A supercavitating torpedo

Abstract

The invention discloses a supercavitation torpedo. The torpedo adopts a gas turbine engine, a steering gear device driven and controlled by a motor, gas nozzles uniformly arranged along the inner circumference of the ventilating bowl wall, and other devices; using a gas turbine as power, it can realize The high-speed movement and ultra-long stroke of the heavy-duty thermal power torpedo can realize the speed change or depth change of the torpedo in a wide range. The front compartment of the present invention is provided with an exhaust gas gathering cabin, so that the exhaust gas produced by the engine is collected here and discharged through the ventilation bowl at the front end, and gas nozzles are evenly distributed on the ventilation bowl, so that the supercavitation formed on the outside of the supercavitation torpedo is more compact. The uniform and stable gas surround makes the supercavitation formed on the outside of the supercavitation torpedo more uniform and stable, thereby greatly reducing the resistance of the torpedo to advance and increasing the speed and range of the torpedo.

Description

【Technical field】 [0001] The invention belongs to the field of underwater supercavitation navigation, and in particular relates to a supercavitation torpedo. 【Background technique】 [0002] The faster the vehicle sails underwater, the velocity of the liquid flowing around the object will increase accordingly, and its pressure will decrease according to the laws of fluid mechanics. When the pressure is lower than the critical pressure of water, the water will change from liquid phase to gas phase, forming water vapor bubbles, which helps to reduce the navigation resistance of the vehicle. The number of bubbles produced by natural cavitation is limited, not dense and uneven, and cannot completely wrap the underwater vehicle, and its size, size and thickness cannot be adjusted, so the drag reduction effect is difficult to control accurately. In order to achieve the ideal drag reduction effect, the generation of air bubbles must be quantitatively controlled. At present, the ma...

AI Technical Summary

Problems solved by technology

For example, the invention patent with the publication number CN103926051A proposes a supercavitation vehicle model with a built-in steering gear. The built-in steering gear cannot realize the automatic switching of the two rudder shafts synchronously rotating in the same direction and synchronously rotating in different directions, and the operation is complicated.

On the other hand, the ventilation device of the traditional supercavitation torpedo includes a ventilation bowl and a gas nozzle, which requires high airtightness in assembly, is difficult to manufacture, and the controllability and unevenness of the gas entering the supercavitation are poor.

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