Lao Hu briefly introduced the members of the research team one by one. Two graduate students, Mo Yougui and Hou Weijin, are both in their second year of graduate school and are the main experimenters for this project. The rest of the undergraduate students are interns with the class.

Lao Hu often determines the technical direction and main experimental methods of the project, and the details are completed and implemented by graduate students and undergraduates. When encountering difficulties, Lao Hu will personally guide the research.

After completing the mutual introduction session, the topic discussion meeting officially began.

First, second-year graduate students Mo Yougui and Hou Weijin introduced the progress, results, difficulties encountered, etc. of their respective parts, and then the miscellaneous group... Oh no, it was the undergraduate group who also shared their experiences and questions during the internship.

Basically, Lao Hu will comment on each person one by one after they finish their speech, affirming the achievements, pointing out shortcomings, and pointing out the direction to solve the difficulties.

He often does not give answers directly. Firstly, many difficult problems require experiments to get the answers. Secondly, he also trains students in this way.

As long as you go in the right direction and are willing to work hard and try more, you will find the answer yourself sooner or later.

It was the first time for both Qin Ke and Ning Qingyun to participate in such a formal project discussion meeting. Usually there are so many procedures for the two of them to do the project. Basically, they can understand each other's meaning with one look. Even if it is a biological breeding project, they can't understand it.

I just regularly read the weekly and monthly reports sent by Wei Xueming’s team and directly answer some difficulties and questions.

Therefore, Lao Hu's way of leading the team gave them a refreshing feeling, and the speeches of each team member also made them feel interesting.

Ning Qingyun listened very carefully and took a small notebook to record some key points.

Qin Ke was much more relaxed. He didn't take notes, but he listened very attentively.

Finally, Lao Hu made a concluding speech: "As you can see, we have two goals in this project. One is to optimize pipeline multi-phase separation technology to achieve oil-water separation in the pipeline transportation process; the second is to design

The technical requirements and production specifications for industrialization can be achieved by relying on physical methods to achieve separation of mixed liquids in a flowing state. For petrochemical companies, if we can overcome this problem, it will greatly promote the effect of energy conservation and emission reduction, and improve the crude oil

Economic benefits of mining.”

“The research direction of our project is to determine the best way to complete the oil, gas,

Technical device for single or multi-phase separation of water and sand.”

"Just now Hou Weijin has explained the oil-water two-phase separation experimental model he recently built through 10 cyclone tubes with a diameter of 50mm, a T-tube with a diameter of 630mm and a composite dehydration tank of 200m^3, and gave the viscosity of

s, the first phase of fifty sets of experimental results for the separation of high-viscosity and extra-heavy oil with a density of /m^3. For the specific experimental model, please see this diagram."

"Based on preliminary judgment from the experimental data, this experimental model is generally OK. For an oil-water mixture containing % water, it can extract % water. The final measured oil content of the sewage is less than 650mg/L, and the impurity content is less than 620mg/L.

However, this effect is not satisfactory.”

"The other model that Mo Yougui just introduced is to establish a pipeline oil, gas and water separation experimental model by integrating gas-liquid T-type separation, oil-water cyclone separation, oil-water T-type separation, horizontal cyclone oil-water separation and S-tube technology.

Certain results have also been achieved, but when the mixed liquid temperature is ℃, the average moisture content is 50%, and the liquid flow rate is 2 to 25m^3/d, the experimental results are not ideal. After separation, the gas phase still carries liquid droplets, and the oil phase

The free water content is at least %, and the oil content in the water phase is higher than the qualified value of 150ppm."

"I can see the efforts you have put in, and you have indeed made a lot of progress, but there is still a long way to go before we can meet the qualification line for our project. We still need to work hard to see how to improve the experimental model.

Achieve better experimental results!”

When Old Hu said this, his eyes fell on Qin Ke and Ning Qingyun, and he said solemnly:

"So, Qin Ke and Ning Qingyun, you two have a heavy burden next. How to establish a mathematical model through these experimental data, and then come up with suggestions for optimizing the physical experimental model, is crucial to the progress of the project. Otherwise, just

Relying on them to explore based on theory and trial and error is too inefficient, and I am afraid it will be difficult to complete this project in one year. The time limit for this project is the end of April, and we only have three months left!"

Ning Qingyun clenched her fists when she heard this, and was about to respond when Qin Ke suddenly took the small book in her hand, turned to the notes on Hou Weijin's explanation, and fell into deep thought.

His behavior made Ning Qingyun, Lao Hu, and other team members stunned. Lao Hu was about to ask, but he saw that Qin Ke had already taken the pen from Ning Qingyun's little hand and started calculating.

Two minutes later, Qin Ke looked up, looked at Hou Weijin, and said with a smile: "Senior Hou, can I ask a question?"

Hou Weijin felt a sense of excitement in his heart, hey, the student god is asking me for advice. He rubbed his nose, tried to calm down his excitement, pretended to be giving advice to his students, smiled and nodded, "No problem, just ask.

"

Qin Ke smiled: "Then let me ask. You just mentioned that when you established the experimental model, did you not take into account the impact of accelerated pressure drop?"

"Yes, because when the two-phase flow rate is low, the acceleration pressure drop is usually negligible." Mo Yougui was stunned before answering.

He was a little surprised. Accelerating pressure drop is something only graduate students can understand. Qin Ke actually knew it?

——He didn’t know that Qin Ke had basically completed all the physics courses that Academician Jiang Weixian asked him to take, including five postgraduate textbooks, and Qin Ke had the "Nonlinear Partial Differential Equations' Navi-S

Although I have only truly understood about 20% of the physics-related content of "Exploration and Detailed Explanation of Tokes' Equation", my attainments in fluid mechanics are no more than those of ordinary Ph.D.s who specialize in this field.

What a difference in life.

Qin Ke shook his head: "But in the first part of your model, 10 cyclone tubes were used. At the 10th cyclone tube, the two-phase flow changed obviously. When I just saw your experimental data, I thought

It has been noticed that as the initial data of the two-phase flow rate slowly increases, the gas phase pressure drop gradient generated in the subsequent pipeline flow cross-sectional area increases in an irregular geometric series. At this time, if the influence of accelerated pressure drop is not taken into account,

It will affect the subsequent separation effect.”

"Look." Qin Ke raised the small book in his hand: "According to (β, I substituted your experimental data, and the final result is enough to confirm my guess. Also in the T-shaped tube, the two-phase flow

The frictional resistance pressure drop is also abnormal. I calculated it using Chisholm's calculation method, and the original data obtained is inconsistent with the experiment. I think it is still caused by the accelerated pressure drop caused by the 10th swirl tube."

"Of course, you need to consider whether to reduce the size of a swirl tube or add a guide plate in the middle to reduce the impact of acceleration pressure drop. I will also analyze all the experimental data here and establish a mathematical model before I can provide

Give proper advice..."

The surrounding area fell silent, and everyone looked at Qin Ke intently.

Hou Weijin's original complacency turned into wonder, admiration and a hint of bitterness.

When he saw Qin Ke's calculation, he knew that Qin Ke was right, but he really ignored this key link.

He admired: "I didn't expect Junior Qin to have such profound attainments in physics. I was really negligent here. I will try to remove the 10th vortex tube, or try changing it to a vertical vortex tube, and then do it again.

Fifty sets of data.”

Professor Hu also looked at Qin Ke in surprise, thinking to himself that it seemed that he had once again made a second assessment of this talented student.

Lao Hu originally invited Qin Ke mainly because of his mathematical modeling ability and good understanding of the theory of fluid mechanics. Now it seems that Qin Ke is not just "quite familiar", it can be said that he is

Very proficient!

The keen observation revealed by just discovering that small detail and the profound knowledge contained in it probably surpassed all the graduate students I have taught!

It's amazing... This old guy Jiang Weixian has really found a treasure. Why can't I, Lao Hu, have such a powerful disciple?

Lao Hu sighed in his heart, reached out and patted Hou Weijin's shoulder, and said with a smile:

"Physics is like this. The establishment of every experimental model must start with calculations from the first step. Tell yourself through numbers why you should do this, why not do it, and whether there is any impact that has been missed. Of course, more important

The most important thing is to test and find problems from numbers. Qin Ke is very good at this. Why does learning physics require a good mathematical foundation? Why do I ask you to spend one-third of your time on mathematical research? I believe that after this,

Everyone understands."

After a brief silence, applause broke out, not only for Professor Hu Qingfeng's guidance, but also for Qin Ke, who discovered this key detail.

At this point, no one dares to underestimate Qin Ke anymore, and no one wants to "point out" Qin Ke anymore.

After the agreed experimental data was encrypted and sent to Qin Ke and Ning Qingyun via email, the topic discussion meeting ended.

In the name of himself and Ning Qingyun being newcomers to the research team, Qin Ke invited the entire research team members to have a good meal at a nearby restaurant. With his eloquence and affinity, he quickly integrated into the research team, and the team

The atmosphere inside was obviously lively.

That night, Qin Ke and Ning Qingyun attended the year-end dinner for all employees of Qing Ning Technology's Beijing office, and then took a flight back to their hometown the next day.

And what awaits them in Yuanzhou is not only the joy of the Spring Festival, but also something unexpected...
Chapter completed!