Research on Added Resistance in Short Crested Irregular Waves and Bow Form of Water Line

Abstract

In this paper authors propose the practical method to estimate the mutual relation between the added resistance in short crested irregular waves and the horizontal bow form of full ships. The simplified estimated method of the mean added resistance is proposed based on the short wave length assumption and the new representation of bow form of full ships is introduced with Bezier curve. The mutual reration between the new representation of bow form and added resistance in short crested irregular waves is expressed. By using the Bezier curve and the pressure integration on the hull, side force and turning moment are obtained by the same method as added resistance. The consideration on optimum bow water line form of full ships is shown with this method.