【摘要】 为了研究混合吊舱对转桨的回转操纵性能,对一艘集装箱船模型分别配置混合吊舱对转桨和普通舵桨,并使用体积力模型模拟桨对船体的作用。采用RANS方法和重叠网格技术,对两者在静水中的操舵回转运动进行数值模拟。比较两者回转运动特征参数、受力及流场特性。计算结果表明,配置混合吊舱对转桨的船舶较普通桨舵能在更短时间内完成90°转艏与180°回转;减小混合吊舱对转桨前、后桨的推力比,可使船舶以较小的战术直径完成回转,操纵性能较普通桨舵优越。普通桨舵流动分离现象较吊舱桨严重,吊舱桨大部分区域的涡脱落得到抑制,其振动和噪声性能优于普通舵。该项工作可为混合吊舱对转桨的操纵性能研究提供参考。更多还原

【Abstract】 In order to study maneuvering performance of turning motion of the hybrid contra-rotating propeller(CRP) podded propulsion, a container ship equipped with hybrid counter-rotating propeller podded propulsion and ordinary rudder respectively is taken as the research object. RANS method and overset grid technology are adopted, and the body-force propeller model is applied to simulate the influence of the propeller on the ship. Turning motion is numerically simulated in still water. Parameters, forces, and flow field characteristics of the turning motion are analyzed. The results show that a ship equipped with the hybrid CRP podded propulsion is able to complete the turning of 90 degrees or turning of 180 degrees in a shorter time than an ordinary rudder. By changing the thrust ratio of the forward propeller and the aft propeller of the hybrid CRP podded propulsion, the ship can complete turning motion with a smaller tactical diameter. Maneuvering performance of the hybrid CRP podded propulsion is better than an ordinary rudder. Fluid separation on ordinary rudder is severer than on the hybrid CRP podded propulsion. Vortex shedding is suppressed in the most area of the pod propeller, thus which vibration and noise performance is better than normal rudder. The work in the paper may provide a reference for the research on the maneuvering performance of the hybrid CRP podded propulsion.更多还原