中文摘要：

对螺旋桨建模及网格划分并在Star-CCM软件里进行水动力性能计算,根据桨的尾流场提取出每个舵叶剖面的扭曲角度、设计的扭曲舵.数值计算了不同舵角下扭曲舵和普通舵所受到的横向力、转矩,以及舵吸力面的压力分布,分析扭曲舵相比普通舵的舵力性能优势及抗空化性能.计算结果表明,扭曲舵的受力状态相对普通舵有明显改善,提高了舵的空化的初始航速,同时对船的直航性和舵的操纵性能有提升.

英文摘要：

The hydrodynamic performance of propeller is analyzed by Star-CCM software.The skew rudder is designed according to the angle of each blade profile in propeller wake field.Transverse force,torque and rudder pressure distribution on the suction surface of skew rudder and ordinary rudder with different rudder angle are calculated to analyze the rudder force performance and cavitation resistance of the skew rudder.The calculation results show that the stress of the skew rudder has improved significantly compared with ordinary rudder.And the initial speed of the rudder cavitation has increased.Besides,the skew rudder improves the direct manipulation performance and steering performance of ship.