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Super cavitation method and device with introduced hot steam for underwater high speed navigating equipment

A technology of superheated steam and superheated steam, applied in transportation and packaging, hull, hull design, etc., can solve problems such as helpless natural cavitation, and achieve the effect of increasing the speed of the aircraft body and reducing frictional resistance

Inactive Publication Date: 2006-10-18
SHANGHAI UNIV
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Problems solved by technology

but the introduction of air does not contribute to natural cavitation

Method used

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  • Super cavitation method and device with introduced hot steam for underwater high speed navigating equipment

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Embodiment Construction

[0017] Preferred embodiments of the present invention are described in detail as follows in conjunction with accompanying drawings:

[0018] The method of introducing superheated steam into the underwater high-speed aircraft body to cause supercavitation is to use heating to vaporize water into superheated steam, and then pass the superheated steam into the cavitation around the aircraft body to promote the natural environment around the high-speed aircraft body. Cavitation and natural cavitation are transformed into supercavitation, and supercavitation with good stability is obtained, thereby greatly reducing the frictional resistance on the surface of the underwater aircraft body and increasing the speed of the aircraft body. The heating method is a heating method using high-temperature gas, or solid fuel, or liquid hydrogen+liquid oxygen, electricity, microwave or electromagnetic heating. The temperature of the superheated steam is 0.01-1000 degrees Celsius higher than the ...

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Abstract

The present invention relates to super cavitation method and device with introduced overheat steam for high speed underwater navigating equipment. Overheat steam produced through heating water with fuel gas or other fuel is guided into natural bubbles so as to form stable bubbles around the navigating equipment. The bubbles are refreshed constantly, and the underwater navigating equipment progresses at high speed inside bubbles without direct contact with water. The present invention has greatly reduced navigation resistance and raised navigation speed.

Description

technical field [0001] The invention relates to a method and a device for reducing resistance of a high-speed underwater vehicle, in particular to a method and a device for supercavitation caused by passing superheated steam into an underwater high-speed vehicle. Background technique [0002] The power required to propel an underwater vehicle is proportional to the cube of its speed, that is to say, to double the speed of a traditional torpedo in water, its propulsion power must be 8 times the original. Therefore, the speed of traditional torpedoes is usually difficult to break through 60 knots (about 30m / s), and most of them are around 25-30 knots. Just when scientists were racking their brains to increase the speed of torpedoes, they unexpectedly discovered a very effective method, which is to use the originally "unpopular" cavitation. The first generation of "Blizzard" successfully developed in 1977 by the former Soviet Union (the Moscow Institute of Applied Fluid Mechan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B1/38
CPCY02T70/10
Inventor 黄典贵
Owner SHANGHAI UNIV
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