Chapter 994 Finals Preparation (New January, please vote for me~)
?In Heltz’s original vision, although the competition title was very beneficial to his own side, after all, from the referee to the organizer, to the co-organizer and the witness, all the units are members of the Torch Group. What can you do to compete with others?
Especially in a game like this where the scoring method is extremely complex.
Just a little modification in any detail is enough to change the entire result.
?It’s not like they haven’t done this kind of thing before.
The experience is so rich.
Hence, Hertz’s best expectation at the beginning was that there would be about a dozen teams using COMSOL software to represent their own schools or research institutions in the finals—
As long as you can show your own banner in the competition held by the opponent, you will be considered a victory.
??However, the final result was a huge blow to him.
There are two teams of our own people in the first three.
Four teams among the top ten are from our own team.
As for what’s next…
Sorry, the overall ranking is presented in ten groups on one page.
In other words, most people will only pay attention to the first page and the page with their own team.
This is no longer a banner.
This is to plant the flag in the opponent''s base camp.
??Although it can be seen that the vast majority of contestants choose to use TORCH Multiphysics, COMSOL has achieved a balance in the high-end rounds with a relatively small sample size.
To a certain extent, it can even be said to be an advantage.
On the contrary, it further illustrates its excellent performance in the CFD field.
??Including the group from Santa Clara University next door, although the results were slightly lower and to a considerable extent improvised, the overall ranking still reached 31st.
??Also without any suspense, he represented the school and entered the finals.
And, not only that.
The rules of the competition do not place many restrictions on the calculation methods and calculation tools of the participating teams.
?There are still almost three weeks until the finals.
This means that some teams may temporarily decide to change the calculation software after seeing the preliminary results.
Or at least be more prepared.
So by the time of the finals, the number of teams in the COMSOL camp is likely to further increase...
Even...occupied the mainstream!
?Thinking of this, Hertz seems to have already seen the day when he will step on ANSYS with a fist and a torch, get a promotion and a salary increase, and reach the pinnacle of his life.
“I think it’s okay to celebrate.”
Even though he was trying hard to restrain himself, his voice still trembled a little.
Even Professor Harold, who has always been serious, did not refuse this time for the first time.
On the contrary, it was the three students who showed amazing calmness.
“I think the focus right now is still preparing for the finals.”
?Lyles Connor clenched his fists. It was obvious that he had not gotten over the excitement just now, but he still tried his best to appear calm:
“A high ranking in the preliminary rounds will actually bring greater pressure to the finals.”
"Moreover, this result still takes advantage of the questions to a large extent. We cannot expect that we will have such good luck in the finals, so we still need to increase training on special types of questions during this period, such as the first question in the preliminary round If you encounter such a particle flow problem in the finals, you won''t have the opportunity to choose two out of three..."
“There is also the issue of combining computational fluid dynamics and computational structural mechanics, which was also a shortcoming in our previous training. Although it is impossible to deal with it due to the difficulty of the preliminary round, it is completely uncertain in the final..."
…”
? Connor''s rationality also obviously affected his teammates. Hermia and George also expressed their stance and refused to open champagne at halftime.
?Of course, Hertz cannot be blamed for this.
As a representative of COMSOL, his interests are not exactly the same as those of the contestants—
For Heltz, having so many teams reach the finals with such a high ranking is already a win.
?Even if the results of these teams in the finals are not ideal, that is still an issue that the participating teams and schools must consider.
?Even if I exhaust my lifelong imagination, I can’t imagine how I could lose.
So in his opinion, celebrating now is not a half-time champagne at all. Of course, Herz is not a person without eyesight.
Since someone had already expressed his refusal, he did not insist anymore.
Hence, I started thinking about how to use this time to build momentum.
After all, being able to gain an advantage on someone else''s territory is definitely a once-in-a-lifetime opportunity, and you must seize it...
…
at the same time.
Compared to the jubilation at Stanford, the atmosphere here in China seems a bit subtle.
Although the influence of this competition has not yet extended to the melon-eating masses, there is no good media to report such as "This humiliating defeat has become a hot topic in the numerical computing community recently...".
But pairs of eyes in the industry are watching.
You must know that in order to avoid possible intellectual property issues, many companies will buy all the mainstream numerical calculation software on the market.
??As long as COMSOL can really show outstanding performance in the CFD field, there will definitely be many users willing to try it.
Although Torch Group has usage habits and compatibility barriers accumulated over the years, it will not lose much of the market immediately. However, for high-tech products such as computer software tools, performance is ultimately fundamental.
“Mr. Chang, should we consider making some special changes in response to the situation at COMSOL during the final question setting process?”
??Although Song Jingming knew that his boss had planned this for a long time, as a non-technical person, he could not understand the turning point of this plan and how exciting it could be, so he was very panicked at this time:
“I’m worried that if we can’t give the other party a strong enough counterattack, it will affect users’ confidence in our products…”
Before Chang Haonan could speak, Meng Weizheng, who was in charge of the referee team, also expressed his agreement:
"Yes, Mr. Chang, because the tiebreaker rules are clearly written and a lot of content is disclosed after the game, what we referees can do is limited. For example, the group ranked first in the preliminary round has an advantage of more than 3 points. It is difficult not to Pull it back without letting people notice it.”
“In comparison, COMSOL’s software has poor processing capabilities for problems other than CFD. Is it possible to consider setting up some multi-method linkage problems in the finals to offset their advantages in CFD?”
Hearing this, Chang Haonan frowned, fearing that the other party would be too clever to make things worse for him, so he quickly warned in a serious tone:
“I stress again, your referee team doesn’t need to do anything, just follow the scoring rules and ensure fair and just scoring!”
As he spoke, he knocked on the table for emphasis.
Seeing this, Meng Weizheng had no choice but to nod, promising that nothing would happen.
“As for the topic of the final…”
Chang Haonan paused for a moment:
"The theme of our conference is CFD, and in the finals, every move we make will be magnified exponentially. If, as you said, in order to offset COMSOL''s advantages in CFD, we will focus on other fields. , can’t other experts participating in the conference see it?”
"But…"
Meng Weizheng obviously wanted to say something more, but was interrupted by Chang Haonan waving his hand:
"Although the specific topic of the final cannot be made public yet, I have communicated with several special guests who came to China in advance about the direction of the topic. It is about the calculation of two-phase flow of polymer melt, a 100% CFD problem, so There is no need to say more about this matter.”
In fact, Chang Haonan’s initial plan was to simplify the Falcon Z’s wing optimization design problem and then apply it.
After all, it was through the engineering documents inadvertently sent by Dassault that he discovered that COMSOL had fatal flaws in the calculation of the viscoelastic constitutive equation.
?But after thinking about it carefully, I felt that the Falcon Z project involved too many commercial secrets, and even if it was simplified, it might not be safe, so I changed my mind and "customized" a new question for my opponent.
The reason why two-phase flow is chosen is that the finite volume method is not good at dealing with systems with drastic changes in interface topology.
Two-phase flow is a typical representative.
However, for general gas and liquid two-phase flows, highly complex viscoelastic constitutive equations are rarely used.
Hence, he specially selected two relatively rare polymer melts as calculation objects.
A system that is not good at and superimposed algorithm defects.
It can be said that it was targeted deliberately.
From the outside, this is a standard CFD problem.
But in fact, it can directly hit the Achilles heel of COMSOL.
Even a Achilles’ heel that they themselves don’t even know about—
Chang Haonan has tried COMSOL several times himself, and the result is 100% divergent, and it is absolutely impossible to obtain a valid numerical solution.
It’s not just that.
If you are unlucky, even the software may crash.
In short, I kept enough camera footage and just waited for the other party to perform on stage...
(End of this chapter)