“DSI？ Inlet design that belongs to the technology of the future? Can this be used on the twin-engine multi-role fighter we work with? Since it is the technology of the future, does Northrop master this technology again? ”

Since Northrop proposed to go to the DSI intake, Yang Hui naturally would not refuse, if this thing can really be studied and understood on time and put into practice, it will naturally be more suitable than the Garette intake.

When he first had the idea of preparing to develop a new generation of multi-role fighters based on the F18, Yang Hui had various ideas about the aerodynamic shape of this aircraft, and the DSI was the best in all respects.

But in the end, it was given up by Yang Hui, because the design of this air inlet is too difficult, and it is absolutely impossible to win this thing with the current technical ability of the Republic alone, and the design of the DSI air inlet is different from the traditional air inlet design.

The traditional inlet design is relatively simple, the designer after a small amount of calculation, after taking out the preliminary design, you can blow the air directly, with the data obtained by the wind tunnel blowing, it can almost be said that you have mastered this technology.

However, the design of the DSI inlet is different, it not only requires wind tunnel blowing, but also needs to have strong computer-aided design capabilities.

The entire DSI inlet is pre-compressed by a bulge to achieve the air flow, and the surface layer of all evils is removed. Complex irregular surface design alone is much more difficult to design than a traditional rectangle.

Human beings can draw accurate rectangles and circles with their bare hands without relying on computers, but they can quickly draw irregular surfaces with their bare hands. I don't think I've seen it before.

This is where you can see the complexity of the surface design, its simple rectangle. Compared to the circle, it is indeed much more complicated.

Therefore. Computer-aided design is necessary for the design of this bulging air inlet formed by curved surfaces, and this computer-aided design is not yet achievable by a simple personal computer.

Computer-aided DSI inlet design is not only about drawing curved surfaces, but also about simulating high-speed airflow, and simulating some regular but complex and tedious repetitive wind tunnel tests.

This kind of work is not possible except for supercomputers, which can perform tens or tens of billions of calculations per second.

According to the basic data of the wind tunnel test, and then through the supercomputing change. The calculation power of the state can quickly test the compression capacity of each type of surface to the airflow from tens of thousands of irregular surfaces, one by one, and select the most suitable one.

If you insist on using a wind tunnel test. It doesn't use computer aid, but in theory it is certainly possible. But there are thousands of bulge shapes, not to mention whether there is time to complete the test one by one, the cost of this wind tunnel test alone is astronomical.

These questions are all conclusions reached by the previous face-to-face Republic when developing the DSI air intake, and Yang Hui naturally knows a rough idea.

Now the Republic wind tunnel equipment is available, which can be regarded as meeting a hard condition.

But when it comes to supercomputers, it really can only be hehehe, in this year. The supercomputing of the republic is not as good as the stream. When the republic wants to use supercomputing, it can only spend a high price and take what it wants to calculate to the United States imperialism and the book.

It doesn't matter if you are involved in national security and trade secrets, you must take off your pants in oil exploration, meteorological forecasting, and scientific research and exploration. Let others see it clearly.

In such a supercomputing environment, how could Yang Hui expect to do the design of the DSI inlet channel, and he had no choice but to give up the DSI inlet design.

But now there is a turnaround. Northrop actually threw out the DSI air intake, and the leak that originally made Yang Hui worry about the mouse trap did not exist.

So what else is there to say. Now that the Yankees know about the DSI intake, there is no need to worry about leaks.

According to the information revealed by Northrop. The current ATF program in the United States, which requires high speed and high maneuverability, has abandoned the DSI intake tract. Then there is no burden to cooperate with Northrop to do the DSI inlet this time, and it will not affect the final ATF project results anyway.

Yang Hui knew something ahead of his time, so naturally he didn't have anything to worry about, and directly asked Northrop about the most critical point.

Fortunately, Northrop is not talking nonsense, since he has the confidence to say that he wants to use DSI, he naturally still has two brushes.

"DSI inlet technology is very advanced, and we at Northrop have only done some rough research, and the specific problems have to be deepened in the follow-up project!"

As he spoke, he took out a few more pieces of information from the cabinet and handed them to Yang Hui for review.

"This is the result of our initial exploration, and according to the characteristics of this air intake, it was found that there must be a complete wind tunnel supporting equipment, as well as a high-performance computer."

Sure enough, Northrop has two brushes, and he can see the difficulties in the development of this thing at once.

Yang Hui can't be cowardly at this time, everyone in Northrop has drawn out the way, and it's time to give a quasi-letter.

"I can understand the difficulties in the design of this air intake, and we naturally have no way to supercomputer in Southwest Science and Industry, so we can only pay more from Northrop."

To put it bluntly, there is a yes, and if you can't, you can't, and it is clear that you want to throw the problem of supercomputing to Northrop.

Northrop has no excuse to refuse, after all, this is all a fact, to use the DSI intake, Northrop can only pay more.

As the first-tier defense contractor in the United States, Northrop's hardware technology level is very high, and supercomputers are standard, so it is not too simple to do some project calculations.

"No problem, we at Northrop are responsible for all the tedious calculations, and when we need to use supercomputers, we at Northrop give the DSI project the highest priority."

Northrop can't be happy now, whoever called him encountered this mess, it's too late to regret it now, the only way is to make a mistake, and in the end, if he becomes Northrop, he will go to a glorious future.

As Yang Hui thought, one of the two major technical points developed in the DSI air inlet project, the supercomputer has been settled, although this supercomputer will not take too long 89 years to say goodbye, but with these two years, the general things can be calculated, and the rest is the wind tunnel.

"We in the southwest science and industry can coordinate to China's most advanced wind tunnel test equipment, I believe that Northrop now has no suitable reason to coordinate to the United States wind tunnel back, so we can be considered complementary in the development of new air intakes."

This is really a high-sounding reason, if it weren't for Yang Hui who made the Galette air intake thing, Northrop wouldn't have done anything about Rausch's DSI air intake at this time, even if he wanted to study it, he wouldn't be as sneaky as he is now.

silently despised Yang Hui in his heart, a guy who got cheap and sold well, and couldn't wait to shut up Yang Hui immediately. If there is a regret medicine in this world, Northrop will definitely kill and will not go to the southwest science and industry to muddy the water, but it is too late.

"Speaking of the right, the development of the DSI inlet does need to be coordinated by you wind tunnel testing, for your aerodynamic attainments, I still believe that Southwest Science and Industry is a very capable company."

Saying something meaningless is the end, which means that the selection of the new aircraft air intake is over, and the red hornet is gradually moving towards another development path, and what will it look like when it is finally finalized?

"In this case, we really don't need to use the shock boost intake, we can see that this DSI intake is simply tailor-made for our new aircraft, and we are very satisfied that Northrop is really a good international teammate!" (To be continued.) )