水下潜器系统中导管盘面流场分布与螺旋桨推力特性关联性分析

摘要

采用多重滑移网格技术构建水下潜器系统转艏摆动的水动力计算模型。研究了在水下潜器系统中不同转艏状态下，导管盘面处流场速度分布及压力分布对螺旋桨推力特性的影响。计算结果表明：螺旋桨盘面轴向诱导速度的变化对其推力特性起到了决定性作用，而径向速度、周向速度的变化对其影响甚微；螺旋桨叶上的压力差随着盘面半径、盘面圆周角变化而发生变化；导管螺旋桨产生的推力分布，大都集中在桨叶的导边处。%A numerical model of an underwater vehicle system in swing motion is established with the multi sliding mesh technique. By means of the established model, the effects of disk lfow ifeld distributions and disk pressure distributions on the thrust behaviors of propeller are investigated. The results from the numerical research indicate that the axis induced velocity variations on the propeller disk play a decisive role in the thrust performances of the ducted propeller; while the circumferential and radial induced velocity variations have little inlfuences on the thrust performances; the pressure difference on the propeller disk varies with the radius and circumferential angular changes; the thrust distributions on the propeller disk concentrate mainly on the leading edges of the propeller blade.