斜航する船に働く造波横力について : 斜航角に関する非線型影響

概要

論文の詳細を見る
This paper describes the characteristics of the wave making lateral force and the resistance acting on the obliquing ship hull, with attention to their dependency on the drift angle. Firstly, the behavior of a solution of the low speed wave making theory for the body with small slenderness ratio is studied in the two dimensional problem for a floating horizontal elliptic cylinder as an example. The effects of the lifting flow with circulation on the wave generation are discussed supposing a flow field in which the circulation is attached around a obliquing vertical elliptic cylinder as an example. Next, a numerical solution of the wave making lateral force and the resistance are obtained under the formulation of the low speed wave making theory for the floating prolate spheroid in the case that slenderness ratio is 0.25. It is pointed out that a new non-linear effect on the drift angle, which is not explained by an asymptotic solution showed in the authors' previous paper, appears in the phenomena that the phases of the hump-hollow of the curves of the wave making lateral force and the resistance plotted on the base of the Froude's number are shifted toward the low speed side as the drift angle increases.
社団法人日本船舶海洋工学会の論文
1988-03-22