双尾船舵角优化的阻力和自航数值模拟  

Resistance and Self-Propulsion Numerical Simulations of Rudder Angle Optimization on a Twin-Rudder Vessel

作　　者：李勇跃 张立 邢磊 范笑行 LI Yongyue;ZHANG Li;XING Lei;FAN Xiaohang(Shanghai Merchant Ship Design and Research Institute,Shanghai 201203,China;Shanghai Ship and Shipping Research Institute Co.,Ltd.,State Key Laboratory of Maritime Technology and Safety,Shanghai 200135,China;Shanghai Ship and Shipping Research Institute Co.,Ltd.,Key Laboratory of Marine Technology Ministry of Communications,Shanghai 200135,China)

机构地区：[1]上海船舶研究设计院,上海201203 [2]上海船舶运输科学研究所有限公司水路交通控制全国重点实验室,上海200135 [3]上海船舶运输科学研究所有限公司航运技术交通行业重点实验室,上海200135

出　　处：《船舶工程》2025年第1期30-37,共8页Ship Engineering

基　　金：工业和信息化部高技术船舶科研项目(CJ01N20)。

摘　　要：[目的]为节省能耗、减小阻力、降低功率,通过计算流体力学(CFD)方法对设计航速下不同舵角进行计算。[方法]基于SST k-ω湍流模型和流体体积(VOF)方法,对舵角为0°~8°时舵的阻力、升力、力矩、表面压力和轴高附近舵剖面的速度矢量进行分析。采用刚体运动(RBM)方法捕捉螺旋桨旋转时的真实受力状态,并对螺旋桨内旋状态下舵角为0°~6°时的外力、螺旋桨转速、推力、扭矩和桨/舵表面的流场分布进行分析。[结果]结果表明:当舵角为6°时,船+舵的阻力最小;当舵角为4°时,船+桨+舵的自航总功率最小;舵表面的动压力分布越均匀,阻力越小;船-桨-舵的相互影响导致船舶性能在不同舵角时发生变化。流场变化是造成该船阻力和自航性能变化的根本原因,合适的舵角能实现降低船舶航行阻力和收到功率的目标。[结论]研究成果可为船舶舵角优化提供一定参考。[Purpose]To save energy,reduce resistance,and lower power,different rudder angles are calculated at design speed using the computational fluid dynamics(CFD)method.[Method]Based on the SST k-o turbulence model and Volume Of Fluid(VOF)method,the drag,lift,torque,surface pressure,and velocity vector of the rudder profile near the shaft height are analyzed when the rudder angle is between 0o and 8°.Based on the Rigid Body Motion(RBM)method,the true force state of the propeller during rotation is captured,and the external force,propeller speed,thrust,torque,and flow field distribution on the propeller/rudder surface are analyzed when the rudder angle is between 0°and 6 in the internal rotation state of the propeller.[Result]The results indicate that:at the rudder angle of 6°,the resistance between the ship and the rudder is minimized;at the rudder angle of 4°,the total self propulsion power of the ship+propeller+rudder is minimized;the more uniform the distribution of dynamic pressure on the rudder surface,the smaller the resistance;the mutual influence of ship propeller rudder leads to changes in ship performance at different rudder angles.Flow field changes are the fundamental cause of changes in the resistance and self propulsion performance of the ship,and an appropriate rudder angle can achieve the goal of reducing the ship's navigation resistance and receiving power.[Conclusion]The research results can provide some references for optimizing the rudder angle of ships.

关 键 词：双尾船 舵角 阻力 自航 数值模拟 

分 类 号：U662.2[交通运输工程—船舶及航道工程]