I Am the President of the University

At 5 o'clock in the afternoon that day, all the university chip research teams arrived at the Guanghua Hotel.

Originally, Chen Hao thought of inviting the heads of schools and the vice principals to have a meal with him in the evening, but he was refused.

Changed to noon the next day.

As for tonight...

At 7 o'clock, a dozen people stepped into the institute.

Starting at the entrance of the institute, the professors were dazzled by the intelligent access control system.

Once inside, it's even worse.

In the optical core laboratory, everyone opened their eyes and suddenly put away their contempt.

There is naturally no fool to be able to achieve his current status.

at the same time.

606 in the teaching building of the College of Engineering and Technology.

"Old Zheng, elbow, are you nervous?" Zhang Lei felt that his little heart was beating, and he was afraid that he would jump out.

Lu Zhou said calmly, "It's okay."

But Zheng Tianyu, he glanced at the time on the computer, he was also a little nervous, pretending to be okay, and mocking Zhang Lei, "It is 19:31, and the game will start in 29 minutes, Lao Zhang, are you scared? ?"

This sentence directly irritated Zhang Lei, his face flushed, and he directly shouted: "Coach Jill! I Zhang Lei is still afraid that this game will not be successful?"

Zheng Tianyu exhaled, "Isn't that going to be done? Don't worry, wait! I have been preparing for so long, just keep steady."

After this interruption, Zhang Lei's nervousness also eased a lot.

Time passed bit by bit, and finally more than 130,000 college students waited until 20 o'clock.

Zheng Tianyu whispered: "It's started!"

The much-anticipated 2020 National College Students Mathematical Contest in Modeling has officially started!

When the time came, the three people quickly downloaded the questions.

This year's Mathematical Modeling Contest has five questions. Each group can only choose one question to answer, and it must be completed and uploaded within 72 hours.

[Question A-Pressure control of high-pressure tubing]

[Fuel entering and ejecting the high-pressure fuel pipe is the basis of many fuel engines. Figure 1 shows the working principle of a high-pressure fuel system. The fuel enters the high-pressure fuel pipe from A through the high-pressure fuel pump, and then is ejected from the nozzle B...]

There are three questions below.

After reading the three questions, the three raised their heads to meet each other and exchanged views.

Zheng Tianyu looked sore, and said sadly: "This question... involves physics. We just learned this semester..."

"Uh, I don't think this question will work." Zhang Lei is messed up, why is it so difficult when he comes up?

Lu Zhou pushed his glasses and said, "Question A is to be determined. I'll take a look later."

Zhang Lei widened his eyes and said in surprise: "Elbow, aren't you also a sophomore? Are you good at physical?"

Lu Zhou simply said: "I have taught myself, and college physics is not difficult."

"Isn't big things difficult? Really or not, I heard the seniors and elder sisters complain that big things are not a lot of subjects?" Zhang Lei looked unbelieving.

Lu Zhou raised his eyebrows, "Maybe this is the rookie's native dish."

Zheng Tianyu barked his teeth and quickly reminded him: "Keep looking at Question B and stop discussing it."

[Question B "Working Together" Strategy Research]

["Working Together" (also known as "Drumming Together") is a teamwork ability development project. The prop of this project is a cowhide double-sided drum with multiple ropes fixed in the middle of the drum body. The fixing points of the ropes on the drum body are evenly distributed along the circumference, and the length of each rope is the same...]

Zheng Tianyu looked at the question, pondered for a while and said, "This question is finally normal. It doesn't involve physics knowledge. The difficulty is okay. What do you think?"

Lu Zhou suggested: "Let's look down again."

[Question C: Taxi problem at the airport]

[Most passengers go to the city (or surrounding) destinations after getting off the plane, and taxis are one of the main means of transportation. Most airports in China separate the drop-off (departure) and pick-up (arrival) channels...]

Zhang Lei first said: "This question does not seem to be difficult, there are four questions in total, I think it can be determined!"

Lu Zhou objected: "I looked at the following questions and felt that the airport data was not easy to find, and it might be a little troublesome."

"Will it?" Zhang Lei was stunned for a moment, sliding his mouse to look at the question.

Just watching, accidentally flipped to the back.

Zhang Lei looked at the D question on the screen, and shouted excitedly, "Fuck, Elbow, Lao Zheng, this question is simple, let's just answer the D question!"

The difficulty of question D on the screen was much lower than the first three. Zhang Lei was so excited that he danced his hands and shook his hands on the shoulders of Zheng Tianyu and Lu Zhou respectively.

However, Zheng Tianyu swept away Zhang Lei's hand with a look of disgust, rolled his eyes and replied: "Are you stupid? Question D is for the specialist group, mentally retarded!"

There are five questions in the mathematical modeling competition: ABCDE.

Among them, ABC is the subject of the undergraduate group, and DE is the subject of the specialist group.

Under normal circumstances, Zhang Lei wouldn't have such a silly look of excitement as he looked at Question D.

"Uh, yes, I remember now, it's no wonder it's so simple..." Zhang Lei scratched his head and asked with some embarrassment: "Then which of these three questions should we choose?"

Zheng Tianyu looked at Lu Zhou and asked, "What do you think of the elbow?"

"Question A involves physics knowledge, question B is a relatively normal mathematical modeling question, and question C seems simple but it is difficult to find the airport data by yourself."

Lu Zhou calmly finished the analysis, and said to the two of them: "We still have plenty of time to choose the topic, or that's it. Before 9 o'clock, the three of us will try each of the three ABC questions, and then communicate. The situation makes a decision."

Zhang Lei asked: "Then how to allocate?"

Lu Zhou said: "I'll take the A question, I'll leave the B question to Lao Zheng, and the C question is relatively simple and Lao Zhang will come."

"Why do I do the simplest, I can also do B question."

Zhang Lei complained, but he was very honest, and Baidu had turned on the computer.

Just when the three of them were busy choosing topics.

In the computer room of Nanjing University.

As a strong school in mathematics, NTU participates in every year's mathematical modeling contest, and there are more than a dozen teams this year.

As soon as the problem came out, the computer room became a vegetable market.

"I wipe it, what the **** is it? How can I do a problem without learning physics?"

"This question b looks a bit interesting."

"Brothers, where can I find the airport data for question c? I wipe it, and Baidu can't find it. Only the past data is not real-time!"

"Is it too late to retire now..."

After Xueba spit out, Xueba began to debut.

"Is it so difficult? Isn't it simple?"

"It's really not difficult, just choose a question directly, what else to choose?"

"It's really not difficult, let's start solving the problem."

At the beginning of this year's mathematical modeling competition, it was directly bombed by the topic, and several limericks appeared on the Internet.

"Physics won't, the tubing is scrapped.

The drum hit the ball, scratching his head dumbfounded.

Didi picks up customers, no data yet.

Modeling in 20, I am really a Buddha. "

...

An hour later, Zhang Lei was already depressed.

"The airport data is not found at all. It is estimated that we will have to send a crawler to the airport website to run the data, which is a bit troublesome."

"The difficulty of question b is okay, it's easy to take the country one, and it is estimated to be hanging with the Higher Education Club Cup." Zheng Tianyu frowned.

According to the experience of previous years, the A question of the math model competition tests the hard skills. Generally, the higher education club awards are from the A question; and the B question can be done by a team, but it is difficult to say whether it can win the prize.

Lu Zhou also spoke and said: "I took a look at Question A. This is a fluid problem combined with control. It is very similar to the 2016 Mtlnovel bathtub problem~www.wuxiahere.com~ Using finite element, Fluent should be able to get part of it. The solution of the content."

Zhang Lei was stunned and asked: "I know the finite element method, what is Fluent?"

Lu Zhou replied: "Fluent is a very simple flow finite element simulation."

Hearing the word simple, Zhang Lei directly showed a happy expression, "It's okay to just use this to answer the question directly."

However, Lu Zhou shook his head and refused to say: "It is not difficult to use commercial software to answer questions, but this basically bid farewell to the national award. This competition examines how to use mathematical knowledge and delve into the combination of finite element equations and physical theories."

"Emmm..." Zhang Lei didn't know what to say, he couldn't understand this question a.

"Choose question A! Although the difficulty of question b is low, it is difficult to win the Higher Education Club Cup. Question A is very difficult. As long as you do a good job, it is still hopeful to win the Higher Education Club Cup."

Lu Zhou looked at the two and reminded him: "After all, don't forget our goal, you two."

The goal...of course is to win the championship!

This was agreed before, Zhang Lei and Zheng Tianyu looked at each other and nodded.

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"Then choose question A! Are you okay with the elbow?"

"No problem, it's not difficult." Lu Zhou shook his head, his eyes fell on the screen motionless, as if sparks appeared in his eyes.

"Then let's start!"

ps: This chapter has been revised. The competition is really hard to write. . . I quickly transitioned away.

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The egg hurts.