Chapter 930 Challenge from COMSOL
Although he said he wanted to chat with Zheng Liangqun, the other party had already been transferred out of the capital after commanding the 50th National Day military parade the year before last and went to work at the Jiangcheng Command Post of the Air Force.
At this juncture, it is impossible for Chang Haonan to fly thousands of kilometers to find someone for some personal matter.
Besides, Chang Jiayao and Zheng Hui are not 23 yet, so there is still time.
So, Chang Haonan is still preparing to return to his own job first——
He has not forgotten the expectations that brother units had for Torch Group at the aerospace theme meeting on September 11th.
In any case, the TORCMultiphysics software must undergo a large-scale update.
However, what Chang Haonan didn't expect was that in the more than three weeks since he devoted his main attention to the attack, the Torch Group had already ushered in a strong competitor.
……
October 8, the first working day after the National Day holiday.
Song Jingming, director of the Torch Group Office, and Wei Yongming, head of the technical department, came to the Aviation Power Group with a report——
Now that the Torch Group has become a wholly-owned subsidiary of the Aviation Power Group, Chang Haonan also This saves you the trouble of traveling to another place every day, and you can handle most specific matters at the group headquarters.
"Mr. Chang."
A knock on the door made Chang Haonan look away from the computer screen and look at the office door.
"Old Song...and Old Wei?"
Chang Haonan looked happy, and at the same time stretched out his hand to signal the two of them to sit down on the sofa:
"You two came just in time, I am planning to contact you in two days."
He said Turning the office chair, he faced the two people who were looking hesitant and said:
"Some time ago, I discussed it with several core users. The plan is to release version 2.0 of TORCH Multiphysics from the end of this year to the beginning of next year. The main updates of the new version are: first, the introduction of a new turbulence model based on DNS simulation and RANS simulation; second, the introduction of the level set method for multi-phase interface simulation and topology optimization problems."
"Especially. The latter can be said to be the top priority of this upgrade. I have already passed on the theoretical part of the conservation level set method to you. I wonder how it is currently being advanced at the application level.”
Naturally, there was no chance for Song Jingming to speak up about this purely technical issue.
So Wei Yongming immediately took over the conversation:
"Mr. Chang, we have based on the algorithm theory you gave, we have carried out common combustion, atomization, evaporation, etc. in the internal test version. The multi-phase process realizes numerical simulation on a time scale of one second. "
"As for the topology optimization problem, this is still being tackled, but the progress is pretty good. If the time node for the new version is the end of this year... maybe. I’m a little nervous, but it should be fine before the Spring Festival next year.”
Wei Yongming was born in Qinghua University and was initially responsible for developing embedded operating systems for Torch-C.B. Ferrari.
However, he soon showed his talent in other development fields and was transferred to the head office to take charge of the daily work of the entire technical department, which relieved a lot of Chang Haonan's pressure.
"Before the Spring Festival..."
Hearing the other party's answer, Chang Haonan was naturally quite satisfied, but he still lowered his head and pondered for a moment:
"Old Wei, I'd better try my best. Don’t let the comrades work overtime during the Spring Festival holiday. If the progress is really fast, then we can accept the new version being launched before the second quarter of next year.”
Whether it is the Torch Group or the entire Aerospace Power Group, because Due to the special nature of the work, continuous overtime work is objectively unavoidable.
But after all, Chang Haonan had worked as a screw for decades in his previous life, so he could still think about it from the perspective of a worker.
You know, in the field of numerical calculation software, Torch Group has achieved a global lead in a literal sense -
When we were lagging behind, we worked overtime, but now we are ahead. If we still work overtime, Wouldn't that lead in vain?
So, in industries related to computer algorithms, although Torch Group does not have the best pay, it has always been relatively humane in terms of work intensity.
Wei Yongming, who is directly in charge of the technical department, agrees with Chang Haonan's philosophy in this regard.
But this time, he did not nod immediately, but hesitated for a moment, looked at Song Jingming next to him, and then said solemnly:
"Mr. Chang, there is a situation now. You I haven’t been in the company during this period, so I may not know.”
“Oh?”
Chang Haonan raised his eyebrows:
“Tell me more about it.”
< br>
"Just last month, two days before the National Day holiday, the Swedish company COMSOL suddenly announced that they would launch the 2.5 version update of COMSOL M Ultraphysics in late October."
Wei Yongming stood up and took the The report in his hand was placed in front of Chang Haonan:
"The specific situation is written in this report, please read it." Chang Haonan immediately sat up straight and opened the folder on the desktop.
In fact, the reason why he named his numerical calculation software TORCH Multiphysics was inspired by the products of this Swedish company.
Of course it was inspired by the previous life.
However, due to a strange combination of circumstances, in this timeline, the opponent became the challenger chasing after him.
Only in the past few years, many friendly companies, including COMSOL and ANSYS, have not been able to truly shake the dominant position of Torch Group.
The content in the report is not complicated to summarize. The Swedes invited a very capable American professor to develop an unstructured grid generation algorithm based on the unstructured grid generation algorithm proposed by Chang Haonan a few years ago. The Lagrangian method can be applied to drastic changes in the interface.
Since this method does not involve high-precision formats, but follows the traditional finite volume method, it has strong universality. The most important thing is that when the quality of grid generation is poor, , a certain accuracy can still be guaranteed.
"Hiss..."
Looking at the content in front of him, Chang Haonan frowned in confusion.
If the other party can really do this without using a high-precision format, it will indeed have a considerable impact on TORCMultiphysics, and even the 2.0 version of TORCMultiphysics.
You must know that although the grid generation method specially developed by Torch Group is said to be highly efficient, it is also more efficient than others when the quality of grid generation is the same.
In general, this step still takes a long time.
In most cases, it is impossible for users to find the optimal solution in one grid generation-simulation calculation cycle.
So, if you can use low-quality meshes to achieve 80%, even 70% of the effect, the appeal will be very high.
The only question is...
Is it really possible?
"Old Wei."
Chang Haonan closed the report and looked up at Wei Yongming:
"Is there any more specific technology... uh... the technology is unlikely to be made public, but a more specific theoretical derivation process will also work?"
“The person who developed this method was Professor Anthony Jameson of Stanford University.”
Wei Yongming replied:
“He has indeed published several articles recently and If you need papers related to the finite volume method, I can send them to you when I get back.”
"That's not necessary..."
Chang Haonan came back to the computer:
"I can just check it myself..."
He quickly entered A in the search bar. .Jameson and select Stanford University in the filters.
Soon, dozens of related papers popped up.
It was only then that Chang Haonan vaguely remembered the name.
"Let me go...it's him?"
Anthony Jameson.
Before the 1990s, he was the man who made the most theoretical contributions to the field of CFD.
It is no exaggeration to say that throughout the 1970s and 1980s, Professor Jameson made more contributions to the promotion and application of CFD than everyone else in the world combined.
Although Professor Jameson's rate of producing results has slowed down slightly since the mid-1990s, Chang Haonan still feels a bit pressured by his opponent's ability to invite such a legendary figure.
He arranged the search results according to time and quickly found the article Wei Yongming said.
Afinite-volumemethodfortheLagrange-Eulerequations......
Published on TheJournalofChemicalPhysics.
Compared to JCAS where Chang Haonan’s paper was published, this JCP is definitely the top journal in the industry.
"If this is the case, then the tradition of not working overtime during the Spring Festival may have to be broken..."
Chang Haonan thought this while opening the PDF document just downloaded to the desktop...
< br>(End of this chapter)