Reverse water jet ventilation bubble assist high speed water inlet impact reduction load mechanism

Abstract

The invention belongs to the technical field of high speed water inlet of moving objects, and particularly relates to a reverse water jet ventilation bubble assist high speed water inlet impact reduction load mechanism. The mechanism includes a high pressure water pump, a water tank, a liquid pressure regulating valve, a liquid pipeline, a liquid flow meter, a high energy water jet hole, a high pressure gas cylinder, a gas pressure regulating valve, a gas pipeline, a gas flow meter, a gas chamber, a vent hole, a moving body, a tail fin, a nozzle and a fairing; the fairing is screwed to a moving body head, a plurality of gas holes are uniformly distributed in the circumferential direction of the moving body, the gas holes are communicated with the annular air chamber inside the casing, thehigh pressure gas cylinder supplies air to the gas chamber through a gas path, the gas regulating valve and the gas flow meter are arranged on the gas path, the gas chamber is connected with the highenergy water jet hole at the top of the moving body, the high pressure water pump is connected to a high energy water jet hole at the top of the moving body through the pipeline arranged with the liquid pressure regulating valve and the liquid flow meter, the high pressure water pump is connected to the water tank, and the tail fin and the nozzle are located at the tail of the mechanism.

Description

technical field [0001] The invention belongs to the technical field of high-speed water entry of moving objects, and in particular relates to a mechanism for assisting high-speed water entry to reduce impact load by reverse water spraying and ventilating cavitation cells. Background technique [0002] When the moving body enters the water at high speed, excessive impact loads are generated due to sudden changes in the density of the medium. Excessively high impact loads will cause the equipment in the moving body to fail, and even cause the structure of the moving body to be damaged. In order to avoid this situation, the high-energy jet is used to squeeze the water surface, and a gas cavity is formed to wrap the surface of the vehicle during the water entry process, thereby reducing resistance and playing the role of buffering and guiding the water entry. The cavitation technology in underwater drag reduction has been the focus of attention of various countries since the las...

AI Technical Summary

Problems solved by technology

This situation is similar to the formation process of air bubbles in water, but due to the mass of the vehicle body and the large area in contact with the water at the front, the negative impact of the water entry load is fatal

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