Genius is just the threshold for me!

Chapter 130 Undetected - 8, Lin Dong's First Project

It was past four in the afternoon, and the sun was still high in the sky.

Lin Dong and his entourage returned to the outer gate of the Chengdu Aircraft Industry Group base by car.

As soon as he got out of the car, Li Tao shouted that he needed to use the toilet. He told Zhang Yihao to buy him a pack of tissues and bring it over, then clutched his stomach and quickly disappeared through the door.

Upon hearing this, Zhang Yihao, still halfway in the car, couldn't help but curse, but after grumbling for about ten seconds, he still walked towards the convenience store in the other part of the neighborhood.

Seeing this, Lin Dong and the others couldn't help but shake their heads and slowly walked towards the entrance of the residential area.

Reaching the entrance of the residential area, Xu Qingling lagged a few steps behind and said to Lin Dong, "Go play games in Uncle Lin's lab, I'm going to chat with Yao Yao and the others—"

"it is good."

Lin Dong nodded, waved to Huang Qingyao and the others, and turned to walk towards Laboratory 78.

After walking for more than ten minutes, Lin Dong arrived at Laboratory No. 78, entered the password, opened the door, and went inside.

"4:38, twenty minutes left————"

Lin Dong glanced at the time displayed in the lab, took a bottle of cola from the refrigerator, and opened the server to check the emails from the past two days.

"Three emails: the latest progress on the Emei project, the mass production progress of the third-generation single-crystal nickel-based alloy, and the problem that my godfather is solving with the swarm drones—he's got everything sorted out for now."

Lin Dong opened his secure email account and saw one email from Jiao You and two unread emails from Wang Xingguo. He took a sip of his cola and opened Jiao You's email first.

"Teacher Xiaodong, the plan has been scrapped and redesigned. Under the new parameters, the temperature in front of the turbine is as high as 1600 degrees Celsius or more, which exceeds the limit temperature resistance of the third-generation single-crystal nickel-based alloy by more than 40%. The design simply cannot pass the test."

But if the temperature is lowered, the thrust will be reduced, and the plan will revert to a conservative approach.

After reading Jiao You's description of the problem and then flipping to the general calculation process, Lin Dong confirmed that there was no error in the calculation. After thinking for a moment, he typed a reply.

The third-generation single-crystal nickel-based alloy has a long-term stable temperature resistance of 1150 degrees Celsius. However, the high temperature of 1600 degrees Celsius in front of the turbine renders conventional cooling solutions unsuitable.

Jiao Gong, you can look for the paper published last month on the military industry intranet, number AD2012-137, which describes a brand new hollow air-cooled model.

Through a special air duct design, a "film" can be forcibly formed on the blade surface by cooling airflow inside, which isolates the blade from the high temperature outside and protects it from high temperature damage.

The drawback of this design is that the special air passage design for the blades will reduce their strength. However, the strength of the third-generation single-crystal nickel-based alloy material is sufficient. Even with this slight reduction in strength, I believe it can still meet the requirements of the Emei engine.

"As expected of a high-thrust, large engine, just by slightly changing the parameters, the turbine inlet temperature reaches 1600 degrees Celsius — no wonder large hypersonic aircraft require breakthroughs in fourth-generation single-crystal nickel-based alloys. This thing is really demanding on materials."

Lin Dong sent the email and couldn't help but shake his head.

It must withstand prolonged high temperatures of 1600 degrees Celsius, the terrifying pressure of combustion expansion in the combustion chamber, and the torque of high-speed turbine rotation.

It can be said that there is no material in the world that can withstand the three extreme environments mentioned above while maintaining its long-term stability.

Therefore, the only way to maintain the long-term stable operation of the turbine is through "balancing" using technical means.

For example, if the strength of third-generation single-crystal nickel-based materials is sufficient, then by sacrificing some strength, a special hollow air-cooling design can be added to make up for the original weakness of "temperature resistance".

"However, this Mr. Jiao is indeed very focused on technology and strongly believes in the idea of ​​'learning from the experts.' Even though I told him not to call him 'teacher,' he still starts every email with 'teacher.'"

"At over fifty years old, holding the position of Director 001 at Institute 624, and being the undisputed top figure in China's aero-engine industry, it's truly remarkable that he could swallow his pride like this. Most people couldn't do that."

"To be able to do calculus at age 11, that's no ordinary person."

Lin Dong sighed inwardly, took another sip of cola, smacked his lips, and opened Wang Xingguo's email.

"The laboratory renovation of the third-generation single-crystal nickel-based material has been completed, and testing has now begun—that's good news, the industrial monster is about to start its rampage again."

Lin Dong nodded, then looked at the second email, his brows furrowing slightly.

"At hypersonic speeds, the lift efficiency of traditional wing structures drops drastically. At this point, a special waverider structure is needed to allow the aircraft to 'sit' on the shock wave surface."

Such a waverider design requires the flight attitude to be precisely aligned with the shock wave surface—but the calculation of the position and angle of the shock wave surface at hypersonic speeds, as well as the shock wave drift parameters generated by the fuselage aerodynamic layout, are always difficult to understand.

"hiss--"

"This godfather and Engineer Jiao are only a year apart in age and they both learned calculus, yet their comprehension abilities are so different?"

Lin Dong took a breath and suddenly felt an urge to scratch Yuan Lao's face.

He has already provided a rough list of information. All you need to do is follow the list to verify and understand it. Why are you still stuck and unable to understand it?

Click—

Before Lin Dong could figure out how to reply to this question...

Suddenly, a door opened, and Lin Weiliang, Xu Ziming, and Wang Xingguo walked out.

"The air here is so much more comfortable—"

Lin Weiliang came out and couldn't help but sniff: "Engineer Xu, there's always a smell of oil in your workshop."

"Next time I'll dismantle the workshop and let your son tighten the screws himself."

Xu Ziming said irritably, "That way there won't be any engine oil."

"Godfather, come here, come here!"

Lin Dong was not surprised when the three walked out from the side; he simply waved to Wang Xingguo.

Although, thanks to Jiao You's suggestion, the adults avoided spending time in Laboratory 78 with him and communicated with him via email whenever they had any questions.

But after a few days, Wang Xingguo couldn't take it anymore.

Because Lin Dong doesn't always check his email on time, and because emails can only exchange information once at a time, communication efficiency drops sharply.

If you encounter something complicated that you can't explain in a short time, it becomes even more of a headache.

So on the fourth day, Wang Xingguo came up with a solution.

They secretly opened an internal passageway from the small assembly workshop next door, which was under the jurisdiction of Xu Ziming, to Laboratory No. 78.

Instead of coming to Laboratory 78, they would first go to Xu Ziming's assembly workshop and then come to Laboratory 78 through the passage.

From an outsider's perspective, this meant they didn't spend much time with Lin Dong, which added an extra layer of protection.

However, this also makes it easier for Lin Dong to directly ask Wang Xingguo questions.

"Godfather, this!"

Lin Dong called Wang Xingguo to the screen and pointed to the question on the email, asking curiously.

"How could you not understand the position and angle of the shock surface of this hypersonic waverider, as well as the drift of the shock surface? It's quite simple, isn't it? I've given you a list, just follow it to understand."

Calculating the shock surface of a hypersonic waverider — simple?

Wang Xingguo opened his mouth, instinctively wanting to ask if this was something a human could say.

Seeing Lin Dong's serious and matter-of-fact expression, he could only grit his teeth and admit, "Godfather's talent is average. You did provide the list, but the steps in the middle were too disjointed. No matter how I calculated it, I couldn't get it right—"

If it weren't for Lin Dong's brand-new hypersonic aircraft, the "Hot Spicy" model, it would have already cruised at Mach 5, taken off at Mach 6 with afterburner, and even shot down an F-35C fighter jet.

He even suspected that the information on these lists was fabricated by Lin Dong.

Otherwise, why would he have spent decades designing aircraft, yet still couldn't get the correct design no matter how he followed the instructions?

'

Lin Dong was stunned: "Really?"

"Really!" Wang Xingguo nodded bitterly.

"You weren't being lazy? You didn't bother to carefully calculate and think it through?" Lin Dong was still somewhat skeptical.

"Am I a lazy person? I'm not Engineer Xu!" Wang Xingguo couldn't help but feel wronged.

"Hiss—this is getting a bit tricky."

Lin Dong took a breath, thought for a moment, and said, "Let's add more steps to the experiment, a hypersonic test, since the JF12 hypersonic shock tunnel has just been completed."

Verification based solely on data is too abstract and may be beyond your comprehension, Godfather.

By conducting several experiments and observing the actual changes in the data, you will gradually gain an understanding.

The list I provided is already at its limit. If I were to fill in all the intermediate steps, it would be pure copying of the answer.

By the time you've finished copying, Godfather, your design thinking ability and research potential will be ruined.

"And I alone cannot handle everything, nor can I provide answers to everything."

Lin Dong has always been clear that he is only one person, and there are only 24 hours in a day. It is impossible for him to handle all the problems in the entire industry and all fields by himself.

In this way, Wang Xingguo and others, as well as countless other researchers, must maintain their thinking abilities and their research potential; they cannot all rely on him to feed them.

"I see."

Wang Xingguo was aware of the situation, and after taking a deep breath, he said seriously, "I'll go back and coordinate with the wind tunnel team."

"Okay then."

"If you don't understand something, just say so, but it's impossible to make up for the intermediate steps."

Lin Dong nodded, then turned to Lin Weiliang: "Dad, what did you call me here for?"

"Your godfather should say it," Lin Weiliang shook his head and pointed to Wang Xingguo.

"Headquarters has assigned Chengdu Aircraft Industry Group a new key project."

Wang Xingguo took the document bag he always carried with him, which was sealed with sealing wax but was already open, and handed it to Lin Dongdao.

"We are required to research a medium-sized reconnaissance drone with a range of 3000 kilometers and high-altitude hypersonic speed, mainly for reconnaissance and locating aircraft carrier fleets at sea — Project code name: WZ-8."

This project is quite core, but it's not as massive and complex as large-scale projects like the Emei Mountain project or the third-generation single-crystal nickel-based alloy project.

Your father, your Uncle Xu, and I discussed it and asked if you were interested in taking on the role of chief engineer for this project, overseeing all the challenges and difficulties.

You don't need to show your face. Just direct me and your father from behind the scenes. Consider it as gaining you some experience as a project chief engineer.

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