小型タンカーの肥大度シミュレーション

概要

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An efficient hull form design needs to incorporate prediction methods that will be able to predict the influence of hull form modification on the ship performance. This paper presents a simple prediction method for propulsive factors - form factor, wave-making resistance coefficient, thrust deduction coefficient and effective wake coefficient - which relate directly to the hull form. Some flow-field parameters which have influence on the propulsive factor are proposed on the basis of the result of double -model flow calculation, 3-dimensional boundary layer calculation, TUMMAC-IV code and propeller-hull interaction calculation around the hull form. Regression equations to predict propulsive factors are made by using some parameters and model test results in a towing tank.. By the present regression equation, predicted results for propulsive factors of small-sized tanker that change the fullness in steps are shown. On basis of calculation results, a new hull form that increase the fullness is designed. A new hull form ship is confirmed the same performance of the parent ship by the towing tank test and the present calculation result.
社団法人日本船舶海洋工学会の論文
2002-03-25