shen can't trouble me?"

"Did me go?" Zhang Heng suddenly became more interested: "It seems that he is also an old guy. Tell me, don't be a secret, maybe you are still my acquaintance?"

Ma Gaoliang said with a smile: "He is not an old guy, he is still a young man. The combined age of the two of them is probably not as tall as us alone."

"Okay, I'm not going to make a fool of myself. This was created by that Professor Lin Xiao. I was entrusted by Professor Lin Xiao. I came here to get your opinions. Professor Zhang Heng, do you think that with the role of this theory, Do we need to keep this theory a secret?"

Hearing what Ma Gaoliang said, Zhang Heng couldn't help being taken aback.

Professor Lin Xiao?

Also what Ma Gaoliang said just now, this Professor Lin Xiao is estimated to be in his 20s, so obviously, there is only the most famous Professor Lin Xiao recently.

It turned out that this partial differential equation was actually created by Lin Xiao!

Although it shocked him, he also had to say "no wonder".

Although he didn't watch the derivation process of this partial differential equation system, he also knew that it was very troublesome to deduce it.

But that young professor named Lin Xiao definitely had a chance to deduce it.

And Shen Zhi next to him also showed an expression of enlightenment when he heard this name. Only such a genius can deduce such an important theory.

However, the question raised by Ma Gaoliang... is very thought-provoking.

It seems that this is to keep this theory a secret?

It is more difficult to keep the theory secret, because first of all, it needs to make demands on the theory proponent.

Those theories that need to be kept secret obviously have a very important role. For the proposers, if such theories are made public, they can also gain huge fame and fortune.

So if the theory proposer has no intention of keeping it secret, he will naturally publish it.

And this theory is obviously very important. This system of partial differential equations completely analyzes the laws of interference and diffraction. This alone can directly make a person famous for a lifetime.

Even for a world-class scientist like Lin Xiao who is already well-known, if this thing is announced, it will also allow him to make a breakthrough from a world-class three-star to a world-class five-star.

But now that Ma Gaoliang was able to ask them this question, it undoubtedly showed that Lin Xiao was willing to keep this theory a secret.

Thinking of this, Zhang Heng secretly sighed in his heart, it is a great fortune for their country that such a talented young man can still have such a heart.

He also secretly made a decision in his heart. Although an old guy like him cannot derive such a top-notch theory, he must do his best in the future to maximize the effect of this theory and not let Lin Xiao down. expect.

Afterwards, he solemnly said: "Of course, this theory is worthy of our secrecy! As long as Professor Lin Xiao has no objections, I will definitely raise my hands in favor."

Seeing that Professor Zhang Heng was so serious, Ma Gaoliang nodded heavily, and then took out a piece of paper from his briefcase, which was an application form for confidentiality protection.

This application form will be submitted to the top leader, who will approve and keep it confidential. In the future, only some qualified scientists in their country will be able to use this wave coherent superposition equation.

Soon Professor Zhang Heng filled out the application form. He applied as a proposer. Among the reasons for the application, he used many words he could think of to describe the meaning of this theory, what? "very important", "the key to leadership", "the foundation of the rise of important science and technology" and so on.

All in all, it is almost like saying that this theory is rare in the sky and nothing in the earth.

After filling out the application form, Ma Gaoliang put the form away, and then said: "Then please keep this matter a secret."

Shen Zhi laughed: "Director Ma, you can rest assured. All of our comrades in Chengfei are extremely confidential, not to mention that only a few of us know about it now."

"That's good." Ma Gaoliang smiled and nodded.

Zhang Heng said again: "If you want to show it to others in the future, don't write down the argumentation process, just write the equations on it, and ask Professor Lin Xiao to write a note to explain what the numbers in it represent. That's it, the secrecy is even better."

Hearing Zhang Heng's suggestion, Ma Gaoliang nodded, "That's the reason."

"Well, that's it."

"Okay, then don't bother Professor Zhang."

Ma Gaoliang said with a smile, and then left the laboratory with Shen Zhi.

"Stay here for a while?" Shen Zhi asked.

Ma Gaoliang waved his hand: "No, I should go."

"Okay." Shen Zhi nodded, and then said: "By the way, from the 10th to the 15th of next month, at the Zhuhai Air Show, our J-[-] will have brand new equipment. By then, you, the director of the Science and Technology Bureau, will You must come and visit.”

"J-[-]? New equipment?"

Shen Zhi chuckled: "You should know this news, the Institute of Aeronautical Materials produced a super material two years ago, which can be used on engine fan blades. Who researched it, otherwise we aviation people would have to thank him very much."

Hearing Shen Zhi mention this, Ma Gaoliang laughed: "Oh, you say this, okay, when the time comes, I will definitely go."

"Okay." Shen Zhi made an OK gesture, "Then see you then."

Ma Gaoliang said no more, and after saying goodbye, he turned and left.

And in his mind, he also remembered what he had heard about the J-[-] recently.

The turbofan 15 engine they used now has a thrust-to-weight ratio of 13.6!

This is definitely the top thrust-to-weight ratio among all fighter engines in the world.

And all of this is the titanium-aluminum alloy material developed by Lin Xiao at the beginning.

This is a secret, Shen Zhi doesn't know it, but he does know it.

This is nearly 15 times higher than the 10.87 thrust-to-weight ratio of the turbofan 3 that used old materials!

Therefore, at this air show, their J-[-] is ready to shock the world.

A feeling of pride rose slightly in his heart, and then he stepped faster, applying for confidential protection of the theory in his hand as soon as possible, so that it can play a greater role.