The Military-Industrial Scientific Research System of the Academic Master

Chapter 1216 Magnetohydrodynamic Power Generation?

A few days later.

Chang Haonan, who has returned to Haojing, walked into his temporary office in Haofei Group as usual.

In fact, at his level, there is no longer a requirement to check in regularly.

It's just that he has been in the capital for more than a month, which has caused Haojing to accumulate a lot of things that need to be dealt with.

According to his schedule, he needs to go to the Sixth Academy to attend a regular meeting in the afternoon, so he plans to finish all today's matters before noon.

However, God did not fulfill his wishes.

Before Chang Haonan could turn on his computer, he saw Lin Yuanyi, the office director of the hypersonic weapons project team, appearing in the corridor outside. He raised his hand and knocked lightly on the door:

"Academician Chang, this is the research and development progress report sent from the Institute of Mechanics. Look..."

The former looked up at the perpetual calendar hanging next to him and realized that it was indeed the end of the quarter when the progress report was routinely submitted.

This also means that in the next few days, about a dozen similar documents will be submitted.

"Put it on my desk."

Chang Haonan sighed secretly in his heart, but still pushed the laptop aside and took out the ballpoint pen from the pen holder.

The superb project is one of his most important things at the moment and must be dealt with first.

Soon, a plastic folder with a black cover was placed in front of Chang Haonan.

Only then did he realize that even by the standards of a quarterly report, the thickness of this thing seemed a bit exaggerated.

At first glance, it seems to be dozens of pages larger.

Lin Yuanyi obviously also saw the shock in Chang Haonan's eyes:

"Researcher Jiang said that they encountered a strange situation during this period... Although the superficial problem has been solved, the underlying cause has never been discovered..."

"Um?"

The latter's expression turned curious, and he nodded while opening the folder:

"I understand... Also, please remember to reply to Researcher Jiang and tell them that I will contact them as soon as possible..."

After finishing speaking, he lowered his head and focused on the content of the report in front of him.

Lin Yuanyi didn't answer when he saw this, and quietly exited Chang Haonan's office.

Before leaving, I didn’t forget to close the door with me...

"The effective operating time fully met the design specifications and successfully achieved normal operation under a wide Mach number range..."

"In order to reduce construction costs, the unequal straight flow design method was used in the parameter design process of the stable section to meet the flow requirements, so that the inner diameter of the high-pressure pipeline upstream of the stable section is smaller than the nozzle throat size..."

“The inverse characteristic line method used in the design process of the exchange-throat nozzle successfully solved the problem that traditional design methods cannot improve the uniformity of the flow field when applied to the design of the exchange-throat nozzle..."

"..."

In general, although some difficulties were encountered during the construction process, the progress of the Institute of Mechanics is still much more optimistic than expected.

In particular, the first ignition of the drive section was more than two months ahead of schedule.

This still makes Chang Haonan very gratified——

As for the superb verification missile, due to the participation of the Second Academy of Aerospace Science and Industry, the warhead re-entry accuracy has been greatly improved, so the test launch time is likely to be advanced from the beginning of 2007 to the first half of 2006.

If the JF16 wind tunnel can be put into use in advance accordingly, then the entire project can enter the waverider body in advance, and even enter the scram stamping research stage in sync with the United States.

Thinking of this, Chang Haonan's movements of turning pages and making marks became brisk.

But not long after, he saw the "strange situation" that Lin Yuanyi just said.

"The calculated total air flow temperature and the actual temperature parameters obtained by the temperature measurement probe are about 10% lower than the initial calculation results, but there is no deviation in the air flow velocity and pressure, which almost completely corresponds to the theoretical calculation results..."

"As the detonation energy continues to increase, the total temperature of the airflow will also increase accordingly, but the two are not proportional, and the higher the energy, the greater the total temperature is lower than the calculated value..."

"..."

Jiang Zonglin's text description is a little abstract, but fortunately he attached all 17 experimental data from the beginning to yesterday, and listed the most critical total airflow temperature in a separate table.

In the end, the Institute of Mechanics adjusted the parameters of the detonation drive section and the auxiliary detonation section to allow the total airflow temperature to exceed the 8000K mark. At the same time, it changed the size of the drive section outlet to maintain the corresponding airflow speed at about 6200m/s. .

As for the non-linear problem between settings and results, we directly repeated multiple experiments and made a comparison table.

In short, the initial design requirements were achieved in the project.

It will be sufficient for hypersonic research within a few years.

However, the Institute of Mechanics has never found a theoretical explanation for this phenomenon.

Jiang Zonglin also attached his calculation steps at the end of the report, hoping that Chang Haonan would verify whether there were any errors.

The latter performed the calculation himself and determined that there were no major problems with the entire process, except for some initial parameter setting issues that would not affect the final result...

"The total temperature is not enough..."

Looking at the calculation results in front of him, Chang Haonan narrowed his eyes slightly, feeling a little confused.

The analytical solution to the second-order C-J equation has been double certified by the system and his own many calculations, and there is almost no possibility of error.

Besides, if there is a problem with such a low-level part, the working situation of the entire detonation drive section should be a mess. It is impossible to be so tight as it is now, with only the total temperature data not matching.

"Since the theory is correct, it can only be an engineering or operational problem..."

He muttered to himself while turning the document back to the "Basic Settings" section at the beginning of the experimental part.

After reading it over and over again twice, a bold guess suddenly jumped out of his mind...

Chang Haonan grabbed the red phone on the table. At first, he wanted to call Lin Yuanyi who had just delivered the document, but changed his mind after dialing a few numbers.

The content he wanted to talk about did not involve specific data, so he could directly contact the Institute of Mechanics using the confidential hotline.

After a series of beeps, the call was connected.

"Hello, this is the Institute of Mechanics of the Academy of Sciences."

Although there was a bit of fatigue in his voice, Chang Haonan could still tell that it was Jiang Zonglin he was looking for.

"Researcher Jiang, this is Chang Haonan."

A slight collision sound was heard from the receiver, as if the person who was sitting suddenly stood up and accidentally knocked something off.

"Academician Chang, go ahead."

"I have just read the report you submitted."

Chang Haonan got straight to the point:

"Let me confirm that you are currently only testing the detonation drive section itself?"

The sudden question made Jiang Zonglin on the other side a little confused, and after a few seconds he spoke in a daze:

"Well...that's right."

"Then what simulated load did you set for the location of the driven section and the nozzle?"

Chang Haonan continued to ask.

Jiang Zonglin was almost fully awake at this moment, and immediately replied:

"A gas circulation facility... The wind tunnel needs to use some high-purity rare gases during operation. This thing cannot be produced in our country at present. The import price is very expensive and the supply is limited, so we collect it for recycling during the test."

After that, he asked tentatively:

"Academician Chang, have you figured out the cause of the problem?"

"Huh——"

When Chang Haonan heard Jiang Zonglin's answer, he breathed a sigh of relief--

It just matched his previous speculation.

Of course, scientifically speaking, this alone cannot prove anything.

So, he quickly instructed:

"I'm not 100% sure yet, but I have some clues... Now you take down the circulation device, replace it with a simulated load, and then use the set of parameters calculated at the beginning to conduct another experiment!"

This request was obviously beyond Jiang Zonglin's expectations:

"This..."

Seeing that he was still a little hesitant, Chang Haonan had to explain further:

"The main working fluids of the wind tunnel are nitrogen and oxygen. The ionization potential of these two gases is very high, so any wind tunnel in the past will hardly cause them to dissociate, but the gas of JF16 The total body temperature exceeds 8000K, which is enough to generate electrons and charged ions, thus forming plasma. "

"Plasma itself has a large conductivity, and the gas flow rate at that moment is more than 6000m/s, which is very exaggerated. In addition, the gas circulation device you set up... Researcher Jiang, what do you think of the entire wind tunnel system?"

At this point, Jiang Zonglin immediately understood what Chang Haonan meant:

"The wind tunnel is equivalent to a generator?"

"That's right..."

Chang Haonan replied:

"And it is a generator that uses magnetic fluid to generate electricity!"

Chapter 1221/1354
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The Military-Industrial Scientific Research System of the Academic MasterCh.1221/1354 [90.18%]