The Military-industrial Scientific Research System of the Academic Master Chapter 996

Chapter 996 The finals begin!

The next few days passed by as fast as a fly.

Almost in the blink of an eye, March 27th arrived.

According to the competition schedule, the final questions will be announced on time at three o'clock in the afternoon, and then the question answering time will begin immediately.

Total 48 hours.

Submit project documents and documentation before 3 pm on the 29th.

The scoring rules are basically the same as those in the preliminary round, and the scores are determined based on calculation speed, result accuracy and submission time.

But there is no two-out-of-three choices, only one must-answer question.

Because there were nearly 70 groups and more than 200 people participating in the finals, the venue was divided into three parts.

All located in the same conference center building.

Considering that the calculation amount of the finals will be much higher than that of the preliminary round, if you use a personal computer to participate, a lot of time will be spent waiting for calculation results and trial and error, and it is likely that you will not be able to come up with the final answer within 48 hours, so Chang Hao Nan even specially found a Sugon 3000 supercomputer and allocated part of its computing power for the competition.

As long as players log in to a temporary account and submit the calculation task, they can get the results in 1-2 orders of magnitude shorter than an ordinary PC.

Of course, as a final, some necessary rituals must be present.

It certainly can't be like the preliminary round, where the entire website can be refreshed at the right time and download a PDF to calculate the question.

Instead, all contestants must be arranged in a conference hall first. After Chang Haonan personally announces the questions, they will then go to their respective computer rooms to answer the questions -

It doesn't actually matter if you didn't hear it clearly or didn't remember it, because there will be a pre-set question in the computer.

At the same time, since the competition lasted more than one day, there were no restrictions on the players' movements.

Even if you are not used to the computer provided by the competition, you can use your own device.

Just pass the test and register in advance.

Only registered electronic equipment can be brought into the computer room.

Furthermore, they cannot be taken out until the answers are submitted.

It can also be regarded as preventing cheating to some extent.

After all, numerical calculation is not college entrance examination mathematics, and it is impossible to write the answers on a piece of paper or keep them in your mind.

As long as the storage medium is controlled, most methods will be ineffective...

It is said to be three o'clock in the afternoon, but many foreigners do not have the habit of taking a nap.

So just after dinner, people started to appear in the venue one after another.

That also includes the trio from Stanford, Hertz and Jameson —

Although the leading teacher cannot get involved in the competition itself, the stage of announcing the title itself is included in the opening ceremony of the competition, and it is impossible to exclude others.

However, Jameson, as a special guest of the conference, has an exclusive position on the podium, and he is definitely not sitting down to listen.

"Tell the truth, Haltz."

Jameson looked at Hertz who was following him and said:

"Before today, I even thought you might not be able to enter the venue..."

This is of course not a mockery of the latter, but as a representative of COMSOL, Herz has been almost continuous in the past three days, signing agreements of intent with nearly 10 industry giants involved in CFD, including software training, database sharing and new Version priority, etc.

Although this cannot be said to have successfully poached the corner of the Torch Group, at least the intention of wielding a **** at the host has been clearly revealed, and the appearance of it is actually a bit ugly.

In this case, even if you are directly expelled as a troublemaker, others will not be able to say anything.

But in the end, Herz's application for participation was approved directly, which really surprised several others.

"To be honest, even I didn't expect it to go so smoothly."

Heltz found a seat in the third row and put his briefcase aside:

"Moreover, this makes me even more suspicious that the Chinese people are trying to set a trap on the types of questions in the finals, and then watch us make fools of ourselves in public..."

Jameson shook his head decisively:

"Probably not."

"Now almost the entire industry's media and users are staring at them. If the final topic is too far from the pre-set CFD topic, then I can raise questions as a special guest, and no one will lose face by then. nice…"

Lyles Connor sat down in a seat next to him and said immediately:

"And in the past month, we have been practicing on our previous weaknesses. Even if we encounter particle flow or infinite boundary problems again in the finals, we will have ways to solve them."

"Taking a step back, it's okay..."

Having said this, he suddenly hesitated.

After making sure there were no outsiders around, he continued in a low voice:

"You can use TORC Multiphysics software to solve boundary problems during the calculation process, and finally use COMSOL to calculate the results, and then submit the project file in .cmph format."

"Even if COMSOL is not good at dealing with this kind of problem, it is just a calculation. How can it not calculate a converged result?"

After such rounds of persuasion, Hertz, who was still a little unsure, calmed down again.

Indeed, his preparations are almost foolproof, and he has even prepared many emergency plans in advance.

This includes the kind of subterfuge that Lyles just mentioned.

Nothing should go wrong. Thinking of this, Hertz breathed a sigh of relief and prepared to lean back on the chair to recharge his batteries and take a short rest.

Tonight, he has another meeting with Toyota...

The latter returned to the F1 field in 2002, but as a relatively new team, it was difficult to keep pace with its opponents in terms of wind tunnel and other hardware facilities in a short period of time.

Therefore, they are ready to learn from Ferrari's advanced experience and quickly improve the design efficiency and design level of aerodynamic components through cooperation with COMSOL...

Soon, the kick-off ceremony before the finals officially began.

There is no long and complicated process as imagined.

After Song Jingming spent about 10 minutes reviewing numerical calculations and, of course, the development history of Torch Group (thanks to the short time since Torch Group was established, there really is no history to talk about), it was Chang Haonan who came on stage as a special guest. Guest representatives spoke and read out the final topics.

It caught many people off guard who had been prepared to be bored for a while.

"Today, I am very happy to see that all the contestants have won the fierce competition from their respective schools, which shows that you are already the best among your peers in this industry..."

"No matter what the result of today's competition is, I hope you can take further steps in the field of numerical computing in the future..."

Chang Haonan stood in front of the stage, neither holding his speech script nor looking at the teleprompter. He just held a microphone in one hand and put his other hand in his pocket, pacing slowly.

After a few words of encouragement, he suddenly turned around and returned to the back of the podium, while signaling to the staff below to prepare to turn the pages of the PPT:

"Then next, I will officially announce the title of the finals!"

The entire venue instantly became silent.

Everyone is waiting for new characters to appear on the PPT.

"Here, I can reveal in advance that it is a two-phase flow problem."

Chang Haonan failed again.

The audience, who thought he would tell the topic directly, let out a burst of "ugh~" sounds.

It also made the atmosphere in the originally dull conference hall much more relaxed.

And just before everyone's final words had finished, Chang Haonan made a surprise attack:

"5, 4, 3..."

The sound of counting made everyone nervous again.

Fortunately, this time it was not a pass, but it actually counted to 1.

As Chang Haonan's voice fell, the PPT was turned to the next page.

"In the production process of plastic products, microporous injection molding technology can reduce material consumption, reduce the weight of injection molded parts, improve injection molding thermodynamics, and shorten the molding process cycle. Therefore, it has received great attention since its advent in the 1980s..."

“According to the principle of microcellular foam injection molding, the first step of the process is to prepare a uniform mixture before the melt is mixed and accumulated in the screw head. This is a necessary condition before microcellular foam injection. This requires that the screw mixing section must be There are corresponding mixing elements that can change the position of the bubbles from top to bottom, accelerating the diffusion and dissolution of bubbles in the polymer..."

"Now let's set up two polymer melts A and B. The specific properties are shown in Appendix 1 and Appendix 2 respectively. Please design a torsion element installed at the front end of the screw to mix the two substances AB..."

Looking at the topic on the PPT, Professor Jameson, who was sitting on the podium, showed a hint of surprise at first, and then turned to joy.

Although the background of the question seems a bit unpopular, its essence is nothing more than a two-phase flow mixing problem.

Although the traditional finite volume method is not suitable for solving this kind of problem, the latest version of COMSOL happens to use the Lagrangian method of unstructured mesh to solve this problem to a certain extent.

As long as the boundary problem is solved, the solution can be solved step by step according to the normal CFD problem.

It will definitely not be a problem for Lyles and others who have been specially trained by him.

Thinking of this, Jameson even glanced at Chang Haonan behind the podium with a somewhat gloating look.

In his opinion, this should be a small trick used by the other party to set the question.

Use the boundaries of drastic changes in topology to limit the performance of COMSOL.

But his cleverness was mistaken for him.

At the same time, Chang Haonan on the stage was also paying attention to Professor Jameson's reaction from the corner of his eye.

After seeing the latter's expression and eyes, he knew that he was stable this time.

The other party didn't notice the hidden pitfalls in this question at all.

By the time the contestants realized something was wrong, it should have been the morning of the third day, approaching the submission deadline.

Even if I wanted to go back and use TORCHMultiphysics to remedy the situation, it would be too late...

In fact, Herz's previous guesses were almost accurate.

However, Chang Haonan's methods were much smarter than everyone expected.

Combined with excellent confidentiality measures.

In the end, such an unsolvable conspiracy was brought to the forefront.

(End of chapter)

Chapter end

Report