Chapter 525: Why not ask about the magical medium rare?
I don’t know if it’s a coincidence or if there is really God’s will.
Compared with previous times, the rain outside the window came thicker and faster.
When Tao Shiyan first looked at it, there were still rain stars ticking outside the window.
Then just a few seconds pass.
The rainwater gathered on the window and formed a small trickle.
Wait for Tao Shiyan to fully react.
Just listen to a "wow" sound.
The sound of rain has already become a roar, the sky seems to have cracked countless holes, and the heavy rain has gathered into a waterfall, pouring down towards the earth.
As the heavy rain falls.
The entire floor where the meteorological center is located suddenly became as silent as a morgue.
Immediately afterwards.
Tao Shiyan suddenly realized something, turned his head sharply, and looked at Ye Duzheng beside him.
I only see this moment.
My friend's originally rosy face had lost all color, all the original manuscripts in his hands were scattered on the ground, and his hands hung helplessly on both sides of his thighs.
Ye Duzheng seemed completely unaware of this, staring intently at the window.
In fact, it's not just Ye Duzheng.
At this time, everyone in the entire meteorological headquarters looked at the crackling windows with dull expressions.
The heavy rain tore the sky and tore the hearts of all of them.
After a while.
A tall young man, who had been very active since Tao Shiyan entered the door, suddenly relaxed his shoulders and sat down heavily...or rather fell back on the chair, looking at the ground blankly.
After a few seconds.
A short-haired girl next to him also slowly sat back.
She put her hands on the table, buried her head tightly in her arms, her shoulders were shaking, and she was obviously sobbing quietly.
After a while.
A faint voice came from somewhere:
"Why does it rain? The calculation result is not like this...Meteorology no longer exists..."
Hear this.
Ye Duzheng, who had been sluggish all this time, suddenly felt a jolt of energy all over his body, and he came back to his senses in an instant.
I saw his hands quickly groping around his body a few times. After realizing that the documents in his hands had been scattered, he immediately bent down and started to rummage for something.
A little less than half a minute later.
He stood up with a few pieces of paper, put them on the table, and started calculating as if no one else was watching.
"ΔNΔxΔyΔz=u1N1ΔyΔzΔt?u2N2ΔyΔzΔt..."
"The corollary to why it rained at 7:30 is... I found it. If it rains, the advection pattern will change, and then infer..."
"Then it needs to be replaced with a compressible continuity equation here...and then it needs to be replaced here...and it needs to be replaced here..."
"Also, the molecular diffusion term must be replaced here to be much smaller than the turbulence term. The external source and sink terms cannot be ignored, and the parameters of the eddy diffusion coefficient must also be expanded..."
Tao Shiyan did not stop this, and just watched his friend make calculations.
After all, he is also a practitioner in the meteorological field. He knows how much this kind of thing can hit a person, and he must be given a chance to vent.
ten minutes later.
Ye Duzheng's rapid breathing suddenly stopped. He slowly raised his head and looked at Tao Shiyan bitterly:
"Brother Shiyan, I understand. We have indeed underestimated the changes in fluids in three-dimensional space. It requires at least..."
Tick bell——
Ye Duzheng didn't finish his words.
There was a rapid ringing in the corner of the office.
Ye Duzheng's assistant Zeng Qingcun was the first to recover, quickly walked to the corner and picked up the microphone:
"Hello, Meteorological Command...yes...well, I understand, okay...goodbye, comrade."
After hanging up the phone.
Zeng Qingcun quickly came to Ye Duzheng and whispered to him:
"Mr. Ye, the main factory has informed you and Mr. Tao to go to a meeting. A driver from Factory 16 will drive to pick you up later."
Ye Duzheng was silent for a moment and looked at Tao Shiyan.
Then he took a deep breath and began to put away the calculation paper on the table:
"I understand, brother Shiyan, let's get ready."
Tao Shiyan has no objection:
"good."
...........
Maybe it's because it's working time.
The cars from Factory 16 arrived very quickly.
Less than ten minutes after hanging up the phone.
A Yangtze River Jeep stopped outside the meteorological center, picked up Ye Duzheng and Tao Shiyan, and headed straight to the main factory.
Half an hour later.
The car arrived at the main factory office smoothly.
As soon as Ye Duzheng and Tao Shiyan got off the car, Li Jue's assistant Zhou Cai, who had been waiting for them, came up to them:
"Director Ye, Researcher Tao, thank you for your hard work."
Ye Duzheng shook hands with him with a heavy expression:
"Assistant Zhou, I've been waiting for a long time."
Zhou Cai was younger than Ye Duzheng, and his status was not suitable for speaking certain words, so he could only put a little more force on the hand he held to express his comfort and support.
it is more than words.
After letting go of your hand.
Zhou Cai took Ye Duzheng and Tao Shiyan into the main factory office.
As the command center of the 221 Base Factory, the main building of the factory office has three floors, and the overall building specifications are slightly higher than other units.
Of course.
The specifications here are slightly higher, not that it has any luxurious decoration.
It means that the layout of the building will be relatively refined, and the first impression will be more stable and majestic.
Properly adding some sense of majesty to office buildings is actually a good thing for improving office efficiency - provided it is appropriate.
The factory office conference room is located on the first floor of the building, near the end of the corner on the right.
Waiting for Zhou Cai, Ye Duzheng and Tao Shiyan to arrive outside the conference room door.
Zhou Cai stepped forward and gently knocked on the door of the conference room, reporting through the door:
"Report, Director Ye and Researcher Tao have arrived."
After a while.
A reply came from inside the house:
"Please come in."
Hear this.
Ye Duzheng and Tao Shiyan straightened the hems of their clothes together, smoothing out the wrinkles caused by the tense in the car.
Zhou Cai deliberately waited a few more seconds before pushing open the conference room door.
call--
Just opened the door.
A puff of white smoke came out.
The smoke blurred Ye Duzheng's vision. Unprepared, Tao Shiyan on the side even choked and coughed due to the smell of inferior nicotine:
This chapter is not over yet, please click on the next page to continue reading the exciting content! "Cough cough cough..."
Ye Duzheng hurriedly patted his friend on the back. After he regained his breath, he turned his attention to the conference room.
The area of this conference room is very large, about more than 100 square meters, which is almost the same as a commercial house in later generations.
The indoor walls have been painted with white paint, and simple waterproofing measures have been taken to prevent it from getting too damp even if it is not used for a long time.
Five iodine tungsten lamps are hung on the four corners and top of the conference room, and an oval conference table that can accommodate more than thirty people is placed on the floor.
The wall next to it is also leaning against the board of another smaller table. When there is a major discussion at the base level, another table can be expanded at any time.
At this moment.
Sitting on the conference table were more than a dozen of the base's main leaders or experts and scholars, and Ye Duzheng basically knew them all.
For example, Li Jue, Lao Guo, Lu Guangda, General Shenjian, Peng Mengxiong and others.
Many of them had cigarettes in their hands, and the ashtrays in front of them were filled with cigarette butts.
After Ye Duzheng and Tao Shiyan entered.
Li Jue, who was sitting at the top, first stood up and pointed in two directions in the middle left side of the conference table:
"Lao Ye, Lao Tao, you've had a hard journey, please take a seat."
Ye Duzheng nodded and took Tao Shiyan to his seat.
Then Li Jue signaled Zhou Cai to close the conference room door, looked around, and said:
"Okay, all the comrades who should come have arrived. Now I declare that the meeting has begun!"
The note taker on the side quickly picked up the pen and sat upright, preparing to record in real time.
Then Li Jue turned his head and looked at the window glass that was still ticking, with a somewhat regretful and heavy expression on his face:
"Comrades, the purpose of holding this urgent meeting today should be clear to everyone, right?"
Li Jue just finished speaking.
Ye Duzheng, who had not spoken since entering, suddenly stood up:
"Director, I am personally responsible for the failure of this weather forecast. I took the initiative to apply for organizational sanctions. I have no objection to any outcome!"
"Hey, Lao Ye, what are you doing?"
Looking at the decadent Ye Duzheng, General Shenjian beside Li Jue couldn't help but frown.
I saw his index finger curled and he knocked on the table twice:
"Lao Ye, weather forecasting is inherently a very difficult matter. The base and 'home' have had various discussions in advance. The accuracy of the forecast has already been expected. Who said it is your responsibility?"
"I've seen people who take credit and people who ignore responsibility. This is the first time I've seen someone like you who is so eager to be punished - your speed of surrender would make you a major in France."
Pfft——
As soon as General Shenjian said these words.
Tao Shiyan, who was drinking tea next to Ye Duzheng, couldn't help but puff up his cheeks and almost spit out a mouthful of tea.
Ye Duzheng himself couldn't help but be stunned by this. He originally thought that this meeting was going to discuss how to punish the meteorological center:
"Director Zhang, I..."
Seeing that Ye Duzheng was still squirming, General Shenjian couldn't help but frown:
"Okay, sit down quickly, don't be embarrassed here, you have to stand to show off your height, right?"
Although General Shenjian was born in 10 years, he is only seven years older than Ye Duzheng.
However, he has served in the military all his life, his resume is legendary, and his prestige is so high that few people in the base can match him.
Therefore, when he got angry, Ye Duzheng was immediately frightened and quickly sat back down obediently.
After a while.
Li Jue felt that the time was almost up, so he said to Ye Duzheng:
"Old Ye, General Shenjian is right, don't think too much about it."
"The organization asked you to come here for a meeting, not to incite accusations, let alone to discuss how to punish you and the comrades in the meteorological center."
"We came to you today for two main purposes. One is to understand the specific reasons for the failure, and the other is to see if there are any opportunities for remediation."
"So don't put any burden on you. I hope you...oh, and Researcher Tao can speak freely."
"...."
After hearing what Li Jue said.
Ye Du was surprised and couldn't help but look at Tao Shiyan.
Tao Shiyan cast an encouraging look at him and nodded.
See this situation.
Ye Duzheng couldn't help but take a deep breath and adjust his mood.
Then he opened the document bag at hand, took out a few pieces of calculation paper, and said to Li Jue:
"Director Li, Director Zhang, and several other leaders."
"To be honest, on the way here, I discussed with Lao Tao the reason for the failure of this weather forecast."
"To put it bluntly, the reason is actually very simple: the amount of data is not enough."
Li Jue was stunned for a moment and confirmed with some surprise:
“Not enough data?”
Ye Duzheng nodded:
"That's right."
On the way to his seat, Ye Duzheng noticed that there happened to be a small blackboard behind his seat with a few pieces of chalk on it.
So he simply stood up, walked to the blackboard and drew a diagram:
"...Look at the benchmark map of spatial distribution here. The problem in our calculations is mainly in the vertical position of the turbulence term...that is, the differentiation in height space."
"Because the standard k-e model we originally used was a high Reynolds number model, but the inverse results brought about by this rain show that the near-wall area will be affected by a low Reynolds number."
Then Ye Duzheng paused and gave a more intuitive explanation:
"For example, in the original model, we divided the distance of 10,000 meters from the ground to the sky into ten areas, that is, each area is 1,000 meters high."
"According to the division of the original model, in this 1,000-meter area...you can directly understand it as air pressure. The air pressure in each area will not change."
"But only now have we discovered that, let alone an area of 1,000 meters, the air pressure actually changes every time the altitude increases or decreases by one meter."
After listening to Ye Duzheng's explanation.
Tao Shiyan on the side also sighed with a heavy expression.
Brother Duzheng, we found it too late...
The air pressure Ye Duzheng mentioned is just an example that is easy to understand. It does not mean that the meteorological center does not even know that air pressure changes in real time with altitude.
The concept that 'barometric pressure' really refers to is the source term and turbulent viscosity.
Just considering that some idiots... ahem, considering that non-professionals like Li Jue don't quite understand the specific concepts.
That's why Ye Duzheng chose air pressure as an example.
Ye Duzheng's approach quickly had an effect, and Li Jue immediately understood what he was thinking:
"So Lao Ye, you mean that what limits us is not certain calculation processes, but meteorological data?"
Ye Duzheng thought for a moment and explained:
"how to say....."
"The calculation process and methods must also be optimized, but they are not a problem of direction - just like a wounded person who has been stabbed in the arm and heart."
"Although the injury to the arm cannot be ignored, it is obviously not of the same magnitude as the fatal injury to the heart."
"And weather data is the wound on our heart."
"...."
Li Jue was silent.
Before the meeting started, he actually made some guesses himself.
When he wants to come.
Meteorological calculations may be somewhat similar to the problems faced by nuclear weapons today. The main obstacle lies in specific theoretical derivation.
That is to say, some links in reality are actually relatively minor.
The result was unexpected...
The statement given by Ye Duzheng was completely contrary to what he expected. It was actually meteorological data...that is, the amount collected by those measuring instruments was not enough?
Looking at Li Jue who was deep in thought, Ye Duzheng also felt a little emotional.
Although this weather failure caused his morale to plummet and he was almost depressed.
But in a sense.
This also revealed a truth for him...or domestic meteorology:
Meteorological calculations are far more complicated than they thought.
Don't talk about the base before today.
Even meteorologists across the country probably believe that meteorological calculations depend on accuracy rather than the quantity of data.
The results of it.
This time, the base meteorological center received the most advanced instruments in the country sent from the capital, and unexpectedly received the help of dampers. It now had nearly twenty stable high-altitude data collection points.
Even the humidity sensor in Xiangshan, the capital, is difficult to provide such detailed data.
In addition, Ye Duzheng himself was also in the calculation process, and he carefully considered the problem of negative local spatial gradient...
without any exaggeration.
By chance.
Although Ye Duzheng and others are located at the border of the country, they have the best calculation conditions in the meteorological field since the founding of the People's Republic of China.
It's just that the results born under these conditions were a bit cruel, completely overturning their previous naive ideas...
If Ye Duzheng's prediction is good.
The specific model should also involve nonlinear mutations, and some very complex scenarios need to be considered.
When there are more scenarios, more data will naturally be needed to simulate them.
And just when Ye Duzheng was feeling emotional.
The Excalibur General in his seat raised a new question:
"Lao Ye, does that mean that if you want to calculate successfully, you must get more data?"
Hearing this, Ye Duzheng quickly came back to his senses and nodded:
"That's right."
"Let me confirm again, does this refer more to the large quantity, or the precision...that is, the improvement of the decimal point?"
"quantity."
"Don't we need to consider accuracy?"
"It would be nice to have high precision, but what is most lacking right now is quantity - the reason is the same as the injuries to the back of the hand and the heart mentioned before."
Hear this.
General Shenjian had a rough idea and finally asked:
"So Lao Ye, how much additional data do you need to be sure of success? I mean compared to the existing amount of data."
Ye Duzheng was silent for a moment:
"10 to the fifth power... times."
As soon as Ye Duzheng finished speaking, the meeting place fell silent.
After a while.
Peng Mengxiong on the side looked at his ears in a funny way and confirmed:
"Director Ye, what are you talking about?"
Ye Duzheng glanced at him, without any urge to laugh, but sighed:
"Peng Gong, you heard it right. Only with 100,000 times more data than now can we calculate the weather changes within three days."
"..."
I heard Ye Duzheng confirm again.
Although General Shenjian's expression remained unchanged, the palm of his hand holding the enamel cup was slightly harder.
One hundred thousand times.
If it is simply just 100,000 sets of data, then there may be a glimmer of possibility.
After all, Sun Quan in history had the advantage of giving away 100,000 or more things.
But a hundred thousand times, this is another concept.
To put it bluntly.
The base needs 100,000 thermocouple humidity meters to be able to complete this kind of data collection.
But right now, let alone 100,000 units, even if there are only 5 thermocouple humidity meters in the whole country...
Even the world is struggling to come up with so many hygrometers.
Then he thought of something else, turned to Lu Guangda and asked:
"Guangda, are our detonation test sites really not allowed to be built on sandy or rainy days?"
Lu Guangda shook his head with a serious face and his attitude was very decisive:
"Absolutely not. In fact, sandy days are better. Although sand and minerals will affect the composition of the test site wall, as long as there is not a strong sandstorm, some wind-blocking measures can be used to start the work normally."
"But it's different on rainy days. Rainwater will affect water migration. Even if a shed is used to block water, humidity will affect the orderly hydration reaction."
"A wall built in this state may still be usable if it does not withstand the explosion, but under the impact of the explosion, it is very likely to collapse."
"Collapse is prone to accidents, and can damage impact traces and have a serious impact on cold explosion data collection."
Hearing what Lu Guangda said.
Peng Mengxiong also raised his hand and expressed his stance:
"Director Zhang, Comrade Guangda is right, the construction of the detonation test site must be carried out under dry conditions."
"Once the conditions are relaxed, the consequences may be disastrous."
Among the attendees at the meeting, Peng Mengxiong was one of the few experts who had ever gone to Maoxiong to study thermonuclear technology.
When he visited the reactor of the Moscow Institute of Thermal Engineering, Mao Xiong, the expert in charge of building the detonation test site, mentioned this matter to him.
Whether it is Mao Xiong, Across the Sea or John Bull, they must require dry conditions when building a detonation test site.
At that time, the expert also told Peng Mengxiong.
Once Mao Xiong encounters rainy days during the construction of the detonation test site, the entire test site must be demolished and started all over again, even if the completion rate reaches 99%.
no way.
This is not only a safety matter, the inspection of shock waves is also a top priority.
Any steps involving hydration reactions will affect data collection.
After hearing the answers given by Peng Mengxiong and Lu Guangda, General Shenjian's brows suddenly frowned.
For an industrial overlord like Mao Xiong, it is not difficult or costly to overturn and start over.
But for today's poor rabbit, this is another concept...
But the problem is that the detonation test site must be conducted under dry conditions, and currently, if you want to measure the weather, you need 100,000 times more data...
Therefore, the choice currently before the base is actually only one way.
That means investing a huge amount of money, building workstations in dry weather, and gambling on luck with God.
Think of this.
General Shenjian put out his cigarette butt and prepared to express his decision.
But before he spoke.
Lao Guo, who had been silent until now, suddenly raised his hand and said:
"Old Li, I have something to say."
Li Jue looked at his friend:
"But it doesn't matter."
After hearing this, Lao Guo put down his pen, looked around, hesitated for a moment and said:
"I was thinking...if you really have no choice, can you ask Han Li?"
"After all, the meteorological data itself is not confidential. Even if we tell him that we want to collect meteorological information, there will be no problem."
"Han Li also came up with the damper technology not long ago. Assuming that the society he mentioned called Fengling Yueying really exists..."
"Perhaps if the guarantee is not enough...he can still give a little surprise?"
