Chapter 119 Hope
Wu Tong immediately stood up and respectfully confirmed the master-disciple relationship.
"Congratulations to Mr. Cheng for having a good disciple, and congratulations to Wu Tong for meeting a famous teacher!" Lu Xiao and Zheng Hongming smiled and applauded.
Cheng Huanan and Cheng Lao are among the top experts in the domestic materials circle. Wu Tong is already extremely talented, and by studying with such a famous teacher, he will be unrivaled in the future!
Zheng Hongming joked: "Mr. Cheng, today is the day for everything to come to light!"
Anyone who has a talented student like Wu Tong would celebrate with joy!
"I'm really unworthy of this. If Wu Tong is willing, I will guide you with the materials!" Mr. Cheng's face was no longer serious as usual. At this moment, he could really be said to be smiling.
I have no regrets in my life for having such a good disciple. His face, which seldom smiles, forced a big happy smile at this moment. It looked a little funny at first, but who cares!
"I would like to ask you two to bear witness. I have finally welcomed my last disciple!"
He had said before that his last disciples inherited everything from him. He had dedicated his entire life to the country, and only his knowledge was valued and passed on, and he hoped that his students would surpass him.
He treats every entry-level student seriously, but he can basically see the upper limit of these students. As a teacher, who doesn't want to meet a top student?
Now that I have Wu Tong as my student, I have no regrets at all.
No longer feeling that he was getting older, he was eager to get started and had already started thinking about the learning schedule for Wu Tong.
According to his understanding, Wu Tong learns very quickly. Judging from her young age, she has achieved such great success. So ordinary teaching is definitely not suitable for her. Special arrangements must be made. He has to make a good plan for Wu Tong's study and adjust it according to Wu Tong's progress and needs at any time.
"Mr. Cheng, I would like to borrow Wu Tong from you. I need to discuss some issues regarding the F-22 mathematical model with Wu Tong!" Lu Xiao and Cheng Huanan reported.
Wu Tongxian now has a legitimate teacher, but he is not comparable to him, a reluctant honorary teacher who has nothing to do with him.
"Ask, ask. You guys just talk here. I'll go take a look at the repeated data in the lab and ask Cheng Xu to sort it out and import it over later!" Cheng Huanan waved his hand, stood up and walked out to make room for a quiet space. Some of the questions were probably confidential, so he avoided them consciously.
Zheng Hongming followed in Cheng Lao's footsteps, "I'll go see how everyone else's confidentiality agreements are going!"
"Teacher Lu, what are the specific issues? Let's discuss it together!"
After signing all the confidentiality agreements, Wu Tong was also surprised to learn about the current responsibilities of this teacher. The J-20, which made countless Chinese people excited and proud in the future, was actually developed by this teacher. It was really amazing!
The rise of the J-20 means that China now has a fourth-generation fighter jet that meets international standards, has the power to regain China's air superiority, and has the confidence to have a stronger voice in the international arena.
She admires these scientific researchers who are driving the country's progress. They are the ones who are silently guarding China's peace. They are willing to remain anonymous, silent, and dedicated, which is why she remembers the prosperity of China.
"Just call me Lu Xiao. I am ashamed of being a nominal teacher!" Lu Xiao opened the laptop he carried with him, exported the model he derived last night, and turned the laptop towards Wu Tong.
"Here, the aerodynamic uncertainty at high angles of attack is analyzed using a slender template. The aerodynamic and flow characteristics of the aircraft at transonic speeds and high angles of attack have three points: the asymmetric separated vortex forebody when the angle of attack is above 30 degrees, the lateral aerodynamic force that reaches the normal force, and the randomness of the front vortex... I think... under the logic of mathematics and dynamics, a special compensation mechanism can be found. The greater the angle of attack, the worse the randomness of the phenomenon!"
The problem of flow around at high angles of attack has always been a major problem that has plagued fighter jets, and it can also be said to be a cutting-edge topic today.
He initially thought of balancing this probability through some kind of exterior design. Asymmetric front wing or flat front wing layout were all options he considered. However, most of the design options failed to achieve the ideal value. It was not until Wu Tong's deductive logic appeared that he saw another new solution direction.
In the past, most domestic aviation companies either avoided this problem by not flying at high angles of attack, or compromised for stability by widening the wing surface. However, this would cause a series of problems. Any change in a fighter plane is always a major event that affects the entire system.
Wu Tong stared at the data on the screen and thought quietly. After a while, she had some ideas. She pulled over the draft paper and pen and started to deduce on the draft paper.
dujdt=ρgj+xiTij，Tij=pδij+τij=pδij+2μ(Sij23
Smmδij)+μνSmmδij(3)(3)ρdujdt=ρgj+xiTij
, Tij=pδij+τij=pδij+...····
After a while, Wu Tong pushed the full draft paper in his hand in front of Lu Xiao.
"The motion of conservation of momentum of viscous incompressible fluid, the NS equations?" Lu Xiao understood Wu Tong's principle at the first glance. As someone who studied dynamics and engaged in fighter jet design, how could he be unfamiliar with fluid mechanics?
Wu Tong nodded. "Yes, my logic is to start from the NS equation. Let P be the air fluid density, V be the velocity vector, U, V, W be the velocity components of the fluid at time T at point Z... We assume... that by directional inference... in the solution of the NS equation, we can get the optimal auxiliary wing length and width..."
"Use the wing surface vortex to offset the multi-part asymmetric separation of the front vortex!" Lu Xiao continued with shining eyes. At this point, his direction was completely enlightened. He turned his laptop, and his slender and powerful ten fingers output on the keyboard with almost visible afterimages. This silky smoothness made Wu Tong sweat.
It was confirmed that this was a god-level realm that she could not reach.
The model on the screen gradually stabilized and took shape with Lu Xiao's input, tending to be the Iron Eagle J-20 that would later fly across the sky above the square in an uplifting posture in the military parade video. It was also much more optimized than the Eagle data that had made countless military fans regretful back then!
Wu Tong's eyes were a little tearful, with little drops of wet light flashing in them.
This version of the eagle is like an eagle reborn. It has broken free from the constraints of unnecessary aging claws and feathers, replaced with new full-body feathers, and possessed a strong heart. With a lighter weight and stronger power, it is about to shine before the world, competing for the title of the most powerful fighter in the world and guarding the Chinese airspace with unlimited security!
She could contribute a little of her own strength in this process, and move towards a better direction. She could not restrain her surging joy and excitement. She wanted to give it the best gift, and sighed regretfully: "If the NS equation is proven and the general solution is found, our aircraft will be more perfect!" Now, it can only be a quasi-perfect form based on the existing conditions.
"I'm looking forward to you creating this miracle!" Lu Xiao tilted his head and spoke encouragingly.
Wu Tong's achievements gave him hope. If Wu Tong could prove the NS equations in his lifetime, he would design the best fighter plane in the world to celebrate.
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