斜行する没水回転楕円体並に水上船舶の横抵抗について

概要

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Many researches about the wave resistance of symmetrical body in the direction of advance on the surface of water have been made by many various authors, therefore the nature of longitudinal resistance is quite clear theoretically. However, from the practical viewpoint of turning and course stability of ships, the lateral resistance is thought to be an important problem. On the contrary, we have never found the theoretical study of lateral resistance. So the author extended the theory of wave resistance to the case of unsymmetrical body in the direction of advance and studied theoretically the lateral resistance caused by wave-making. Namely, the general formula of longitudinal and lateral resistance of any surface density of doublets F (h, o, f), with a velocity c and holding any attack angle Θ, are as follws. [numerical formula] where [numerical formula] Applying the distribution corresponding to the submerged spheroid and ship to the above formulae, the author introduced the formula of lateral resistanee and made a numerical calculation of some practical examples. In the end using the results of the above numerical calculation, the author tried to coanider about the essential nature of lateral resistance, with special reference to the wave pattern and some interesting results were obtained.
社団法人日本船舶海洋工学会の論文