Great Country Academician

Published on 2023-06-17 03:44 | VIP chapter

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

Simulation calculation data of wall boundary layer.

Simulated hole jet simulation calculation data

Calculation data of counter pressure gradient boundary flow layer and separation and tearing simulation simulation.

Simulation data of eddy viscous flow.

The calculation data item by item flowed through his eyes.

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

Calculated according to the last application, the calculation required by the supercomputing center established here in the controllable nuclear fusion engineering park may not need to be so high, and it can be reduced a little bit.

Of course, if other calculations are considered, the computing power of the supercomputing center must be increased by at least 50% on the basis of the perfect running model.

But even so, you can save a lot of money.

If it is to build a supercomputer dedicated to running the mathematical model of plasma turbulence, the price can be reduced a lot.

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

The Anton supercomputer is different from ordinary general-purpose supercomputers, it is specially 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 is mainly time-consuming in the update and calculation of non-bonded interactions.

This type of parallel computing is a communication-intensive problem requiring high frequency data transfers.

In contrast, general-purpose supercomputers often cannot achieve such high-frequency data transmission.

To put it simply, one is relatively balanced in development, with little difference in all aspects; while the other is at the top of a certain field.

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

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

And this kind of customized price is often much cheaper than general-purpose supercomputers.

After carefully reading the verification report of the plasma turbulence mathematical model, 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 verification data of the model. Next, we can arrange to go to the experimental pile for physical control experiments."

Hearing this, Gao Hongming clenched his fists and said excitedly, "That's great!"

Although the current mathematical model has only been simulated by supercomputers and the actual results have not yet come out, theoretically speaking, as long as the model is good enough, it can control the plasma in the chamber of a controllable nuclear fusion reactor. Turbulent.

The biggest step to realize controllable nuclear fusion has been taken, how can we not make people happy?

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

For controllable nuclear fusion, the control of plasma turbulence is undoubtedly a very critical step.

Although he has not yet practiced it, he also believes that the model he has built himself will have no problem even in the face of practical operations.

What's more, modeling and controlling plasma turbulence in a controllable nuclear fusion reactor is a dream he has been pursuing for two lifetimes, and it is even more meaningful.

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

Hearing this, Gao Hongming was startled, and quickly asked, "Who was here just now?"

Xu Chuan nodded and said, "Maybe he came to inspect the controllable nuclear fusion project, so he stopped by here."

Gao Hongming regretted: "I missed it, but it doesn't matter, I will report the good news as soon as possible."

He didn't say anything about Xu Chuan's news about the person who came to Jinling to inspect the Controllable Nuclear Fusion Industrial Park, but he knew it wasn't that.

Generally speaking, the person who travels will basically say hello in advance, after all, security work needs to be arranged.

He is in charge of the daily work of the controlled nuclear fusion project. If that person comes to inspect the controlled nuclear fusion project, he will definitely be notified to accompany him throughout the process and handle the security work well.

But he didn't receive the news, which meant that it was almost impossible to come to see the controlled nuclear fusion project.

But it was precisely because of this that he was even more surprised by the position in the hearts of the high-level people in front of him. Putting aside those difficult years, in this era, there are only a handful of people who can be so valued by the higher-ups.

After chatting for a while, Xu Chuan said again: "Gaoting, I will trouble you with one more thing."

Gao Hongming nodded quickly and said, "Although academician Xu said, there is nothing troublesome. This is my job."

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

Gao Hongming thought for a while, and said, "Do you want to use the experimental piles from other laboratories to test the plasma turbulence model?"

Xu Chuan nodded, and said, "That's right, the fusion experimental reactor on Qixia Mountain is going to be completed at least until the second half of this year or next year."

"We don't have so much time to waste. Since the mathematical model of plasma turbulence has been verified by supercomputers, it is the most important thing to do now to arrange it for fusion reactor testing as soon as possible."

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

"Only by actual measurement can we know whether it can fully control the high-temperature and high-pressure plasma in the controllable nuclear fusion reactor chamber as verified by supercomputing."

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

"This is a very time-consuming task. If we wait for our own experimental reactor to be completed, it will take too long."

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

Gao Hongming left with the task, 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 this era.

But for Xu Chuan, it was not perfect enough.

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

Indeed, the performance of copper-carbon-silver composite materials is excellent, not only high-temperature superconductivity, but it can even be superconducting at room temperature after being manufactured by special means to realize superconducting energy gap and crystal structure bond.

But it's not without its flaws.

Plasticity is its biggest shortcoming.

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

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

For example, it can be made into cables for power transportation or power generation; or it can be used for short-distance laser energization, short-distance particle energization, etc.

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

Especially the former, which requires the provision of billions to tens of gigajoules of energy instantaneously. However, the energy stored in current energy storage installations is very limited, and it is difficult to meet this requirement.

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

Because the current in the superconducting coil is a permanent current, as long as the coil is kept in a superconducting state, the electromagnetic energy stored in it will be preserved for a long time without loss, and powerful energy can be provided to the laser at any time bundle.

As for short-distance particle beams, how to generate high-energy particle beams in particle accelerators is the key.

The role played by superconducting materials is beyond doubt.

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

This is why he regards room-temperature superconducting materials as his trump card, which can indeed change the pattern of the entire world.

He failed to do this in his previous life, but now, Xu Chuan thinks he can try.

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

Even if it fails, it can be regarded as accumulating experimental data.

PS: Calvin took a moment, mainly wondering whether to write the following things, short-distance laser energization and short-distance particle energization, I think you should know what they are.

What I wrote may be a little too much, so let’s leave it at that, I’ll go to Naipeng tomorrow to see how to handle it.

Ask for a monthly ticket.

PS: Grievance Baba.JPG, I haven’t written it yet, so let me click into the small black room for the chapter to be released,