Chapter 66

Angel Beach Resort, ferra Beach Hotel.

Open roof, large swimming pool.

Jiang Cheng swam back and forth comfortably in the pool, then came to the surface and lay back on the beach chair.

I picked up the coconut juice and took a few mouthfuls.

Then, Jiang Cheng took out his mobile phone and opened the island tycoon app.

With the successful promotion of flying cars, the value of feicui island has directly exceeded the $300 billion mark!

In this way, the building blocks and other modules of the system are all unlocked, which makes Jiang Cheng feel great.

However, at this time, Jiang Cheng didn't care about other things. Instead, he focused on a black technology store that suddenly appeared.

The so-called black technology store, just like its name, is full of technologies or products that can be achieved by non-human knowledge and scientific level at present. Every item taken out can cause world shaking.

However, there are only a few technologies and technologies in the system store at this time, including "zombie" Internet of things, "slug" super glue and so on.

Jiang Cheng casually looked at it a few times, but he was not very interested, so he focused on the last product.

Supercavitating thruster!

Seeing this, Jiang Cheng's eyes are shining like searchlights.

He has heard about this technology for a long time, but it has always existed in science fiction. Even though some developed countries are studying it, there is still a long way to go before it can be put into practice.

The so-called "supercavitation" is actually a physical phenomenon.

When the velocity of the object in the water exceeds 185km / h, a strange large-scale steam ditch will be formed at the tail of the object, wrapping the part of the object in contact with water. At this time, the medium in contact with the object will change from water to steam, so the resistance will be greatly reduced, only 1 / 800 of that of water, which is called "supercavitation phenomenon".

There are three ways to form supercavitation.

One is to increase the speed of the vehicle.

Second, reduce the flow field pressure.

Third, at low speed, the method of artificial ventilation is used to increase the internal pressure of the gun.

The most difficult way to achieve the former is to form a supernatural bubble. The most difficult way is to form a supernatural bubble.

The "supercavitating technology" is to use the third method to artificially release some gas around the moving object in the water, so as to greatly reduce its resistance.

Theoretically, torpedoes made with supercavitating technology can reach a maximum underwater speed of 1549m / s, even more than three times the speed of sound in the standard state!

It's the most abnormal!

Just imagine, if we vigorously develop and manufacture this kind of supercavitating fish, what else in the world can intercept the attack of underwater torpedo!!

This technology is absolutely the nightmare of all moving objects on and under water!

Of course, this is only in theory, and there are also great technical problems, which have not yet been put into practice.

However, this can be said to be a development goal, and also the development direction of future ships.

The problem of water resistance has always been the biggest problem restricting the development of shipping industry.

And supercavitation technology, let the world see the bright future, as long as we can solve this problem, then it will definitely help the development of the shipping industry, and even defeat the aviation industry from now on.

Behind this technology, there are amazing development prospects.

Jiang Cheng's eyes radiate a fiery light. He feels that he has a chance to take off.

There are many application scenarios of supercavitation technology, including all kinds of ships, ships and underwater equipment. If we can put this technology into practice, it can even change the world to some extent!

Thinking of this, Jiang Cheng can't wait to click on the introduction of supercavitating thruster and start browsing.

Ten minutes later, Jiang Cheng moved his eyes.

It has to be said that supercavitating thruster, a black technology product, is really abnormal.

According to the above introduction, this product can be directly applied to the existing ships, which can greatly improve the ship's moving speed. Of course, some power systems and operating systems also need to be adjusted accordingly, which will make the cost of the ship increase linearly.

But even so, Jiang Cheng is very satisfied.

You know, in the modern shipbuilding industry, the most difficult technical index to improve is the speed.

Of course, to some extent, this is related to the marine engine industry, but more importantly, it is the problem of reducing underwater resistance.

Therefore, the current shipbuilding industry, in order to improve the speed, the vast majority of methods are to reduce the weight of the ship, that is, through the development of some lightweight composite materials to reduce the resistance of navigation in the water, in order to achieve the purpose of improving the speed.

However, the effect of improving speed by this method is extremely limited, and the cost is not low.The appearance of supercavitating thruster solves this problem well, which is absolutely the existence of subversive technology for the contemporary shipbuilding industry.

Jiangcheng fingertip light point, three-dimensional model of supercavitating thruster, clearly displayed in front of us, at the same time, a series of related technical parameters, also appeared.

The supercavitating thruster in front of us is a huge shuttle structure with a long convex nozzle on the head. The surface is a kind of dark black coating, which looks very sci-fi.

[name]: supercavitating thruster

[Nature]: special for ships

[maximum speed]: 142 knots

[cost]: 19.5 million US dollars

[time consuming]: none

[evaluation]: the first generation concept supercavitating thruster, the core of future ship power system.

Seeing the cost of the supercavitating thruster, Jiang Cheng was shocked.

It has to be said that the cost of supercavitating thruster is extremely high.

As far as he knows, the cost of an ordinary carrier is about $30 million to $5000. Only a super large natural gas carrier like LNG costs more than $100 million.

However, the cost of this propeller in front of us is as high as 20 million US dollars, and this does not include the matching power system and operating system.

It seems that the so-called black technology is really not for nothing.

If this technology is applied in Jiangcheng's Shipyard in the future, the cost of the ship will be at least doubled.

However, it seems to be worthwhile to trade twice the cost for more than three times the speed.

When Jiang Cheng's eyes were on the speed of the supercavitating propeller, he suddenly looked excited.

In the modern shipbuilding industry, it's very difficult to increase the speed by even one knot, but the supercavitating propeller can reach 142 knots, which is really a miracle!

142 knots, that is 263 km / h, and this speed can almost catch up with the speed of the land high-speed railway!