Qin Ke first looked at his test paper and saw the words "Using thermodynamics and atmospheric circulation to establish an experimental model to analyze the causes of excessive rainfall under extreme weather."

The content of the test paper is also very simple, with only one paragraph: "The original data can be checked through the school's electronic library, and you can also borrow the laboratory of Professor Hu Qingfeng of the school's Department of Physics. You don't have to worry about all costs. Time limit: two weeks."

Qin Ke couldn't help but complain in his mind, is this really an undergraduate exam... Are you sure it's not a graduate level exam?

Although he is no longer unfamiliar with doing projects, especially the teachings given by Professor Hu Qingfeng and Professor He Liangfu some time ago made him familiar with the management process of the entire physics project, but now he suddenly has to do physics independently

It’s a subject, and it’s not an easy subject, so I’m really a bit dumbfounded.

However, when the paper was obtained and the topic was set, Qin Ke could only sigh. It was indeed an exam for an academician. Others used pens to answer the questions. Academician Jiang gave him a topic directly. Even the source of the original data, the venue and the cost were all explained in advance.

solved.

Qin Ke looked at Ning Qingyun's test paper next to him and saw that it had the same content.

It seems that although the exam arranged by Academician Jiang is a bit more difficult, it is not so outrageous that the two of them can complete a topic separately. They can still cooperate and complete it together.

——Of course, the main reason is probably that they don’t want the two of them to spend too much time on this graduation exam.

Academician Jiang Weixian looked at the two people looking at each other with a slight smile on his lips.

He has no doubt that these two disciples have fully mastered the knowledge points of the seventeen designated physics textbooks. In fact, he has a copy of all the course schedules and final grades of these two disciples. For Qin Ke and Ning Qingyun

They already knew their level of physics and knowledge, so naturally they would not use ordinary tests to test them.

According to his judgment, with the physics level demonstrated by Qin Ke and Ning Qingyun in fluid mechanics, it would not be difficult for them to obtain a master's degree.

The reason why Jiang Weixian came up with this topic to test the two of them was, firstly, to increase training opportunities, and secondly, to lay the foundation for them to join his key research group.

His research laboratory is a national key research laboratory. There are more than a dozen researchers with senior professional titles, and dozens of associate researchers. Graduate students in the school can only join as basic handymen. Ph.D.

Only graduates can barely work as research interns, and postdoctoral students have the opportunity to work as assistant researchers.

Qin Ke and Ning Qingyun joined as graduate students. If they want to skip the odd jobs and directly follow the class as interns, they must show enough strength to convince the public.

This independent project is a good opportunity - it is actually part of a research group on the Navier-Stokes equations that studies atmospheric circulation problems.

If Qin Ke and Ning Qingyun can complete this topic independently within two weeks by themselves, it can basically prove that their strength is comparable to that of doctoral students and they are qualified to be interns - although Qin Ke and Ning Qingyun

The current job title is "associate researcher", and there are even rumors that he will be promoted to professor-level "researcher" this month, but that is only in the direction of mathematics. In physics, the two of them have not yet achieved as dazzling results as in mathematics, so

The best you can do is start as a research intern.

It can be said that in order to allow the two students to better embark on the path of scientific research, academician Jiang Weixian has taken great pains.

"Okay, you can go after you get the test questions. When you finish this topic and write the paper, please contact me to review it."

"Yes. Qingyun and I will work hard." Qin Ke and Ning Qingyun saluted Jiang Weixian before saying goodbye and leaving.

…

During the summer vacation, it was hard to see any students on the campus of Qingmu University. Most of the students went back home after the special lecture on the Goldbach Conjecture Proof, making the campus quiet.

- Even the basic science class had a farewell dinner for the two of them, but knowing that Qin Ke and Ning Qingyun still lived in the original dormitory and continued to study in school, the sadness in the basic science class became much lighter.

Walking on the sunny school road at this time, Ning Qingyun frowned and said: "This topic assigned by Teacher Jiang seems to be quite difficult."

It's not that she finds it troublesome. In fact, she likes physics very much. She is very happy to be able to exercise herself on such a subject.

The main reason is that she knows that Qin Ke is still concentrating on deriving the fifth set of expressions of the Riemann Hypothesis, and is afraid that this relatively complex experimental topic will distract Qin Ke's energy and ultimately affect Qin Ke's competition for the Fields Medal.

Especially in early August, the two of them had to fly to the United States to receive the Steele Prize from the American Mathematical Society, and the round trip took nearly ten days.

This will give Qin Ke less time to study the Riemann Hypothesis.

It was already a bit hot in Qingmu University in midsummer. The two of them were holding hands, and there would be slight beads of sweat on their palms.

But no one wanted to let go of the other's hand. The separation some time ago made the intimacy between the two of them stronger.

Qin Ke felt the softness and warmth of the girl's little hands and said with a smile: "It doesn't matter, it's just a very simple small topic. As long as we get the original data, establish a mathematical model and analyze it, we can roughly know the main causes, and then based on

Let’s make an experimental model for verification. It won’t take much time.”

Ning Qingyun pondered for a while and suddenly suggested: "How about leaving this project to me alone. Just focus on the Riemann Hypothesis. This project is a bit difficult, but in two weeks, I am still confident

of."

Qin Ke understood what she was thinking and couldn't help but stretched out his hand to rub her hair: "Fool, we had to go to class every day, and we still have a few topics at hand. It didn't delay me from researching the first four sets of expressions of the Riemann Hypothesis.

Right? We don’t need to worry about the topics of computational seed science and new desert sweet potatoes for the time being. The ‘topological quantum computing topic’ in collaboration with Professor Kopet will not receive new feedback until the end of the month at the earliest. In other words, in the next dozen or so

During the three-day holiday, I have nothing else to worry about except the Riemann Hypothesis, and adding a small topic of atmospheric circulation is nothing at all."

This chapter is not finished yet. Please click on the next page to continue reading the exciting content! "But..." Ning Qingyun still wanted to persist. Qin Ke stared at her pretty face and said warmly: "Besides, if you stay alone,

In the laboratory, I stay alone in the study room, don't I feel particularly lonely and boring? At least in my eyes, without you, most of the fun of learning and scientific research has been lost."

Ning Qingyun's heart seemed to have been hit by something, and it suddenly softened. The tenderness and affection that Qin Ke's fingertips rippled through her hair made her feel like she was being rubbed softly.

Qin Ke smiled warmly and said: "Besides, rather than deriving the fifth set of expressions of the Riemann Hypothesis as soon as possible, I think it is much more interesting to walk slowly with you and see the beautiful scenery on the scientific research road.

"

Qin Ke also had some thoughts. Although the Fields Medal is very good, it is an award judged by foreigners after all. There is no need for his study, scientific research and even life to revolve around it.

Qin Ke didn't want to look back on the past and find that in the past six months, all he had in mind in life was the Fields Medal.

He even wanted to embed every bit of his time with Ning Qingyun, as well as the sweetness and fulfillment of working hand in hand on the road of scientific research, into the depths of his memory, and eventually pave it out into moving pictures of growing old together.

Besides, my ability is certified by the system as a "Grand Master". With such ability, I will get the Fields Medal sooner or later. Even if there are any surprises this time and I don't get it, I will definitely win the next one.

Therefore, although Qin Ke still aims to crack the Riemann Hypothesis and win the Fields Medal, he is no longer anxious and does not put too much pressure on himself. He pays more attention to the present than the future.

Listening to Qin Ke's emotional words, the girl's eyes were filled with crimson shyness and sweetness, and a shy smile appeared on her pretty face that was originally glowing with a healthy blush, but her heart was beating faster and faster.

, my heart is overflowing with love for this boy.

She bit her red lips, glanced quietly at the quiet surroundings, suddenly opened her arms, hugged Qin Ke's neck tightly, and stood on tiptoes.

The next moment, Qin Ke's lips were covered by the touching and moist touch of warm fragrance.

Qin Ke's heart also beat hard.

This girlfriend, who is usually shy, will always do such bold and exciting things when she is impulsive.

Qin Ke hugged the girl tightly in his arms and accidentally saw the bright sunshine. He couldn't help but feel in his heart that youth is so good and love is so good.

…

This "excessive rainfall issue" is not difficult to say, but it is not easy to say. Qin Ke and Ning Qingyun spent nearly three days soaking in the library, with the help of artificial intelligence Shimmer to sort out the data.

Only then did we find enough data, which also included some news about heavy rainstorms, as well as astronomical and meteorological data at that time.

These complicated data seem to have no rules in the eyes of others, but after Qin Ke and Ning Qingyun conducted several data screenings and converted them into charts, they saw many traceable clues, some of which were not among these rules.

A special case is the "excessive rainfall" for which the cause is required to be explained in the topic.

Excessive rainfall is often caused by extreme weather. The dynamic causes are diverse, the formation mechanism is complex, and the probability of occurrence is extremely low. If you want to analyze the main causes of its occurrence, you must find out which factors affect them, causing them to break out of the conventional rules. Ultimately,

It developed into "excess rainfall".

This would have required a lot of effort to list all possible factors, such as the interaction of multi-scale circulation systems leading to abnormally strong upward movement of airflow, unique terrain factors, external environmental factors such as typhoons, subtropical high pressure factors, monsoon climate, etc.

.

But for Qin Ke, who holds the first, middle and second parts of "Exploration and Detailed Explanation of Nonlinear Partial Differential Equations "Navier-Stokes Equations"" in his hands, it is as if he has learned advanced mathematics to solve junior high school problems.

It is as simple as a quadratic equation of one variable.

Qin Ke originally wanted Ning Qingyun to start researching N-S equations, so he took the opportunity of this topic to continuously impart relevant knowledge and theory to her, deduce it, and cooperate with her to establish an effective set of

mathematical model.

Five days later, a set of mathematical models code-named "Circulation-Thermal Impact Model" was established. This set of mathematical models is suitable for excess rainfall events with total precipitation exceeding 1000mm in recent decades, and can be completely simulated through detailed data.

circulation evolution process and corresponding spatiotemporal characteristics, and quantified the thermal factors of climate change.

After the model was established, the two adopted the policy of "keeping the value of a certain factor constant and analyzing the changes in rainfall under different extreme climates" and quickly deduced the key factor: the proportion of factors affecting global warming.

%, the influencing factors of water vapor transport accounted for 16%, the influencing factors of atmospheric stratification stability accounted for 17%, the influencing factors of vertical ascent motion and condensation latent heat feedback accounted for 21%...

In addition, human activities, especially the creation of urban agglomerations, will also have an impact on climate, which will eventually lead to the birth of extreme climate with a certain probability.

After the mathematical model is completed, it becomes a more complex experimental model. The existing instruments and equipment in Hu Qingfeng's laboratory must be used to design experiments that can verify the mathematical model.

After discussion, Qin Ke and Ning Qingjun decided to use the quasi-geostrophic single-column simulation method (the CQG method). This method is based on the quasi-geostrophic vertical velocity equation (one of the sub-derivations of the N-S equation) to simulate atmospheric circulation and heat.

Dynamic interactions, and several sets of experiments were designed for comparison and verification.

The construction and operation of the entire experimental model were done by the two of them personally. Although it was a bit cumbersome, the two of them enjoyed it.

Professor Hu Qingfeng has also been here several times, standing by and observing with interest. The more he looked at Lao Hu, the more surprised he became.

Because he found that the experimental model established by the two students was very targeted. At least judging from his professional perspective, it was completely correct and had great reference value. Lao Hu even wanted to call members of his project team to visit and study.

Later, he was afraid of disturbing the two people who were concentrating on the implementation, so he reluctantly endured it, but he had already made up his mind. He would definitely ask Qin Ke and Ning Qingyun afterwards to discuss the topic paper on atmospheric circulation and thermodynamics.

Use it as a reference material for study and discussion by your own research team.

This chapter is not finished yet, please click on the next page to continue reading the exciting content! In the end, Qin Ke and Ning Qingyun only spent eleven days to complete the entire project and wrote a paper, which was handed over to Mr. Jiang

In the hands of academicians.

After Academician Jiang saw it, he only said "good" and asked the two of them to come to the door and get the graduation certificate and degree certificate.
To be continued...