Posted on 2023-06-17 03:44 | VIP Chapters

In the office, Xu Chuan carefully browsed the calculation data of the optimized mathematical model little by little.

Simulation design data of wall boundary layer.

Simulate round-hole jet simulation check data

Inverse pressure gradient boundary flow layer and separation and tear simulation data.

Vortex viscous flow simulation data.

The check data of one item after another flowed through his eyes.

It has to be said that after optimization, the numerical control model of plasma turbulence has been quite perfect; The computing power at the disposal of the Gucheng National Supercomputing Center can also run the model perfectly.

According to the calculation of the last application, the supercomputing center established in the controlled nuclear fusion engineering park may not need to be so high, and it can be cut a little more.

Of course, if we take into account other aspects of computing, under the premise of running the model perfectly, the computing power of the supercomputing center should be increased by at least about 50% on the basis.

But even then, it can save a lot of money.

If you build a supercomputer specifically designed to run mathematical models of plasma turbulence, the price can drop a lot.

It's like the 'Anton supercomputer' of the chemistry world.

Unlike ordinary general-purpose supercomputers, the Anton supercomputer is specifically designed for MD simulation.

The main task of MD simulation is to record the position and motion state of each atom, and then calculate the interaction between atoms based on the position, which mainly takes time to update and calculate the non-bond interaction.

This type of parallel computing is a communication-intensive problem that requires high frequencies for data transmission.

In contrast, general-purpose supercomputers are often unable to transmit data at such a high frequency.

To put it simply, it is a relatively balanced development, and there is not much difference in all aspects; And the other is at the top of a certain field.

It's like two students in a class, one can get 80 points in each subject, and the other can get a perfect score in chemistry, but only 60 points or even lower in other subjects such as mathematics, physics, and Chinese.

If a supercomputing center is built specifically for the operation of the mathematical model of plasma turbulence, it can be customized.

And this kind of customization price is often much cheaper than general-purpose supercomputing.

After carefully reading the calculation report of the mathematical model of plasma turbulence, Xu Chuan also had a smile on his face.

He raised his head, looked at Gao Hongming, and said, "Very good, there is no problem with the calculation data of the model, and then we can arrange the experimental reactor to conduct entity control experiments." ”

Hearing this, Gao Hongming clenched his fists and said excitedly: "Great! ”

Although the current set of mathematical models has only been simulated by supercomputing, and the actual results have not yet been released, theoretically speaking, as long as the model is good enough, then it can control the plasma turbulence in the chamber of a controlled nuclear fusion reactor.

How can we not be happy that the biggest step towards controlled nuclear fusion has been taken?

Xu Chuan was also happy, but compared to Gao Hongming, he still had to be much calmer.

The control of plasma turbulence is undoubtedly a crucial step for controlled nuclear fusion.

Although he has not yet put it into practice, he also believes in the model he has built with his own hands, and he has no problem even in the face of practical operation.

What's more, the control of the modeling of plasma turbulence in a controlled nuclear fusion reactor is a dream that he has been pursuing for both lifetimes, and it is even more meaningful.

Smiling, Xu Chuan spoke, "If you had come a few hours earlier, the Great Elder would have received this good news." ”

Hearing this, Gao Hongming was taken aback, and hurriedly asked, "That one just came here?" ”

Xu Chuan nodded and said, "Maybe I'm here to inspect the controllable nuclear fusion project, so I came here by the way." ”

Gao Hongming regretted: "I missed it, but it's okay, I'll report the good news as soon as possible." ”

He didn't say anything about the news that Xu Chuan said came to Jinling to inspect the controllable nuclear fusion industrial park, but he knew that it shouldn't be this.

Generally speaking, when you travel, you will basically say hello in advance, after all, the security work needs to be arranged.

He is responsible for the day-to-day work of the controlled fusion project, and if he comes to inspect the controlled fusion project, he will definitely be notified to accompany and handle the security work throughout the process.

But the fact that he didn't hear from him means that it is almost impossible to come to see the controlled fusion project.

But it was precisely because of this that he was even more surprised in his heart by the status of the high-level in front of him, aside from those difficult years, in this era, there are only a handful of people who can be so valued by the above.

After chatting for a while, Xu Chuan re-spoken: "Gao Hall, I will trouble you one more thing." ”

Gao Hongming nodded quickly and said, "Academician Xu said, there is nothing troublesome, this is my job." ”

Xu Chuan said with a smile: "I need a detailed data of the current controllable nuclear fusion reactors in China, such as the EAST tokamak device at the Southwest Nuclear Research Institute, the magnetic confinement fusion tokamak device HL-2M and HL-2A at the Ninth Institute of Engineering." ”

Gao Hongming thought for a moment and said, "Do you want to borrow experimental reactors from other laboratories to test the plasma turbulence model?" ”

Xu Chuan nodded and said, "That's right, if the construction of the fusion experimental reactor on our side of Xiashan is to be completed, I'm afraid we will need to wait at least until the second half of this year or next year." ”

"We don't have that much time to waste, and since the mathematical model of plasma turbulence has been validated by supercomputers, it is the best thing to do at the moment to arrange for it to be measured by the fusion reactor as soon as possible."

"Only by actual testing can we know where the model is still lacking, and we can continue to improve and optimize."

"Only by actual testing can we know whether it can control the high-temperature and high-pressure plasma in the chamber of a controllable nuclear fusion reactor globally, as verified by supercomputing."

"So I need a detailed data of other controlled fusion project test reactors in China to see if there are relatively suitable fusion reactors that can be used for actual model control experiments."

"It's a very time-consuming job, and if we wait for our own reactor to be completed, it will take too long."

Hearing this, Gao Hongming nodded approvingly and said, "No problem, leave this to me, and I will collect this data as soon as possible." ”

Gao Hongming left with the mission, and Xu Chuan also returned to the Chuanhai Materials Laboratory to continue to lead the optimization of high-temperature copper-carbon-silver composite materials.

The performance of 152K and 20T is indeed very powerful for a superconducting material, at least in the current era.

But for Xu Chuan, it's not perfect enough.

Of course, this perfection does not refer to the critical temperature or critical magnetic field. Rather, it refers to the plasticity of this material.

Indeed, the performance of copper-carbon-silver composite materials is very good, not only high-temperature superconductivity, but also superconductivity at room temperature after being manufactured by special means to achieve superconducting energy gap and grain structure bond.

But it's not without its drawbacks.

Plasticity is its biggest drawback.

Copper-carbon-silver composite materials, whether high-temperature copper-carbon-silver composite superconducting materials or room-temperature copper-carbon-silver composite superconducting materials, perform like ceramics in terms of plasticity.

This low plasticity and brittleness limit its practical use in many ways.

For example, it is made into cables for power transportation or power generation; Or it can be used for short-distance laser energy enhancement, short-distance particle charging, etc.

Whether it is a short-distance laser energy enhancement or a short-distance particle acceleration, the demand for energy levels is quite large.

The former, in particular, requires billions to tens of billions of joules of energy to be supplied in an instant. However, the energy stored by the current energy storage facility is very limited, and it is difficult to meet this requirement.

However, the development of superconducting technology can provide it with new energy, and if a superconducting closed coil made of superconducting materials is used, it will become an ideal energy storage device.

Because the current in the superconducting coil is a long-lasting current, as long as the coil remains superconducting, the electromagnetic energy stored in it will be stored for a long time without loss, and the powerful energy can be supplied to the laser beam at any time.

As for short-range particle beams, how to generate high-energy particle beams with particle accelerators is key.

There is no doubt that superconducting materials play a role in this.

Therefore, materials that can achieve superconductivity at room temperature and have excellent physical properties are the key points.

This is the reason why he regards room temperature superconducting materials as a killer feature, which can indeed change the pattern of the whole world.

He couldn't do this in his previous life, but now, Xu Chuan feels that he can try.

Anyway, the high-temperature copper-carbon-silver superconducting material has come out, so you can experiment with it first. If it can be successful, it can also provide great help and experience in the future of room temperature superconducting materials.

Even if it doesn't work, it can be used as an accumulation of experimental data.

PS: Kawen for a while, mainly in the struggle to write these things in the back, short-distance laser power-up, short-distance particle charge, these two must know what they are.

It may be a bit too much to write, so let's do it first, and I'll go to the milk puff tomorrow and ask to see how to grasp the degree.

Ask for a monthly pass.

PS: Wronged .JPG, I haven't written it yet, so I'll click the released chapters into the small black room.,