Ultra-high-speed water surface aircraft based on three-section type supercavitation hydrofoils

Abstract

The invention provides an ultra-high-speed water surface aircraft based on three-section type supercavitation hydrofoils. The ultra-high-speed water surface aircraft comprises a ship main body, a front hydrofoil and a rear hydrofoil are installed on the two sides of the ship main body respectively, the front hydrofoil comprises a horizontal flat wing with one end connected with the ship main body,an inclined wing connected with the flat wing and inclined towards the ship main body and a vertical wing connected with the inclined wing and perpendicular to the horizontal plane, and the verticalwing is located below the ship bottom of the ship main body; however, the flat wing span length of the rear hydrofoil is greater than that of the front hydrofoil; two jet engines are arranged on the ship main body between the two rear hydrofoils side by side; and a semi-submerged propeller is arranged at the tail part of the ship main body. The combined propulsion mode of the semi-submerged propeller and the turbojet engines is adopted, strong thrust can be provided for the water surface aircraft under different working requirements, the resistance of the front hydrofoil and the rear hydrofoilcan be reduced by adopting the supercavitation airfoil, the sensitivity of the navigation speed can be reduced by adopting the three-section hydrofoil structure, and the navigation stability can be effectively improved.

Description

technical field [0001] The invention relates to the field of ships, in particular to an ultra-high-speed water surface vehicle using a novel supercavitating airfoil as a lift component and based on a three-stage supercavitating hydrofoil. Background technique [0002] According to the law of ship resistance, the viscous resistance of a ship is proportional to the square of the speed, and the wave-making resistance is proportional to the sixth power of the speed. This means that the higher the speed, the greater the resistance to overcome. Furthermore, sailing resistance is closely related to the wetted surface area of ​​the vessel submerged below the water surface. The surface vehicle lifts the hull through the lift generated by the hydrofoil during navigation, reducing the wet surface area, thereby reducing viscous resistance and wave resistance, and has unique advantages in terms of speed and seaworthiness. [0003] At present, in terms of increasing the speed of the shi...

AI Technical Summary

Problems solved by technology

[0007] However, the above-mentioned schemes for achieving supercavitation drag reduction all use artificial ventilation, which requires additional cavitation generators, air compressors and other supporting equipment. The mechanism is complex, which increases the cost and redundant equipment.

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