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A free launch hydrofoil experimental device

An experimental device and hydrofoil technology, which is applied in the field of marine ship engineering, can solve the problems of near-free surface hydrofoil structure and dynamic characteristics research, and achieve the effect of simple structure, low cost, easy disassembly and movement

Active Publication Date: 2021-01-15
INST OF MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the research work on the cavitation flow near the free surface is based on the rotating body, and there are relatively few studies on the cavitation flow field structure and dynamic characteristics of the hydrofoil near the free surface.

Method used

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  • A free launch hydrofoil experimental device
  • A free launch hydrofoil experimental device
  • A free launch hydrofoil experimental device

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Experimental program
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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical methods in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative labor achievements belong to the protection scope of the present invention.

[0038] It should be noted that if there is a directional indication (such as up, down, left, right, front, back, etc.) in the embodiment of the present invention, the directional indication is only used to explain the relationship between the components in a certain posture. Relative positional relationship, movem...

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Abstract

The embodiment of the invention relates to a free-launching hydrofoil experimental device. The device comprises a launching part, a transverse wing, a connecting assembly and a hydrofoil assembly, oneend of the launching part is connected with the middle part of the transverse wing; wherein the two ends of the transverse wing are connected with the connecting assembly, the connecting assembly isdetachably connected with the hydrofoil assembly, and the hydrofoil assembly generates up-and-down symmetrical lifting force in the navigation process through the connecting assembly, so that the stability of the free-launching hydrofoil experimental device is ensured. Therefore, research on cavitation flow around the hydrofoils under the boundary of the free surface is realized through the hydrofoils which are symmetrical up and down, and the problem that the hydrofoils take off due to poor stability of a device in an existing test can be effectively solved.

Description

technical field [0001] The embodiments of the present invention relate to the field of marine ship engineering, and in particular to a free launch hydrofoil experiment device. Background technique [0002] In order to safeguard the increasingly severe situation of maritime rights and interests, small, high-speed surface vehicles have gradually become an important part of the development of the future maritime strategic system. New-concept surface vehicles mainly use hydrofoils and gyratory bodies as underwater submersible components, such as figure 1 As shown in , buoyancy or lift is generated to lift the hull, thereby achieving the effect of reducing wave-making resistance and viscous resistance. Then, when the underwater structure sails at a speed of 40 knots (about 20m / s) or higher, the water in the surface low-pressure area usually undergoes a phase transition to produce cavitation that evolves in an unsteady state. The formation of local short-term high pressure on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M10/00G01M9/00G01M9/08B63B71/00
CPCG01M9/00G01M9/08G01M10/00
Inventor 黄仁芳张珍王一伟黄晨光
Owner INST OF MECHANICS CHINESE ACAD OF SCI
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