Senior Brother Zhao asked with a slight interest, "Do you have any good ideas?"

"Not yet, just want to know."

Zhang Yuan did not dare to say that he wanted to challenge the problems of this century directly, and he could not only attract ridicule people for nothing... Even in general, Senior Brother Zhao would not laugh at him, but would only suggest that he should not do such a big problem.

Soon, two days passed quietly...

The spacecraft had successfully turned, and the main engine shut down and entered a brief maintenance state.

An artificial light source from Europa shines on the light sails, allowing the entire mothership to enter a slow slowdown.

Light Road, a great technology.

Because of this technology, small spacecraft can quickly travel between the moon and Jupiter without carrying a large amount of fuel. In the past, at least half of the load capacity of spacecraft from the moon to Jupiter was used to load fuel. But now it is not necessary. Small spacecraft with hundreds or thousands of tons can reach Jupiter from the moon in just one month, which is a huge improvement.

Zhang Yuan witnessed the process of the main engine slowly extinguishing.

It was as if a pot of hot water was extinguished. Without enough temperature, the plasma light gradually faded and the nuclear fusion reaction stopped automatically.

From this perspective, the nuclear fusion engine is quite safe. It will not explode and will only automatically go out when the reaction conditions are insufficient.

In the engine room of the Earth Age, only one secondary engine and two molten salt piles are left to provide basic electricity.

Molten salt reactors are nuclear fission value-added reactors that helped humans through a long "gray era". The technology is quite mature, so they are usually used as backup energy. For the crucial safety of spacecraft, it is impossible to pin their hopes on a single fusion energy.

In the next period of time, relevant technicians will also carry out a series of maintenance of the entire engine.

The entire internship in the engine room is temporarily over...

Zhang Yuan returned to the living area a little confused.

He has a few days off for a break and has to go to work at the nuclear power plant next time. There is nothing big about it anyway, so he is going to stay at home to read the paper.

Well, after reading the turbulence problem for a few days, he has no idea about it. After all, it is a world-class problem...

At six o'clock in the evening, a small dinner was held at the "Big Rice Barrel Restaurant" in Area A.

No matter how busy Academician Ding is, he will take some time to invite everyone to have a meal at the beginning of each month and care about the situation of several disciples.

"Are you trying to do turbulence problems?"

"Just want to know something..." Zhang Yuan said honestly in the face of his teacher.

Ding Zhaodong smiled, perhaps because he remembered when he was young and frivolous, and did not attack this young disciple.

"It is indeed a very difficult problem. Many people have been studying it for more than ten years but still cannot write a very good article, and they have wasted their time in vain. If you want to do this, you must be mentally prepared."

"If you don't understand anything in mathematics, you can ask Senior Brother Luo Wenhao, or you can come and ask me directly."

Senior Brother Luo, who was sitting on the side, was almost forty years old and had already graduated from a doctorate. He was very busy at work and rarely attended such parties.

This is the first time Zhang Yuan has seen him.

Senior Brother Luo is a great man who is engaged in research in the field of information. However, his direction is instead biased towards mathematics, which is quite famous in the study of positive curvature, and has solved two famous hopf conjectures.

Why are there two? Because there are many hopf conjectures, one is "there is no positive cross-section curvature measurement on s^2xs^2" and the other is: "The Eulerian representational numbers of even-dimensional regular curvature manifolds are all positive."

Two conjectures, he could have won two big prizes, but he was taken over by himself.

Zhang Yuan was solemn and felt a desire to hold his thighs.

"Senior Brother Luo!"

"Turbulence problem, haha, ambitious! I like to make friends with these ideal young people the most. I have also studied this aspect before."

There was also Mrs. Luo's wife sitting around her, a female mathematician in her thirties in Languo. She was dressed elegantly and had a special Victorian flavor.

"Hello. Are you Zhang, who owns 300 kilograms of gold?"

Zhang Yuan smiled and said, "Ms. Mo, don't joke. Actually, I like to have 300 kilograms of antimatter, which can be used for experiments."

"Is that so? The price of antimatter is too expensive... You have a high reputation among the girls in our F-district! Do you want me to introduce you to me?"

Zhang Yuan couldn't help feeling a little embarrassed, "Listen to Languo girls, there are already several people to choose in my address book..."

Everyone laughed.

The atmosphere on the entire dining table was very relaxed. Everyone first talked about personal development in recent times, and then talked about some academic gossip news, which was quite interesting.

Including some people's proven mathematical problems; new breakthroughs in condensed matter physics; the famous journal "Modern Science" has been found to have academic corruption problems, and its influence has plummeted, etc.

"There are more and more people with depression. If diagnosed, they will get off the spaceship in Europa and return to Earth."

"That's how..."

"Modern Science is temporarily suspended, and several reviewers have been investigated. They have submitted manuscripts there before... I didn't expect this situation to happen."

"Academic corruption may exist in every place. It is difficult to completely avoid it...it mainly depends on the humanistic environment to restrain it."

Zhang Yuan was shocked. The sharp decline in influence of this journal will not be related to the incident that happened to him, right?

However, when he found that everyone did not focus on his discussion, he gradually felt relieved.

After the dinner, Zhang Yuan discussed with his newly-know Senior Brother Luo.

"The problem of turbulence mainly requires inhomogeneous turbulence direction. After reading the paper, the first thing I thought of was Fourier analysis and related integral transformations. Later I found that it was not very correct..."

This is his intuitive idea.

"Fu Liye's analysis is too ordinary." Senior Brother Luo smiled and said, "I thought about it at that time, and later I found that the thing is only suitable for uniform turbulence. Even if it is made, the fitting effect will not be very good, and it does not make much sense."

Zhang Yuan agreed: "It would be good if it was used as the test questions in the test paper."

Senior Brother Luo slapped his head and seemed to have thought of something. "It is not easy to use pure numbers. If it is a direct numerical calculation, I have seen a good idea, using les and using non-equilibrium and equilibrium wall functions respectively..."

"The impact on the calculation of each parameter of the wall under three different meshing conditions and compared with the corresponding dns results... This is an algorithm that has been quite innovative in recent years, but in actual application, it is a bit worse than your father's algorithm."

Zhang Yuan suddenly had a flash of inspiration, as if he had grasped something, "Grid division?"

"So, can we divide the entire observation results into a certain type of community, and first break down the entire big problem into small problems..."

"Society?"

Senior Brother Luo was stunned for a moment, "But in the end you still have to merge the entire problem, otherwise all the data will be meaningless. What is the method of division and merging?"
Chapter completed!