Chapter 627

After nearly a month's bombardment, Hanyu Xiaotian has basically accepted his fate to be accompanied by the technological knowledge that makes him some big in the next few years.

In fact, he had a plan to graduate quickly, but until today, when he started school for a full month, these freshmen did not even see any symbol of a symbol!

This is quite different from the purpose of Hanyu Xiaotian. How could he be so gloomy?

Since I chose this place as the first stop of my world practice, I can't give up halfway, can't I?

What's more, after a period of "in-depth study", Hanyu Xiaotian found that Xiaobai's scientific and technological knowledge had a subtle promotion on his magic power!

"Today we are talking about cosmic magnetohydrodynamics, a branch of Theoretical Astrophysics that studies the interaction between conductive fluids and electromagnetic fields. The conducting fluid moving in electromagnetic field is affected by Lorentz force on the one hand, and the induced electromotive force is produced at the same time.

The former makes the fluid motion affected by electromagnetic field, while the latter makes the electromagnetic field affected by fluid movement, thus forming the coupling between flow field and electromagnetic field.

Under certain conditions, plasma can be regarded as continuous medium, and magnetohydrodynamics is a macroscopic method to study plasma theory. In fact, the development of magnetohydrodynamics and plasma dynamics have been promoting each other....

a white bearded master of three-level patterns is talking on the stage, and a pointer is constantly decomposing the multi-dimensional changes of the universe's magnetic fluid on the sophisticated video screen.

"Most matter in the universe is in the state of gas and plasma. Inside the star, the gas is almost completely ionized. The gas in the interstellar space around a hot star is also highly ionized. Magnetic fields are ubiquitous in the universe.

There are also magnetic fields on stars. The magnetic field intensity of observed magnetic variable stars can reach tens of thousands of Gauss. The field strength of neutron star is larger, reaching 1012 ~ 1014 Gauss. There are also magnetic fields in interstellar and intergalactic space

Finally, the master concluded: "MHD turbulence is often associated with the generation and maintenance of magnetic fields in the universe. The irregular motion of turbulent flow generally makes the magnetic line of force elongate and makes the magnetic field strengthen. On the other hand, turbulence also increases the dissipation rate of magnetic field. Of course, the magnetic field will also react against the turbulent motion.

Well, that's all for today's class. It's over

Magnetic field ～, cosmic turbulence ～, increasing loss ～

several words flashed in Hanyu Xiaotian's mind. In this short two-hour course, he suddenly felt that he had a new understanding and understanding of the application of the magic magnetic field.

It turns out that the coordination between magnetic forces should be... To achieve the best effect; to maximize the magnetic force, the loss of these turbulent forces should be reduced; in order to form a perfect magnetic field, there are still so many factors that need to be paid attention to...

"well, if I want to reduce the magic magnetic field again and strengthen the force in the field of magnetic force, maybe according to that one What the master said is not to reduce the magnetic lines, on the contrary, we should increase the density and make them form streamline vortex as much as possible...

Han Yu Xiaotian kept thinking.

Obviously, this class of magnetohydrodynamics inspired him a lot, and he felt that he had even touched the key to the next stage of the magic magnetic field.