Chapter 164: Although our material department is not as good as Toray, there are still a few hard bones!
After Luo Jia finished saying her thoughts, there was excitement in the conference room.
Luo Jia is worthy of being the leader of the tough guy group, and his whimsy is sometimes really breathtaking.
The Carmen Vortex Street Effect has a terrifying power, like a demon hidden in the wind, and in order to avoid being attacked by this demon, high-rise buildings need to conduct wind tunnel experiments and try everything to prevent the Carmen Vortex Street Effect from happening.
However, Luo Jia's idea is to unleash the demon hidden in the wind, use the Carmen vortex street effect to generate electricity, subdue this demon, and make him serve humanity.
This is really a bold and brilliant idea, the wind under the action of the Carmen vortex street, the energy generated by the geometric multiplier, even the tens of thousands of tons of the bridge can be twisted into twists, which shows the terrifying power it contains.
If this power is really unleashed, it will definitely rewrite the energy landscape of the entire world.
"Oh no, it's a heart-warming feeling!"
"I have a hunch that if we continue this step, I'm afraid we will change the course of history!"
"I knew it! Mr. Luo took us to engage in wind power, which is not so simple. ”
"Using the Kármán vortex effect to generate electricity, I didn't think of it!"
"I love my job to death! I'm going to do it for the rest of my life! ”
Everyone is crazy about Luo Jia's bold decision, and for a scientific and technological worker, it is a wonderful luck to be able to witness history and change the world.
Li Moran was full of emotion in his heart, he remembered that early morning in summer, he and Luo Jia were riding a motorcycle along the riverside.
Luo Jia pointed to several wind turbines on Chongming Island opposite, and said lightly, "In the field of wind power generation, Siemens and Vitas are absolute rulers, but it won't be long before they are killed." ”
Sure enough, time passed day by day, summer was gone, winter was coming, and Luo Jia was finally about to start attacking Siemens and Vitas.
It's just that this subordinate is really ruthless, if the project can be successful, it will not only be the two wind power giants that will die, but also those unbeatable energy giants will also be swept into the garbage heap of history.
When it comes to the Carmen vortex street effect, we have to mention von. Carmen is a cow man.
The von Kármán integral equation of momentum, the von Kármán isotropy hypothesis in turbulence, von Kármán's constant, Kármán disc analysis, Kármán vortex street calculation, transonic similarity law, etc., are all knowledge that fluid mechanics researchers must have learned.
And he was Qian Xuesen's teacher, and the two worked together to create the Carmen-Qian Xuesen formula.
In short, Mr. Carmen is the founder of modern fluid mechanics, a great scientist who will surely be remembered forever by history.
Luo Jia waved his hand, signaled 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 wind power so much, let them continue to play, we are different from them, since we want to play, we have to play a more powerful game." ”
"As we all know, there are two necessary conditions for the formation of the Karmen vortex street effect."
"First, there must be a certain angle of rise to create a vortex."
"Second, the Reynolds number satisfies certain conditions, so that the two adjacent vortices are staggered by a certain ratio, and the center points of the vortices are aligned."
"In the cylindrical flow experiment, at about Re = 40, a pair of vortices at the back of the cylinder began to oscillate unsteadily, and from Re = 70, the vortices alternately fell off the cylinder, and the vortices on both sides rotated in opposite directions, going down with the current, forming a certain regular, cross-arranged vortex column behind the cylinder..."
Luo Jia said as she began to list formulas and data on the whiteboard as usual.
He's starting to get into the groove, leading the brainstorming team to the heart of the matter.
Luo Jia shrugged his shoulders and said, "How to artificially create the Kármán vortex effect is only the first step in the problem, and the difficult thing is control and energy harvesting. ”
"Such a huge super physical effect, if the control measures are not in place, and the effect of earth cracking and landslides is really created, then it is shocking enough, but after all, our goal is to generate electricity, not to destroy."
"Therefore, the use of the Kármán vortex effect power generation of the electric field, first of all, the material must pass, my opinion is that the use of carbon fiber materials, this aspect requires our materials science team to make great efforts, after all, in the field of carbon fiber, China and the international gap is still relatively large."
"Here, I have to mention our old rival Neon again, the world's three major carbon fiber giants, all from Neon, they are Toray, Teijin Toho, and Mitsubishi Rayon."
Luo Jia pursed her lips and said a little depressed, "The combined output of the three neon companies accounts for more than 50% of the world, and its own production capacity of Dongdongli accounts for 34% of the world, which is an extremely terrible opponent." ”
"And the other two neon are also very powerful, Toho's parent company is Teijin Group, and Liyang's parent company is even more bullish, it is Mitsubishi Corporation, in terms of capital and technical reserves, these three can beat the world's carbon fiber players."
"And in addition to them, there are six major players in the world, Hexell, Zoltech, and Cytec in North America, they are mainly made of thick and thin carbon fiber, and there is no way to compare with Neon in terms of production capacity and technology."
"In addition, SGL in Germany, Formosa Plastics in Wanwan Province, and Al-Aqsa in Turkey, these three are also major players in the world."
"Why should I separate the three neon families from the other six?"
"Because our opponents are actually only neon three, and the other six even if we Xingchen Technology does not shoot, they are already half dead, the reason is very simple, China's developed country crusher, is investing frantically in the field of carbon fiber, and currently has the ability to manufacture T100 to T800 models, from primary to intermediate products."
"In particular, it should be pointed out that Al-Aqsa, Turkey, sounds very bluffing at first glance, how can even a country like Turkey make carbon fiber? It doesn't seem to be very technical. ”
"But in fact, Al-Aqsa is the vest factory of the North American chemical giant Dow, and everything in technology comes from North America."
"It can be seen that in the field of carbon fiber, it belongs to the absolute high-end, and there is absolutely nothing weak in the country, except for us, which can make carbon fiber, that is, neon, North America, and Germany."
"To what extent has China's carbon fiber developed at present?"
"The carbon fiber solar panels used in the Shenzhou 11 spacecraft are made in Beihua, which shows that the quality of domestic goods is not bad."
"But it's a pity that we, as an enterprise on the front line of international competition, understand a truth better than laymen, laboratory results and small batch production are not the king of bombing, and the most important thing is to really produce in large quantities, and the right cost performance is the key."
"We want to engage in 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?"
When Ji Ming heard Luo Jia call his name, he had to smile bitterly and said, "What can I think?" At the beginning, you said that you wanted to make batteries, but even the aluminum-plastic film, the winding machine, these messy things were all together. ”
"Now you say you want to engage in wind power, I know that it is not so simple as soon as I hear it, a high-strength carbon fiber material that can resist the Kármán vortex effect, and it must be cheap? It's so hard, and I'll tell you the truth, my scalp is numb right now. ”
Xiaoxiao made a joke, and the conversation suddenly changed, Ji Ming's eyes flashed with confidence and resoluteness, and he said in a deep voice: "But please rest assured, although our material department is not as good as Toray, there are still a few hard bones!" ”
"I'm still here today, no matter how difficult the materials department is, I will never hold you back! Leave the carbon fiber material for the wind turbine to us! ”
There was warm applause in the conference room, and everyone was deeply encouraged by Ji Ming's statement, the company's first expert in materials science, and perfectly demonstrated to everyone what is the spirit of a tough guy.
And this spirit is undoubtedly contagious, as long as you enter the door of Xingchen Technology, sooner or later you will get this kind of failure to admit defeat and not compromise.
Luo Jia nodded, "Yes, at this stage of the company, the research and development of no science and technology is simple, and it requires a lot of top wisdom and astronomical R&D investment. ”
"That's why we have to be giants, because if we weren't a giant-level company, we wouldn't be able to afford to play such an expensive game."
"Ji Ming's material department will be responsible for carbon fiber, but we must know that after the carbon fiber is produced, two important chemical agents are needed, carbon fiber viscose and sizing agent, viscose needs to be responsible for bonding carbon fiber layer by layer, and sizing agent is indispensable for carbon fiber shaping."
"Ten years ago, the domestic sizing agent could be described as miserable, but with the technological progress of domestic manufacturers, it has basically achieved the international first-class level."
"Just use carbon fiber to make fans, withstand the impact of Kármán vortex street, whether domestic viscose and sizing agent can be used, I am not sure, this aspect needs to be done by the chemical department to do a lot of testing, if it is really not possible, maybe we have to develop it ourselves."
"Brother Dongning, you need to work hard in this aspect of the Chemistry Department, cooperate with the Materials Department to finalize the main material."
Zhang Dongning didn't have the same humor as Ji Ming, this man from northern Jiangsu, who had always been honest, stood up, nodded his head twice, and then sat back in his place and glanced at each other with Ji Ming.
Luo Jia scratched his head, Zhang Dongning and Ji Ming's two groups of people can only solve the problem of the main material of the fan, and there are tasks of the mechanical and electrical part below, which need to be arranged.
He began to draw drawings on the whiteboard, one of which was a traditional three-bladed fan, and the other was a new bladeless fan based on the principle of Carmen vortex that he had envisioned.
It seems that this kind of wind turbine envisioned by Luo Jia is a bit like a torch, and countless tall wind turbines like torches are inserted into the sea, forming an amazingly powerful vortex matrix, and violent vibrations and energy will be generated in this large matrix.
Since it is an offshore power plant, it is far away from land and people, so such a power plant avoids the impact on land-based.
Luo Jia is also afraid that this thing is too powerful, and if it really causes something like a small earthquake, it will not end well.
Luo Jia was painting everyone what he imagined the wind farm to look like, at this time, An Ran suddenly frowned, as if he remembered something, and his action happened to be seen by Luo Jia.
"Enron, what do you want to say?" Luo Jia asked him.
"I suddenly remembered a very serious problem." An Ran frowned and said, "Using the Kármán vortex principle to generate electricity, in addition to the need for a wind tunnel, also requires advanced fluid mechanics calculations, such a highly confidential thing, if it is calculated on foreign fluid mechanics software, I am afraid it is not very safe." ”
After An Ran said this, the scene was stunned, and everyone showed embarrassed expressions.
The development of wind turbines based on the Kármán vortex principle requires massive calculations, and the current industrial software that can simulate computational fluid dynamics is basically controlled by foreign companies.
It's easy to buy software, but if those valuable data leaks out, it's bad, and scientific research data is the lifeblood of scientists, and it is easy not to be seen.
Luo Jia put down the fountain pen in his hand, turned around and said with a smile: "Do you know why I didn't announce my decision to enter the fan field at this time?" ”
After speaking, Luo Jia nodded to Li Moran, "Have you forgotten that in addition to the hardware corps, the company also has a software corps, and when you were studying capacitors and electronic control, they weren't sleeping." ”
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