A hydrofoil with a new supercavitating airfoil

A technology of supercavitation and hydrofoil boats, which is applied in the field of ships, can solve the problems of not meeting the working requirements of ships, affecting the aerohydrodynamic performance of hydrofoils, increasing the complexity of mechanisms, etc., achieving simple structure, increasing working range, and reducing tail The effect of edge vortex

Active Publication Date: 2021-04-09
INST OF MECHANICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when this scheme is applied to the existing common NACA hydrofoil structure, the increased cavitation at high speed will affect the aerohydrodynamic performance of the hydrofoil, and when applied to the existing supercavitating hydrofoil, it will The working efficiency at low speed will also be reduced, which cannot meet the working requirements of the ship at low speed
[0006] In addition, the technology of forming supercavitation through artificial ventilation requires the addition of additional ventilation devices, thereby increasing the complexity of the mechanism

Method used

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  • A hydrofoil with a new supercavitating airfoil
  • A hydrofoil with a new supercavitating airfoil
  • A hydrofoil with a new supercavitating airfoil

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Embodiment Construction

[0058] The specific structure and implementation process of this solution will be described in detail below through specific embodiments and accompanying drawings.

[0059] Such as figure 1 As shown, in one embodiment of the present invention, a hydrofoil boat 100 with a novel supercavitating airfoil is disclosed, which includes a ship main body 1, two symmetrical front hydrofoils 2 installed in the front section of the ship main body 1, and A tail hydrofoil 3 arranged at the stern.

[0060] Such as figure 2 As shown, the front hydrofoil 2 includes a horizontal flat wing 21 connected in sequence, an inclined wing 22 connected to the end of the flat wing 21 away from the ship body 1 and inclined downward, and a folded wing connected to the inclined wing 22 and inclined toward the ship body 1. The wing 23 and the flat wing 21 are NACA airfoils, the oblique wing 22 and the folded wing 23 are new supercavitation airfoils; the angle between the oblique wing 22 and the folded win...

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Abstract

The invention provides a hydrofoil boat equipped with a novel supercavitation hydrofoil, comprising a ship main body, a front hydrofoil installed at the front section of the ship main body, and a tail hydrofoil arranged at the stern, the front hydrofoil includes flat wings connected in sequence, and the oblique wing and folding wing of the new supercavitation airfoil; the tail hydrofoil includes the vertically installed NACA airfoil flap, and the new supercavitation airfoil short wing fixed horizontally on the lower end of the flap; the new supercavitation airfoil Bubble airfoil, including two pieces of suction surface and force surface connected at one end and open at the other end, and a contraction end connected with the open end. The NACA design method determines the profile. The hydrofoil boat of the present invention adopts the aero-hydraulic integrated front hydrofoil and the deep-immersion empennage with the novel supercavitation airfoil, so that the hydrofoil boat has good rapidity and high speed when sailing at high and low speeds. Stability, to achieve the effects of strong work adaptability, simple structure, reliable work, and cost-saving manufacturing.

Description

technical field [0001] The invention relates to the field of ships, in particular to a hydrofoil ship which adopts a novel supercavitation airfoil to reduce wave resistance and viscous resistance during navigation. Background technique [0002] With the continuous consumption of land resources, countries around the world regard the utilization and development of marine resources as an important strategy for social development, which puts forward an urgent demand for the development of high-performance ships. The resistance of a ship is closely related to the speed of the ship. Most of the hulls of traditional ships are immersed below the water surface, and the wet surface area is large, which increases the resistance of navigation. The viscous resistance is approximately proportional to the square of the speed, and the wave resistance is approximately proportional to the speed The sixth power of , so the improvement of the speed of traditional ships is greatly restricted. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B1/24B63B1/26B63B1/38
CPCB63B1/248B63B1/26B63B1/38B63B2001/382Y02T70/10
Inventor 王一伟黄仁芳支玉昌杜特专王静竹黄晨光
Owner INST OF MECHANICS CHINESE ACAD OF SCI
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