To be precise, a wind tunnel is a wind tunnel laboratory. It uses artificial control to generate and control airflow to simulate the flow of gas around aircraft, drones, spaceships and other aircraft or entities such as cars. Therefore, the wind tunnel is a One of the most commonly used and effective tools for aerodynamic experiments.
Before they successfully made the world's first powered flight, the Wright brothers built a wind tunnel to conduct various experiments for their aircraft.
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 underwent about 10,000 hours of wind tunnel experiments.
Forty years ago, when the first space shuttle was being developed, it underwent 100,000 hours of wind tunnel testing.
Wind tunnels are generally classified according to the range of flow speeds: In low-speed wind tunnels, the air density in the airflow hardly changes.
In subsonic wind tunnels, the density of airflow has changed during the flow, with a rough range of 0.3
Then there are transonic wind tunnels, supersonic wind tunnels, and hypersonic wind tunnels with M≥5.
Over the years, the laboratory institutions, equipment and experimental buildings invested by Jiuzhou Technology are more than just a wind tunnel?
But being able to have Gu Qing come in person shows that its importance is definitely not low.
Gong Zheng’s name is Gong Zheng, but he is indeed the chief engineer in charge of this project.
At the age of forty-nine, he looks as unshaven as a middle-aged man in his fifties or sixties.
The middle-aged man wore a straw hat and watched the young president finish his speech. Then he strongly invited himself to say a few words and waved quickly.
"No, no, no, everyone's time is precious, don't let me waste everyone's time."
Although his refusal was genuine, the middle-aged man was still pushed forward by the students and other colleagues behind him.
In a few steps, I reached the front of the podium.
"You are the father of this project. I only have the money to pay for it. If you don't say a few words, we will all feel that today's beautiful sun is nothing."
With a smile on his face, Gu Qing handed the microphone to the middle-aged man whose arms and neck were tanned several shades with sincerity.
What is success?
Zheng Gong himself thought that he was successful if he got admitted to a good university. When he got to university, he thought he was successful if he could get a doctorate.
He finally managed to get a doctorate through a work-study program, but the feasting, villas, and luxury cars he was exposed to in his daily work seemed to tell him that this was success.
But how can you make so much money if you work on technology in your company?
A wrong decision, trusting the wrong person, ended up in jail.
When he was released from prison, he found that things had changed, his enemy was already in a foreign country, and he was spending money freely when he was a rich man, but his relatives had no one to take care of them, and the grass grew on their graves.
In the end, it was an invitation letter from Jiuzhou Technology that stopped him from continuing to be so confused.
After taking the phone and looking at everyone's eager eyes, Zheng Gong suddenly felt a little timid.
At this moment, the young CEO behind him said softly: "Come on, you should express what you think instead of keeping things in your stomach."
Feeling stuck in your stomach?
At this time, the sun shone down, and the man who was once covered in shadows finally raised his head after taking the phone and his head falling for a moment.
Perhaps because the face under the straw hat was rarely exposed to the sun, Zheng Gong's facial skin did not even have a rosy color, which formed a bright contrast with the black and red color of his erect neck. .
“Hollowing out an entire mountain can be used to mine minerals or build tunnels. But since I saw the wind tunnel in college, I have dreamed of whether one day I could hollow out a mountain and build the best tunnel in the world. Wind tunnel.
Along the way, now I look back.
The wind tunnel behind me seems to be a microcosm of half my life.
I don’t know whether to thank it, thank myself, or thank everyone, the company, and Mr. Gu. "
Having said this, Zheng Gong suddenly bowed to everyone.
The range of movement was very large, making his back look like an old farmer planting rice in the field, solid yet looking so vicissitudes of life.
And while bowing, the engineer's shoulders were shaking, and crystal tears fell on the ground.
After the bow, everyone saw that the engineer, who had worked in the top unit in the wind tunnel field, had tears streaming down his face.
But his voice became stronger.
“The total number of wind tunnels in the world has already exceeded a thousand, but the number is more in quantity than in quality.
The largest low-speed wind tunnel is the Guojia full-scale equipment wind tunnel at the Aerospace Administration Ames Center in Amerric. The experimental section size is 24.4×36.6 meters2, which can allow a complete aircraft to enter.
The Daxia Aerodynamics Development and Research Center located in our Xishu Mountains is equipped with the largest wind tunnel group in Asia and Europe, including 52 low-speed wind tunnels and sub-, trans-, super- and hypersonic wind tunnels. It also has 8 world-class wind tunnels. hole equipment.
And we spent three years under these rolling mountains and finally built the most intelligent and top-level wind tunnel with the most sophisticated sensors in the world today!
An intelligent computing system with a peak computing speed of 50 trillion times per second, equipped with three major methods: wind tunnel testing, numerical calculation and model flight testing, it can perform operations from low speed to 40 times the speed of sound, from underwater, on the ground to an altitude of 100 kilometers. , covering aerodynamic tests in the fields of aerodynamics, aerodynamic heat, aerodynamic physics, aerodynamic optics and other fields.
To be honest, as soon as I close my eyes now, I can see dense data and piles of drawings.
As people get older, they become sentimental easily.
If my mentor is still alive, when he sees this wind tunnel, he should be able to understand that I was wrongly accused at that time! ! !
It's just a pity that we all missed it.
well. "
After sighing, Gong Zheng said with emotion: "Students, colleagues, and friends, if you have an idea of what you want to do, as long as the direction is correct, just do it boldly and carefully.
What I regret most in my life is that I didn’t stand up and stand up bravely.
Today, this wind tunnel was finally successful. My assumption was right. The materials at that time were simply not up to standard and could not support such a huge wind tunnel building. We even had to find a stable mountain in a non-seismic zone. In the Western Shu region, More investigation is also needed.
Thank you all for your company, thank you all. "
Zheng Gong's speech was not as expressive as those of the actors, but the tone and emotion were more moving.
And all the veteran employees of the wind tunnel project know that the three years the old engineer mentioned are, to him personally, ten years of persistence.
When he first inspected the area, the old engineer was more familiar with the mountain roads than the local villagers.
