A Study on the Bilge Keels : Part 4. On the Eddy-Making Resistance to the Rolling of a Ship Hull

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概要

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• The eddy-making resistance due to the bilge keels was investigated in the previous papers. The effect of the ship form on the eddy-making resistance to the rolling of a ship hull is discussed in the present paper from the results of the systematic two dimensional model experiments. It is found that the eddy-making resistance to the rolling of a ship hull is large in the case of a rectangular section as much as the resistance due to the bilge keels and decreases rapidly as a radius of bilge circle increases, and that the resistance to a parallel middle body of a usual ship becomes negligibly small but its resistance to a fore or after section of a ship becomes a considerable amount.Next, the eddy-making resistance to the rolling of a ship hull is found to follow approximately the law of comparison by Froude from the results of the similar rhombic mod el experiment, and a method of approximate estimation of the resistance to the rolling of an actual ship is obtained.

• 社団法人日本船舶海洋工学会の論文

著者

• 田中 紀男

  Department Of Naval Architecture College Of Engineering University Of Osaka Prefecture

関連論文

• A Study on the Bilge Keels (Part 2)
• A Study on the Bilge Keels
• A Study on the Bilge Keels : Part 4. On the Eddy-Making Resistance to the Rolling of a Ship Hull
• A Study on the Bilge Keels
• A Study on the Bilge Keels : Part 3. The Effect of the Ship Form and the Bilge Keel Size on the Action of the Bilge Keel

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