Chapter 346 Laser Energization and Particle Acceleration
Published on 2023-06-1703:44|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 verification data
Adverse 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 this kind of customization price is often much cheaper than 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 calculation 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 supercomputer 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 and 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 work.
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: "As Academician Xu said, it's nothing to worry about. This is my job." Xu Chuan smiled and said: "I need a copy of the current controllable nuclear fusion reactor in China, such as the Southwest Institute of Nuclear Research. Detailed data on experimental reactors such as the EAST tokamak device and the magnetic confinement fusion tokamak device HL-2M and HL-2A at the Ninth Institute of Technology. ”
Gao Hongming thought for a while 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 so much time to waste. Now that the mathematical model of plasma turbulence has been verified by supercomputers, the best thing to do now is to arrange for it to be tested on the fusion reactor as soon as possible."
"Only through actual testing can we know where this model has shortcomings, and we can continue to improve and optimize it."
"Only through actual measurements 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 detailed data on the test reactors of other controllable nuclear fusion projects in China to see if there are any 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. I will collect data in this area as soon as possible."
Gao Hongming left with the task, and Xu Chuan also returned to the Chuanhai Materials Laboratory to continue leading 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's not perfect enough.
Of course, this perfection does not refer to critical temperature or critical magnetic field. Rather, it refers to the plasticity of the material.
Indeed, the performance of copper-carbon-silver composite materials is very excellent, not only high-temperature superconductivity, but after being manufactured through special means to achieve superconducting energy gaps and crystal structure bonds, it can even be superconducting at room temperature.
But it's not without its flaws.
Plasticity is its biggest drawback.
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 limits 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 energy charging, etc.
Whether it is short-distance laser energization or short-distance particle acceleration, the demand for energy levels is considerable.
Especially the former, which requires billions to tens of billions of joules of energy in an instant. However, the energy stored in current energy storage devices is very limited, making it difficult to meet this requirement.
However, the development of superconducting technology can provide it with new energy sources. 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 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 at any time. bundle.
As for short-distance particle beams, how to generate high-energy particle beams using particle accelerators is the 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 his trump card. It can indeed change the pattern of the entire world.
He couldn't do this in his previous life, but now, Xu Chuan thinks he can try.
Anyway, the high-temperature copper-carbon-silver superconducting material is out, so you can experiment with it first. If it can succeed, it will also provide great help and experience in future room-temperature superconducting materials.
Even if it fails, it can still be regarded as accumulating experimental data.
PS: I was confused for a while, mainly because I was debating whether to write about the following things. I think you should know what short-range laser energization and short-range particle charging are.
What I wrote may be a bit exaggerated, so let’s leave it like that for now. I’ll go ask Naipeng tomorrow and see how to control it.
Asking for a monthly pass.
PS: Wrongful Baba.JPG. I haven’t written it yet, so I clicked the published chapter into the little black room,