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Chapter 462: Using mathematics to derive fluid dynamics equations?(1/2)

When Academician Wen Yuanping asked Qin Ke how he did it, everyone present looked at him curiously.

Qin Ke's performance during the day was so "super" that it completely exceeded everyone's imagination. Even though they had been discussing it afterwards, they still could not come up with a reasonable result.

But what is certain is that Qin Ke must have done it after extremely complicated calculations, and he was so tired that he fell asleep directly.

Qin Ke thought for a while and faced everyone's gaze and said: "Actually, this is a coincidence, because my teacher, Academician Jiang Weixian, is also the best at fluid mechanics, and I am also the most interested in this aspect. I used to help Hu Hu in the school

Professor Qingfeng has done two topics on fluid mechanics."

Professor Duan smiled and said: "I heard Lao Hu say this. He was full of praise when he mentioned the mathematical model you helped him build."

"Professor Hu won the award. It was Professor Hu's project that gave me a deeper understanding of fluid mechanics. When I came to Professor Duan's laboratory this time, I was fortunate to review the huge and complex mathematical model of the Institute of Mathematics.

It has benefited me a lot and I have figured out a lot of calculations related to fluid mechanics.”

"Equation?" Academician Wen Yuanping is also a great expert in physics, but his specialization is not fluid mechanics. He was surprised: "You mean, you have derived some new equations through the study of fluid mechanics in physics.

?”

"Yes." Qin Ke has long thought about slowly showing his strength in fluid mechanics, so that in the future he can confidently produce the three S-level knowledge "Nonlinear Partial Differential Equations" Navier-Stokes

"Exploration and Detailed Explanation of the Sri Lankan Equation", the best opportunity is now.

"Do you have a pen and paper?"

"Yes, yes." Qi Zhicong was beside him and quickly took out a small notebook and pen from his backpack.

Qin Ke took it and wrote while talking: "These calculations of mine are basically improved from the existing formulas and the experience in mathematical models. I write them out one by one and then prove them. For example, the following

One is the evolution of the total flow Bernoulli equation, h*/^)^1/2..."

Qin Ke wrote more than thirty pages eloquently, involving the description and proof of nine extremely important turbulence equations.

The general solution to the "Navier-Stokes Equations" involves too many aspects, half of which are mathematics and physics. Now Qin Ke has not fully understood the "Nonlinear Partial Differential Equations" Navier-Stokes

"Exploration and Detailed Explanation of the Max Equation", but I have understood more than 80% of the mathematics part and 60% of the physics part, so I can be considered an expert in this field.

Writing it out now is effortless.

Almost everyone present has done in-depth research in fluid mechanics. The more they look at it, the brighter their eyes become. Especially Professor Duan Yonggong, whose attainments in this area are ranked among the top ten in the country. He tried hard to control the expression on his face.

He looked shocked, but he was applauded more than once in his heart, calling him "a genius in the world"!

These nine turbulence calculations include not only the conservation of momentum and changes in the pressure surface, but also the estimation of flow speed, and even the prediction of water eddies!

Once it is expressed and applied through mathematical modeling, it will have immeasurable far-reaching significance for analyzing the overall stress situation of the dam and improving its structure in the future!

In particular, Qin Ke's calculations are all based on mathematical theories, derived from the original physical fluid mechanics formulas, and are more advanced, accurate and practical.

Although "mathematics is the only language that can describe the universe", and there is a specialized subject "mathematical physics" that uses mathematical language to describe physics, it is absolutely impossible for people like Qin Ke to deduce physical formulas based on the evolution of mathematical theories.

How many mathematicians or physicists can do that!

Professor Duan became more and more carried away and excited as he read. When he saw page 27, he finally couldn't help but praise: "Amazing!"

These nine calculations are very complex. The shortest calculation has more than 60 characters. There are many parameters in them and they are interconnected. To figure out these nine calculations requires a very solid mathematical foundation and physical level. Qin Ke wrote here,

Only Professor Duan and Academician Wen Yuanping could keep up. The rest, including Qi Zhicong, were in a state of confusion.

Ning Qingyun had already heated up the food and came back. When she saw the crowd surrounding Qin Ke, she didn't push past. She just held the lunch box and stared at Qin Ke's focused look outside the crowd. Her eyes were soft and unspeakable.

Worship and like.

What she likes to see the most is Qin Ke like this, with a pen in his hand, but with a kind of confidence and momentum that dominates the world, making people admire and admire him unconsciously.

After Qin Ke finished writing, he sighed with some regret:

"The above nine calculation formulas are what I have experienced these days. I also relied on them to calculate the stress of the dam through mental calculations, so as to judge which flood outlets should be opened and closed. I am ashamed to say that I was not very skilled at the beginning.

It was a little wrong, causing the inclination of the embankment to increase by about 1 degree, otherwise the embankment shape should have been maintained."

The entire audience was silent. Everyone looked at Qin Ke with inexplicable respect, and the admiration in the eyes of Professor Duan and Academician Wen Yuanping could not be concealed.

Professor Duan broke the silence and exclaimed: "Qin Ke, if you continue to be so humble, I'm afraid you will make Xiao Qi and the others feel embarrassed. Just with these nine calculations of yours, you can be a full professor of fluid mechanics in any university."

You are qualified enough. It is the first time in my life that I can use mathematics to deduce physical formulas and reach such a level. It’s amazing, it’s really amazing!”

Academician Wen Yuanping also had a satisfied smile on his face: "Qin Ke, when I see you today, you are even better than your Uncle Yang said. Yes, yes, the door of our Xia Ke Academy is always open for you, no matter what.

Whether it is the Institute of Mathematics or the Institute of Physics, you are welcome to join us. Whenever you want to join us, just give us a call and I can express my position and strive to get you a senior researcher treatment."

This chapter is not over yet, please click on the next page to continue reading! In fact, he also knew that Qin Ke had academician Jiang Weixian as his teacher, and he did not have to worry about top-level topics at all, and he was afraid that he would not like Xia Ke Academy.

Qin Ke hurriedly said: "Thank you Uncle Wen and Professor Duan for your compliments. I just figured out some calculations, which are nothing. In terms of practical experience, there is still a big gap between me and the seniors here. I would like to continue to follow if I have the opportunity."

Let’s learn from all seniors.”

What he said is true. He is indeed at a professional level in theory. With S-level knowledge in hand, his level in fluid mechanics has reached a master level.

But this is all theoretical. When it comes to practice and applying what he has learned, he still has a lot to learn. At least now, if he is asked to design a small breakwater independently, he cannot do it because it involves too much.

disciplines.

Physics is a broad and profound subject. Different from pure theoretical mathematics, physics has a long way to go from theory to compound application. And turning theory into practice cannot be achieved by systematically transmitting knowledge. Qin

Ke must accumulate enough experience one topic at a time and one scientific research project after another before he can truly take charge of his own business and establish and manage his own research laboratory.

Seeing that Qin Ke was not arrogant or impetuous, and did not show off his pride at all, everyone sighed and felt good about him.

Professor Duan saw that Ning Qingyun was still holding the lunch box and knew that Qin Ke had not eaten yet, so he took everyone to leave and said that he would come back tomorrow to entertain Qin Ke to thank him.

Academician Wen Yuanping also gave Qin Ke a few words of encouragement, asking him to guard against arrogance and impetuosity and continue to work hard. He also left a very thought-provoking sentence: "Work hard and strive to have the opportunity to give you a chance before I retire."

ticket."

What chance does Academician Wen Yuanping have to vote for Qin Ke? Naturally, it is the time for academician selection. One of the important responsibilities of the Xia Ke Academy is to select additional academicians for this department. This is a high expectation for Qin Ke!

Everyone was envious and sighed in their hearts, but they also knew that they were jealous. At least after seeing Qin Ke's talent and strength in mathematics and physics, they could only look up to him.

They knew better that although this experimental accident would not be made public due to various reasons, it would definitely spread within the Xia Ke Academy, and Qin Ke's role in turning the tide would also be widely known.

In a few days, when people mention Qin Ke, they will add "fluid mechanics genius" after "mathematical genius".



After Qin Ke finished "dinner", Ning Qingyun wanted to rush to wash the lunch box, but Qin Ke saw that the girl could not hide her tiredness and sleepiness, so he was not willing to let her do these things again, so he pressed her on the bed and "forced" her

She went to bed and ran to the bathroom to clean the lunch box.

It was almost two o'clock in the morning. Of course, it was impossible to go home to rest. The rest room in the infirmary was in good condition. There were two beds and the quilts were new. But of course Qin Ke would not run away.

When he went to sleep on another bed, he turned off the light and got back into bed unceremoniously. Ning Qingyun was not asleep yet, so she shrank to the side in embarrassment.

Apparently being so close to Qin Ke in such a strange and "unsafe" environment made her feel particularly embarrassed, fearing that she would be seen by the doctor who would be making rounds tomorrow morning.

Qin Ke's eyes can see at night, so he can clearly see that Ning Qingyun's pretty face is full of blush. He likes to see the shy look of his little cabbage.

It was obvious that the two of them were extremely close, but Ning Qingyun's underlying shyness had not changed much, which prevented Qin Ke from realizing many of his new ideas.

Qin Ke feels that there is a long way to go, but teasing such a shy girl is also fun. Seeing her blushing and giving in little by little will always give Qin Ke an inexplicable sense of accomplishment.

But at this time, in order to let Ning Qingyun rest peacefully, Qin Ke jumped out of bed, went to lock the door of the lounge, and drew the curtains. Then he kissed Ning Qingyun's little face and said warmly: "Okay.

Sleep peacefully, no one will disturb you, and no stranger will see your sleeping face. Your sleeping face is so cute, only I am qualified to see it, and no one else has the chance."

"Domineering..." Ning Qingyun glared at him shyly, and finally got into his arms obediently and lovingly, closing her eyes.

"Qin Xiaoke..."

The girl's coquettish nasal voice was particularly cute in the darkness.

"Um?"

"I can't sleep in this strange environment. Can you sing a children's song to me?"

Qin Ke wanted to laugh a little. Ning Qingyun rarely had such a childish side, which reminded him of Qin Xiaoke unconsciously.

"Of course it's no problem." Qin Ke hugged Ning Qingyun tightly, smelled the sweet lemon-like body fragrance of his beloved girl, and sang a children's song softly.

After a while, Ning Qingyun fell asleep peacefully, with a sweet and charming smile on her lips.

Qin Ke had slept for so long, so naturally he didn't feel sleepy. At this time, in order not to disturb Ning Qingyun's sleep, he couldn't move even though he was full of warm fragrance.

After thinking about it, I just took out my phone and took a look.

Qin Xiaoke is still the one who sends the most messages on WeChat.

"Brother, there are a lot of papers today, and I feel like I'm going to die. The same goes for Xiao Wen, what kind of laboratory are you and Sister Ning having fun in? I asked Sister Ning to talk, but she didn't reply to me."

"Ugh... You and Sister Ning haven't replied to my messages all day. Are you not giving me tutoring at night?"

"Brother, Sister Ning said that you fell asleep due to exhaustion, and she will give me tutoring tonight. What's wrong with you?"

"Brother, although Sister Ning speaks very well, I always feel that I can understand better if you give me tutoring."

"Brother, brother, are you awake yet?"

The latest message was sent just after midnight.

This little girl stayed up late again.

Qin Ke shook his head and replied: "Your sister Ning and I are very busy today. I just woke up, but your sister Ning fell asleep due to exhaustion."

Qin Xiaoke will take the high school entrance examination in June. Although the little girl wants to take the art student route, Qin Ke has also said hello to Principal Wen of Yingyuan Private High School. No matter how bad Qin Xiaoke's high school entrance examination results are, he can enter Yingyuan High School.
To be continued...
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