Chapter 423: Rules
Lu Xiao carefully explained his thoughts. Turbulence is not exclusive to ordinary fluids. Plasma can also produce turbulence. And because of the existence of an external magnetic field, plasma turbulence is more complex and more difficult to predict than turbulence in ordinary fluids.
"Of course no problem, Brother Lu, what cooperation do you need from me?" Wu Tong accepted Lu Xiao's invitation without any hesitation. From a mathematical perspective, Wu Tong is quite good at the field of turbulence. After all, Wu Tong's accumulation of NS-equations is well-deserved to be at the top of the world.
In a fusion reaction, the temperature of the plasma will exceed 100 million degrees after reaching its peak, which is almost equivalent to the interior of a star. So far, no material known to date can block this scorching energy. However, everything is relative, and the greatness of human beings lies in making good use of tools, whether they are tools in the sense of objects or tools in terms of knowledge.
Plasma confinement is the basis for human intervention and control of this fusion reaction, and it is also the significance of the controllable nuclear fusion as a whole.
The concept of the stellarator device is to use a twisted magnetic field and a strong magnetic field to constrain fusion reactions, confine them in a limited space, keep them away from the inner wall of the orbit, and thus reduce the burning invasion of the orbital wall by high temperature.
However, even so, there are still not many known materials that can last too long at temperatures that are already considered radiation. There is also another reason that is causing the world headaches, which is neutron radiation.
However, this is about to become a thing of the past for Wu Tong. They already have high-temperature resistant materials that break through the current limitations, as well as new HC-1 heat-resistant materials that are resistant to neutron radiation and transmutation, as well as design plans to deal with radiation.
The tokamak device has reached a bottleneck in terms of discharge time.
The current record for the longest discharge is held by the "EAST" Oriental Ring in South China at 102 seconds, which almost marks the ceiling of the "discharge time" of the tokamak device technology route. Any attempt to raise this ceiling by an inch will require a high price.
Now, based on this good foundation, what they need is a powerful plasma confinement twisted magnetic field design to better control the fusion reaction for stable and long-term operation.
They have made a synchronous breakthrough in superconducting materials made by magnetic fields. Wu Tong has synchronized the data with Lu Xiao. The improved material data is also the basis they must consider. Although the breakthrough in superconducting materials has not yet achieved room temperature superconductivity, the breakthrough in new high-temperature superconducting materials has reduced many technical barriers.
A large magnetic field means a large current, and current releases heat when passing through a conductor. The wire must be soaked in liquid helium to reach the superconducting temperature and prevent the thermal effect of the current from causing the wire to heat up. After the breakthrough in superconducting materials, they no longer need to worry about this problem.
They have a material foundation for a larger magnetic field, and carbon nanographene wires are their confidence. In the field of superconducting materials, Wu Tong has created a new precedent. Their magnetic field restraint force can be increased several times while reducing the unit area of the project.
However, just having a magnetic field is still not enough. To control it, they need to have enough methods to control the magnetic field...
Fortunately, the advantages of the stellarator device in design concept mean that they only need to solve the control problem. They do not need to start the plasma current through an ohmic transformer like the tokamak device, nor do they need to consider problems such as distorted membrane, magnetic surface tearing, and resistive wall film. This is equivalent to transferring the technical difficulty to the engineering difficulty.
"The motion law of plasma in stellarators involves the study of quite complex plasma turbulence phenomena. It can be said that this is the most difficult and complex part of the many research directions on the Navier-Stokes equations. Thank you, Mr. Wu, for your contribution to the NS-equation and the general solution, which gave me enough support to boldly set breakthrough research on this law!"
Lu Xiao smiled and spread his hands. Before the NS equation was verified by Mr. Wu, this problem would become a distant topic. They could only rely on repeated failures and experiments to find the law by feeling their way across the river. However, now they have enough theoretical tools to rely on. Although it is difficult for ordinary people to use them, he is not an ordinary person either.
NS equation. After Wu Tong's proof shocked the world, Lu Xiao conducted in-depth research in this area, combining it with turbulence, which he was good at. Especially after Wu Tong supported him and granted him the authority to solve the general problem, he made rapid progress.
His continuous accumulation and improvement in turbulence not only gave him a deeper understanding of fighter jets, but also gave him enough reserves when Wu Tong invited him to study the laws of plasma motion in the stellarator device. He could get started directly and come up with design ideas in a short time.
"With the help of the NS-equation formula and the general solution, I will set it here, taking the assumption that atoms enter the plasma, and we will set the data..., with this as the target, I will... Here I need you to help me build a complete mathematical model to define and eliminate interference!" The biggest difficulty and the most uncontrollable problem is now like a soft thread that will succumb to the design of Wu Tong and Lu Xiao!
Of course, the two of them are not arrogant and blind because of this. Their attitude towards scientific research is to be cautious from beginning to end. Plasma is never something that can be ignored. High temperature and high density have always been its main concerns.
"According to the Reynolds number formula Re=ρvd/μ, high-density plasma bound by the electromagnetic field has a larger Reynolds number. Any tiny disturbance will cause the entire system composed of plasma to produce disordered and irregular turbulence... Assume this Reynolds number..." After quickly reading Lu Xiao's preliminary design, Wu Tong concentrated and thought carefully for a while, took out a draft paper and a pen, and began to deduce, and deduce, while continuing to argue with Lu Xiao.
"Set a value that satisfies certain conditions...given..."
Soon, all kinds of profound mathematical formulas filled up the draft paper. Lu Xiao tried his best to keep up with Wu Tong's thinking and calculation speed, providing physical perspectives and analysis of plasma turbulence, and gradually perfecting the mathematical model that was gradually taking shape under Wu Tong's pen. This was his tool and basis for the next step.
The movement laws of plasma in the stellarator were gradually perfected and clarified through the collision of their ideas.
Continue read on readnovelmtl.com
