Technology: breaking the hegemony that monopolizes the world

To be precise, a wind tunnel is a wind tunnel laboratory, which uses artificial control to generate and control airflow, and is used to simulate the flow of air around aircraft such as airplanes, drones, spaceships or entities such as cars, so wind tunnels are conducted One of the most commonly used and effective tools for aerodynamic experiments.

The Wright brothers built wind tunnels to conduct various experiments on their aircraft before they successfully performed the world's first powered flight.

Up to now, the wind tunnel is the most widely used tool in aerodynamic research and testing, and directly serves the development of various aircraft.

In the last century, Uncle Sam's B-52 bomber had conducted about 10,000 hours of wind tunnel experiments.

Forty years ago, when the first space shuttle was being developed, it even went through 100,000 hours of wind tunnel tests.

Wind tunnels are generally classified according to the range of flow velocities: low-velocity wind tunnels, where the air density in the airflow hardly changes.

In a subsonic wind tunnel, the density of the airflow has changed in the flow, and the approximate range is 0.3

Then there are transonic wind tunnels, supersonic wind tunnels, and hypersonic wind tunnels with M≥5.

In these years, the laboratory institutions, equipment and experimental buildings invested by Kyushu Science and Technology are more than one wind tunnel?

But for Gu Qing to come here in person, it can be seen that its importance is definitely not low.

Zheng Gong's name is Zheng Gong, but he is indeed the chief engineer in charge of this project.

At the age of forty-nine, but unshaven like a middle-aged man in his fifties or sixties.

Wearing a straw hat, the middle-aged man watched the young CEO finish his speech, then strongly invited himself to say a few words, and waved his hands quickly.

"No, no, no, everyone's time is precious, don't let me waste everyone's time."

Although the attitude of resignation was very real, the middle-aged man was still pushed forward by the students and other colleagues behind him.

After a few steps, I came to the front of the podium.

"You are the father of this project, and I'm just the one who pays. If you don't say a few words, we will all feel that this beautiful sun today is almost nothing."

With a smile on the corner of Gu Qing's mouth, he sincerely handed the microphone to the middle-aged man with several shades of tan on his arms and neck.

What is success?

Zheng Gong himself thought that he was successful when he was admitted to a good university. When he got to university, he thought that he was successful if he could get a Ph.D.

After a work-study program, he finally got his Ph. D., but the extravagant feasts, villas, and luxury cars that he comes into contact with in his daily work seem to tell him that this is success.

But how can it be possible to make so much money by engaging in technology in the unit?

A wrong decision, trusting the wrong people, ended up in jail.

When he was released from prison, he found that things were wrong and people were different. His enemy was already in a foreign country, and he was a rich man who wasted money freely. However, because no one took care of his relatives, several stubbles of weeds had grown on their graves.

In the end, it was an invitation letter from Kyushu Technology, which prevented him from continuing to be so muddled.

After receiving the microphone, seeing everyone's earnest gazes, Zheng Gong suddenly became a little timid.

At this moment, the young CEO behind him said softly: "Come on, you should express what you think, instead of keeping everything in your stomach."

Stomach stuffy?

At this time, the sun was shining, and the man who had been covered in shadows finally raised his head after taking the microphone and putting his head down for a while.

Perhaps it was because the face under the straw hat was rarely exposed to the sun, so Zheng Gong's facial skin did not even have a ruddy blood color, which formed a bright contrast with the black and red color of his neck. .

"Hollowing out a whole mountain can be for mining or building tunnels, but when I saw the wind tunnel when I was in college, I dreamed of whether one day I could hollow out a mountain and build the best tunnel in the world." wind tunnel.

This way, let me look back now.

The wind tunnel behind me seems to be the epitome of half my life.

I don't know whether to thank it, or myself, or everyone, the company, and Mr. Gu. "

Having said this, Zheng Gong suddenly bowed to everyone.

The range of motion is large, making his back look like an old farmer planting rice seedlings in the field, solid and vicissitudes.

And while bowing, the engineer's shoulders were shaking, and crystal tears fell on the ground, and crystal tears fell out one after another.

After the bow, everyone saw that the engineer who had worked in the top unit in the wind tunnel field was already in tears.

But his voice grew stronger.

"The total number of wind tunnels in the world has already exceeded a thousand, but the number is more than the quality.

The largest low-speed wind tunnel is the Guo Jia full-scale equipment wind tunnel at Ames Center of Aeronautics and Space Administration of Americo.

Daxia Aerodynamics Development and Research Center located in our Xishu Mountain area is equipped with the largest group of wind tunnels in Asia and Europe, including 52 low-speed wind tunnels and sub-, trans-, supersonic and hypersonic wind tunnels, as well as 8 world-class wind tunnels. hole equipment.

And we spent three years under the mountains, and finally built the world's most intelligent top-level wind tunnel with the most sophisticated sensors!

An intelligent computing system with a peak computing speed of 50 trillion times per second, complete with three means of wind tunnel test, numerical calculation and model flight test, capable of performing tests from low speed to 40 times the speed of sound, from underwater, on the ground to 100 kilometers in the air , covering aerodynamic tests in the fields of aerodynamics, aerothermal, aerophysics, aerooptics, etc.

To be honest, when I close my eyes now, I can see dense data and piles of drawings.

As people get older, they tend to get sentimental easily.

If my mentor is still alive, when he sees this wind tunnel, he should be able to understand that I was wronged at that time! ! !

It's just a pity that we all missed it.

well. "

After sighing, Zheng Gong said with emotion: "Students, colleagues, and friends, if you have an idea of ​​what to do, as long as the direction is not wrong, go ahead and do it boldly and meticulously.

What I regret most in most of my life is that I didn't stand up at that time, and I didn't stand up bravely.

But today, this wind tunnel has finally succeeded. My idea was correct. The materials at that time were not good enough to support such a huge wind tunnel building. It was even necessary to find a stable mountain in a non-seismic zone. More research is also needed.

Thank you for your company, thank you all. "

Zheng Gong's speech was not as expressive as those actors', but the tone and emotion were more moving.

Moreover, the veteran employees of the wind tunnel project all know that the three years mentioned by the veteran engineer are ten years of perseverance for him personally.

When he first inspected the area, the old engineer was more familiar with the mountain roads than the local villagers.