Turbulence problems can generally be studied using the standard K-Σ model derived from the Reynolds time-averaged equation, but Qin Ke has obtained several more effective and clearly described mathematical model ideas through the S-level knowledge in his mind. At this time, he

He blended them together as much as possible and wrote:

"Combining the Euker method and the Lagrange method, a new model is introduced, which the author calls the 'ELEX' model. It can solve the problem that when different phases are processed into interpenetrating continuous media, the volume occupied by one phase cannot be occupied by other phases.

Possession problems, and describing the behavior of discrete particles..."

"The model establishment of 'ELEX' is based on mathematical methods, as follows:..."

"The verification of the simulation results of the 'ELEX' model can be carried out through the FLUENT software on the computer. The watershed is divided into continuous non-overlapping structural grids, and the number is set to three levels for verification..."

The sun was slowly setting in the west, and Qin Ke, armed with an S-level knowledge weapon, was in full swing. In one afternoon, he completed the expression of the control nonlinear partial differential equations, the establishment of a new model, and the export of simulation data.

"Shiguang, help me compare the original experimental data and simulated data." Qin Ke stretched out and handed over the subsequent boring data processing to the artificial intelligence Shiguang.

Under the tutelage of Qin Ke, Ning Qingyun, and Qin Xiaoke, LV2's Shimmer has become a barely qualified experimental assistant. At least it is capable of doing data comparison work that requires a lot of energy, and

It is much more efficient than Qin Ke opening the software to compare by himself.

Ten minutes later, Qin Ke had just finished practicing Wing Chun when a faint light showed that the data comparison had been completed.

Qin Ke went over to take a look and was quite satisfied. The matching rate reached an astonishing %, far exceeding the industry average of %.

The model provided in S-level knowledge is already very complete, and Qin Ke has made creative integration, which has improved the accuracy of the ELEX model at different granularities.

“This detail needs to be further optimized.”

Qin Ke spent another hour repeatedly modifying and improving the ELEX model, raising the matching degree to %. This is basically the limit. If he wants to optimize it again, the time cost is too high. Even if he wants to increase it by 0.5%, he is afraid that

It took Qin Ke more than a month to supplement the treatment methods under various specific conditions, which was really unnecessary.

With this model, we can then adjust the parameters to simulate the experimental results under different parameters. From the best simulation data, we can deduce how to improve the mud-water separation efficiency of the radial flow secondary sedimentation tank, and how to improve the efficiency of the radial flow secondary sedimentation tank while the processing load is constant.

Even with the improvement, it can still ensure that the effluent quality meets the standard and the stable operation of the biological treatment system can prevent the occurrence of sludge denitrification problems.

This part is a team effort that takes a lot of time and effort.

According to Professor Hu's division of labor, Qin Ke is only responsible for building the model and obtaining the best simulation experimental data, and Professor Hu's scientific research team will solve the problem later.

"It's done. Professor Hu's task is easier than imagined. According to this progress, it can be completed in three days."

For Qin Ke, the most important thing is that with the ELEX model and these comparison results, he can write a paper on computational fluid dynamics. The core is his new model for dealing with turbulent flow in a low-speed closed environment.

The scientific research progressed very smoothly. Qin Ke was in a very good mood. After seeing that it was almost time, he left the study room and went to the gate of Qingmu University to wait for Ning Qingyun.

According to WeChat messages, Ning Qingyun and her roommates were already on their way back by taxi...

When Ning Qingyun, Gu Yanfei, Ximen Hui, and Ren Jianan got out of the taxi parked in front of the school gate, they saw Qin Ke leaning on the lamppost with a smile. The key was that Qin Ke still had a bunch of night lights wrapped in his hand.

Flowers, in the warm yellow dusk, are romantic and beautiful.

I don't know how many girls passed by and gave Qin Ke their attention.

"Wow! Qingyun, your boyfriend is so romantic!" The three roommates booed in envy. Ning Qingyun's face turned red with embarrassment, but her heart felt sweet.

Qin Ke stepped forward, presented the flowers with a smile, and took the shopping bag from the girl's hand.

Ning Qingyun asked in a low voice: "You...why are you here?"

"I miss you so much. I wish I could see you just a second earlier."

Ning Qingyun's face turned even redder, even her pink neck was stained crimson, but her eyes were filled with attachment, and she held Qin Ke's hand tightly.

Qin Ke smiled inwardly, life still has to have surprises and a sense of ritual. When you have a girlfriend worth cherishing for a lifetime, you can't ignore these small details.

Which girl doesn't like romance and surprises? Ning Qingyun, who is obsessed with studying, is no exception. This little surprise has a remarkable effect.

Gu Yanfei shouted: "Squad leader, can you please stop abusing us singles like this? It's so sour that we have no appetite for dinner. But if you invite us to dinner, we can reluctantly agree for Qingjun's sake."

Qin Ke smiled and turned to the three girls with envious faces: "You three have occupied my Qingyun house for so long, and I still want to charge you for it. I won't treat you to dinner. At most, I will invite you to my dormitory next time.

Three of my animals are here to join you. Goodbye."

After that, Qin took Ning Qingyun's soft little hand, walked into the campus with countless envious eyes, and disappeared into the night.

"Why are you so nice to me all of a sudden?" Ning Qingyun's soft voice was full of cute attachment, her little face was pressed against Qin Ke's arm, how could she still be aloof in front of others?

This is a side that only comes out when you are alone with Qin Ke.

Qin Ke smiled: "When will I treat you badly?"

He looked at the shopping bag in his hand and guessed that it probably contained his birthday gift?"

Even when Ning Qingyun is away from home, she will always miss him in her heart. This can be seen from the fact that her WeChat messages always regularly report where she is and what she is doing.

Qin Ke was unwilling to restrict her schedule, but she was willing to share her life with Qin Ke to make him feel at ease.

This chapter is not over yet, please click on the next page to continue reading! Thinking of these details and thinking that there will be a period of separation, Qin Ke's heart is full of reluctance.

Including the round trip time, I'm afraid I won't be able to see Ning Qingyun for more than ten days during this trip abroad.

This is the first time the two have been separated for such a long time since they officially got together.

Ning Qingyun seemed to feel his reluctance. She looked at Qin Ke with confused eyes, bit her pink lips, and said softly: "I will catch up with you soon, and I will follow you wherever you go from now on." I can follow."

Qin Ke stretched out his hand to rub her silky hair and said softly: "I believe you and will wait for you. Don't be anxious. College life is precious. Enjoy it."

Ning Qingyun obediently enjoyed his doting movements, feeling the tenderness between her boyfriend's fingers. Suddenly her heart warmed up, and she leaned close to his ear and whispered like a mosquito: "I...I bought a swimsuit... I'll change it to you later to see if it suits you..."

Seeing Qin Ke's eyes sparkling, the girl with a red face became inexplicably panicked. She lowered her head shyly: "How about... or maybe next time."

"It's better to choose a different day than to hit the sun. It's windy outside and it seems like it's going to snow. Let's go back quickly. There is heating in 'Little House No. 2'." Qin Ke pulled the girl and ran back with excitement.

It seems that there will be a bright scene of spring flowers blooming ahead.

…

Qin Ke handed over his responsibility to Professor Hu three days later. Professor Hu still couldn't believe it: "Is this done?"

Is this too fast? Normally, even if he asks a professor from the Department of Mathematical Sciences to assist, it would take about two weeks. After all, it takes time to analyze the data and build the model, not to mention the subsequent data comparison and optimization. untie

Asked for confirmation.

It only took Qin Ke four days! Even Professor Hu, who had a high opinion of Qin Ke, found it unbelievable.

He immediately went to his laboratory and organized people to verify Qin Ke's simulation results. Half a day later, exciting news came back from the laboratory. The experimental results were surprisingly consistent with the simulation data provided by Qin Ke! The comparison results were amazing. The matching rate exceeds 99.1%!

After hearing the news, Professor Hu couldn't sit still. He quickly instructed the team to reversely deduce the plan to improve the secondary sedimentation tank based on Qin Ke's optimal solution simulation results, and then directly called Academician Jiang Weixian. The first sentence Just sighing: "I really envy you, Academician Jiang, you have accepted a disciple with unlimited potential... I don't know, but the graduate students in my laboratory admire Qin Ke so much..."

Jiang Wei listened first and just laughed and cursed: "Okay, okay, don't think about attacking my student. Besides, he has helped you such a big favor, so you won't show any sign of it at all, right?"

"Hey, with a teacher like you here to protect his shortcomings, how dare I let him work in vain? The one hundred thousand project fund will be used as a reward for him. This is already the reward for a full professor. I, Lao Hu, am doing things righteously, right?"

It was indeed quite good for an undergraduate to be paid according to the standard of a full professor. Only then was Jiang Weixian satisfied: "How much time and energy has he saved you? You've made money this time!"

After hanging up the phone, Jiang Weixian looked at the phone, shook his head and said with a smile: "This restless boy...but it seems that I really have a successor."

Qin Ke quickly received the check handed over by Professor Hu in person, which made him pleasantly surprised. He did not expect to have such a large amount of income.

"By the way, Professor Hu, I would like to use your experimental data to write a paper on a mathematical model. Is that okay?"

Professor Hu said cheerfully: "Of course it is possible. My scientific research project will only use your simulation results and will not involve the details of the model. However, it is best to submit the manuscript in the middle of next month, and then my project will be completed."

"

The two parties had a pleasant discussion, and Professor Hu said he would ask Qin Ke for help if he had similar problems in the future before saying goodbye.

For Qin Ke, the first fluid mechanics paper required by the system was finally completed.

Qin Ke couldn't write the second and third papers until he found the second topic.

Most of the system's tasks had no time limit, so he was not in a hurry and continued to enjoy the good time with Ning Qingyun, and returned his mind to the Polignac conjecture project that Ning Qingyun worked on together.

At the same time, with the white snow covering the sky and the earth, his nineteenth birthday arrived as scheduled on Christmas Eve.

There is less than a week left before departure for Princeton University.
Chapter completed!