Chapter 346 Laser Energy Enhancement and Particle Acceleration

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

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

Wall boundary layer simulation verification data.

Simulated circular hole jet simulation calculation data

Inverse pressure gradient boundary flow layer and separation and tearing simulation calculation data.

Simulation calculation data of vortex viscous flow.

Each item of verification data flowed through his eyes.

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

Calculated based on the last application, the computing requirements of the supercomputing center established here in the Controlled Nuclear Fusion Engineering Park may not be that high, and it can be reduced a little more.

Of course, if other aspects of calculations are taken into account, the computing power of the supercomputing center must be increased by at least 50% on the premise of perfect operation of the model.

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

If a supercomputer is built specifically to run plasma turbulence mathematical models, the price can be reduced even further.

It’s like the supercomputer ‘Anton supercomputer’ in the chemistry world.

The Anton supercomputer is different from ordinary general-purpose supercomputers in that it is specially designed for MD simulation.

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

This type of parallel computing is a communication-intensive problem and requires high-frequency data transmission.

In contrast, general-purpose supercomputers often cannot transmit data at such a high frequency.

To put it simply, one has relatively balanced development and is not much different in all aspects; while the other is top in a certain field.

Just 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 plasma turbulence mathematical models, it can be customized.

And the price of this kind of customization is often much cheaper than that of a general-purpose supercomputer.

After carefully reading the calculation 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 are no problems with the model's verification data. Next, we can arrange to conduct physical control experiments on the experimental reactor."

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

Although this set of mathematical models has only been run through supercomputing simulations and the actual results have not yet been released, in theory, as long as the model is good enough, it can control the plasma in the controllable nuclear fusion reactor chamber. Turbulent.

The biggest step towards realizing 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 still much calmer.

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

Although he has not yet practiced it in practice, he still believes in the model he has built himself, and there will be no problem even in practice.

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 of even greater significance.

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

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

Xu Chuan nodded and said: "Maybe he came to inspect the controllable nuclear fusion project, so he dropped 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 the news that Xu Chuan said about the person who came to Jinling to inspect the controllable nuclear fusion industrial park, but he knew it wasn't this.

Generally speaking, those who travel will basically say hello in advance. After all, security work needs to be arranged.

He is responsible for the daily work of the controllable nuclear fusion project. If that person comes to inspect the controllable nuclear fusion project, he will definitely be notified to accompany him throughout the process and handle the security guards.

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

But it was precisely because of this that he was even more surprised at the status of the person in front of him in the hearts of the senior officials. Putting aside those difficult years, in today's era, there are only a handful of people who can be so valued by the superiors.

After chatting for a while, Xu Chuan spoke again: "Gao Ting, I need to trouble you with one more thing."

Gao Hongming nodded quickly and said: "Academician Xu, just say it, it's nothing troublesome, this is my job."

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

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

Xu Chuan nodded and said, "That's right. To complete the construction of our fusion experimental reactor here in Qixia Mountain, I'm afraid we have to wait until at least the second half of this year or next year."

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

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

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

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

"This is a very time-consuming job. 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, I will collect data in this area as soon as possible."

Gao Hongming left with the task, and Xu Chuan 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 impressive for a superconducting material, at least in this era.

But for Xu Chuan, it is not perfect enough.

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

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

But it is not without shortcomings.

Plasticity is its biggest shortcoming.

Copper-carbon-silver composite materials, whether 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 energy enhancement, short-distance particle charging, etc.

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

Especially the former, it requires billions to tens of billions of joules of energy to be provided in an instant. The energy stored in current energy storage devices 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 materials is used, it will become an ideal energy storage device.

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

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

And the role played by superconducting materials in it is beyond doubt.

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

This is why he regards room-temperature superconducting materials as a killer, and it can indeed change the pattern of the whole world.

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

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

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

PS: I got stuck for a while, mainly struggling whether to write the following things. I think you should know what short-distance laser energy enhancement and short-distance particle charging are.

It might be a bit too much if I write it, so let's leave it like this for now. I'll go to Nai Peng to ask how to find the right balance tomorrow.

Please give me a monthly ticket.

PS: I feel wronged.JPG. I haven't written it yet, but the chapter I published has been slammed into the black room.