浮体式海洋構造物に加わる流体力の推定法に関する実験的研究

概要

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Most of the floating offshore structure consists of blunt shaped elements such as, column, lowerhull and bracing. Viscous effects on the hydrodynamic force acting on the floating structure due to the vortex shedding from the edge of such elements are essential for estimating the hydrodynamic forces acting on the structure. To estimate hydrodynamic forces on an offshore structure experimental studies are therefore more important than the case of the ship for which the potential theory is useful and an experimental study is indispensable to design a floating structure because of its various combination of elemental members. In this paper an estimation method of the total steady and unsteady drag force coefficient of a floating offshore structure is developed. The drag coefficients of the floating offshore structures can be practically estimated with a sufficient accuracy by using existing study concerning Reynolds number-three dimensional-mutual interference effects for various shapes of the structure elements.
社団法人日本船舶海洋工学会の論文
1996-09-04