Chapter 105 Model
"Okay, then we'll call and meet up at a certain time!" Li Yishen nodded. Wu Tong is not a three-year-old child. Even though they are worried about Wu Tong's safety, they cannot follow him too closely, lest the child feel constrained and rebel.
The security of the conference venue is guaranteed. Wu Tong is not a willful child. He will not leave the venue and will do what he says, so he is relieved.
"If you encounter any problems, don't get into a fight with anyone, and contact us immediately!" Li Yisheng repeatedly instructed as they signed separately. "Keep our phones turned on."
The venue was polite and required silent use, but it did not affect them. They changed their ringtones to vibrate, which was easy to feel when held in their hands. Their most important task at this conference was to take good care of Wu Tong.
"No problem!" Wu Tong made an OK gesture and headed towards her first goal, a report on partial differential equations. Partial differential equations were necessary content in the study of fluid mechanics.
"The existence and uniqueness of solutions, their extensibility, and their dependence on initial conditions, further consideration, linear equations..." Professor Fu from China was giving a lecture on dynamical systems and ordinary calculus equations. Wu Tong quietly arrived at the scene, found an unnoticeable corner, listened carefully, and occasionally made some important notes, or recorded fragments of insights inspired by the collision of thoughts.
Different fields have different meanings. Her knowledge of mathematics can be said to be top-notch in the country, but when it comes to dynamics or engines, she is a complete newbie.
Most of the information she found on the Internet was general and incomplete. After returning from Mount Tai, she found a lot of books and information on this subject from Peking University and international channels.
After careful reading, she was able to understand the theoretical knowledge section, but her knowledge and foundation were too shallow. She felt that she was still learning castles in the air and had not officially entered the door.
When Wu Tong saw the title of this group, he became interested and arranged time to come and listen.
"···According to the power··conversion model···"
At the end of the report, Wu Tong nodded her head slightly, feeling somewhat enlightened! Why did she have to embarrass herself in the circle of dynamics? Wouldn't it be better to transform it into a mathematical problem and build a mathematical model? Mathematics is her basic foundation now.
What she wanted to achieve was not to build a new engine from scratch, but to find an optimization direction and angle, and use mathematical models to calculate and deduce better parameters. This was her strong point!
It's really putting the cart before the horse, getting half the result with twice the effort, and being limited by inherent thinking!
However, her research on dynamics was not in vain. Conversion problems also require some basic knowledge. Recently, research on fluid mechanics and dynamics has increased day by day. Her ideas have gradually extended from the engine that she was initially interested in to all the areas within her sight.
Several parameters jumped into her mind, and Wu Tong lowered her head and began to calculate them smoothly on her notebook.
With the central axis as the horizontal, the wind resistance is X, the maximum flight speed is 2.5 Mach, the length is 18.90 meters, the wingspan is 13.56, the height is 5.08 meters, the fuselage area is 78.04, and the empty weight is...
The impact force of the rectangular cross section is..., with a medium sweep angle, it is calculated that the inclination angle of the side of the middle machine is 35 degrees... Synchronous lift-to-drag ratio...
Based on some of the parameters she had seen, Wu Tong began to transform the math problem into a mathematical model and calculated it into ideal data. Because it involved sensitive issues, Wu Tong used many references or circled specific symbols. The entire complex calculation and deduction became a cipher that only Wu Tong could understand.
At the side was a Western student who was studying with the teacher. He glanced sideways and inadvertently saw a corner of Wu Tong's notes. He was instantly frightened and looked away. He couldn't understand it. Where did this big guy come from? Are all Orientals so good at math?
All the oriental students I met were so awesome! What about the internationally famous Wu Tong? It was obvious that this year's student had risen in a crushing manner.
After the report, Wu Tong closed his notebook and followed the crowd out of the venue. He met Li Yishen at the entrance and returned to his hotel room.
It was already the afternoon of the second day after the opening ceremony, and Wu Tong had some thoughts after the last report of the day.
After dinner, I told Teacher Li that she would prepare for a lecture in the afternoon at noon tomorrow and sort out what she had gained in the past few days. She would not go out at noon tomorrow, so there was no need to wait for her.
After returning to the room, Wu Tong seemed like a child who had discovered a new toy. He continued to calculate with great interest, filling in the gaps in the mathematical model that he had initially built in the afternoon.
In the absolute space where she was the only one, Wu Tong did not hide anything any more. As she calculated, she picked up a ruler and tried to draw a picture. The half-blurred shape of the plane gradually took shape under her hands. She marked the calculated data step by step in the proper position.
The F-22 Raptor is an extremely advanced fighter jet of the modern era. It was officially put into service in 2007. Many countries have been on guard against its sudden appearance beyond visual range, dimensionality reduction strike, and domineering air superiority. It is also the existence that many Chinese scientific researchers have worked hard day and night to catch up with and surpass.
Wu Tong's impression and data about it came from an inadvertent browsing in her future memory. It had been quietly covered in dust in her memory before, but at today's report meeting, she was suddenly touched and inadvertently extended her association, awakening this memory.
Based on what she had recently learned, she began to use fluid mechanics, aerodynamics, etc. as an example. She converted some of the data she had dug out from her memory into a mathematical model. Then, with the help of absolute direction and absolute deduction capabilities, she began to reversely restore the appearance data.
Some of the data may not match the precise data missing from the original version, but this is the optimal data calculated by Wu Tong based on the mathematical model transformed from various angles of mechanics and dynamics. If it does not match the original data, Wu Tong is confident that her data is the best choice. The real model does not do so, perhaps because the material and process conditions cannot reach the optimal data.
She actually didn't realize what she was doing at the moment. The definition she gave herself was just a coincidence, and she just did some confirmatory inferences and calculations.
At one o'clock in the afternoon on August 23, a fighter plane with a complete shape was born from Wu Tong's pen.
The ridged forebody, the sharp wing slats, the fuselage, the wings, the dual vector nozzles... the fuselage layout diagram appears on the plan view, with detailed data densely marked on it with arrows.
In addition to the general shape of the fighter, Wu Tong also calculated the thrust-to-weight ratio of the engine... From the perspective of materials science, he calculated and analyzed the maximum pressure, density, and mass of the fuselage materials. Under the limited weight of the fuselage, which materials are currently the closest? With limited data, Wu Tong could only try his best to deduce a rough idea.
Titanium aluminum alloy?
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