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Under water flying-body electromag netic heating cavitation apparatus

An underwater vehicle and cavitation technology, applied in the direction of hull, hull design, transportation and packaging, can solve the problem that the speed of the vehicle is difficult to further increase significantly, and achieve the effect of increasing the speed of the vehicle and reducing frictional resistance.

Inactive Publication Date: 2007-08-29
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

However, despite the formation of supercavitation, the cavitator "1" of the head of this supercavitating vehicle is always in direct contact with the water, and is subjected to a great pressure from the water, and the direction of this pressure is opposite to the direction of motion, making the vehicle It is difficult to further increase the speed significantly

Method used

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  • Under water flying-body electromag netic heating cavitation apparatus

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Embodiment Construction

[0012] A preferred embodiment of the present invention is described as follows in conjunction with accompanying drawing:

[0013] Referring to Fig. 1, the electromagnetic heating cavitation device of the underwater vehicle is to install a cavitator 1 composed of magnetic molecular materials on the head of the vehicle 2, and a high-frequency alternating electromagnetic field generator is also installed in the vehicle 2 device 4. The cavitator 1 composed of magnetic metal material cuts the alternating magnetic field lines, and the magnetic metal molecules generate alternating currents, that is, eddy currents. The eddy currents make the molecules move at high speed and irregularly, and the molecules collide and rub against each other to generate heat energy, and the temperature rises rapidly. When the power is sufficient, the temperature of the cavitator 1 can be maintained between 100 and 1000 degrees, and the water will be vaporized when it comes into contact with the high-temp...

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Abstract

The invention relates to an underwater navigating electromagnetism heating cavitation device. It installs a cavitating device formed by magnetic molecule material on the head of the navigating device, and installs a high frequency alternating electromagnetic field generator in navigating device. When the generator works, the magnetic molecule material would generate eddy current to make molecule moving disorderly in high speed. The molecule would collide and fractionize to generate heat, and the temperature would rise rapidly to achieve vaporizing temperature. The bubble would be formed around the navigating device to decrease the surface friction resistance and improve moving speed.

Description

technical field [0001] The invention relates to a cavitation device for wading underwater vehicles, in particular to an electromagnetic heating cavitation device for increasing the speed of underwater vehicles such as torpedoes. Background technique [0002] At present, the power required to propel navigation 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 Mechanics and the Ukrainian Institute of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B1/38
CPCY02T70/122Y02T70/10
Inventor 黄典贵
Owner SHANGHAI UNIV
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