Technological Hegemony

After Luo Jia finished speaking her thoughts, the meeting room was full of excitement.

Luo Jia is worthy of being the leader of the tough guy group, his whimsy is sometimes really amazing.

The Karman vortex effect has terrifying power, just like a demon hidden in the wind. In order to avoid being attacked by this demon, high-rise buildings need to conduct wind tunnel experiments, and do everything possible to prevent the Karman vortex effect from happening.

However, Luo Jia's idea is to release the demon hidden in the wind, use the Karmen vortex effect to generate electricity, subdue this demon, and let him serve mankind.

This is really a bold and wonderful idea. Under the action of the Karmen vortex street, the energy generated by the wind force increases geometrically, and even a bridge weighing tens of thousands of tons can be twisted into twists, which shows the terrifying power it contains.

If this power is really released, it will definitely rewrite the energy structure of the entire world.

"Oops, it's a feeling of heartbeat!"

"I have a hunch that if we go on this step, I'm afraid we will change the course of history!"

"I knew it! It's not that simple for Mr. Luo to lead us to engage in wind power."

"Using the Karman vortex effect to generate electricity, why didn't I think of it!"

"I love my job! I want to do my job for the rest of my life!"

Everyone was crazy about Luo Jia's bold decision. For a scientific and technological worker, being able to witness history and change the world is a kind of wonderful luck.

Li Moran was deeply moved. He remembered that morning in summer when he and Luo Jia were riding a motorcycle and wandering along the river.

Luo Jia pointed to several wind turbines on Chongming Island opposite, and said calmly, "In the field of wind power generation, Siemens and Vitas are the absolute rulers, but they will be eliminated in a short time."

Sure enough, time passed day by day, summer was gone, winter was coming, and Luo Jia was finally going to attack Siemens and Vitas.

It's just that this subordinate is really ruthless. If the project is successful, not only the two wind power giants will die, but those mighty energy giants will also be swept into the dustbin of history.

When it comes to the Karmen vortex effect, one has to mention von Karmen, a great man.

The von Karman momentum integral equation,

The von Karman isotropy hypothesis in turbulent flow, von Karman constant, Karman disk analysis, Karman vortex street calculation, transonic similarity law, etc., these are the knowledge that fluid mechanics researchers must have learned.

Moreover, he is Qian Xuesen's teacher, and the two collaborated to create the Carmen-Qian Xuesen formula.

In short, Mr. Carmen is the founder of modern fluid mechanics, a great scientist who must be remembered forever by history.

Luo Jia waved his hands to signal for everyone to be quiet, and then said with a smile, "It seems that everyone has understood what I mean, yes, since the Germans like to play with wind power so much, let them continue to play, we will play with them." It’s different, since we want to play, we need to play with a more powerful one.”

"As we all know, there are two necessary conditions for the formation of the Karman vortex effect."

"First, there must be a certain lift angle to generate a vortex."

"Second, the Reynolds number satisfies certain conditions, so that two adjacent vortices are staggered by a certain ratio, and the center points of the vortices are aligned."

"In the experiment of flow around a cylinder, at about Re = 40, a pair of vortices at the rear of the cylinder began to swing unstable, and at about Re = 70, the vortices alternately fell off the cylinder, and the vortices on both sides rotated in opposite directions. Flowing down, a certain regular, cross-arranged vortex columns are formed behind the cylinder..."

As Luo Jia spoke, he began to list formulas and data on the whiteboard as usual.

He started to get in the mood, leading the brainstorming group to the heart of the matter.

Luo Jia shrugged his shoulders and said, "How to artificially create the Karman vortex effect is only the first step of the problem. The difficulty is control and energy collection."

"Such a huge super physical effect, if the control measures are not in place, it will really cause the effect of ground cracking and landslides. That would be shocking enough, but our purpose is to generate electricity after all, not to cause destruction."

"So the electric field that uses the Karman vortex street effect to generate electricity must first pass the material. My opinion is that the use of carbon fiber materials requires great efforts from our materials science team. After all, in the field of carbon fiber, my country and the world The gap is still relatively large.”

"Here, I have to mention our old rival Neon. The world's three major carbon fiber giants all come from Neon. They are Toray, Teijin Toho, and Mitsubishi Rayon."

Luo Jia curled her lips and said a little depressed, "The combined production of the three Neon companies accounts for more than 50% of the world's total, and Toray's own production capacity accounts for 34% of the world's total. A formidable opponent."

"And the other two companies of Nihong are also very powerful. Toho's parent company is the Teijin Group, and Liyang's parent company is even more powerful. It is Mitsubishi Corporation. In terms of capital and technical reserves, these three companies can beat the whole world. The world's carbon fiber player."

"Besides them, there are six major players in the world, North American Hexel, Zoltek, and Cytec. They are mainly engaged in the production of thick and thin carbon fibers. Regardless of production capacity and technology, they are incomparable with Neon."

"In addition, Germany has SGL, Gulf Province has Formosa Plastics, and Turkey has Aqsa. These three are also major players in the world."

"Why should I talk about the three neon companies separately from the other six?"

"Because our opponents are actually only the three neon companies, and the other six companies are already half dead even if we don't make a move from Xingchen Technology. The ability to manufacture T100 to T800 models, from primary to mid-level products."

"It is especially important to point out that Turkey's Aksa is very bluffing at first. How can even a country like Turkey produce carbon fiber? It seems that this thing is not very technical."

"But in fact, Aqsa is the vest factory of the North American chemical giant Dow, and all the technology comes from North America."

"It can be seen that in the field of carbon fiber, it is absolutely high-tech, and there is absolutely no such thing as a weak country. Except for us, the only ones that can make carbon fiber are Neon, North America, and Germany."

"To what extent has my country's carbon fiber development reached?"

"The carbon fiber solar panels used in the Shenzhou 11 spacecraft are made by Beihua, which shows that the quality of domestic products is not bad."

"But it is a pity that, as a company in the forefront of international competition, we understand a truth better than laymen. Laboratory results and small-batch production are not king bombs. The key to real mass production is the right price/performance ratio. "

"What we want to do is large-scale power generation, so we need cheap and easy-to-use carbon fiber. This goal should be a bit difficult. What do you think of Lao Ji?"

When Ji Ming heard Luo Jia pointing his name, he had to smile wryly and said, "What can I think? At the beginning you said you wanted to make batteries, but in the end you even put aluminum-plastic film, winding machine, these messy things together. .”

"Now you say you want to engage in wind power, I know it's not that simple, can resist the high-strength carbon fiber material of the Karman vortex effect, and it's cheap? This is really too difficult. To tell you the truth, I am scalp They're all numb."

Xiaoxiao made a joke, and the conversation suddenly changed. Ji Ming's eyes were shining with confidence and determination, and he said in a deep voice: "But please rest assured, although our material department is not as good as Toray, we still have a few hard bones. of!"

"I'm still talking here today. No matter how difficult the material department is, I will never hold you back! Leave the carbon fiber materials for fans to us!"

There was warm applause in the conference room, and everyone was deeply encouraged by Ji Ming's statement. The company's top material scientist perfectly demonstrated to everyone what a tough guy spirit is.

And this kind of spirit is undoubtedly contagious. As long as you enter the door of Xingchen Technology, you will suffer from this problem of not admitting defeat and not compromising sooner or later.

Luo Jia nodded, "Yes, at this stage of the company, the research and development of any technology is not simple, and requires a lot of top-notch wisdom and astronomical research and development investment."

"That's why we must become a giant, because if we are not a giant-level enterprise, we simply cannot afford such an expensive game."

"Ji Ming's material department will be responsible for carbon fiber, but we need to know that after carbon fiber is produced, two important chemical preparations are needed, carbon fiber glue and sizing agent. Indispensable for carbon fiber styling."

"Ten years ago, the domestic sizing agent could be described as horrible, but with the technological progress of domestic manufacturers, it has basically reached the international first-class level."

"Just use carbon fiber to make fans, withstand the impact of the Karman vortex street, and I'm not sure whether domestic adhesives and sizing agents can be used. This aspect requires a lot of testing by the chemical department. If it doesn't work, we may have to develop it ourselves."

"Brother Dongning, your chemistry department needs to work harder on this aspect. Cooperate with the material department to finalize the main material."

Zhang Dongning didn't have the same sense of humor as Ji Ming. This always honest man from northern Jiangsu stood up, nodded vigorously twice, then sat back in his seat, and looked at each other with Ji Ming.

Luo Jia scratched his head. The two teams of Zhang Dongning and Ji Ming could only solve the problem of the main material of the fan, and there were still tasks for the electromechanical part, which needed to be arranged.

He began to draw pictures on the whiteboard, one was a traditional three-blade fan, and the other was a new bladeless fan based on the principle of Karman vortex street that he imagined.

It seems that the wind turbine envisioned by Luo Jia is a bit like a torch. Countless torch-like tall wind turbines are inserted into the sea to form a powerful vortex matrix. Violent vibrations and energy will be generated in this large matrix.

Because it is offshore power generation, away from the land and people, such a power plant avoids the impact on the land base.

Luo Jia was also afraid that the power of this thing would be too great, if something like a small earthquake happened, it would not end well.

Luo Jia was drawing everyone's picture of the wind farm he envisioned. At this moment, An Ran frowned suddenly, as if thinking of something. His action happened to be seen by Luo Jia.

"An Ran, what do you want to say?" Luo Jia asked him.

"I suddenly thought of a very serious problem." An Ran frowned and said, "Using the Karman vortex street principle to generate electricity requires not only a wind tunnel, but also advanced hydrodynamic calculations. If something like this highly commercial secret is It may not be safe to calculate on foreign fluid mechanics software.”

After An Ran finished speaking, the scene was suddenly stunned, and everyone showed embarrassed expressions.

The development of wind turbines based on the Karman vortex street principle will inevitably require massive calculations. Currently, industrial software capable of simulating computational fluid dynamics is basically controlled by overseas companies.

It is easy to buy software, but if those precious data are leaked, it will be terrible. Scientific research data is the lifeblood of scientists, and they will not be easily seen by others.

Luo Jia put down the ink pen in his hand, turned around and said with a smile: "Do you know why I announced my decision to enter the fan field at this time, not too early or too late?"

After finishing speaking, Luo Jia nodded to Li Moran, "Did you forget that in addition to the hardware army, the company also has a software army. When you are researching capacitors and electronic controls, they are not asleep."

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