The military-industrial scientific research system of the academic master

When Chang Haonan first started talking, Huang Zhiqiang didn't actually pay attention, but soon he realized that the other party was definitely not someone who had "just selected a design plan", but had already determined the specific design steps and calculation ideas. .

As for the subsequent calculation steps, since Chang Haonan explained them with his own hand-drawn sketches, Huang Zhiqiang, who could not see the pictures, was naturally completely confused.

Not only that, he had never even heard of many of the terms Chang Haonan said!

"I think some of them are just talking nonsense..." Another person in the group whispered: "I have never heard of many of the things he said in class."

After hearing these words, Huang Zhiqiang's face finally looked a little better.

"I only heard them talking about things like the cone front body and the air inlet, which seemed to be somewhat interesting..." Liu Ran was sitting a little closer to Chang Haonan and the others, but he still heard a few key words.

After hearing this sentence, Huang Zhiqiang suddenly remembered that when he was reading the English design manual before, he seemed to have seen similar content in it.

Thinking of this, he quickly took the book out of his bag and quickly flipped through the pages.

"Fuck, Brother Qiang is still awesome. It's all in English. I can understand it all."

But at this time, Huang Zhiqiang turned a deaf ear to the compliments around him, and just lowered his head and flipped through the book quickly.

“An integrated design method of inlet and conical forebody…”

"That's it!" Huang Zhiqiang quickly turned to that part of the book based on his memory.

"The integrated design method of the inlet and cone front body was first applied by Webster and Bucy in the design of supersonic cruise missiles and achieved very good results. However, the design method is still not mature enough and requires a lot of computer simulation. Simulation is very difficult..."

Seeing this, Huang Zhiqiang's eyes widened instantly and his pupils trembled.

He quickly turned to the next page - where some basic design ideas and steps were written.

After spending a few minutes translating the awkward English in the book, Huang Zhiqiang realized that the content in it was probably consistent with what Chang Haonan had just said.

Obviously the other party was not talking nonsense.

"How is that possible?" Huang Zhiqiang's breathing suddenly became heavy, and he said to himself in an unbelievable tone.

This is a design idea that is said to be "very difficult" and "immature" in design manuals from the United States!

When Huang Zhiqiang saw it at the time, he thought that no one in the whole of China would have thought of such an ingenious design method, and probably no one would have the ability to conduct the computer simulation required for such a design.

However, just now, Chang Haonan, an ordinary undergraduate student at Beijing University of Aeronautics and Astronautics, explained the design process very clearly, and it was even more complete than the content in the manual!

And at the end it seemed to be mentioned that he had conducted a CFD simulation yesterday?

Huang Zhiqiang is naturally familiar with such computer-aided design tools, and he probably knows how much work is involved.

"This... this is impossible..." Huang Zhiqiang muttered to himself again with trembling lips, and then turned to look in the direction where Chang Haonan and the four left just now, his eyes full of suspicion.

But when he focused his attention back on the book again, he suddenly became happy again - the last sentence in the book said that there is currently no very accurate way to obtain the capture area and entrance of the air inlet in the integrated design. Three-dimensional shape, so this step still relies heavily on experience.

It is obviously impossible for Chang Haonan and other undergraduates to have experience in this area.

Therefore, even if a similar shape is designed, it can only be regarded as a semi-finished product at best, or if a random air intake structure is drawn, it is impossible to get high scores.

Huang Zhiqiang knows very well that what Professor Liu Hongbo hates most is students who are clearly lacking in ability and refuse to keep their feet on the ground.

"Forget it, ignore them for now, let's finish our design first." Huang Zhiqiang took a few deep breaths, forced himself to be calm, and then took out various materials and tools from his bag.

Their team is planning to design a twin-buoy light seaplane based on the Pilatus PC-6 aircraft, which can be used for tourism, fishery management, water patrol and other tasks.

The reason for this choice was mainly because there was an identical design case in the book Huang Zhiqiang got. He just needed to refine the calculation steps a little.

According to his idea, this design should be enough to stand out from a bunch of works that are essentially just semi-finished products or aircraft models.

The other side.

Noise is naturally prohibited in the reading area of ​​the library, but the library of Beijing University of Aeronautics and Astronautics has set up some separate small classrooms around the reading area, where meetings or group discussions can be held. At this time, Chang Haonan and the four of them were Sitting inside, there are various engineering calculation manuals from the library on the table - in this era when even calculators are not very popular, various empirical coefficients in engineering calculations, and even approximations obtained by commonly used square root operations Numerical solutions need to be obtained by looking up books.

One afternoon passed, and under the guidance of Chang Haonan, except for Wu Yifan, who had a very weak foundation, the other two people finally managed to master the calculation method of the entire process.

"I..." Wu Yifan scratched his head and felt a little embarrassed that he couldn't play a role: "Well, just leave all the writing and drawing of charts to me. I'm really not good at calculating these things. "

In today's era, even graduation thesis has to be written by hand, let alone this kind of course design, so the final design plan and design instructions must be implemented on paper, and Wu Yifan happens to be able to write beautifully with a pen.

This is one of the reasons why he has hardly studied since his freshman year but has never failed a class.

Chang Haonan's own workload is determined, so the remaining work content is distributed among the other three people.

So he looked to Zhou Shuwan and Zhang Man for advice, and the latter two said there was no problem.

"It's already very late today. Do you want to go out for dinner? I'll treat you." Wu Yifan looked out the window at the darkening sky and touched his stomach.

All three people looked at Chang Haonan.

"Okay, that's it for today, let's go eat." Chang Haonan also knows that too much is too much, and besides, there are still more than three weeks until the course design deadline, so there is really no need to worry.

What's more, he was hungry himself.

Ten minutes later, the four of them appeared in a roast duck restaurant next to the school.

"Speaking of which, Brother Nan, why didn't you pay attention when you were explaining your ideas to us in the afternoon? Huang Zhiqiang and the others have been eavesdropping, and I found out." After ordering, Zhang Man asked with an unhappy look on his face: "Those people are really outrageous."

"Eavesdropping, you have to be able to understand it!" Chang Haonan was immediately happy: "I told you directly in front of the sketch, did you understand it at that time?"

"I..." Zhang Man showed a somewhat embarrassed expression: "I don't understand, but you are different. You are all top students. What if he understands it and then copies our design?"

"Huh..." Chang Haonan shook his head in an incomprehensible manner, and replied slowly: "There are also gaps between top academics."