Chapter 1299: Enjoying the Joy of Academician Chang
"Really!"
Behind the goggles, Ma Xiaoyu's eyes sparkled with excitement.
If it weren't for the task at hand, I would have jumped up directly.
God knows how much hair they will have to shed for the stealth of the tail nozzle next time without a microwave darkroom.
It's fine now.
Solve the problem directly and fundamentally.
Just as his breathing became increasingly rapid and he even began to imagine what the next generation fighter jet equipped with a new aircraft engine would look like, a deep voice suddenly came from behind him:
"Pay attention to adjusting the test position!"
As a person who had experienced hardships, Liu Yongquan was keenly aware of the excited mentality of the young man in front of him, so he gently placed a hand on the latter's shoulder, signaling him to stay calm.
The interaction between the engine jet and the external atmosphere will form a series of barrel-shaped jet flow field core areas, and between every two barrel-shaped core areas is a strongly compressed positive shock wave, which is the Mach disk.
The farther the distance from the nozzle outlet, the lower the intensity of the positive shock wave and the increase in jet temperature and pressure caused by it, thus affecting the generation and distribution of plasma.
Therefore, the data at the exact center of the tail nozzle is qualified and can only prove the existence of high-density plasma.
In order to truly enter the application stage, it is also necessary to construct a plasma distribution field under natural conditions, just like understanding the flow field.
Ma Xiaoyu took a deep breath and calmed himself down a little.
But before he could make any move, an old man who had been standing behind Liu Yong and remained silent all the time shouted anxiously:
"Quick, withdraw probe number one and start cleaning. Connect probe number two to the differential amplifier circuit and move to 80cm, point B!"
"Yes, probe number one is withdrawn..."
After repeating the command, Ma Xiaoyu quickly selected the probe number, calculation method and measurement site on the operation interface, and then pressed Enter.
The drive motor located above the ground platform quickly started working, slowly lowering the other probe to the working position, while retracting the previous probe into the storage chamber for cleaning.
Because the airflow energy at the engine nozzle outlet is too high, the charged particle flow received by the windward surface of the probe is not a simple thermal deposition, but will produce a boundary layer around it, thereby forming a detachment shock wave, which interferes with the flow field and particle distribution.
To ensure the accuracy of the results, do not lower too many probes at one time.
However, some incompletely burned solid particles of propellant are inevitably mixed in the engine jet, so a single probe needs to be cooled and cleaned after working for a period of time.
If continuous testing without a window period is to be achieved, approximately 16-18 sets of probes will be needed to work in turns. However, considering the outrageous cost of iridium material sensors and the need to import some of them, only 4-6 are usually installed.
Even so, this inconspicuous test equipment still costs eight figures in euros and is one of the treasures of the 240th Institute of the Nuclear Industry.
Under normal circumstances, no matter what kind of test it is, it has to be done by them.
However, the scale of Institute 240 is not very large, and it is impossible to pull a WS-10 over there.
Moreover, since this test involves testing the performance of the aircraft engine itself, the requirements are different from usual, and it needs to be operated by relevant comrades from the 606 Institute.
In short, in the end, considering Chang Haonan's signature endorsement, the other party took a certain risk and agreed to transfer the electrostatic probe measurement system to Factory 410 for a period of time.
The condition is that it must be used under the supervision of a technical team including Director Han Chenfeng.
That was the gray-haired old man who was so anxious that he was blowing his beard and glaring.
“Lao Han, Lao Han…don’t worry.”
Liu Yongquan quickly turned around and comforted Han Chenfeng, whose face had flushed red:
"Don't worry. In the test plan we designed, the probe dwell time in each round is reduced by 30% based on the parameters you provided. We will definitely not damage your precious device..."
The latter opened his mouth, as if he wanted to say something, but in the end he didn't say anything.
Everyone knew the situation, so he was not really worried that Liu Yongquan and others would damage the equipment.
There is just a kind of heartbreaking feeling similar to "my goddess is now being stepped on by someone else".
After observing for about ten minutes, Han Chenfeng was basically sure that there was no problem with the other party's operation, so he glanced at Ma Xiaoyu's back with complicated eyes, then shook his head helplessly, and turned to another young technician wearing the standard uniform of the Nuclear Industry Group not far away:
"Xiao Lu, don't forget to record the equipment's usage log and keep it electronically on file when you return... Also, if the comrades at the Aviation Power Group have any questions, remember to take the initiative to help solve them."
Han Chenfeng is the head of the 240th Institute's business. Although he holds the title of leader of the supervision group, it is certainly impossible for him to always stand in the workshop of the 410th Factory as a supervisor.
Therefore, after making sure that the testing task was on the right track, we prepared to turn around and leave.
Of course there is another reason...
Out of sight out of mind.
Liu Yongquan, who was also relieved about the test, naturally followed suit:
"Old Han, go sit in the lounge upstairs first. After today's test is over, I will arrange a meal for the comrades who came to help..."
The head of a sister unit led a team to help, and didn't even ask for any extra money, so he had to express his gratitude.
The two of them walked quickly, and while they were saying this, they had already reached the door of the testing workshop.
After opening the door, the rushing cold wind and snowflakes made Han Chenfeng stop in his tracks.
As a southerner, although I have been working in Shengjing for more than ten years, it is still not easy for me to adapt to this kind of weather.
"Is there anything else you forgot to do?"
Liu Yongquan just thought that the other party suddenly remembered something.
Han Chenfeng just felt a little cold at first, but when asked this question, he nodded and asked the question he had been thinking about:
"Old Liu, as far as I remember... Academician Chang graduated from your 606 Institute, right?"
This somewhat abrupt turn of events made Liu Yongquan a little unresponsive for a while:
"Academician Chang?"
"Yes."
Han Chenfeng nodded:
"I remember the first time I heard of Academician Chang's name was during the first Zhuhai Air Show in 96. He and Academician Yan Zhongcheng jointly perfected the Kunlun engine of that year..."
Kunlun is the code name for WP-14.
Although she has become a less-noticed Mrs. Niu now, she received quite a bit of coverage when she first appeared in public as a full-size model.
There have been several rounds of commendations, including within the Commission of Science, Technology and Industry for National Defense.
No wonder Han Chenfeng was deeply impressed.
"Strictly speaking, Academician Chang was initially involved in the 601rd Project at the 8 Institute, responsible for the aerodynamic and structural design of the aircraft itself... Later, by chance, the No. 01 verification aircraft of the J-C had a surge failure in Yanliang, and that's when he started to get involved in aeroengine design."
These things, which are already old news, are no secret within the military industry system. Liu Yongquan just treated them as small talk and introduced them with a somewhat proud tone.
"So... Academician Chang can be considered a latecomer?"
Han Chenfeng suddenly turned his head to look at Liu Yongquan, with obvious shock in his pupils.
"Otherwise, why do you say that he is so amazing..."
Liu Yongquan put his hands behind his back, as if to say, "No one knows Academician Chang better than me."
Of course, in reality, as Chang Haonan's earliest deputy, he did know a lot about his early years.
"hiss……"
Han Chenfeng took a deep breath:
"It seems I have to make a copy of the material you showed me the day before yesterday, frame it and put it in my office."
The material he was talking about was the idea of plasma generation that Chang Haonan had written for Liu Yongquan in the office before.
It was precisely because he had read the contents that Han Chenfeng decided, against all odds, to lend the electrostatic probe measurement system to Factory 410 for use.
"Why are you copying that?"
The manuscript only mentioned a concept and didn't even have Chang Haonan's signature, so it didn't matter how many copies it made.
"Cough cough..."
Faced with this question, Han Chenfeng blushed and scratched his head a little embarrassedly:
"I didn't even make it to the second round of the last academician selection. Now I have to submit materials again in February next year. I want to take advantage of Academician Chang's good fortune..."
"..."
Liu Yongquan shook his head in silence. Just as he was about to make a few jokes, he heard Ma Xiaoyu's voice suddenly coming from the test station behind him:
"Boss Liu, the thrust of this engine has been measured to be... greater than before!"
