後方ステータ付きダクトプロペラのパネル法による単独特性計算

概要

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By fitting stator vanes behind a ducted propeller in order to improve the propeller efficiency, energy loss of rotational flow in the slipstream of the ducted propeller would be reduced. This paper shows a surface panel method to analyze the open-water characteristics of a ducted propeller with stator operating in axisymmetric uniform flow. The present method solves the steady problem between an impeller, a duct and a stator in an iterative manner taking account of each circumferentially averaged induced velocity. In order to verify the efficiency improvement for the stator designed by the present method and the calculation accuracy, the open water tests have been carried out. The open-water characteristics of a ducted propeller with stator calculated by the present method showed a better agreement with experimental data. The advantage of the designed stator for the ducted propeller was two percents up of the propeller efficiency at moderately load condition.
社団法人日本船舶海洋工学会の論文
1998-09-04