一様な流れの中に置かれた錨鎖の形状と張力に関する研究-I : 錨鎖の流体的特性について

概要

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When buoys and other floating objects are placed in the ocean where they are easily effected by tides, it would be great help if the values of nessesary length and withstandable tention of the chain cable among other values could be easily calculated. That would make it much easier to plan and design such objects. In this experiment, chain cables were tested in a circulating water channel in various forms (mooring, towing, etc.), the forms and tension observed and then, at each inclination angle θ, the drag D_θ and lift L_θ were measured. The drag coefficient C_<Dθ> and lift coefficient C_<Lθ> were calculated using the following formulae. D_θ=1/2<C_<Dθ>ρAU^2> L_θ=1/2<C_<Lθ>ρAU^2> The aim of this experiment is to find a rough formula to calculate these forces.
社団法人日本航海学会の論文
1980-01-15