Chapter 272: Advancing the NS equation from a physical perspective!(2/2)
"Can I ask what this is studying? Eddy flow? Turbulence?"
Being hurriedly called over, Amelia and Gu Bing were both a little curious about what their mentor was doing after disappearing for more than half a month.
Xu Chuan smiled and replied: "Study the NS equation."
Amelia opened her mouth and looked at Xu Chuan with some surprise and then at the equipment being disassembled: "Is this what you're going to use?"
Xu Chuan said with a smile: "Of course, the NS equation is designed to study fluid mechanics, and vortices are also a part of fluid mechanics."
In fact, physicists have been using vortex colliders to study turbulence since the 1990s, but those previous experiments failed to slow down and reconstruct the mechanics of the moment when the collision occurred.
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The reason why Xu Chuan did this was also because of the experience brought by rebirth.
In the aerodynamics of later generations, it was a very common thing to reconstruct the chaotic system for research, so he conveniently added it.
"Professor, can I join your research?" Amelia asked expectantly.
She studied mathematical physics in college and is also very interested in NS equations. If she joins Xu Chuan's research, even if she can't help much, she will definitely learn a lot.
On the side, Gu Bing also cast an expectant look.
Noticing the eagerness of the two students, Xu Chuan smiled and said, "You should complete the tasks I gave you before."
It's not that he doesn't want two students to participate in his project, but they probably don't have enough energy and time.
Last year he didn't take much care of the students, but this year was different. At the beginning of the new year, he personally arranged a Hodge-like math problem and gave it to them.
This problem can probably consume all their daily time.
If they can solve it, they will not be far from graduation.
After several days of work, the 3D visual reconstruction of the vortex collision was finally completed.
NTU immediately sent over the reconstructed data.
After receiving the data, Xu Chuan made some tea and turned on the computer.
After getting inspiration from Qiu Chengtong through tea mist, he has now started making tea and drinking tea, hoping to continue to get inspiration and ideas from it.
Although this was of no use, Xu Chuan unexpectedly discovered that drinking tea could help him maintain a certain concentration in his daily research, so he became accustomed to making a cup of tea before doing research.
Holding the tea cup, he took a sip and opened the reconstructed vortex ring collision experiment.
This is a completely different picture from the visual one. After the reconstructed collision, the color of the vortex ring completely disappeared or became unified.
But Xu Chuan keenly noticed that when the vortex rings collide with each other, they will be stretched outward, and antisymmetric waves will be formed at their edges.
The peaks of these waves develop into finger-like filaments that grow perpendicular to the core where the collision occurs.
Then, these "fingers" rotate in the opposite direction to the adjacent "fingers", forming a new array of micro-vortices. The interaction between these micro-vortices lasts for several milliseconds.
If you don't play it extremely slowly, it can be said that it is difficult to find these.
But it also brought a vague inspiration to Xu Chuan.
With a gentle click of the mouse, he pulled the screen to the beginning and played it again.
When new vortex arrays and ripples were formed, Xu Chuan's eyes became brighter, but there was still a trace of doubt in his bright eyes.
He always felt that these things gave him an inexplicable sense of familiarity in mathematics, but for a while he couldn't remember where he had seen them.
The mouse pulled back the progress again, and he watched the video in front of him over and over again.
Suddenly, in his mind, a piece of manuscript paper appeared in his mind, making his eyes suddenly brighten!
He remembered where he had seen this familiar thing and knew how to advance the NS equation!
PS: Yesterday’s monthly ticket has been updated. I keep my promise and give me some more monthly tickets. Dear friends, there are still about 300 monthly tickets to reach 2,000, ( ̄︶ ̄*)). Let Yawei draw a prize next month.
Chapter completed!