3次元表面効果翼のRaNS計算による特性評価

概要

論文の詳細を見る
In the proximity of the water surface, aerodynamic wings show considerable high lift/drag ratio. This effect is the basis of Wing-In-Surface-Effect-Ship (WISES) which supports its hull in a very low altitude from the water surface by a system of aerodynamic wings. Wind tunnel investigations of the wing-in-surface-effect require simulation of the water plane condition and a number of test cases ranging in both angle of attack and altitude. These are no easy tasks. In recent years, computational fluid dynamics of three-dimensional flow around complex geometries became popular. This enables us to examine the flow around complex configurations of WISES on a mid-range computer and this compensates for the difficulty of experiments. In this paper, aerodynamic characteristics of three-dimensional wings in the surface effect are investigated by a commercial CFD application. Tested configurations are two wing sections of Clark-Y and S-shaped wing with and without endplates. All wings have an aspect ratio of 1. Numerical results and visualization of the flow field show the effectiveness of endplates and the S-shaped wing section in three-dimensional wings in the surface effect.
社団法人日本船舶海洋工学会の論文