Chapter 156 We studied it for several months, but they solved it in two days
Peng Hui yelled at Cui Xunnian to criticize and educate him, "An organization like yours should also give you money!"
"I'm a good mathematics professor, and my research is so good. Is it okay to ask someone to help me without paying me?"
"We also gave two hundred thousand last time!"
Peng Hui didn't mind saying more, since Cui Xunnian didn't know anything about it anyway, "People have done data analysis, but it took ten days, half a month, right?"
"The most important thing is not time, but ability."
"Think about it, a research project like yours is not as expensive as the alloy project. If you delay it for several months, you may not be able to produce results."
"If you want to find someone with the ability to help, you should be sincere in giving money, right?"
"You are the kind of person who has stayed in the unit for too long and doesn't understand the situation outside at all!"
Cui Xunnian would have been anxious if Peng Hui said such a thing about other things, but now he listened patiently and felt that what Peng Hui said made sense.
Nowadays, to find a labor force outside, you have to pay hundreds of dollars a day, and to find a top mathematician to help with research, which consumes a lot of brainpower and time, and it is simply unjustifiable not to pay.
He had never thought about money before.
The main reason is that this problem is very difficult. Several aerodynamics experts from the institute have been studying the equations, but without any results.
Wang Hao, okay?
This is the problem.
Cui Xunnian had a question mark in his mind. He came to Wang Hao mainly because he saw that Wang Hao had conducted world-class research on approximate solutions to NS equations and had other top achievements in the field of partial differential equations.
However, when faced with a system of partial differential equations and a complex system of equations with NS equations, how can it be so easy to obtain a more approximate solution?
What the experts at the institute do is to constantly plug in numbers to do calculations, and then judge the ungrouping situations one by one based on analysis.
Screen out some solutions that look good and design experiments to test the effects.
Later it was proved that they did not meet the requirements.
Cui Xunnian is one of the researchers in the team, but he is not the main person in charge of the project. He can be called the 'deputy director' at most. He is only responsible for this part of the content.
The research got stuck here, which made him feel very anxious.
Of course, the responsibility is not entirely his, because the difficulty of the research lies here. Many people in the team are studying this point, but they have not been able to make a breakthrough.
After putting down the phone, Cui Xunnian thought about what Peng Hui said and felt that he should come up with funds.
However, giving money is not easy.
This is not his own project, and he is not the main person in charge. He can only put forward his own ideas and suggestions.
But what if you spend money but don’t get results?
Then you need to bear the pressure.
He thought hesitantly and found Wang Hao's resume. After reading it for a while, he suddenly became much more determined.
Wang Hao’s resume is really dazzling.
In the past year or so, he has completed a lot of research, and two of them were published in top mathematics journals just in the direction of partial differential equations.
He is also an expert in data analysis. He participated in Peng Hui's alloy project and was invited to give a lecture at the Institute of Aeronautical Materials. The research content received great attention.
Not to mention research on number theory.
His latest research on mathematical methods is considered a Fields-level achievement and is also anticipated by the international mathematics community.
"Top mathematician!"
Cui Xunnian gave a brief summary. The experience in front of him made him feel incredible.
Suddenly a voice came from outside, "Director Cui, the meeting is about to begin!"
Cui Xunnian quickly stood up and walked to the conference room. He walked to the door and thought for a while, then came back to get Wang Hao's resume.
The person presiding over the meeting was Yang Yuan, the general manager of the project.
Cui Xunnian entered the conference room and sat on the right side of Yang Yuan. Others also came in and sat in their seats.
Yang Yuan said, "Let's make a summary. The progress has been slow during this period, mainly due to the problem of wind resistance calculation."
He looked at the person on the right and said, "Zhang Binghe, please talk about the wind resistance experiment first."
Zhang Binghe picked up the document in his hand and said, "We have conducted seven wind resistance experiments since three months ago. The highest evaluation value in the experimental test is 23.6, which was in the fourth experiment."
"Our goal is to reduce the evaluation value of the wind resistance test to below 20. For the time being, we can say that there is no progress and the difference is still far away."
"The seventh experiment last week proved that the data from the fourth experiment cannot be adjusted anymore..."
He said and shook his head.
The wind resistance test of the experimental design, that is, the aircraft model resists wind pressure. The direct purpose is to reduce the air resistance. The smaller the air resistance, the same power can bring greater acceleration, which will make the aircraft more flexible.
.
When flying at low altitude, the aircraft has more power and faster acceleration, and can also greatly improve the safety factor and flexibility, which can be said to be related to all aspects of performance.
Unfortunately, their research has not made any progress.
The most important thing is that the wind resistance cannot be accurately calculated, even more precise calculations cannot be done. Many experiments rely on the solution obtained by replacing numerical values. It can be said that they rely on experience and luck.
Yang Yuan nodded after thinking. He asked Cui Xunnian and said, "I heard that you found some outside experts a while ago. Did you get any results?"
Cui Xunnian shook his head, "They all said it was too difficult to solve."
This answer is disappointing.
He hesitated and continued, "However, I found a new expert, Professor Wang Hao from Xihai University."
"Wang Hao?"
Others immediately started talking, "I've heard of this person. He just won the Chen Shengshen Mathematics Prize, right?"
"It is said that he is a super genius and a future Fields winner."
"what's the result?"
Cui Xunnian did not answer, but said, "I am thinking about a question. Should we allocate part of the funds to find outside experts to help solve this problem."
He said a lot more seriously, "The main direction of what we are good at is aerodynamics. When it comes to the analysis of fluid mechanics problems, we can only use the original methods, or simply experience, and rarely can we do special research on our own.
method."
"This kind of pioneering research still needs to be done by mathematicians who specialize in partial differential equations."
"This is also an important reason why we cannot solve this problem."
Everyone else nodded as they listened.
No matter how confident they are in their major, they still know that there is a level gap in solving theoretical problems between themselves and mathematicians who specialize in partial differential equations.
Most of what they do is application, rather than studying the underlying logic.
Cui Xunnian said, "That's why I went outside to find other experts for help. I think Wang Hao is very talented and he has the ability to help us solve this problem."
His tone was very certain.
"But the question is, why should he help us? Is it because we are a military research institute?"
"So I think we should allocate some funds to support it instead of just asking others to help."
Cui Xunnian spoke in an orderly manner, which made everyone in the conference room fall into deep thought. He took advantage of the time and handed Wang Hao's resume information to Yang Yuan.
Yang Yuan took a closer look and was surprised by Wang Hao's genius. Then he looked at the others, "What do you think?"
Someone said, "Let's see if it's feasible or not? How much funding will it cost?"
Zhang Binghe also asked, "We can't research it, so we can only find others. But, is it possible to find Wang Hao? Is it possible that even if we give funds, there will be no results? After all, we have been researching for several months.
, no matter how talented he is alone..."
He shook his head as he spoke, his meaning already obvious.
Yang Yuan was silent for a moment, then asked Cui Xunnian thoughtfully, "What do you think is the appropriate fee?"
Cui Xunnian said, "I have a friend named Peng Hui who asked Wang Hao to do analysis on his alloy project for 200,000 yuan."
"..."
"..."
Everyone in the conference room was silent.
Yang Yuan was surprised when he heard this number. They were not doing a project but just solving a system of equations.
Although there is nothing the entire institute can do about this set of equations, 200,000 at a time still feels like too much.
Finally, Yang Yuan gritted his teeth and made a decision, "200,000 is 200,000. Let's see the effect of these 200,000, which is just the cost of two experiments!"
"But……"
Zhang Binghe still felt that it was too much, but he did not say anything else afterward.
There was nothing he could do about the problem.
…
Xihai University, Complex Building Office.
Wang Hao is doing research patiently. For the system of equations given by Cui Xunnian, he has already obtained six sets of approximate solutions. He is just striving for excellence, hoping to further approximate each set of solutions.
This process is like approaching a number, such as the number 5. The first approximate value is 4.9, the next step is 4.93, and the next step is 4.94...
Getting closer bit by bit, theoretically we will never get to 5, but we are always getting closer.
Now he has transformed two sets of approximate solutions twice, and it becomes increasingly difficult from now on.
But Wang Hao still wants to transform again.
Since he has agreed to solve this problem, he will definitely strive to do his best. Just as he was studying seriously, a voice suddenly came from the door, "Professor Wang Hao, are you there?"
"exist!"
Wang Hao raised his head and shouted.
Everyone in the office noticed it immediately, and saw Liu Jian, director of the Finance Department, walking towards Wang Hao with a big belly.
Zhang Zhiqiang pulled the stool next to him and briefly entertained him.
"Thanks."
Liu Jian did not sit down, but put his hand on the table and directly explained the purpose of his visit, "Professor Wang, I am here to tell you that a sum of money has been transferred to the school account, two hundred thousand, designated as labor fees for you.
.”
"Who called?" Wang Hao asked in confusion.
Liu Jian came over and whispered, "It seems that the message says 'Aerodynamics Institute'? I checked and found that there is no such institute at all. The information is very vague. I don't know what's going on, so I'm here to ask you."
Wang Hao thought for a moment and then reacted, "I understand, just call me directly."
"There is no problem with this transfer, right?" Liu Jian asked with certainty, because the transfer information was very vague and he was worried about what problems might be involved.
Wang Hao nodded and said, "The other party came to see me. It was about a small project. It should be the labor fee paid to me. Dean Luan also knows about it."
"That's good!"
When Wang Hao said this, Liu Jian felt relieved.
After Liu Jian left, Zhang Zhiqiang asked curiously, "What did you do? Do you have 200,000 in labor fees?"
"Solve a system of equations." Wang Hao simply explained.
"Solve a system of equations? Two hundred thousand?" Zhang Zhiqiang opened his mouth exaggeratedly, "Wang Hao, if there is such a good thing in the future, please introduce it to me. I am also good at mathematics and can help!"
Wang Hao looked at Zhang Zhiqiang, nodded and said, "Okay, I will introduce it to you next time I have a chance."
"Really? You have to remember!" Zhang Zhiqiang felt something was wrong, but the temptation of two hundred thousand was too great.
Luo Dayong came over. He found a mirror from somewhere and placed it in front of Zhang Zhiqiang's eyes.
Zhang Zhiqiang looked in the mirror and asked strangely, "What are you doing?"
Luo Dayong gave the mirror to Zhang Zhiqiang, then sat back in his seat and said, "Take a good look at yourself, man, it's important to see yourself clearly."
"..."
Zhang Zhiqiang took a deep breath, placed his left hand on his right hand, and controlled the fist with veins popping out.
Zhu Ping at the door suddenly shouted, "Zhang Zhiqiang, what are you doing with my mirror! Give it back to me! You are a grown man, why are you looking in the mirror?"
"...No, no, Zhu Ping, it's not me, it's Luo Dayong!" He held the mirror in his hand and couldn't argue for a while.
Zhu Ping took back the mirror with anger.
Zhang Zhiqiang sat down with depression, thought about it carefully, and suddenly felt something was wrong.
He looked at Zhu Ping, then at Luo Dayong, and thought to himself, "There's something wrong. Why does Luo Dayong seem to be... only targeting me?"
"Zhu Ping hasn't scolded Luo Dayong for a long time..."
"Something's wrong, it's not normal!"
…
Wang Hao received 200,000 yuan in labor fees and felt a little embarrassed because he was only doing research on the side.
Get money and do things.
He is more motivated to work.
He spent a day to further transform the two sets of approximate solutions and came up with two more accurate approximate solutions. After thinking about it, he sent it to Cui Xunnian.
Attached message: These are the two sets of approximate solutions I just got, and there are four more sets of solutions that will be sent to you in a few days.
Cui Xunnian has been doing relevant research, but there is almost no progress to be made. Thinking about Wang Hao's situation again, he even feels a little anxious.
200,000 is still a lot of money, almost the cost of two experiments.
Even though Yang Yuan made the decision to pay such a labor fee, he still felt a lot of pressure.
If Wang Hao can't come to a conclusion, the two hundred thousand dollars will be wasted, and there's no telling when Wang Hao will be able to come to a conclusion.
He walked around the office thinking about it and glanced at the computer screen to find a new email.
Cui Xunnian opened it and was surprised to find two sets of data.
When he saw Wang Hao's message, he wished he had not received the data, because according to his idea, even doing research could not be done so quickly.
If after half a month, a conclusion is sent, or simply a report is sent, which is naturally the best situation.
At least it can prove that the other party has done research very seriously, and even if the numerical value still fails to pass, he can explain it to the project team.
It's impossible to find someone, but at least I tried hard.
Now that the results were obtained quickly, but there was no relevant report, he didn't know what to do for a while.
Cui Xunnian gritted his teeth and went to Yang Yuan's office.
In the office.
Yang Yuan asked, "Do you believe these two sets of data?"
Cui Xunnian gritted his teeth and nodded, "I believe Wang Hao."
Yang Yuan thought silently. He had the same idea as Cui Xunnian. He also felt that the data came too fast, and without relevant reports, there was no way to know how the data was obtained.
Their experimental tests usually first demonstrate the data. After the data is verified, they can decide to conduct experiments based on the data. Because each experiment consumes more than 100,000 yuan in funding, it is not a simple decision.
If there are no relevant reports, I don’t know what to do.
Finally, Yang Yuan thought about it and simply made a call. He called the academic affairs department of Xihai University directly and asked the academic affairs committee to tell Wang Hao to call back.
After Wang Hao got the news, he called back. When he heard Yang Yuan talking about numerical issues and the report, he hesitated and said, "Do you still want to report this research?"
He explained, "I didn't keep records because I was also doing research. If you want to report, you have to wait a month."
"Furthermore, I think you may not be able to understand the report in a short time."
He said it very hesitantly because it sounded a bit shocking.
Yang Yuan was silent after hearing this.
He understood two pieces of information. One was that the report would take a month, and the other party seemed unwilling to write a report specifically for this job, but only did some analysis and research in passing.
The second is that the content of the report will be very complicated and they may not be able to understand it.
Yang Yuan was silent.
Cui Xunnian also fell silent.
After putting down the phone, the two looked at each other. For the first time, they clearly felt that their intelligence and ability were being despised, but what the other party said was very straightforward and seemed to come from the heart. Because of this, it was even more impressive.
depressed.
"What should we do now? Do we have to wait a month?" Cui Xunnian said after being silent for a long time.
Yang Yuan was a little dumbfounded. He didn't know whether Wang Hao was too confident or whether his judgment was wrong. Finally, he simply said, "Since he is so confident, let's experiment!"
"An experiment only consumes some funds. I can still shoulder this responsibility."
Yang Yuan is the person in charge of the project, and no one can change what he decides.
soon.
A meeting was held within the team.
Even though others were puzzled, they all started preparing for the experiment.
The experiment cannot be carried out directly. The team needs to analyze the new numerical solution to calculate other data, and then use the obtained data to transform the aircraft model.
The next step is to prepare for the wind pressure test. It takes one day to prepare for the experiment, which adds up to three days.
Three days later.
Everything is ready.
The professional team responsible for the experiment turned on the huge high-pressure fan, and a violent buzzing sound came from the operation room. The aircraft model was fixed in place to withstand the wind pressure, and a series of data were also obtained.
The experiment lasted half an hour before stopping.
Data extraction completed.
At this time, the team began to work together to calculate, and finally summarized the data for analysis.
At seven o'clock in the evening, the experimental work was completed.
A group of people gathered in the conference room again. Zhang Binghe got all the data and was doing the final calculations.
Everyone looked at him and waited.
finally.
Zhang Binghe completed the calculation. He looked at the values on the paper with shock written all over his face.
"How much?" Yang Yuan asked.
Others also looked over.
Zhang Binghe took a deep breath and simply said a number, "18.7."
"18.7,18.7? How is this possible?"
He was really surprised.
In the past few months of research, they continued to analyze and conducted seven experiments. The best data was only 23.6, and it was difficult to increase it by 0.1.
Now...18.7?
This is definitely a very shocking number!
The others were also shocked when they heard this.
Zhang Binghe quickly asked, "General Manager Yang, where did you get the data? Who analyzed it?"
"Wang Hao." Yang Yuan said his name.
"Wang Hao?"
"Is this the Wang Hao I mentioned a few days ago?" Zhang Binghe was stunned.
Others were also surprised, "This 200,000 yuan is worth it. One experiment, it is directly 18.7."
"We have been researching for several months, and they solved it in two days?"
"This is so amazing!"
"..."
(It’s a new month. I’m so cute and asking for a guaranteed monthly ticket!!!)