浮体式海洋構造物に作用する定常抗力の簡易推算法について

概要

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This paper deals with the estimation method of the steady drag forces acting on various kinds of offshore structures. Most of these are consist of the blunt-shaped element structures such as a column, a lower-hull and bracing. If we knew the basic data of steady drag coefficients for such simple element structures, it would be possible to estimate the total drag force using those data. In this paper we show haw to combine basic data to estimate the total drag force considering the Reynolds number effect, three dimensional effect, mutual interaction effect and surface roughness effect of each element. The developed method has been validated by comparing it with model experiments of two kinds of structures, column footing type and semi-submersible type structure. Moreover, the applicability of present method for the case of full-scale offshore sturcture has been verified by the towning test of the prototype offshore structure POSEIDON.
社団法人日本船舶海洋工学会の論文
1997-09-04