Deep Space Planet Leader

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

"Not yet, just want to understand. "

Zhang Yuan doesn’t dare to say that he wants to directly challenge this century’s problem. The province’s plainly invites people to laugh at him... Even if he is generally speaking, Senior Brother Zhao will not laugh at him, but will advise him not to do such a big deal. That’s all.

Soon, two days passed quietly...

The spaceship has been successfully turned, the main engine shut down suddenly and entered a short maintenance state.

The artificial light source from Europa shines on the light sail, causing the entire mothership to slow down.

Light path, a great technology.

Because of this technology, a small spaceship can quickly travel back and forth between the Moon and Jupiter without having to carry a large amount of fuel. In the past spaceship, from the moon to Jupiter, at least half of the deadweight was used for fuel. But now it’s no longer needed. A small spaceship of hundreds or thousands of tons can reach Jupiter from the moon in just one month. This is a huge improvement.

Zhang Yuan witnessed the process of slowly turning off the main engine.

It is as if a pot of hot water has been poured out. Without enough temperature, the light of the plasma gradually goes out, and the nuclear fusion reaction stops automatically.

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

In the engine room of Earth Era, only one auxiliary engine and two molten salt piles are left to provide basic electrical energy.

Molten salt reactor is a kind of nuclear fission value-added reactor that has helped mankind through the long "gray age". The technology has been quite mature, so it is usually used as a backup energy source. For the vital spaceship security, impossible puts its hopes on a single fusion energy source.

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

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

Zhang Yuan returned to the living area a little dazed.

He has a few days of vacation to take a break, and then he has to go to the nuclear power plant to work. Anyway, there is nothing too much to do. He plans to stay at home and read the paper.

Well, regarding the turbulence problem, after reading the literature for a few days, he has no idea at all. After all, it is a world-level problem...

At six o’clock in the evening, a small The dinner is being held in the "Big Rice Bucket Restaurant" in Area A.

Even if Academician Ding is busy, he will spare a little time at the beginning of every month, please have a meal, and by the way care about the status of a few dísciples.

"Are you trying to do a turbulence problem?"

"Just want to know..." Zhang Yuan obediently and honestly said to his teacher.

Ding Zhaodong laughed, perhaps because he remembered that when he was young and frivolous, he did not hit this young dísciple.

"It is indeed a difficult and difficult question. Many people have studied for more than ten years and cannot write particularly good articles. Time was wasted. If you want to make a fuss about this aspect, You have to be mentally prepared."

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

Sit aside Senior Brother Luo is almost forty years old and has already graduated from Academician. He is very busy at work and rarely attends such gatherings.

This is the first time Zhang Yuan has seen him.

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

Why are there two? This is because Hopf conjecture originally has multiple ones, one is "S^2XS^2 has no metric for normal section curvature", and the other: "Eulerian characteristic numbers of even-dimensional positive curvature manifolds are all positive".

Two conjectures, he could have won two big prizes, but he ended up doing it all by himself.

Zhang Yuan is in awe and a desire to hug his thighs.

"Senior Brother Luo!"

"Turbulence problem, haha, ambitious! I like to make friends with these youngsters who have ideals. I have studied this before. "

Senior Brother Luo’s wife, a female mathematician from Orchid in her thirties, is also sitting around her. She is elegantly dressed and has a special Victorian flavor.

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

Zhang Yuan said with a smile, "Ms. Mo, don’t be kidding, actually I’m even more I like to have 300 kilograms of antimatter, which can be used for experiments."

"Really? The price of antimatter is too expensive...You have a high reputation among the girls in our F zone! Don’t let me introduce it for you."

Zhang Yuan couldn’t help but feel a little sorry, "girl from Lan, there are already several options in my address book..."

Everyone laughed.

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

Including the mathematical problems that someone proved; condensed matter physics has a new breakthrough; the famous "Modern Science" journal, because of the detection of academic corruption, its influence has plummeted and so on.

"There are more and more people suffering from depression. If they are diagnosed, they will go to spaceship on Europa and return to Earth."

"This way..."

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"The publication of "Modern Science" has been temporarily suspended. Several reviewing editors have been checked, and they have submitted manuscripts there before...This is the case with didn't expect."

"Academic corruption may exist everywhere. It is also difficult to avoid completely...We must rely on the humanistic environment to restrict it."

Zhang Yuan heart startled, this journal influences The drop in strength has nothing to do with what happened to him, right?

However, when they found that everyone did not focus on him, they gradually let go of their hearts.

After the dinner, Zhang Yuan discussed a few words with the newly acquainted Senior Brother Luo.

"For turbulence problems, the main problem is to do non-uniform turbulence direction. After reading the paper, I immediately thought of Fourier analysis and related integral transformation. Later I found that it was not right..."

This is his straight Visualization Technique.

"Fourier analysis is too ordinary." Senior Brother Luo said with a smile: "I also thought about it at that time. Later I found that the thing is only suitable for uniform turbulence. Even if it is done, the fitting effect is also good. It won't be very good, it doesn't make much sense."

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

Senior Brother Luo took a shot In my head, it seems 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 influence on the calculation of the wall parameters under the conditions of three different meshes, and the comparison with the corresponding DNS results... This is a fairly innovative algorithm in the past few years, but In actual application, it’s a bit worse than your father’s algorithm."

Zhang Yuan suddenly divine light flashed, as if grasping something, "meshing?"

"So, can we divide the entire observation result 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 whole problem back, otherwise all the data will be meaningless. What is the method of dividing and merging?"

"This...I will pay for it for the time being. Did not think about it."