二重反転プロペラの研究(第1報) : 単独特性の計算法について

概要

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The Lerbs-Morgan's method is usually used to design contrarotating propellers. Since this method does not directly deal with the interaction between the propellers and a hull or a rudder, we may have an error in estimating the characteristics of the contrarotating propellers working behind a hull. Then we aim to establish finally the design method of the contrarotating propellers, including the interactions among the propellers, a hull and a rudder. As a first step of the study, we apply the simplified propeller theory in order to estimate the open-water characteristics of the contrarotating propellers. Through comparisons of the calculated and experimental results of the open-water characteristics and the velocity components around the two contrarotating propellers, we confirm that the simplified propeller theory is effectively applied to the contrarotating propellers.
社団法人日本船舶海洋工学会の論文
1987-08-25