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Mucus drag reduction device for underwater vehicle

An underwater vehicle and drag reduction device technology, applied in transportation and packaging, ships, hydrodynamic characteristics/hydrostatic characteristics, etc. Guaranteed drag reduction effect

Active Publication Date: 2016-09-21
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the method of viscous drag reduction is mainly used in internal flow pipelines such as oil and heating, and has not been applied to the shipbuilding field.

Method used

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  • Mucus drag reduction device for underwater vehicle
  • Mucus drag reduction device for underwater vehicle
  • Mucus drag reduction device for underwater vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0043] The invention provides an underwater vehicle mucus drag reducing device, see attached figure 1 , including: gas cylinder 1, double-body piston cylinder 2, flow control valve 3, controller 4, joint 5, mucus, gas pipe and liquid pipe;

[0044] Its peripheral equipment is an underwater vehicle;

[0045] See attached image 3 , the parallel section of the underwater vehicle shell has one or two circles of mucus release holes 6 uniformly distributed along its circumferential direction; the axis of the mucus release holes 6 is inclined 30 degrees to the tail of the underwater vehicle; and the The number, size and shape of the mucus release holes 6 should consider the flow field distribution near the surface of the underwater vehicle, so that the mucus flowing out from the mucus release holes 6 can cover most of the surface of the underwater vehicle; if ...

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Abstract

The invention discloses a mucus drag reduction device for a underwater vehicle, which belongs to the technical field of ship drag reduction and efficiency increasing. The mucus drag reduction device for the underwater vehicle comprises an air cylinder, a piston cylinder, a flow control valve, a controller, a joint, mucus, an air pipe and liquid pipes. The cavity of the piston cylinder is divided into two parts through a piston; the cavity on one side is connected with the air cylinder through the air pipe; the mucus is within the cavity on the other side; the cavity, full of the mucus, of the piston cylinder is connected with an inlet of the joint through the liquid pipe with the flow control valve; more than one outlets of the joint are respectively connected with mucus releasing holes in a underwater vehicle housing through the liquid pipes; and the controller is connected with the flow control valve. According to the invention, the drag reducing mucus releasing speed can be automatically adjusted according to the navigational speed of the underwater vehicle so that the drag reducing mucus uniformly and persistently cover most external surface of the underwater vehicle to increase the maximum navigational speed of the underwater vehicle and energy consumption can be also reduced at equivalent navigational speed.

Description

technical field [0001] The invention belongs to the technical field of drag reduction and efficiency enhancement of ships, and in particular relates to a mucus drag reduction device for an underwater vehicle. Background technique [0002] In the field of ships, rapidity has always been one of the important performance indicators. The rapidity index of a ship generally refers to the maximum possible speed that the ship can achieve when it moves in a straight line at a constant speed in still water under the antagonism of thrust against resistance. The advantages and disadvantages of rapidity will affect the usability and economy of ships to a certain extent for civilian ships, and are closely related to improving the combat performance of ships for military ships. Therefore, each ship is included in the design task book Just give a clear rapidity index. When the thrust of the ship is fixed, in order to improve the rapidity index, various means are required to reduce the tot...

Claims

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Application Information

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IPC IPC(8): B63B1/32B63B1/34
CPCB63B1/32B63B1/34B63B2001/345Y02T70/10
Inventor 陈伟王磊张昊王文博庞杰钱家昌陈虹
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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