Spark

Chapter 134: The Core of the Problem

Chen Nian followed Xu Yuan into the laboratory, and the personnel with insufficient confidentiality level had already been taken away, while several core researchers who had been waiting for a long time immediately surrounded them.

"Chen Gong, you have worked hard!"

"Chen Gong, I'm sorry to trouble you."

"Work hard Chen, and you will be asked to work overtime at night, but we are really a little confused."

"Yeah, I planned to see you again tomorrow, but..."

A group of people talked in a hurry, but no one came to question the accuracy of Chen Nian's model.

Because they knew very well that being able to calculate this model proved that Chen Nian's level was definitely not lower than anyone present.

If there is a problem, it is sporadic.

It may be that the parameters of the model itself are not considered enough, or there may be small deviations in the variable design, but it is absolutely impossible that there is a problem with Chen Nian's logic and philosophy.

This is the way of communication between real technicians. It is extremely simple and pure, and the strong will be respected unconditionally.

Chen Nian greeted them one by one, and didn't care to chat with them too much, but directly asked for the simulation data from the local area, and began to analyze and compare them one by one.

Others stood beside him, explaining a few words to him from time to time.

"What we are doing here is the adjustment of the injection angle. Under the premise of a fixed 45 degrees and the same outlet cross-sectional area, we used three different groove types: straight slot, tapered type, and gradually expanded type. The results are here. Still in line with model predictions.”

"The problem is this one. After introducing the anti-crossflow structure, the data becomes completely different."

"The effect of the rotation effect on the flow heat transfer in the channel exceeds the expected value, and the final results are very different from the model results."

While listening to other people's explanations, Chen Nian looked at the data carefully.

His expression became more serious.

This is not right.

There is no problem with the experimental process, and there is no problem with the use of the model, but the results are really not right!

What's the situation?

Is it really a problem with the model itself?

If that's the case, it's a lot of fun.

After all, the main function of this model is to analyze the cooling mechanism and cooling effect of turbine blades under various structural designs.

The data output based on the model will be used as a reference for the final R\u0026D and manufacturing.

And once the model is wrong, the direction it leads will definitely be wrong.

So what is the use of this model?

After finally analyzing the technology, wouldn’t it be necessary to go back to the steps of manual physical experiments bit by bit?

Chen Nian put down the data and couldn't help reaching out and scratching his head.

After a while, he unwillingly turned to the first page of the document again, and began to examine it one by one from the beginning.

This time, he didn't let go of every detail in the experimental records.

And just looking at it like this, his eyes suddenly lit up.

The researcher on the side noticed his expression and asked:

"How about it, Mr. Chen, can you find the problem?"

Chen Nian shook his head and replied:

"You can say you found it, or you can say you didn't find it."

"At present, there is no problem with either the model itself or your experimental process, but the difference between the two exists. This is a difficult thing to do."

"I may need more data to verify and troubleshoot the model and confirm whether there are any flaws in the model itself."

Hearing this, everyone's faces showed embarrassing expressions.

Want data?

Where is the data!

Originally, the biggest problem facing China's gas turbine design work was the lack of data. Part of the reason Dongqi wanted to cooperate with Motor Sich was to obtain their accumulated historical data.

Now that the cooperation has not yet been completed, and the things have not yet been obtained, it is indeed a bit difficult to solve the problem in this way.

Thinking of this, one of the researchers said:

"Chen Gong, this method is indeed feasible, but the problem is...we really don't have data."

"Otherwise, should we do the experiment a few more times?"

"Maybe there is a problem with the operation during our experiment, and some uncontrolled variables have affected the final result."

Chen Nian shook his head and replied:

"It's useless."

"Even if the same result is finally measured, such a result is random and cannot guide our subsequent design work at all."

"To solve the problem fundamentally, you have to start with the model."

"In this way, you guys give me the data first, and I will study it when I go back. I really can't do much in such a short time."

"If there is any progress, I will inform you as soon as possible."

In fact, at this time, Chen Nian had vaguely realized where the problem was.

No, there is nothing wrong with the system, and neither is the model.

On the contrary, the model output by the system is extremely accurate.

However, this model is a theoretical model of output under absolutely ideal conditions.

It will not consider the influence of various conditions in the physical experiment, nor the influence of any human factors.

Or to put it in a classic joke:

This thing is a spherical chicken in a vacuum.

Publish a paper? enough.

theoretical experiment? Enough!

However, if it is used as a guide for physical experiments, its accuracy will inevitably cause problems.

Therefore, what Chen Nian has to do is to complete this incomplete model, supplement it with the fault tolerance factor that it should have after considering various environmental factors.

The job is not simple.

According to the normal process, it needs a lot of historical data to support it, which is why Chen Nian made that request in the first place.

But after hearing what the researcher said, he suddenly reacted.

Maybe I don't need this kind of thing.

Because, he has hung up!

I still remember that when he was designing the single crystal furnace, he used trial and error to reduce the analysis cost of the single crystal furnace one by one, and finally pushed down the "price" of the system to an extremely low level.

Now, in fact, he can use the same method to find the correct fault tolerance factors!

Thinking of this, he quietly opened the system panel, selected an unfamiliar LM-6000 gas turbine, and then selected the turbine blade module of this gas turbine.

Since he has completed the analysis of AGT110 before, the analysis consumption displayed by the system is only 0.12 points at this time.

But, yes!

There is only one number, and the knowledge increment can be reflected in the number.

Models exist, but models for reality do not yet exist.

That is to say, as long as you fill in the fault tolerance factor yourself, you can definitely accommodate changes in numbers.

It's kind of opportunistic, but.

Isn't it opportunistic to use a large amount of data to modify the model?

He just moved the process to a virtual system.

Thinking of this, Chen Nian's spirit lifted.

Afterwards, he packed up the data files on the desktop and ran back to his residence without looking back.

The researchers behind him froze in place, looking at each other.

"Is it possible to do this?"

One of them asked a little nervously.

".I don't know. Anyway, if I were to do it, there is a high probability that it won't work."

"He doesn't know or doesn't know."

"Chen Gong is indeed a genius, but I don't think this kind of thing can be solved by a genius. Or we should ask Mr. Wang to see if we can transfer some data from there?"

"It also makes sense, at least there are data, Chen Gong can also have some reference."

"Let's go, let's go find him together."

"What about Chen Gong? How about persuading him? I think it's useless."

"Stop making trouble, what qualifications do we have to persuade you? Recognize yourself, and don't use your own speculation to set an upper limit for geniuses."

"Maybe tomorrow morning, he will take out the new model."

It's bound to be a sleepless night.

Chen Nian was sitting in front of his desk, trying again and again to add that error tolerance factor to the model.

The numbers in the system interface do not change.

But he didn't suspect at all whether there was something wrong with his direction.

He just needs more time.

Let the bullet fly for a while.

It was getting dawn, but Chen Nian's eyes were still clear.

Finally, when the first ray of sunlight hit his desk through the window, the numbers in the system changed.

[Analysis consumption: 0.04 points]

It worked!

Chen Nian slammed the table, and the draft paper accumulated overnight flew all over the room.

A complete model is born!

Chen Nian couldn't wait to send the model to the mailboxes of the core members of the technical team through the intranet, and almost everyone replied with two words in seconds:

receive.

Then, ten minutes later, Chen Nian noticed that the number of source points in the system interface began to increase rapidly.

3.04, 3.11, 3.29

It didn't stop until it rose to 3.68.

Chen Nian lay down on the sofa in relief.

This time, relying on his own efforts, he ruthlessly raped the system again.

"Is there something wrong with making food a pet animal"

This is a world of magical powers.

The elves born in the dishes, the competition between delicacy and power, the journey under the stars, the challenge of being bonded...

With the memory of the former super chef, a young man came to this world full of courage and dreams.

"Gourmet food that hides magical power, show me your true power! I order you in the name of your imperial chef, Qin Lang—the birth of a food spirit!"

"...Eh? Why is there no response?!"

[6,000 stable days, 5,000 have finished an old book, trustworthy]

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