Development of productivity started in 1981

Chapter 189 Seminar on Application of NS Equations

"Jiankun, you're here! Come and take a look at this magazine, the latest issue of 'New Advances in Mathematics'. Your paper is on page three, very early in the article." Zhang Yi, the head of the Department of Mathematics, handed a magazine with a color cover to Wang Jiankun with a smile on his face.

"Professor Zhang, how come it was published so quickly? Didn't it take more than 10 days to send it over? And it has to go through reviews, and then we have to wait in line for publication." Wang Jiankun took the latest issue of New Advances in Mathematics, opened it, and saw that his paper was the second article after the magazine's introduction.

"Jiankun, you are really lucky. Along with the magazine came a letter from the editor, which roughly described the situation. The quality of your paper is very high. The editor immediately sent it to other professors for review. Those professors also had time to read the paper, and they all gave it very high praise.

Two professors at Princeton University also strongly recommended that you arrange publication as soon as possible because the mathematical tools in your paper are very helpful to the problems they are currently studying, so they hope that your paper can be published as soon as possible so that they can cite it.

With the strong recommendation of those two professors, and the fact that a paper was withdrawn in this issue, your paper was printed and published very quickly. Jiankun, not only is your paper well written, but you are also lucky~." Professor Zhang said happily while picking up a letter from the drawer and handing it to Wang Jiankun.

Wang Jiankun took it and took a look. It was just as Professor Zhang said. He was lucky, otherwise it would have taken until the next issue to be printed even at the fastest speed.

"Jiankun, you published a paper in a top mathematics journal like New Progress in Mathematics. The school has a 100 yuan reward. We didn't tell you about this in advance. Let Teacher Liu take you to the Finance Department to collect it. The process has been completed. You can go there and sign and collect it."

"There's also a 100 yuan reward, that's great!" 100 yuan is not a lot of money for Wang Jiankun, but it is a reward from the school and has a different meaning. He was very happy after hearing the news.

"Jiankun, I heard from classmates that you almost never go to evening self-study classes, and often stay in the dormitory or library to write. Are you preparing a new paper?" After Director Zhang told Wang Jiankun the news of the award, he asked about his recent situation.

"Professor Zhang, these are two papers I wrote in the past month on the research of the NS equations. One describes fluid motion, and the other studies the characteristics of air flow." Wang Jiankun took out the two prepared papers from his bag and handed them to Professor Zhang.

"Oh, two papers, still about the research of NS equations. Let me take a look."

"Description of the deformation motion of fluid infinitesimal elements in the instantaneous sense by the NS equations", "Correlation analysis when air interacts with objects", Professor Zhang took the two handwritten papers on the letter paper, looked at the titles first, and found that from the titles, Wang Jiankun should have a relatively in-depth understanding of the specific applications of the NS equations, but he didn't know what the quality of the papers was.

Professor Zhang is not an expert in this field, but that does not affect his preliminary review of the paper. If there are obvious errors, it will be regarded as Wang Jiankun's level not up to par. If he cannot see the problem, then it is necessary to find relevant people for further review.

For the next half hour, Director Zhang carefully looked through the two handwritten papers by Wang Jiankun. When he encountered some calculation parts, he picked up a pen to check the calculations on the notebook.

"Director Zhang, the meeting is about to start, look~" Teacher Liu saw that an important meeting in the department was about to start, so he had to remind Director Zhang.

"Ah? It's time already?" Director Zhang looked away from the paper, looked at his watch, and found that the meeting time was indeed about to arrive.

"Teacher Liu, you take Jiankun to the Finance Office to receive the award. After that, you write a commendation notice, mentioning that Wang Jiankun published an important paper in New Advances in Mathematics. Put it on my desk after the meeting. After I sign it, I will give it to the Propaganda Department and ask them to publicize it." Director Zhang quickly assigned a task to Teacher Liu.

Then he turned around and said to Wang Jiankun: "Jiankun, these two papers are very good. I took a rough look at them and didn't find any problems at the moment. However, we need to find a more professional person to judge them specifically, so that we can decide what level of journal to submit them to. So you have to go back and wait for notification. Don't go out for the next two days, just stay in school!" Professor Zhang said kindly to Wang Jiankun.

"Okay, Professor Zhang. I've been at school these past two days. If I'm not in the classroom, I'm in the dormitory."

"Okay, then you and Teacher Liu go collect your prize first!"

"Student Jiankun, please follow me. You must have brought your student ID card with you. If not, I will go with you to get it and then go to the Finance Department."

"I have my student ID with me, Mr. Liu, let's go."

In this way, the three of them left the department director's office together. Director Zhang walked to the conference room in the distance, while Wang Jiankun followed Teacher Liu to collect the thesis bonus.

"Teacher Liu, is there any specific reward system in this school?" Wang Jiankun was bored and asked Teacher Liu about the school's reward system.

"Student Jiankun, let me give you a general idea. Generally, this kind of paper award is for seniors and graduate students, because freshmen to juniors can hardly publish papers. It is very good that you can receive this first-tier award not long after the start of the school.

The situation regarding students in this academic achievement award is roughly as follows: the first prize is 100 yuan, and the requirements are probably to publish a paper in a top international journal, or to give an academic report at an important international academic conference.

The second prize is 80 yuan, and the requirement is to publish a paper in an international second-level journal. The third prize is 60 yuan, and the requirement is to publish a paper in an international third-level journal or a domestic journal.

As for the level of those journals, I can show them to you if you need them." Teacher Liu talked about the school's academic awards.

"Okay, Mr. Liu, thank you."

"You're welcome, Jiankun-san."

Teacher Liu was very polite to Wang Jiankun. He could tell from the department head's concern for Wang Jiankun that Wang Jiankun had a very bright future. It was also understood that Wang Jiankun himself was very capable. He was the top scorer in this year's national college entrance examination. Not long after the start of his freshman year, he had not only published papers in top international journals, but judging from the way Director Zhang looked at the two papers just now, there might be two more papers to be published. Although the school has encouraged everyone to publish papers in recent years, and will provide foreign exchange to help send papers with potential to foreign journals, and will also reward students who successfully publish papers, so far, only more than 10 people have received the first prize, and they all published their papers in their senior year or graduate school.

After Wang Jiankun followed Teacher Liu to receive the bonus, he followed him to the office to get a school award document, which included a classification of some current international journals.

He went to get this information, on the one hand, to find out the highest institution of learning's understanding and attitude towards various international academic journals so that he could use it as a reference; on the other hand, he also wanted to let several other disciples try to publish papers, which would quickly improve their status and allow them to participate in subsequent research and development more quickly.

In the next two days, apart from attending classes, Wang Jiankun spent most of his time in the dormitory, busy sprinting towards the final solution of the NS equation while waiting for Professor Zhang's notification.

As for Professor Zhang, apart from the things that he really couldn't push forward, he kept talking to experts in different fields to learn about their research on fluids.

As he made phone calls one after another, many experts in the fields of mathematics and fluid mechanics in China learned that Professor Zhang had important research results. So in addition to answering questions, they came to him for the original papers and to learn about the authors.

Director Zhang gradually understood the importance of Wang Jiankun's two papers from the replies of these experts and scholars. He couldn't help but regret having called everywhere to ask, but it was too late now. One after another, some experts began to inquire. At that time, he didn't pay attention to ask them to keep it confidential, but now it has become almost known to everyone, not only experts in the field of mathematics, but even several bigwigs of national defense engineering in the Academy of Sciences have been alarmed.

So he quickly organized an academic seminar, focusing on studying Wang Jiankun's two papers. At this time, he was very careful. He carried the original papers with him, and then personally read them while they were being copied. After the people in the copy room finished copying, he immediately collected the original papers, and also collected all the copies and took them away.

"Student Jiankun, you are in the dormitory. I looked for you in the classroom but couldn't find you. Come with me to Director Zhang's office quickly. I have something important to tell you." Teacher Liu ran to Wang Jiankun's dormitory to find him, breathlessly, the next afternoon.

"Teacher Liu, what's the urgent matter?" Seeing Teacher Liu panting, he quickly invited him to the dormitory and poured him some warm water.

Teacher Liu quickly took two big gulps, and after a pause, he said, "Student Jiankun, the department director asked me to find you immediately and take you to his office. He didn't say what the matter was, but it should be related to the two papers you gave him the day before yesterday. The director has been busy with this matter most of the time these two days."

"Okay, let's go quickly." After saying that, he put on his clothes and hat, and followed Teacher Liu to the department director's office.

At this time, the sun was setting in the west, and the heat it brought to people did not bring a trace of heat. However, the two men walked quickly, and soon they began to sweat. After Wang Jiankun's body started to heat up, he had to take off his hat, otherwise the sweat would have soaked the hat.

"Jiankun, wait for me, you're walking too fast, I can't keep up with you." Teacher Liu is about 1 meters tall, so his stride is much smaller than that of Wang Jiankun, who is 65 meters tall. He fell far behind Wang Jiankun halfway through the journey.

Wang Jiankun thought that a few minutes would not matter, so there was no need to make things difficult for Teacher Liu. Otherwise, if he arrived first, it would not be good for Teacher Liu to fall behind. So he quickly stopped and waited for Teacher Liu to catch up, and then maintained a speed similar to that of Teacher Liu.

"Jiankun, you young people have better physical strength. I can't keep up."

"Teacher Liu, the paperwork is too tiring. You don't have time to practice during normal times. You can practice when you have time."

"It's so rare to have free time. There's a lot of work to be done right now, and the school has so many tasks and activities that I seldom have free time on weekends." After Teacher Liu caught his breath, he told Wang Jiankun about his work situation.

Originally, Teacher Liu was mainly responsible for some work in the department and served as Director Zhang's assistant. Now, because the college entrance examination has only been resumed for a few years, there are few people with a certain level, so he has to take on multiple roles, so he looks like he is 30 years old at the age of 40.

Wang Jiankun chatted with Teacher Liu for a while, and then went to the office of the Department of Mathematics.

"Director, Jiankun is here."

"Jiankun, come in quickly, Mr. Liu, you have to get off work later today, and you will need to help out in the conference room when the time comes."

"Okay, Director. I'll go get the meeting room ready now. Do you want someone to bring dinner over?"

"Oh, I forgot it's almost dinner time. Teacher Liu, can you please bring two more meals to my office? Jiankun and I will eat together."

After saying that, he pulled Wang Jiankun to discuss the two papers.

"Jiankun, I have contacted several experts in fluid mechanics these past two days. They spoke highly of many of the methods in your paper. Many of the new mathematical tools are very helpful to their current research. They want to talk to you in more depth because there are still some parts in your two papers that they cannot understand."

"Okay, I was thinking of discussing this with the experts as well. I wonder what they don't understand."

"This, this, and this, Jiankun, they will be here after dinner, you should think about how to explain it to them first." Professor Zhang pointed out to Wang Jiankun the parts that several experts did not understand.

Wang Jiankun took it and looked at it. It mainly contained several mathematical tools he created and an approximate transformation of the general solution of the NS equation. He is currently studying this most critical step. The brute force solution of the sophon has been proven to be mathematically feasible, but how to prove it using conventional methods still requires him to use his imagination to crack it.

So Wang Jiankun organized his language and first explained the mathematical tools he created to Professor Zhang. Professor Zhang listened and tried to understand. When he encountered something he couldn't understand, he asked Wang Jiankun to explain it in detail.

Because the experts who came this time were mainly in the field of mechanical engineering, they did not know much about pure mathematics research, but they were masters in application. It is understood that they have participated in the research of several domestic rockets and aircraft. This time, they saw several application methods in Wang Jiankun’s two papers. They tried to use them and found that they were very helpful for the calculations at hand. Not only can they greatly simplify the difficulty of calculations, but also improve the accuracy. It can be said that after using the method provided by Wang Jiankun, the design of corresponding aircraft will be greatly accelerated in the future, and the calculation precision will be improved by more than one order of magnitude.

"The meal is here, Director, Jiankun, please eat quickly and continue after you finish eating." Teacher Liu ran to the cafeteria and came in with four large lunch boxes.

"Okay, thank you for your hard work, Professor Liu. Jiankun, let's eat first. We won't have time when those experts come, and we don't know how late it will be." Professor Zhang quickly put away the paper, cleared his desk and opened the lunch box. There were two boxes of dishes and two boxes of rice, and one of the hard dishes was braised pork. It looked red and greasy, and the fragrance instantly spread throughout the office. Wang Jiankun's stomach couldn't help but growl.

"Haha, Jiankun, eat quickly, your stomach is protesting." Professor Zhang heard the rumbling sound of Wang Jiankun's stomach and handed him a pair of chopsticks while teasing him. He also picked up a pair of chopsticks, picked up a lunch box, put a piece of braised pork into his mouth, and then put big mouthfuls of rice into his mouth.

Wang Jiankun was no longer polite and took the chopsticks and started eating. The two of them finished the braised pork first, and then picked up the white radish and green vegetables from the other lunch box. Although Professor Zhang was older, his appetite was no smaller than Wang Jiankun's, and the two dishes went into their stomachs almost equally.

"Ha, so comfortable. Jiankun, are you full?" Professor Zhang put down his chopsticks and asked Wang Jiankun after finishing his meal.

"I'm full, Professor Zhang. I'll go wash the chopsticks and lunch box."

"No need, just leave it there and deal with it tomorrow. Let's go to the conference room and wait. The experts will be here soon." Professor Zhang looked at his watch and asked Wang Jiankun to go to the conference room with him.

Wang Jiankun readily followed suit, covered the lunch box and placed it together with the chopsticks on an empty shelf nearby, and then helped take the papers to the meeting room.

Not long after arriving at the conference room, experts who were going to attend the NS equation seminar arrived one after another. Professor Zhang introduced them to Wang Jiankun one by one, and also introduced Wang Jiankun to these experts one by one.

Although the participants had heard Professor Zhang talk about Wang Jiankun and knew that he was a freshman, they were surprised at the time. They did not expect that such a freshman would have such in-depth research on the application of the NS equations in fluid mechanics. Now when they heard Professor Zhang say that he was not yet 17 years old, they were all shocked.

"It's incredible. Heroes emerge from youth."

A group of experts sighed and stared at Wang Jiankun as if he had flowers on his body.

"Okay, why are you old guys staring at him like that? He is still young and he feels embarrassed when you stare at him. Come and sit down. We'll start when everyone is here." Professor Zhang looked at the experts who came in and kept staring at Wang Jiankun, and had to speak up to help Wang Jiankun out.

After hearing what Professor Zhang said, everyone felt it would be inconvenient to just stand there, so they started looking for a place to sit down.

"Jiankun, come here. First, tell us about these two papers, and then explain the questions raised by these experts."

After the experts were seated, Professor Zhang asked Wang Jiankun to go to the front blackboard to explain the paper.

He had never explained things like this to professionals before. He was very relaxed when he was instructing his disciples before, because they were all of the same age and they were all familiar with each other. Now, explaining to a group of gray-haired old experts, he couldn't help but feel a little nervous.

"Young man, just tell me about your ideas when you wrote these two papers, and then focus on the few questions we told Lao Zhang before. We will write down the other questions we don't understand and discuss them with you after you finish speaking." An old expert who looked kind saw that Wang Jiankun was nervous and reminded him how to explain.

So Wang Jiankun quickly did as he was told and slowly explained his ideas to the experts.

(End of this chapter)