Siheyuan: The Era of Struggle

Chapter 211: An Extremely Cheap Stopgap Solution (Subscription Request)
Regarding what happened at Xu Damao's wedding, although Yang Ning felt a little bit sorry because he couldn't watch the excitement, but the things that happened in the courtyard were just like that, all trivial matters among the neighbors.

Without the biggest cancer, Jia Zhang, the Siheyuan would be similar to other courtyards. Although each family still had its own thoughts, there were no particularly strange things.

After Yang Ning listened to Hu Yinghong's enthusiastic account of what happened at today's wedding, the corners of his mouth twitched slightly.

Ever since meeting Hu Yinghong, Yang Ning had never realized that she was so interested in these trivial matters.

Seeing that she still looked unsatisfied, Yang Ning sighed in his heart: "Sure enough, there is no woman who doesn't like gossip!"

He felt that if his family had not moved out of that courtyard house, Hu Yinghong would probably have become a member of the street intelligence organization by now.

For Yang Ning, what happened at Xu Damao's wedding was just a small diversion in his busy work, and he didn't take it to heart after hearing it.

As we entered 57 and the drawings and data sent by Mr. Qian became more and more complete, Yang Ning and Mr. Guo became busier and busier.

"Yang Ning, have you calculated the new shock tube data?"

With the success of the 30-meter shock wave wind tunnel experiment, Academician Yu and his colleagues plan to directly carry out a full set of wind tunnel experiments.

As for Mr. Guo, he is still busy leading people to improve the explosion theory.

After all, Mr. Guo is the only professional in the entire project team when it comes to explosion mechanics.

Academician Yu is responsible for the research of shock wave ducts and experiments.

As for Yang Ning, he is responsible for integrating the research data and design ideas of the two people, and providing data and structural support for the entire shock wave wind tunnel.

"I figured it out. But according to my calculations, if we want our wind tunnel to have a jet nozzle diameter of 2 meters and maintain a minimum wind speed of at least Mach 30 and a duration of more than 160 milliseconds, the previously estimated length of 100 meters seems not enough. We need to increase it by at least meters, and that's without suppressing the explosion energy."

"If Mr. Guo can't make it in time, then we can only build a wind tunnel with a diameter of 1.2 meters as an emergency measure."

"What can't I catch up with?" Just as Yang Ning finished speaking, Mr. Guo's voice came from behind him.

"Mr. Guo!"

"teacher!"

Seeing Mr. Guo, Yang Ning and Academician Yu quickly greeted him.

Mr. Guo waved his hand and asked the two people, "What were you talking about just now? What are you talking about that I can't catch up with?"

Academician Yu was not yet the "Father of Shock Wave Tunnel" at that time, and he felt a little embarrassed in front of his world-renowned teacher.

But Yang Ning didn't care about these. After spending a long time with Mr. Guo, he discovered that Mr. Guo was not as serious as he appeared. When he and Mr. Qian were together in private, they were no different from two ordinary old boys.

"We were talking about this before. If you don't hurry up and perfect the detonation theory, we can only use the old method to deal with it. You know, Mr. Qian's missile design is almost complete."

"Oh?" Mr. Guo was surprised after hearing what Yang Ning said: "If it's so fast over there, then the drawings will be ready soon?"

Then he looked at the blueprint in Yang Ning's hand and asked, "What other parts of the wind tunnel have you studied yet?"

At this time, Academician Yu mustered up his courage and said nervously: "If we continue to use the previous design concept of explosive energy, we should now be able to build a wind tunnel with a jet diameter of 80 centimeters and a maximum wind speed of Mach 15 that can be simulated for 5 milliseconds."

"What?" After hearing what his student said, Mr. Guo turned to look at Yang Ning excitedly and asked, "Did you really design this kind of wind tunnel?" "Yes!" Yang Ning nodded and said, "It has only been designed based on experimental data, and it has not been actually built yet!"

"Calculate how much money it would cost to build the wind tunnel you have designed now?" Mr. Guo calmed down at this time.

The wind tunnel designed by Yang Ning and his team can basically meet the requirements for blowing missile models.

As for the explosion theory, although Yang Ning fully cooperates with it, it is still unknown how long it will take to fully perfect it. In order not to delay the research on missiles, Mr. Guo plans to build this wind tunnel first.

“No more than 100,000!”

Yang Ning thought for a while and decided that the wind tunnel he and Academician Yu had designed now had performance that was not much different from the historical JP8.

Historically, more than a decade later, we built the JP8 hypersonic wind tunnel at a cost of only 8 yuan.

In order to avoid any accidents, Yang Ning reported a little more.

"One hundred thousand?"

After hearing the cost Yang Ning offered, Mr. Guo asked in surprise, "Are you sure that we can build the wind tunnel you designed with such a small amount of money?"

Mr. Guo knew the cost of building wind tunnels abroad. He thought that even if our labor and materials were relatively cheap, it would cost at least a million to build this one. He didn't expect that Yang Ning gave such a small budget.

"I'm sure!" Yang Ning said confidently after going over all the expenses in his mind.

"Okay, since the cost is so low, then you two should build this wind tunnel as soon as possible. If you need anything, just ask Director Nie directly."

"Row!"

Anyway, it wouldn't take much time to build this wind tunnel. When Yang Ning sent the design drawings of the wind tunnel and the parameters of the components.

Director Nie looked at the data on the blueprint and asked, "If this wind tunnel is built, does it mean that all our future aerospace research can use this wind tunnel?"

"Director Nie, this wind tunnel can only be used to blow up rockets and missiles. After all, its diameter is too small to meet the requirements of aircraft."

Historically, after JP8 came out, our intercontinental missiles and rocket satellites were launched into space immediately. However, because the diameter of JP8 was too small, it was of little help in the research and development of the J-. It was not until the s, after Academician Yu perfected the explosion theory and we built a wind tunnel with a larger diameter, that our J- was successfully launched into space.

You should know that for every one centimeter increase in the diameter of the wind tunnel jet nozzle, the energy required increases exponentially.

This is also the reason why the wind speed is getting smaller and smaller as the diameter of the wind tunnel jet nozzle becomes larger and larger and the design becomes more and more advanced in our later research.

Of course, JP22 doesn't count. Even if it could be made, we can't afford it.

It is said that every time our JP22 super wind tunnel conducts a test, the power consumption is several times the power generation capacity of the entire Three Gorges Dam.

Even if all the electricity generated in the country were added together, the power consumption would still not be enough to cover the amount it boasts about in one second.

After listening to Yang Ning's explanation, Director Nie thought for a while. Finally, in order not to delay the research on the missile, after discussion, he agreed to this stopgap plan.

(End of this chapter)