Anti-spattering bow fin of high-speed ship

Abstract

The invention discloses an anti-spattering bow fin of a high-speed ship. The anti-spattering bow fin is arranged at the two sides above the water line of the bow of the high-speed ship; the longitudinal view of the anti-spattering bow fin is a streamline structure with closed wings; an inclined angle Alpha is formed by the closed wing closing the bow and the water line plane and the closed wing deviating the bow is parallel to the water line plane. The horizontal view of the anti-spattering bow fin is a streamline closed wing with a main wing bent downward into a side wing; the main wing closing the bow and the side wing form a water inlet; the horizontal width of the anti-spattering bow fin is reduced progressively from the bow to the direction of the stern; the tail end of the side wingis hooked internally to the ship side; and the main wing deviating the bow and the tail end of the side wing form a water spray outlet. The anti-spattering bow fin has low cost and convenient manufacture, can uplift the body of the high-speed ship when in sailing, improves the sailing posture of the ship, reduces soaking area of the ship body, and further reduces the total resistance of the ship body. The anti-spattering bow fin fully utilizes the energy of spattering flow, plays the role of assisting propulsion to the high-speed craft and achieves the purpose of saving energy of the high-speed craft.

Description

technical field [0001] The invention relates to a hull structure of a high-speed ship, in particular to a fin device arranged on both sides above the bow waterline of the high-speed ship, and belongs to the technical field of high-speed ships. Background technique [0002] When the ship is driving at high speed or in sea conditions greater than level 5 (there is a high wave crest, the wave top with spray occupies a large area on the wave crest, and the wind begins to cut off the spray on the wave crest.), the bow of the hull is higher than the water surface Then there can be wave slamming during the fall, or localized high pressure on the surface of the hull. In the process of slamming, a rapid "splash" phenomenon will be produced. This kind of splash flow not only makes the bow part bear a huge force, but also in the bilge part (the part where the ship side plate and the ship bottom plate meet), the boundary layer of the water flow is easy to separate to form a bilge vorte...

AI Technical Summary

Problems solved by technology

This device has an adverse effect on the space arrangement and overall propulsion efficiency of the high-speed boat, in addition to increasing the cost of manufacturing and use

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