Resistance reduction-propulsion integrated structure of manually-ventilated supercavitating torpedo

Abstract

The invention provides a resistance reduction-propulsion integrated structure of a manually-ventilated supercavitating torpedo. A traditional torpedo structure is changed, a cavitation bubble generator on the head portion of the traditional structure is omitted, and the head portion of the torpedo is made to be a plane; an engine jet pipe located on the tail portion of the torpedo is omitted, and four small engine jet pipes are arranged at the front end of the torpedo and evenly distributed in the upper direction, the lower direction, the left direction and the right direction; the included angle between the central axis of each jet pipe and the central axis of the torpedo is 10-15 degrees; by the adoption of the structure, the situation that the movement form is instable due to the fact that the front portion and the rear portion of the torpedo bear thrust at the same time is avoided, and meanwhile uniform thrust can be provided. The resistance reduction-propulsion integrated structure of the manually-ventilated supercavitating torpedo can be applied to low-speed movement and can also achieve high-speed movement; during low-speed movement, natural cavitation bubbles cannot be formed on the plane of the front portion of the torpedo, the engine jet pipes inject air so that a ventilation cavitation bubble can be formed nearby, the resistance of the portion covered with the cavitation bubble is reduced, the resistance reduction effect is achieved, and a propulsion system and a resistance reduction system of the torpedo are combined.

Description

technical field [0001] The invention relates to an underwater propulsion device. Background technique [0002] Supercavitation is a physical phenomenon. When an object moves faster than 100 knots in water, bizarre water vapor bubbles form in the rear, creating a "supercavitated" fluid. The current common problem of supercavitating torpedoes is about the control of torpedoes. In the existing torpedo structure, the nozzle is located at the tail of the torpedo. Resistance, the tail is pushed forward, and the objects under force at both ends are in a critically stable state of motion. There is a certain chance of deviation from the course or loss of control. During the rapid formation of supercavitation, the torpedo will instantly lose stability and control sex. Contents of the invention [0003] The object of the present invention is to provide a drag reduction-propulsion integrated configuration of an artificially ventilated supercavitation torpedo that can reduce resista...

AI Technical Summary

Problems solved by technology

The current common problem of supercavitation torpedoes is about the control of torpedoes. In the existing torpedo structure, the nozzle is located at the tail of the torpedo. Resistance, the tail is pushed forward, and the objects under force at both ends are in a critically stable state of motion. There is a certain chance of deviation from the course or loss of control. During the rapid formation of supercavitation, the torpedo will instantly lose stability and control sex

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