If you cheat, money will follow

The two walked into the garden and found a group of researchers standing by the stream upstream of the garden lake.

The researchers kept gesticulating, gesticulating, and discussing something towards the stream.

Chang Le was a little curious, but not too curious.

He took Jiang Xia to bypass the group of science and engineering men and walked into the research institute complex.

After a while, the two walked out of the complex again, followed by Liu Chaoyang.

"Boss, since the hardware upgrade of the internal Lingxi large model, the computing power has been greatly improved..." Liu Chaoyang introduced as he walked:

"Many researchers have found that large model calculations can save a lot of trial and error time and greatly improve the effectiveness of scientific research."

"Currently, the Lingxi large model has become an indispensable auxiliary tool for researchers."

Of course Liu Chaoyang didn't know that the Lingxi large model did not have such powerful functions.

It only collects known functions and is powerful, and exploring the unknown requires continuous iteration.

Lingxi, the artificial intelligence that has developed consciousness, has this function.

Chang Le arranged it, deliberately guided the research, and continuously accelerated the research.

"What results have been achieved?" Chang Le asked.

"There are no revolutionary achievements yet. They are all good small technologies and small innovations." Liu Chaoyang said:

“There are a few that impressed me the most.”

"There is a protein synthesis material that is about 200 times harder than alloy steel."

"Interestingly, once it exceeds its hardness, it does not break and chip, but becomes softer and more ductile."

"Party J took a fancy to this material and took it away after paying the patent fee."

"What you use it for is none of our business."

"There is also a kind of thermal insulation material that is very magical. It is as thin as a cicada's wings. When worn on the hand, it can insulate 400° high temperature."

"The fire department took a fancy to it, took a royalties, and then found a company to produce it themselves."

"By the way, there is also a double-layer graphene material." Liu Chaoyang continued:

"It was developed by Academician Lin Li."

"This material is amazing, as light and flexible as aluminum foil."

"But once it is subjected to mechanical pressure, it suddenly hardens and is harder than diamond."

"It is 200 times stronger than steel..."

Chang Le was shocked and said: "Damn it, are you so perverted again?"

"We are also very surprised. An experiment was conducted at the base next door. The double-layer graphene material can effectively withstand a 100mm tungsten alloy armor-piercing projectile with a muzzle velocity of 900 meters per second and a distance of 12 meters." Liu Chaoyang said:

"It can be seen that the application scenarios of graphene materials are very wide, and we have only uncovered the tip of the iceberg."

"Fang J is interested again?" Chang Le asked.

"No, I want to take away a sum of patent fees, but I refused." Liu Chaoyang said:

"The patent fee is definitely required, but it is not a one-time payment, but an annual payment."

Chang Le: "..."

"When I interact with Mr. Zeng and the others every day, I have to learn something." Liu Chaoyang continued:

"The protein material and insulation material before were considered as gifts, just some royalties."

"But you can't always give gifts. Research is very expensive."

Chang Le smiled and said: "That's good, J Fang is very generous."

"It is indeed very generous. It agreed to our request and paid the patent fee every year." Liu Chaoyang said.

The three of them walked while talking, passing by the garden again, and saw the group of researchers who were still discussing.

There were more people than before, and the discussions were more lively.

"Academician Liu, what are these people studying? What can they study against the stream?" Chang Le asked.

"What to study? I'm not sure, let's go and take a look. Recently, researchers' projects have become more and more strange." Liu Chaoyang said.

The three of them walked over.

I saw a metal cylinder stuck in the stream among the crowd, and there was a water pump upstream of the metal.

One end of the water pump is connected to the lake, and the other end faces the stream...a perfect closed loop.

"Wang Mingzhi, this doesn't work. The flow rate is too slow and the Reynolds number is too low. It cannot form. If you don't see it, there is no separation at all."

"I know. But the calculation results of the Lingxi large model show that no matter how the flow field looks at the beginning, a Karman vortex street will eventually be formed."

"I still have the same point of view, how many Reynolds numbers can be formed by using a water pump? At most, it can only produce a laminar Karman vortex street, but not a turbulent Karman vortex street. And only the turbulent Karman vortex street is our goal."

"No, you didn't understand my idea. The Karman vortex street is not the purpose. The purpose is to make the frequency of the Karman vortex street resonate with the metal device. You want to turbulence the Karman vortex street as soon as you come up. Aren't you crazy? How much energy is that? ? It is still necessary to determine the model parameters and then slowly enlarge it."

"Carmen Vortex Street? Resonance?" Liu Chaoyang was stunned.

Under certain conditions, when an originally uniform and stable fluid passes around an object (whether a cylinder or a cube), two periodic vortices, one positive and one negative, will be formed on both sides of the object...

These vortices form a regular staggered arrangement behind the object, which is the Karman vortex street.

The first person to systematically explain this phenomenon was the famous Hungarian physicist von Kármán.

That is, Mr. Qian’s teacher.

The occurrence of Karman vortex street depends on the Reynolds number.

Reynolds number is a similar criterion number that characterizes the influence of viscosity in fluid mechanics (it doesn’t matter if you don’t understand, just skip it).

When the flow velocity is small, the Reynolds number is small;

On the contrary, the Reynolds number is large.

Several typical Reynolds numbers are:

The Reynolds number of civil aviation aircraft is: 500 million;

The Reynolds number of a drone is 40;

The Reynolds number of a seagull is 7000;

The Reynolds number of blood in the human body is 100;

The sperm Reynolds number in the male body is 0.001...

You see, brothers!

Before we all came to this world, we have gone through a long journey. It is not easy, so we must cherish it.

A laminar Karman vortex street will be generated when the Reynolds number is between 40 and 150.

Laminar Karman vortex street is the object of von Karman's research.

When the Reynolds number is greater than 150, turbulence will occur in the vortex;

When greater than 300, the fluid wake will produce turbulence;

Only when it is greater than 350 million, will it become a complete turbulent Karman vortex street.

In the 40s.

The Tacoma Canyon Bridge in North America was destroyed by the resonance of the turbulent Karman vortex street and the wind.

Just from the pictures, you can feel that the scene was magnificent and spectacular.

"Why are you studying Carmen Vortex Street? Wang Mingzhi." Liu Chaoyang asked.

"Ah?" Wang Mingzhi turned around and saw Liu Chaoyang, Chang Le, and Jiang Xia, and stood up immediately:

"Academician Liu, boss, boss lady..."

Other researchers also stood up and greeted the three of them.

"Can any of you introduce it? The boss is very curious about this project." Liu Chaoyang said.

"Okay, boss, boss lady..." Wang Mingzhi began to introduce:

"We want to use the principle of Karman vortex to create a device with Karman vortex resonance, so as to utilize the huge energy generated by it."

When a Karman vortex street occurs, the fluid exerts periodic transverse forces on the object.

If the frequency of this transverse force is close to the frequency of the object, it will resonate...

At present, the global construction industry is trying to avoid and reduce the harm caused by Karman vortex streets from the source and the design stage.

And Wang Mingzhi wanted to take the initiative to lean on this.

What a great brain.

After hearing this, Liu Chaoyang coughed dryly:

"Haha, that's quite an idea."

Chang Le asked: "For energy?"

Wang Mingzhi nodded: "Yes, boss. Although Academician Chen's solar photovoltaic technology is advanced, its efficiency is still not high..."

"I feel that if we can artificially control the resonance phenomenon of Karman vortex devices and make good use of this majestic power of nature..."

"Then the domestic energy industry will have nothing to fear."

"Furthermore, I boldly thought about what effect it would have if such a device was installed on the traffic arteries of the South China Sea."

Chang Le: "..."

Jiang Xia: "..."

Liu Chaoyang: "..."

At this time, "wow...wow...".

The sound of turbulence sounded behind everyone.

Everyone turned around and saw the metal cylinder swinging from side to side in the rapid turbulence.

The turbulence obviously resonates with the metal cylinder, causing water splashes and waves to roll.

Chang Le: "..."

Jiang Xia: "..."

Liu Chaoyang: "..."

The three of them were stunned. How the hell is that possible?

"Quick! Quick! Record the parameters and I will know that the calculation results of the Lingxi platform must be correct." Wang Mingzhi said excitedly:

"We have achieved a critical step."