When I am reborn, I just want to be a top student

Wang Donglai didn't know what the experts were thinking, but after walking up to them and seeing the doubts in their eyes and a hint of contempt in their expressions, Wang Donglai immediately understood.

Without paying attention to this, Wang Donglai looked at everyone calmly and began to introduce them.

This rocket engine was designed by Wang Donglai alone from start to finish, and he is also the person in the world who knows this rocket engine best.

Therefore, the introduction is naturally very simple.

"Everyone here is an expert, so I will just give a brief introduction."

"For this rocket engine, I chose liquid oxygen and methane as fuel, and used full-flow staged combustion to propel it..."

"When I was designing it, I made a model prediction. Theoretically, the rocket thrust can reach 500 tons, and the specific impulse can also reach a first-class level..."

"One thing is very important. I designed this rocket engine based on the needs of Galaxy Technology Aerospace Rocket Company. It must be low-cost and reusable, so to a certain extent, some improvements have been made to some places..."

Facing so many experts, Wang Donglai was not at all nervous and explained his plan calmly and confidently.

While Wang Donglai was speaking, the many experts below gradually became serious from their initial carelessness.

Because they could hear that Wang Donglai was not talking nonsense.

At least there were no logical errors when explaining this rocket engine.

Theoretically, it is a completely reasonable design.

However, it is naturally not possible to decide on a new type of rocket engine so easily.

After Wang Donglai finished his explanation, someone immediately raised a question.

"Academician Wang, this rocket engine uses a full-flow staged combustion scheme, so there is a problem. The main combustion chamber and the turbopump must be integrated. This leaves little room for designers to maneuver. The performance of the rocket engine must be squeezed to the limit within a limited space."

"In this way, if there is a problem with the rocket engine, there is also little room for maintenance. How can this problem be solved?"

A middle-aged man sitting in the front and wearing black-framed glasses was the first to ask.

The expert review meeting was originally intended for invited experts to review Wang Donglai's design proposal, raise questions, and then have Wang Donglai answer them.

Wang Donglai knew something like this would happen before he came, so he was not surprised, nor was he angry.

Instead, he said very calmly: "Excuse me, who are you?"

The middle-aged man with black-framed glasses was slightly stunned, then he said his name and work unit: "I am Xue Wei from the Science and Technology Bureau."

Wang Donglai nodded and said, "It's Professor Xue. I've read your article "On the Development Prospects of Hydrogen Energy in Space Rockets."

Without waiting for Xue Wei to smile, Wang Donglai continued, "I don't know if Professor Xue is deliberately letting me off the hook, so he asked such a question."

"If a qualified rocket engine is not designed with the sole consideration of maintenance space in mind, from my personal point of view, it can basically be considered a failed product."

"Back to the rocket engine I designed, what Professor Xue pointed out is indeed a problem, but in my opinion, it is not important at all."

"Because the premise of this problem is that there will be problems with the rocket engine and it needs to be repaired."

"My design philosophy is very simple, which is to avoid this from the beginning of the design."

"If there is nothing wrong with the rocket engine, then there is no need for maintenance."

"Taking a step back, if the space left for maintenance is small, then why can't we change the way of maintenance, or develop special matching maintenance tools?"

At this point, Wang Donglai looked at Xue Wei, whose face looked a little unhappy, and said, "Professor Xue, I don't have any other intentions. I'm just talking about the facts."

Xue Wei's face twitched and he remained silent, obviously angry at Wang Donglai's words.

After hearing Wang Donglai's answer, others realized that Wang Donglai was not a good person.

Although he is young, his edge is not weak at all.

At this time, another expert raised two questions.

"Academician Wang, you just said that you were going to design a rocket engine that would not have any problems. This is theoretically possible, but practically impossible. How can you be sure that your design will be 100% successful and will not have any problems?"

"In addition, your rocket engine uses a full-flow staged combustion scheme, so when designing it, you must take into account the various pipelines and heat dissipation issues of the engine. I didn't see this in your design."

After these two questions were asked, everyone present looked at Wang Donglai, waiting for his answer.

In fact, rocket engines are both simple and complex.

It’s just because space rockets have to carry satellites and other things into space, and the requirements are too high, so various functional modules have to be added to ensure efficiency.

It is a simple truth that no matter whether it is an industrial product or any other product, it will become extremely complex as the requirements increase.

It is simply impossible to design a rocket engine that will not have any problems.

Compared with the first question, the second question is more professional.

On the outer wall of a traditional rocket engine nozzle, there are a large number of densely packed pipes through which low-temperature coolant flows, taking away a large amount of heat and heating itself at the same time.

However, these things do not exist on the rocket engine designed by Wang Donglai.

On the contrary, it is extremely simple and full of the beauty of design.

This is also one of the reasons why people don't have much confidence in this engine.

After all, anyone who knows a little bit about technology knows the importance of heat dissipation pipes.

Faced with these two questions, Wang Donglai remained calm and confident.

"Well, that's a very good question indeed."

"The first is to directly design a rocket engine that will not have any problems. This may sound incredible and unlikely at first glance, but in fact it is not. I think as long as the technology reaches a certain level, it can be done."

"The principle of a rocket engine is actually very simple, and I believe that everyone will not deny this. However, the development speed of aerospace rockets is not fast enough and is developing slowly. One of the main reasons is that the cost of each experiment is too high and is limited by the cost."

"I don't know if you know about artificial intelligence, but to be honest, when I was designing this rocket engine, I used artificial intelligence technology to assist me, and then calculated it through mathematical models, so I was able to develop such a rocket engine so quickly."

"As for the heat dissipation pipe, there was actually nothing wrong with my design. I decided to use a new technology, using 3D metal printing technology to integrate the heat dissipation pipe into the internal cavity, making it a highly concentrated cooling pipe."

Hearing this, Yang Anchao's eyes moved, and he immediately asked, "3D metal printing?"

Wang Donglai nodded and explained: "I plan to use LPBF technology."

As Wang Dong expressed his thoughts, most of the people present frowned and began to think.

Whether it is the artificial intelligence-assisted rocket engine design proposed by Wang Donglai just now, or the use of LDBF technology to integrate the heat dissipation duct into the internal cavity, this has broken through the design concept of traditional rocket engines.

As the older generation of aerospace experts, they had the technical skills required, so after a brief thought, they found that Wang Donglai's approach was theoretically completely feasible.

After realizing this, many people suddenly became interested in the rocket engine designed by Wang Donglai.

At the same time, his impression of Wang Donglai changed. "It seems that our country's level of LPBF technology is not capable of achieving this, right?"

At this time, an expert who was familiar with 3D metal printing technology asked.

Wang Donglai immediately replied: "That's right, so our company should set up a project to master LPBF technology. If everything goes well, we should be able to complete the test run of the rocket engine."

In the following period, one question after another was raised by the experts in the expert group.

Wang Donglai did not hide his shortcomings and responded to the experts' questions one by one.

With Wang Donglai's detailed explanation, the experts have a better understanding of the rocket engine designed by Wang Donglai.

Just at this time.

One of the experts in the expert group seemed to have suddenly thought of something. He was surprised and couldn't help but said loudly: "Academician Wang, did you solve the NS equation?"

Following the expert's voice, the scene fell silent.

After a moment's silence, the other experts also reacted.

"NS equation?"

"How can this be?"

"Why is this impossible? I have no doubt about Academician Wang's mathematical talent!"

"If the NS equations are solved, then it would be reasonable to design this rocket engine!"

Everyone was talking about it and everyone had their own opinions.

Just as Yang Anchao reacted when he heard the news, so did everyone else.

The solution to the NS equation is of great significance to both physics and mathematics.

Aerospace, physics, ocean and atmosphere will all be affected.

That's why everyone was surprised.

Among those present, only Yang Anchao and Wang Donglai appeared calm.

Seeing that other people performed the same way as he did before, Yang Anchao couldn't help but feel a sense of inexplicable pleasure in his heart.

Facing the looks of many experts, Wang Donglai said calmly: "I haven't really solved it, I just have a little idea."

Seeing that everyone was still asking questions, Wang Donglai added, "I have submitted the paper to Mathematical Futures. It will be published in two days. If you are interested, you can take a look at it then. I am also happy to discuss with you all."

When everyone heard Wang Donglai's admission, no matter what they had thought before, they were all a little shocked.

This is actually true!

A difficult mathematical problem that is almost two hundred years old has finally been solved by Wang Donglai.

Thinking of Wang Donglai's previous achievements, everyone couldn't help but have some doubts about what Wang Donglai had just said.

Just a small idea, could that be Wang Donglai's humble statement?

Thinking of this, the experts present felt like they were being scratched by a cat's claws and were extremely curious.

However, everyone had seen the world, so they calmed down and continued to review Wang Donglai's design plan.

After half an hour.

Most of the questions that needed to be asked had been asked, and the experts present had also asked some questions one by one, and they all had a general idea of ​​the situation in their minds.

The next step is to prepare to evaluate Wang Donglai’s design proposal.

After waiting for a while, the expert groups exchanged opinions.

This exchange caused problems.

Some people think that Wang Donglai's design is forward-looking and definitely worth a try.

Some people think that this design plan is feasible in theory, but if it is put into practice, there will inevitably be many problems.

"Academician Wang, the rocket engine design you designed is a good one, but I don't think it's feasible!"

"From this design, we can clearly see Academician Wang's talent in aerospace rockets. I believe that if Academician Wang continues to study for another two years, he will be able to perfect this design. By then, it will definitely not be a problem!"

In the end, the expert group reached a consensus.

When hearing the results of the expert review, Wang Donglai remained calm.

"Dear experts, theoretically speaking, is there any problem with the rocket launch I designed? Is it feasible?"

Wang Donglai looked at the many experts and asked calmly.

"Ok!"

"Academician Wang, we are not denying your design, but because..."

Before the expert finished speaking, Wang Donglai spoke.

"I think I have something to remind the experts."

"At the beginning, I said that I designed this rocket engine for my aerospace rocket company. In other words, it does not take up national scientific research funds, but is funded by Galaxy Technology."

"So no matter how high the cost is, it is Galaxy Technology's business."

"In addition, you are all industry experts and you all know the level of our country's aerospace technology very well."

"We have been crossing the river by feeling the stones all the time, which has saved us countless trial and error costs and saved us a lot of time."

"But this is not entirely a good thing. We are crossing the river by feeling the stones. Although it can save time and cost, we will inevitably fall behind."

"Our country is developing very fast, quite fast, but we haven't changed our mentality in many areas."

“It is impossible for a powerful country to always follow others and imitate and improve their technology.”

"We must try to develop new technologies, step out of our comfort zone, and bravely try and fail."

"This is also an important purpose for me to establish Galaxy Technology Space Rocket Company."

Wang Donglai spoke these words with great seriousness.

Everyone's expressions were different, and for a moment, the scene was extremely quiet. (End of this chapter)