直進翼性能に対する表面粗さ影響の実験と数値計算

概要

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The effects of surface roughness on a hydrofoil performance are investigated in this paper. Model experiments using NACA2410 hydrofoil were carried out in the model basin of KUMM. The several artificial roughness were made on the hydrofoil surface by the use of paper rasps or particulate materials. Numerical calculations were also carried out combining with the 2-D boundary layer model and the 3-D lifting surface vortex lattice method. At first, a displacement thickness of boundary layer was calculated on the 2-D hydrofoil. Secondly the performance calculation was carried out on the 3-D hydrofoil of which section was considered to be canged apparently by the boundary layer displacement thickness. The calculation results are compard with the experimental results. The good results are obtained.
社団法人日本船舶海洋工学会の論文
2001-09-25