The news that Qin Ke will go to Princeton University to attend an academic lecture conference at the end of the year has not yet spread. Only the school's senior officials and the leading professors of the two departments of mathematics and physics know about it.

The school attaches great importance to it. This is the first time that Qingmu University has made an academic report at such a high-profile world-class mathematics conference. It also affects whether Qin Ke and his academic achievements can be generally recognized by the international mathematics community. It can be said to have far-reaching and significant implications.

Vice President Gu personally invited five senior professors from the Department of Mathematics, including Professor Tian Jianlan, to simulate the question-and-answer session of the academic report.

The entire academic report is divided into two parts: report and question. Qin Ke only has 30 minutes for the report. It requires clear focus, clear organization, and consistent logic. This part is not a big problem. The most difficult part is the 15-minute question and answer session. Qin Ke

Need to answer questions from math experts from all over the world.

If a person fails to answer the question, he will be questioned as to whether he personally proved the twin prime number conjecture. He may even be suspected of having loopholes in the argumentation process and it is not a perfect proof. This will lead to subsequent "patches" provided by others.

The aura of great academic achievement.

Therefore, what Professor Tian and others did was to "find faults" as much as possible and "discover" all the details that might be asked, so that Qin Ke could fight a well-prepared battle.

Qin Ke knew that this was the school's good intention and a rare opportunity, so he did not proudly say "My argument is fine, you don't need to ask questions", but seriously took the time to cooperate.

His attitude was greatly appreciated by several professors and even school leaders. Even Professor Tian Jianlan, who had never praised others, showed an indifferent smile for the first time after finishing the mock questions and said: "Very good."

The results of the simulated questions made Qingmu University relieved. After the school found a professional company to design the "academic exhibition", it asked Qin Ke if he needed some PPT experts to help.

Qin Ke declined this time. The mathematics report did not require fancy effects, only practical information.

Because the report time was limited, it was impossible for him to explain the entire argumentation process in detail, so the PPT was mainly prepared around the proof ideas and core difficult and key points.

The attentive Ning Qingyun helped Qin Ke a lot in this regard. She had fully understood Qin Ke's thesis, and it was not too difficult to organize the content of the PPT. Moreover, the girl was clever and the PPT she made was detailed and layered.

Layer by layer, there is almost no need for Qin Ke to modify it twice.

After sending the prepared PPT and academic exhibition board PSD files to the email address of the Princeton University Conference Affairs Team in advance, Qin Ke basically no longer has to spend time and energy preparing academic reports.

Compared with preparing for the academic lecture at Princeton, the three fluid mechanics papers required by the system were more troublesome than Qin Ke imagined.

For more than a month, in addition to normal study and research on Polignac conjecture, he spent nearly 30% of his free time writing these three papers.

Computational fluid dynamics is inseparable from the "Navier-Stokes equations". The theory is divided into the analysis part. With three copies of S-level knowledge in hand, Qin Ke has no pressure. The difficulty lies in how to establish mathematical models based on actual problems and data.

Model, construct calculation method.

Physics is a practical subject, and its greatest significance is to describe and analyze real phenomena and solve real problems.

If you want to publish a paper in a top international journal, you must have creative, profound and practical theoretical value. Even computational fluid dynamics cannot do without the analysis and refinement of real experimental data.

Qin Ke repeatedly studied three pieces of S-level knowledge related to the N-S equation, and looked for several graduate tutors and professors in the physics department to ask if there were any topics related to fluid mechanics.

The time was spent in such a busy and fulfilling manner. Because the distance was too far, he could not fly back to celebrate his sister Qin Xiaoke's 15th birthday, so he and Ning Qingyun bought a pair of beautiful crystal bracelets for the little girl and sent them back.

.

Another important thing was a call from professional manager Zhou Shutao. An international publishing house called and wanted to buy out the full language copyright of the high school chapter of "Kitten Lemon and Puppy Keke's Amazing Mathematical Journey" for 80 million.

Qin Ke refused without hesitation. This price would certainly shock the entire Xia Kingdom's publishing industry if word spread about it, but for Qin Ke, it was considered a cheap sale.

He estimated that the final net profit generated by this set of teaching aids would be at least over 100 million.

"I also think this price is too low, okay, don't worry, we don't accept such a buyout, we only accept royalties." Zhou Shutao was originally reluctant to buy out and sell, but the amount was too large, so he had to ask Qin Ke about this.

It's just the big boss's opinion.

There was a follow-up to this matter. It is said that the large international publishing house was very dissatisfied with Qin Ke's "arrogance" and walked away. As a result, a few days later I heard that another rival publishing house was just for English, French, German, Italian and other ten languages.

When he was willing to pay 5,000 yuan and 20% of the selling price for the copyright fee of a foreign language (there is no limit on the foreign selling price and is determined by the publisher), he shamelessly hurriedly negotiated with "Qing Ning Technology" and negotiated the buyout amount.

Increased to 110 million.

Zhou Shutao still refused and chose another publishing house. In the end, this set of high school teaching aids received rave reviews internationally and was continuously sought after, and it directly entered the top twenty bestsellers in the world.

This is simply a miracle for a set of teaching aids, comparable to "Poor Dad, Rich Dad" and "The Little Prince". It also makes "Green Lemon Technology" and the contracted publishing house make a lot of money. As for that

A large international publishing house that was determined to buy it out was so regretful that its intestines turned green.

These are things for later and will not be mentioned for now.

Qin Ke's fluid mechanics paper made new progress on this day. Professor Hu, who teaches freshman physical mechanics courses, said that he has related topics.

He smiled and said: "Qin Ke, isn't your teacher, Academician Jiang Weixian, the best at fluid mechanics? You are looking for a porcelain bowl while holding a gold bowl."

This chapter is not over yet, please click on the next page to continue reading! Qin Ke naturally knows that, but Academician Jiang Lao is usually very busy, and the subjects are all very advanced and national-level cutting-edge novels. Qin Ke still has self-awareness, and his undergraduate level

It is difficult for their physical level to play any role in it, and Jiang Weixian also said that unless they pass his assessment, neither Qin Ke nor Ning Qingyun will be able to participate in his project.

After Qin Ke briefly explained a few sentences, Professor Hu became happy: "Originally, the current intention of the school is that you should concentrate on preparing for the academic report at Princeton. But if you really want to study computational fluid dynamics, I am here

There happens to be a secondary sedimentation tank project in a city sewage treatment plant, which uses CFD (computational fluid dynamics) models to analyze the distribution of liquid and solid phases. The ability to solve mathematical nonlinear partial differential equations is very demanding. My graduate student spent

I haven't been able to solve this bottleneck after two months. I also want to ask the professor of the mathematics department for assistance. If you have time, it would be best to help analyze and process this part of the data."

The implication is that Qin Ke is regarded as a professor.

Professor Hu said and added: "As for time, I don't have high requirements. I just need to get it done before January 20 next year. How about it?"

"Okay, I'll give it a try." Qin Ke took out his phone and looked at the schedule. Today is Sunday, Saturday. Princeton's academic lectures will start on Sunday after the Christmas holiday and end on January 6th. He has enough time.

After spending the past three weeks solving Professor Hu's problem, I readily agreed.

Professor Hu smiled and said: "I will take you to my graduate student to ask for data. Qin Ke, if you can help me solve this problem, there will be no need to attend classes for 'Mechanics I' this semester and 'Mechanics II' next semester."

, I will give you full marks directly.”

Now Qin Ke is most famous for his mathematical talent, number theory, and partial differential equations. He has no particularly eye-catching achievements in physics. However, if he can even solve the advanced problems of computational fluid dynamics, then there is really no need to

It's a waste of time to take a basic mechanics course.

It is almost certain that Qin Ke will be appointed as a professor in the future. Not only students, but also many faculty and staff want to get along well with him in advance. Professor Hu is flexible in his work and naturally wants to take this opportunity to get closer to Qin Ke.

Relationship.

Besides, he really needs someone to help solve this problem.

Qin Ke and Professor Hu went to the sewage treatment laboratory to copy the data, and then took a tour under Professor Hu's personal guidance and introduction.

Professor Hu’s topic is mainly about improving the sewage treatment efficiency of urban sewage treatment plants and reducing energy consumption. It is the technical research hope of a large domestic listed company. In the modern era when environmental protection and carbon neutrality are getting more and more attention, this topic

The results are far-reaching.

The part that Qin Ke is responsible for is only a small part of the secondary sedimentation tank link, but it is directly related to the subsequent improvement effect of the secondary sedimentation tank and is the key to this link.

Listening to Professor Hu's explanation, Qin Ke was a little excited. After all, his favorite scientific research was in the direction of improving human life in the future.

After getting the data, Qin Ke returned to the "Xiaowo No. 2" study room. Ning Qingyun hadn't come back yet. She was dragged by her roommates to go shopping. Girls want to get closer and build friendship. The most efficient way is naturally

Go shopping and eat delicious food together.

Qin Ke never wanted to tie Ning Qingyun to him and become his vassal. He often encouraged her to participate in group activities in the dormitory. Ning Qingyun's outing this time was at Qin Ke's request.

Qin Ke opened his laptop and copied the experimental data from the USB flash drive to the computer.

The amount of data in this part is a bit exaggerated. The nearly two hundred pages of raw data are messy and irregular. However, Qin Ke took a closer look and finally saw some clues.

"This part is data on turbulent flow problems. The fluid flow rate in the secondary sedimentation tank is relatively low and can be regarded as an incompressible Newtonian flow..." Qin Ke was no stranger to turbulent flow. He took out his scratch paper and began to calculate.
Chapter completed!