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Ventilating anti-drag support column structure for supercavity surface vehicle

A pillar structure and surface boat technology, applied in the direction of ships, hydrodynamic characteristics/hydrostatic characteristics, hulls, etc., can solve the problem of low drag reduction effect, achieve the goal of reducing resistance, avoiding unstable navigation status, and preventing deformation Effect

Active Publication Date: 2019-07-19
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the drag reduction effect of the navigation body is low. Therefore, if the supercavitating surface high-speed craft with a pillar structure wants to further reduce drag and improve efficiency, it is necessary to consider reducing the frictional resistance on the surface of the pillars.

Method used

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  • Ventilating anti-drag support column structure for supercavity surface vehicle
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  • Ventilating anti-drag support column structure for supercavity surface vehicle

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Embodiment Construction

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] The specific names of each number in the attached drawings are as follows: 1-pillar shell; 2-front-end cavitator; 3-front-end vent; 4-middle cavitator; Groove; 8-pillar internal framework; 9-pillar internal wire groove connected to the submerged body; 10-cavitation generated by ventilation.

[0026] The present invention provides a ventilation strut structure that can achieve a further drag reduction effect compared with the prior art, by arranging vent holes and cavitators on both sides of the strut, and performing auxiliary ventilation to generate cavities to further reduce the frictional resistance on the strut surface . Because the underwater submerged body of the supercavitating surface boat produces cavitation, and considering that the cavitation of the pillar cavitation and the cavitation of the underwater submerged bod...

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Abstract

The invention provides a ventilating anti-drag support column structure for a supercavity surface vehicle. The ventilating anti-drag support column structure comprises a support column and a ventilating cavitation generating device, the ventilating cavitation generating device comprises gas-holder tanks and cavitators, the gas-holder tank and the cavitator are arranged on the two sides of the support column correspondingly, the gas-holder tanks are provided with ventilating holes, and the gas-holder tanks communicate with ventilating pipelines, and the ventilating holes are formed behind the reverse flow surfaces of the cavitators; the shape of the support column is divided into and upper part and a lower part, the upper part support column has a 45-degree inclined angle and is in an A shape, and the lower part support column is perpendicular to the water surface and is in an H shape; and the front edge line and the rear edge line of the support column form a splay shape outwards. According to the ventilating anti-drag support column structure, the cavitators are arranged on the support column, thus the surface of the support column is covered with cavitation, resistance of the surface of the support column can be greatly reduced by reducing the wet area on the surface of the support column due to the fact that resistance of an object in water is 800 times larger than resistance in air, and thus good anti-drag effect is achieved; and higher speed of the supercavity surface vehicle is achieved, and more fuel is saved in the same main motor power.

Description

technical field [0001] The invention relates to a pillar structure, in particular to a ventilated drag-reducing pillar structure for a supercavitating surface boat, and belongs to the technical field of ship drag reduction. Background technique [0002] In recent years, the application of supercavitating drag reduction technology on high-speed surface vehicles has received extensive attention. bubbles, so that the surface of the underwater submersible is covered by the entire cavitation, so that the underwater submersible is no longer in direct contact with the water, reducing the resistance of the underwater submersible during navigation, thereby increasing the speed and reaching a navigation speed of 100 knots. Ordinary speedboats only have a speed of about 30 knots. Compared with traditional speedboats, this high-speed boat not only has a higher speed, but also has better stability. [0003] However, since this supercavitating surface boat has a pillar structure, when t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B1/38
CPCB63B1/38B63B2001/382Y02T70/10
Inventor 安海任航高文杰孙鹏阎朝一尹瑰巧
Owner HARBIN ENG UNIV
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