The unparalleled talent of the country started from Harbin Institute of Technology

Chapter 177, Fluid Mechanics Simulation Software Project

March 3, 1981, the 27th day of the first lunar month.

Konami and Sega, two Japanese game companies, came to Harbin Institute of Technology with the purpose of obtaining the agency rights for the game "China Cube".

After meeting with Toru Koizumi, Wang Duoyu no longer cared about this matter.

On the same day, the bulletin board in the teaching building of the Department of Computational Mathematics announced the list of those who passed the first round of examinations, which was only ten people.

After the list is announced, the second round of interviews will be held in May, the specific time is to be determined.

Those who failed the exam also saw their scores. If the scores were above 60, they could continue to take the master's or doctoral degree exams taught by other mathematics professors at Harbin Institute of Technology. If the scores were below 60, then forget it.

If it were in the past, no one would be willing to apply for Harbin Institute of Technology's graduate school because it was not attractive.

But things are different now. The Department of Computational Mathematics at Harbin Institute of Technology now has seminars.

Even Andrew Wiles, Robert Langlands, Gerd Faltings and others actively participated in this seminar, so other mathematics enthusiasts also liked such seminars.

There are also rumors that the Department of Computational Mathematics will be split into two.

The splitting of departments and faculties may not necessarily be a good thing, but this time the splitting of Harbin Institute of Technology is definitely a good thing.

Because according to rumors, the newly established Department of Mathematics will have nine major majors, and the other Department of Information Science and Engineering will also have six major majors.

With so many majors, it is obvious that these two departments will be the largest departments in Harbin Institute of Technology.

In addition, Wang Duoyu, a mathematical genius, may hold a lecture on Fermat's conjecture on campus, or even teach a class directly.

For mathematics enthusiasts, the above three reasons are enough to make them eager to enter the graduate school of Harbin Institute of Technology.

Everyone knows the principle that those who are close to water get the moon first.

Just when the campus of Harbin Institute of Technology was bustling with activity, Qi Youhui from Fudan University in Shanghai saw a recruitment notice in the newspaper and immediately frowned and read it carefully.

"Harbin Institute of Technology is actually recruiting mathematics lecturers?"

As a college student who is about to graduate, Qi Youhui certainly hopes to make further progress. He does not want to go to ministries and other units to "live and wait for death", but hopes to improve his academic qualifications or stay in school.

Fudan University has limited places for students to stay on campus, and Qi Youhui does not meet the requirements, so he definitely cannot stay on campus to teach.

In this era, those who can stay in school to teach are all outstanding graduates.

The reason why Qi Youhui read the recruitment notice so carefully was because he thought of the mathematics legend Wang Duoyu.

The other party is at Harbin Institute of Technology, and who knows, he might really have the chance to have a "discuss" with the other party.

"Shall I try?"

Qi Youhui naturally didn't want to miss the opportunity to join Harbin Institute of Technology.

There were many people who had the same idea as Qi Youhui. Jiang Boju had not seen such a recruitment advertisement, but he heard about it from other people.

Although Jiang Boju did not need Wang Duoyu's guidance, he originally wanted to visit Harbin Institute of Technology, mainly to communicate with the group of mathematics doctoral students who were visiting Europe and the United States for exchange.

In addition, the Department of Mathematics at Peking University had been in turmoil recently, so Jiang Boju left the capital.

When Jiang Boju went to Harbin Institute of Technology, many people including Qi Youhui also went to Harbin Institute of Technology for interviews, and Lu Gongliang also set off from Sun Yat-sen University and arrived at Harbin Institute of Technology smoothly on March 4th.

"Principal Lu, welcome."

As a representative of Harbin Institute of Technology, Han Jue personally came to the train station to greet Lu Gongliang.

In fact, after Liu Deben was promoted to the secretary of Harbin Institute of Technology, Han Juecai was the best candidate for the president of Harbin Institute of Technology. Unfortunately, the higher-ups arranged for the "gilded" Lu Gongliang instead.

There is no way out. A higher-ranking official can crush a lower-ranking official. Han Jue is still the office director and has not been promoted. In the future, he can only continue to shine in this position.

Lu Gongliang didn't see Liu Deben or Li Rui, and felt a little uncomfortable.

But it’s not a good time to get angry now. After all, he just arrived and doesn’t know the situation yet.

Han Jue explained softly:

"Secretary Li just went to Beijing yesterday, and Principal Liu is still receiving guests from Japan, so the Secretary and the Principal asked me to apologize to you..."

Hearing about the so-called distinguished guest, Lu Gongliang felt much better and asked curiously:
"What are the guests from Japan doing?"

He heard that Harbin Institute of Technology has many scientific research projects, especially the famous lead-acid batteries, motors and electric bicycles, which were the export commodities with the highest foreign exchange earnings in my country last year.

"It's the Japanese game company Nintendo..."

After hearing Han Jue's words, Lu Gongliang's eyes were filled with shock.

Wow, it’s just a game, but it actually attracted many Japanese game companies. What’s even more amazing is that Konami offered 15 million US dollars to buy out the copyright of the game, but it was rejected?

Next, on the way to Harbin Institute of Technology, Lu Gongliang became more and more surprised.

Harbin Institute of Technology is really extraordinary!

Just as Lu Gongliang was driving to the campus of Harbin Institute of Technology, far across the Pacific Ocean, at the IBM headquarters in Armonk, New York, IBM President Robert Herman was furious in the conference room. His roar spread out of the conference room, making the cows and horses in the office area outside silent.

"Fuck, are you all just idiots? How come a company from a big country in the East can develop such a good optical disc storage device, but you can't? They've already applied for the patent, and look at the price they're selling it for?"

Robert Herman was very angry because last year IBM had just welcomed a competitor, Seagate, in the storage business, and now it had another competitor, Huashun.

what?

Is it true that IBM is on the decline and can no longer dominate the global computer market?

As the company with the highest market capitalization in the world and a giant in the computer industry, IBM can look down on any company in the world.

But now, in the storage business sector, Seagate and Huashun are challenging IBM one after another, which is simply ridiculous.

But IBM really has no way to deal with these two companies.

Last year, Seagate launched the 5MB ST506 hard drive product, priced at only US$1500, which was very popular in the market.

In January this year, Huashun launched a CD-ROM storage device with a capacity of 650MB and a price of US$9999.

What does good quality and low price mean?

Huashun Company gave a perfect answer.

The storage capacity of 650MB is only priced at US$9999, while the IBM1 with 3380GB capacity is priced at as high as US$. It's a steal!
So, starting from January, the market began to react.

After several months of fermentation, companies that have demand for storage voted with their feet and chose Huashun Company.

As a result, IBM's sales in the memory business segment fell by more than 56%, suffering an unprecedented blow, and this blow will continue.

As the president of IBM, he was of course very angry when he learned about this.

So today he called the person in charge of the memory business unit, as well as the technical director, to the senior management meeting, strongly criticized and accused them, and exerted great pressure on them.

Capital is profit-seeking!
After IBM became the world's most valuable company in the 1960s, it has been a giant in the global computer industry. They have dominated the computer industry for more than 20 years: with their hands in their pockets, they don't know who their opponents are.

The memory business segment ranks high among all of IBM's profitable projects, so Robert Herman attaches great importance to this segment.

Fluctuations in its revenue and profit segments will inevitably lead to changes in stock prices, which will make shareholders angry and even cause the board of directors to question and doubt Robert Herman.

"I've repeatedly told you to focus on technological research and development."

After cursing, Robert Herman turned to look at Lawrence Hawkins, the head of the marketing department, and asked if he had any good plans.
"Robert, I think we can directly acquire Huashun Company, or purchase their patents."

Lawrence Hawkins talks:

"The people of the Eastern Great Country are still struggling to find enough food and clothing. So, if we offer them a price they can't refuse, they'll definitely agree to our buyout request."

"On the other hand, I think we can propose a product bundling requirement to our customers, requiring them to purchase our memory. Otherwise, we have the right to refuse to sell our high-end computer products."

The idea of ​​buying out patents is good, but the bundling sales strategy has been opposed by many people.

Because the big sword hanging over the head of IBM is called the Antitrust Law!
More than ten years ago, IBM had already encountered antitrust sanctions. If they did this now, if they were reported, they would definitely be punished again.

However, Lawrence Hawkins argued:
"We are targeting Huashun, an overseas company, not an American company. Antitrust laws will definitely not apply to this."

"Fuck, Brent, are you blind or deaf? Don't you know how to check the law? And Klaus, are you a rock? You just sit there and don't know how to work, right?"

The two people he scolded were Brent Preston, the vice president who had just argued with him and who had always disliked Lawrence Hawkins, and Klaus Carlton, the head of the legal department.

The management of IBM is very disharmonious. Everyone has their own interests, so it is normal for them to dislike each other.

Brent Princeton and Klaus Carlton also quickly fought back, and for a moment, the conference room was filled with the sounds of the three of them arguing.

Robert Hermann, who was in a lot of trouble, didn't care about this matter. After all, he had just put a lot of pressure on these executives and he needed to let them release the pressure.

In fact, Robert Herman also knew that these executives all had ways to relieve stress, such as going to the club after get off work.

There are too many stimulants in the club, whether it is an eighteen-year-old girl or illegal super stimulants, they can make these people high.

The entire meeting lasted for a long time. In response to the decline in revenue data of the memory business segment, IBM executives discussed several solutions, one of which was to contact Huashun Company and acquire their optical disk memory patents.

Coincidentally, while IBM was holding a meeting, Seagate was also holding a meeting.

Seagate was established not long ago and was still a small company. They thought that ST506 would be a best-selling product, but they never expected that it would suffer a huge blow just half a year after its launch.

Their ST506 sales data fell by percent in the past February, which is an even more severe decline compared to last year.

So the senior executives of Seagate held a meeting to find a way to overcome the current difficulties.

However, they were not as big as IBM, so they did not have the money to acquire Huashun's patents.

Then the only thing they can do is to find a way to thoroughly study the technology of optical disc storage, and then make micro-innovations based on this to bypass Huashun Company's patent.

In short, if Seagate wants to survive, it must take a different approach, otherwise there is no other way.

At this time, on the campus of Harbin Institute of Technology, Wang Duoyu had no idea that someone on the other side of the Pacific Ocean was sharpening his knife and was ready to slaughter their Huashun Company like pigs and sheep.

Lu Gongliang had already arrived at Harbin Institute of Technology, and Wang Duoyu met him at the welcome banquet in the evening.

This banquet tonight is specially arranged for Lu Gongliang, mainly to welcome him.

After all, Lu Gongliang is about to take over the position of president of Harbin Institute of Technology and will be the second-in-command of Harbin Institute of Technology in the future.

Inside the small private room, everyone was toasting each other. After three rounds of wine and five dishes, everyone started the formal "confrontation" while eating.

Wang Duoyu watched the fire from the other side of the river. He would not participate in such a power struggle, nor did he need to participate in it, and they did not dare to provoke him.

Who made his current position so transcendent?
No matter if it was the newcomer Lu Gongliang or anyone else, as long as anyone dared to challenge Wang Duoyu, Liu Deben would be the first one to not let him go.

What's more, Li Rui, Fang Lihe and others are watching from above, and Lin Dehong, Lu Yangui and others are also eyeing them covetously.

If Wang Duoyu becomes uncomfortable at Harbin Institute of Technology, I am afraid that Lin Dehong and others will be the first to wield a big hoe and dig him out.

"Although Huashun, a subsidiary of Harbin Institute of Technology, is a relatively new company, it has generated considerable foreign exchange revenue so far."

At Liu Deben's signal, Han Jue, the office director, began to give a "work report" with a smile.

This was not a formal work setting, nor was it working hours, but Han Jue introduced himself quite formally.

It was purely a "warning" to Lu Gongliang, just to let him know that Harbin Institute of Technology is very powerful at the moment.

With Han Jue's introduction, Wang Duoyu also learned about the current situation of Huashun Company.

The first is that the "Chinese Cube" game that has been very popular in the past two days has finally come to an end.

The agency rights were acquired by Sega of Japan, who offered an annual agency fee of 80 million US dollars.

In addition, Huashun's affiliated factories will produce the game cartridge "China Cube" and sell it to Sega at a price of US$2.25, while the latter will sell it at a price of US$3.50.

As a result, Sega's profit seems to be only $1.25, which means that at least 64 million game cartridges must be sold each year to offset the $80 million agency fee.

In the current global game market, Japan and the United States are the two largest markets, and markets in other places such as Europe do not contribute much.

In other words, Sega needs to sell at least 20 to 30 million game cartridges in the two major markets of Japan and the United States respectively to earn back the 80 million US dollars in agency fees.

It's definitely not okay to work so hard and earn so little money.

However, according to predictions, the market potential of the "China Cube" game is definitely more than this. Selling 100 million game cartridges every year is the basic sales volume.

But in fact, Sega's president, Nakayama Shin'o, is not an idiot. He certainly understands the market potential of the "Chinese Cube" game, so he spent such a huge price to obtain the agency rights.

From the current perspective, there is a high probability that Sega will lose money, but in the long run, it will definitely make a lot of money.

Lu Gongliang opened his mouth wide, his face full of disbelief.

Huashun Company was established not long ago, but it was able to generate such huge foreign exchange profits.

Eighty million US dollars, this is the agency fee for one year, and the price of a box of game cartridges is 2.25 US dollars, the cost is less than 80 cents, and as sales increase, the cost will only decrease.

It’s a huge profit!
Wang Duoyu was also a little surprised. He didn't expect Sega to be so bold as to spend 80 million US dollars to purchase the agency rights.

remarkably brave!

The second is the optical disc storage product, which was launched on the market at the end of last year. Up to now, 16,537 discs have been sold, with total revenue reaching 165.3 billion US dollars.

As a result, Huashun Company's current revenue data has reached 245 million US dollars.

It can almost be said that Huashun Company has surpassed Diao Pai Company and become the most profitable company in the country.

Because according to the current trend, game cartridges will continue to be produced, and at least 100 million cartridges will be sold this year, which is a conservative estimate.

After all, at $3.50 a box, it's not expensive. Based on a unit price of $2.25, the foreign exchange revenue from game cartridges is conservatively estimated to be $225 million.

As for CD-ROM storage, sales will certainly continue to grow, but it is unknown how much it will grow.

Even so, Huashun Company was able to successfully secure the title of the foreign exchange revenue champion this year.

After hearing this, Lu Gongliang was stunned for a long time.

Because the shock these two sets of data brought to him was so strong.

When he was at Sun Yat-sen University, many scientific research projects only cost a few million RMB. If he wanted to purchase advanced laboratory equipment from abroad, he had to ask everyone for help and use connections, but the Foreign Exchange Department always ignored him.

The Foreign Exchange Department is not having a good time either, as so many units need to use foreign exchange.

In the two years of 1978 and 1979, there were more than 2,200 medium and large-scale projects. Is there any one of these projects that did not require foreign exchange?

This has caused a lot of headaches for many units. When Lu Gongliang was at Sun Yat-sen University, he often had to deal with such things.

But now, he had just arrived at Harbin Institute of Technology and heard such shocking data. Perhaps he could finally experience what it meant to be rich and powerful.

Lu Gongliang did not think that this kind of "show of power" was inappropriate, and even hoped that it would happen a few more times.

The next day, Wang Duoyu came to the memory project department laboratory to continue the unfinished work.

In the afternoon, he came to the teaching building of the Department of Computational Mathematics to attend today's seminar.

Smale and Michael Friedman were also here.

The seminar was more intense than before.

But near evening, when Wang Duoyu just returned to the office, he saw Wu Congqin and Jiang Boju walking and talking and laughing.

"Hello, Professor Wang. What a coincidence! Are you heading back to your office?"

Jiang Boju knew Wang Duoyu, and the latter of course knew him too, but that was in the previous life. Although it was not the first time they met in this life, they were really not familiar with each other.

Because Wang Duoyu had only been to Peking University a few times, either to read in the library or to give reports, he had no private contact with Jiang Boju again.

However, at this time, Jiang Boju greeted Wang Duoyu with a smile, just like an old acquaintance, which surprised the latter.

After a brief chat, Wang Duoyu learned that Jiang Boju also came to Harbin Institute of Technology because of a visiting scholar exchange group.

After Jiang Boju left, Wu Congxin invited Wang Duoyu back to his office, closed the door, and asked seriously:
"Duoyu, you've seen that more and more people are coming to Harbin Institute of Technology. Can you keep them all here?"

Wu Congxin was really envious of these visiting scholars and exchange students who came here for their reputation, and he wished that they could all stay at Harbin Institute of Technology.

Not to mention Smale, Andrew Wiles, Gerd Faltings, Robert Langlands, John Coates and others are all excellent PhDs or researchers. With the addition of this group of people, the soon-to-be-established Department of Mathematics at Harbin Institute of Technology will surely be able to quickly catch up with Peking University.

Even in the next few years, it may surpass Peking University and become the mathematics center in China.

Upon hearing this, Wang Duoyu rolled his eyes and said unhappily:

"Director, do you think I'm a god? Can I let them stay if I want them to?"

How could he not know that people like Andrew Wiles are outstanding talents?

But why did Harbin Institute of Technology keep these people?

Is it just because he is Wang Duoyu?

That definitely won't work.

However, Wu Congqin's words reminded him that after all, there were so many people coming now, and it would be a waste of resources if they were not utilized.

So, the next day Wang Duoyu locked himself in the office and started writing a new project plan.

This new project is the fluid mechanics simulation software project.

Previously, Lin Dehong told him that it was indeed very difficult to recruit talents in aircraft design and development.

In this case, why not start a new project on his side and solve this problem from the design drawing level.

The core of the fluid mechanics simulation software is a numerical solver based on the finite volume method. Wang Duoyu used this thing frequently in his previous life because its name was fluent, or CFD.

In the history of the original time and space, Boyisang, a graduate student at the University of Sheffield in the UK, was using an early CFD code developed by Professor Brian Spalding of Imperial College London to simulate combustion phenomena in disposable combustion chambers. However, because the CFD codes at the time required users to input data through punched cards, input errors were usually only discovered after the solver crashed.

Such problems made Boyisang, Jim Swithenbank, Bill Ells and others very unhappy, so they developed a Tempest software, which can guide users to complete the entire process of pre-processing, solving and post-processing, but the source code was acquired by the American Combustion Engineering Company and Battelle Laboratory for several thousand dollars respectively.

In this time and space, CFD software has not yet appeared, and Wang Duoyu certainly will not miss such an opportunity.

In fact, when Lin Dehong came to him before, he already had the idea of ​​setting up such a project.

However, this project has a huge demand for software and mathematical talents, and the investment is definitely not a small amount.

The reason is simple. CFD requires continuous software updates and the development of more advanced projects, so continuous investment is necessary.

“The initial version of the simulation software must integrate the geometry engine, mesher, solver, post-processor, etc. to ensure that these software projects must be simple and easy to use.”

Wang Duoyu wrote this in the plan.

Two days later, the plan was successfully completed, and Wang Duoyu took the plan to find Liu Deben.

The latter was with Lu Gongliang at the time, so it was a good opportunity for him to listen as well.

In the principal's office, Wang Duoyu unfolded his plan and explained the software to Liu Deben and others.

However, after hearing this, Lu Gongliang was shocked, because this software is really too large and it will be continuously updated, so the demand for memory hardware will be very huge.

For example, Wang Duoyu mentioned the pressure-based finite volume method for incompressible flow problems using algebraic multigrid technology, etc. These all illustrate one point: the investment is huge!

The technical difficulties are also a headache. This is not a simple mathematical problem because it involves many aspects.

“How much investment is required?”

Liu Deben was relatively calm and asked directly.

Wang Duoyu immediately said:
"Principal, it's not much actually. For the first phase this year, only 30 million RMB will be enough. Because at this stage we need to purchase a large amount of memory, computers and other related equipment, the cost of this will be relatively high."

"Secondly, Harbin Institute of Technology currently has a large number of mathematical talents. We must fully utilize this and tie everyone to our team, or use this to cultivate our students into talents."

Project development personnel must be selected from their own people, but when these project personnel encounter some technical problems, they can consult the visiting scholars and exchange groups.

You know, whether it is Smale or Andrew Wiles, they are all top figures in the fields of topology, geometry, algebra, etc. Although Wang Duoyu is not bad either, many hands make light work.

After all, Wang Duoyu is just a human being. No matter how powerful he is, he can't have the ability to clone himself.

Lu Gongliang took a deep breath. Thirty million RMB in project research and development funds?
Moreover, Liu Deben didn't hesitate at all and nodded in agreement.

This is simply the most ridiculous thing in the world!
Too hasty?
Wang Duoyu was not surprised to see Liu Deben nod, so after it was finalized, he prepared to start selecting people.

After Wang Duoyu left, Liu Deben asked Han Jue to notify everyone to hold a meeting to discuss the fluid mechanics simulation software project.

In the afternoon, Wu Congxin had someone post the recruitment plan for this project on the bulletin board of the Computational Mathematics Department teaching building. For a time, the entire Harbin Institute of Technology was shocked.

Another large project worth tens of millions, and this time it involves talents in software engineering, mathematical applications, physical applications and other fields.

In the early stages, we will naturally focus only on solving problems in aircraft design, and then gradually expand in the later stages.

After seeing this announcement, Jiang Boju joined in the discussion with others. However, when he returned to the office, he was called away by Wu Congqin.

"Professor Jiang, here's the thing: Professor Wang Duoyu has just established a fluid mechanics simulation software project. I'm wondering if you're interested."

Jiang Boju was very surprised that Wu Congxin personally invited him.

He came to HIT for exchange, not to participate in HIT projects.

However, there is an old Chinese saying that goes "One who has eaten someone's food should be grateful and one who has received something from them should be soft-hearted", so Jiang Boju was in a dilemma at the moment, but after thinking for a moment, he agreed under Wu Congqin's expectant gaze.

Thus, the first member to join the simulation software project was born.

There are not many mathematical talents in Harbin Institute of Technology, and even fewer software talents.

So Wang Duoyu could only look for solutions from other places, such as Fan Honggeng, Wu Zhiming, Yang Dachun and others from the handheld game console project.

Zhou Sitong and Zhao Jiawei are already the leaders of their respective small projects, so it is not easy for Wang Duoyu to take them all away, but Fan Honggeng and a few others can still be transferred out.

But when he heard that Wang Duoyu was going to take people away to participate in other projects, Yin Wenjie immediately became angry.

"Professor Wang, you can't do this! Our handheld game console project is at a critical juncture. If you take them all away, what will happen to our project?"

"Look, our operating system has already been designed to the user interface, and the program hasn't even been coded yet. If you remove all these technical backbones, the system will collapse."

"I beg you, Professor Wang, you can't get tired of the old and love the new."

As the project leader of the software technology for the handheld game console project, Yin Wenjie needs to be responsible for this aspect, so he is very afraid of anything going wrong.

But Wang Duoyu is not an ordinary person. He is the emperor of this project. Even school leaders such as Secretary Li Rui and Principal Liu Deben listen to him, so Yin Wenjie can only cry and beg for mercy. There is no other way.

Fan Honggeng, Yang Dachun and others are indeed technical backbones in the software field, with rich experience and skilled skills. Wang Duoyu took a fancy to them, and Yin Wenjie is of course very clear about this.

However, no matter how much Yin Wenjie acted, it was useless. Wang Duoyu had to take this person away, no matter who came.

Therefore, the simulation software project has gained several more technical backbones.

In addition, Wang Duoyu also wrote a letter to the Institute of Computing Technology, crying poor to old lady Xia Peisu and asking them to borrow a few technical backbones.

Lin Dehong also transferred more than 20 college students from their army, all of whom were technicians.

In total, Wang Duoyu spent nearly half a month and finally built a technical R&D team of more than 80 people.

In the project office, Wang Duoyu looked at Jiang Boju, Fan Honggeng, Yang Dachun, Wu Zhiming and others and said loudly:
"Hello everyone, today we are gathered here to develop a piece of software. Perhaps you don't know what this software actually does, but once you develop it in the future, you will understand."

"I've clearly marked it in the proposal. Our project is to develop fluid dynamics simulation software for aircraft research and design. This software can help us design aircraft and solve many problems during the design process."

"For example, we can use simulation software to numerically solve the fully viscous Navier-Stokes equations. We can also perform modeling, such as providing a variety of turbulence models suitable for flow simulations of different complexities."

For example, to design a conventional fighter jet, you first need to design a fighter jet model with a large delta wing conventional layout, and then design the equivalent wing model, the entire aircraft aerodynamic model, the air intake model, the engine model, etc.

The overall model of a fighter jet includes many drawings. When it was designed manually in the past, the drawings would be at least as large as several trucks.

You know, the process of fighter jet design is very complicated and first requires a research and demonstration stage.

This stage mainly involves demonstrating the necessity and feasibility of fighter jet research and development based on the troops' combat methods, technical requirements and combat needs, combined with the technological development level in the preliminary research stage.

This means that at this stage, all requirements for the fighter jet must be clearly defined, such as the aircraft's technical and tactical indicators, the performance of onboard weapons, radar systems and other onboard systems, as well as aircraft maintenance and support.

Although it is developed and produced by the military, there is no need to be too picky about the cost, but it is impossible to pursue power and weapons unlimitedly and then fail to control the cost.

The famous Blackbird reconnaissance aircraft is indeed very powerful. It has made the United States the overlord of high altitudes above 25,000 meters. Its invincibility has made the Polar Bear Empire and others tremble.

However, the manufacturing cost of a Blackbird reconnaissance aircraft was as high as 2 billion US dollars, and this was 2 billion US dollars before 1972. The cost was so high that it shocked Americans.

Why do we choose 1972 as the time node?
Because after 1972, the United States withdrew from the Bretton Woods system and then consolidated the dollar's hegemony by bundling the dollar and oil.

At the same time, after 1972, the Federal Reserve began printing large amounts of US dollar base currency.

Before 1972, the global base currency of US dollars was more than 80 billion US dollars, but by 1980, the global base currency of US dollars exceeded 350 billion.

Horror!
Moreover, before 1972, the whole world called the U.S. dollar "USD" because at that time the U.S. dollar was pegged to gold and U.S. dollar banknotes could be exchanged for gold.

But then it was called the US dollar, not only because it could no longer be exchanged for gold, but also because the base currency increased, global inflation soared, and the value of the US dollar became lower and lower.

So, spending 2 billion US dollars to build a Blackbird reconnaissance aircraft was indeed impressive, but a Blackbird reconnaissance aircraft built at such a high cost was not really invincible.

It has indeed never been shot down and is a legendary reconnaissance aircraft.

However, its high maintenance costs, operating costs, manufacturing costs, etc. forced it to choose to retire.

Moreover, during its service, twelve aircraft crashed due to hardware defects.

Each plane costs 2 billion US dollars, and twelve planes cost 24 billion US dollars. This amount of money is definitely not a small amount.

Therefore, when designing an aircraft, it is necessary to consider the R&D cycle, weapons and equipment development trends, etc., and select the best solution through optimized combination to finally determine the conditions and performance standards for the overall development of the aircraft.

Second, the scheme design stage.

Scientific research units need to coordinate the requirements of their own technical capabilities and those of the user units, and determine the technical solution standards and performance parameters through a demonstration environment.

The third is the detailed design and production preparation stage. This stage requires the preparation of detailed drawings based on the plan, determining what materials to use and how to install the parts, as well as manufacturing, assembly, and a series of tests to ensure the operation of each system policy.

It hasn't even reached the test flight stage, let alone the subsequent production stage, so developing an aircraft is not a simple task.

The project that Wang Duoyu has now established is used to optimize and solve technical demonstration problems in aircraft design.

Use modern computers to design aircraft, design a simulation software on the computer to design the aircraft, build the overall model of the aircraft, air intake model, engine model, etc., and then use the software's built-in geometry engine, solver, mesher, post-processor, non-mesh solver, tetrahedral mesh generator and climbing solver to carry out technical demonstration.

Take the tetrahedral mesh generator and climbing solver as an example. They are mainly aimed at problems such as high Mach number compressible flow in the aerospace field. Although the climbing solver designed by Wang Duoyu now is only applicable to a limited range of problems, it can be optimized and adjusted in the future, including the introduction of server architecture, domain decomposition parallel capabilities, and pressure-based control volume finite element method.

This control volume finite element method can solve the incompressible flow problem.

"Furthermore, I have already designed an auxiliary geometry in the proposal, which requires a stepped treatment in the boundary curve area."

After Wang Duoyu finished speaking, Jiang Boju's indifferent smile turned into a very serious expression, and Fan Honggeng and others even frowned.

Because according to Wang Duoyu's statement, this software is indeed extraordinary and is of great help to aircraft design.

The meaning is also very unusual.

(End of this chapter)