THE STRUCTURE FOR SUPPRESSION OF RUDDER GAP CAVITATION INCEPTION AND THE VESSEL THEREOF

摘要

A rudder structure suppressing the gap cavitations and a ship using the same are provided to prevent the erosion or deformation of a rudder horn and a rudder wing. A rudder structure suppressing the gap cavitations comprises a concave curved surface(110a) of a rudder horn(102) and a convex surface(110b) of a rudder wing(104). The above surfaces are formed in the opposing location of the rudder wing and rudder horn. The concave curved surface of the rudder horn and the convex surface of the rudder wing have the fixed radius of curvature at the overall height. The concave curved surface radius of curvature of the rudder horn is a primary radius. The convex surface radius of curvature of the rudder wing is a second radius. The concave curved surface of the rudder horn and the convex surface of the rudder wing are separated with fixed interval in the overall height.