The military-industrial scientific research system of the academic master.

As far as Chang Haonan is concerned personally, as long as the other party agrees to hold the award ceremony in China, everyone will be happy.

The issue of face is secondary.

Of course, on the other hand, he really didn't know what the original arrangement of this ceremony was like -

The proof of the Poincare conjecture in the previous life did not cause a public outcry like last year, so Perelman finally declined the award very smoothly.

So, there was actually no prize for the Millennium Mathematical Problem.

This was the first time in his two lifetimes.

In short, Chang Haonan finally chose to see through Arthur Jeff's behavior of saying one thing and doing another, in which he first said in his reply that "the venue of the award ceremony cannot be adjusted at will according to the winner's request", but then turned around and said that "the award ceremony will be held at the nearest International Congress of Mathematicians".

He also wrote back highly praising the efforts made by the Clay Mathematics Institute in reducing extravagance and waste and practicing thrift and diligence.

I just don’t know if the person on the other end of the network will vomit blood after seeing this…

However, Yuan Xiangya next to him was still a little slow to react. He frowned slightly after seeing the reply:

"Professor Chang, isn't this 'the nearest International Congress of Mathematicians' the one next year?"

"Yes."

Chang Haonan said this and closed the email receipt interface, then opened another email from his inbox.

Judging from the domain name, it should be from Ohio State University.

"But I remember... next year's session is almost certain to be held in BJ?"

Yuan Xiangya obviously still lacks some deep understanding of the attribute of "tsundere".

"Well...foreigners, they need to save face."

Chang Haonan shook his head helplessly:

"If I ask them to present the award in Beijing, they will definitely not agree directly. After all, it is unreasonable for the award presenter to be controlled by the award recipient."

"But then again, because of what happened last year, Perelman and I don't have to accept the award, but the Clay Institute has to give it to us for the sake of its reputation."

"So we can only find some face-saving methods."

Yuan Xiangya felt that his trip today was not in vain.

He had seen more anecdotes in this hour than in the past ten years combined—

There are people who think that $50 is a hot potato, and there are award-giving organizations that are begging to pay the winners.

But it's always a good thing.

The Chinese mathematics community has never been so proud as it is today.

More than half a century ago, China also had some systematic achievements in theoretical mathematics.

However, as a poor and weak country at that time, China could not make much noise in the international arena.

This is true in any field.

Later, the Chinese people stood up.

As a result, Huaxia Mathematics fell again...

In short, I just didn't catch up with the good time.

But now, maybe the bitterness is over and the sweetness is coming...

Looking at Chang Haonan who had returned to work, Yuan Xiangya suddenly felt that although he was past the best age to achieve results, if he changed his path, it seemed that he could still do something...

"Then I won't disturb your work."

Thinking of this, Yuan Xiangya stood up and prepared to leave.

This time, Chang Haonan just sent him to the door of the office:

"I just received a very interesting paper, so I won't send it far away."

The two shook hands as a farewell.

"It's okay, I understand the feeling."

Yuan Xiangya is an academic after all, and knows that Chang Haonan's words are definitely not an excuse:

"It's very annoying to have your train of thought interrupted while you're reading a paper. I won't be the bad guy anymore. Goodbye."

……

After seeing Yuan Xiangya off, Chang Haonan almost jogged back to the computer.

The paper on the screen that was highly praised by Chang Haonan naturally came from Professor Harold Huang's research group.

A flux Reconstruction Approach to High-Order Schemes Including Discontinuous Galerkin Methods.

Almost the moment he saw the title of the paper, Chang Haonan was attracted.

After reading the abstract and highlights, he was basically sure to accept the article.

Simply put, Professor Harold unified a series of compact high-precision formats that have emerged in recent years through a method called "high-order flux reconstruction (FR)".

By simply selecting different flux correction functions in the FR method, almost all high-precision formats based on intra-unit polynomial reconstruction can be covered.

It can be said that this achievement is equivalent to the "grand unified theory" in its sub-field.

This is especially true for Chang Haonan.

High-precision formats have been a very hot research direction in the past two years.

However, this has nothing to do with Chang Haonan himself or the Torch Group.

If I have to say something, it is only because of the emergence of TORCH Multiphysics, the whole numerical calculation track has become active, giving rise to a series of results that did not exist in the previous life or only appeared very late in the previous life.

High precision format is one of them.

In theory, its advantage is that when a sufficiently high-precision grid is used, the calculation error can be controlled to a very, very low level.

Or in other words, if such a low calculation error is not required, the number of grids can be greatly saved.

Taking the level set method studied by Chang Haonan as an example, when the error constraint is 1e-6, the grid size corresponding to the fourth-order high-precision format is 32 times the grid size corresponding to the second-order format.

In three-dimensional case, the mesh size can be reduced to 1/30000.

In this case, the additional complexity introduced by the high-precision format itself is basically negligible.

However, the application scope of each high-precision format is quite narrow and the complexity is very high. If each format is written into the software separately, the amount of code data will increase to an unacceptable level.

Furthermore, many complex engineering models cannot be processed in a single format.

Therefore, the high-precision format has not yet been included in the update plan for the current official version of the software.

The FR method, if it is true as the author says, can solve this problem perfectly.

It is sufficient for the user to set the flux correction function.

As for why such a significant paper was published in JCAS... Chang Haonan could probably guess it.

Although the FR method solves the problem of "the narrow application scope of a single method", it still needs to overcome two other obstacles in order to truly realize its application:

This is similar to the reason why level set methods are difficult to generalize.

High-precision formats have extremely high requirements on meshing accuracy.

If the mesh is coarse, the results of the high-precision format may be worse.

Moreover, due to the relatively poor adaptability of high-precision formats, it also places high demands on the level of engineers using CFD software.

Even with FR, it is impossible to solve some simple problems by relying solely on software presets like traditional low-level methods.

This is the case in the field of numerical computing. Different people use the same software tools to complete the same project, and the results are often very different.

However, at this early stage of the development of the CFD industry, the level of most users is hard to describe.

Therefore, the industry is generally not optimistic about the development prospects of high-precision formats in the short term.

Even Chang Haonan was the same before today.

However, he was two steps ahead of others——

Torch Group not only has a unique grid division algorithm in the industry, but also has a numerical calculation business department specifically responsible for "after-sales" and even regularly holds numerical calculation business training.

This is also one of the core reasons why TORCH Multiphysics dares to set a high price.

In other words, there are three huge mountains facing competitors.

After turning over one, there are still two left.

But Chang Haonan was already standing in front of the third mountain, and the road would be smooth after he climbed over the next one.

And the FR method in front of us is not even a trekking pole.

It's a tunnel boring machine.

Can open a tunnel directly out...

Thinking of this, he quickly threw the paper into the folder where the first issue was published, then picked up the phone on the table, ready to ask the Torch Group office to send an email to Professor Harold in the name of the company.

See if you can poach the other party directly.

However, after pressing two numbers, his right hand was suspended in the air again.

As the dialing action was interrupted, a tone indicating that the number was no longer in service soon rang out from the receiver.

After hesitating for a moment, Chang Haonan put down the phone again.

Although Torch Group has gained a certain reputation in the industry, it is still a Chinese company after all.

It is now the early 21st century.

Even though Chang Haonan has used various means to make China's development much faster than in the previous life, for those who have not experienced the two timelines, this contrast cannot be felt.

Therefore, going abroad or even immigrating is still the lifelong dream and goal of many people.

And they are poaching people from developed countries, especially the United States, which still seems to be in its heyday...

It is quite difficult.

Influenced by the propaganda from the United States, China's image in the eyes of Americans is not much different from that of a certain South Asian power, even if it is not to say that it is still at the Qing level.

Therefore, if you just send someone an email so abruptly, I'm afraid the effect won't be very good.

We still need to lay the groundwork.

Besides, Chang Haonan also had to confirm whether this Harold Huang was really knowledgeable.

After all, the journal editorial department is not responsible for the authenticity of the content of the paper.

But as a leader, he must be responsible for the development of the company he is in charge of.

After this consideration, Chang Haonan came up with a new plan in mind.

So he picked up the receiver again and quickly dialed the number of the Torch Group office.

"Hello, Lao Song, it's me, Chang Haonan."

"Remember to make arrangements. When TORCH Multiphysics 2.0 is officially released in the second half of the year, we will hold a numerical algorithm and computational science conference."

“Yes, for the whole world.”

"You can consider the specific form and arrangement. The funding will be mainly borne by the group. Of course, it would be even better if others are willing to sponsor."

"Well...if our friends are willing to participate, we welcome them with open arms!"