Development of design method for high performance propeller considering ship stern wake

提出了一种优化船尾尾迹螺旋桨性能的方法。在本方法中，螺旋桨特性的非定常计算方法被用来评估船尾尾迹中的螺旋桨性能。优化过程采用实数编码遗传算法。采用三种不同的螺旋桨性能目标函数进行优化。每种情况下都得到了性能优于原螺旋桨的改进型螺旋桨。在本文的计算中，发现均匀流中的螺旋桨效率与船尾尾迹中的螺旋桨性能呈正相关。

A method to optimize propeller performance in ship stern wake has been developed. In the present method, unsteady calculation method of propeller characteristics is used for evaluation of propeller performance in ship stern wake. Real-coded genetic algorithm is used for optimization procedure. Three different objective functions about propeller performance were used for optimization. Improved propellers that have superior performance comparing to original propeller were obtained in each case. In the present calculation, positive correlation between propeller efficiency in uniform flow and propeller performance in ship stern wake was found.