近几年来，上海交通大学船模试验池对简易导管螺旋桨进行了多种方案的系列试验研究。
In recent years, several types of the ducted propellers with simplified duct profile have been systematically tested by the Shanghai Jiao Tong University ship model basin.
在破冰船推进性能方面，主要采用导管螺旋桨作为主要推进器。
In the propulsion performance of the icebreaker, mainly use the ducted propeller as the main propulsion.
对导管螺旋桨进行优化设计的分析与探讨，建立优化数学模型，通过实例说明其可行性。
It's analyzed and inquired into optimality design of duck propeller. Mathematical models are set up. It shows it's practicable through example.
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