中文摘要：

为了观察舵对桨叶表面压力分布以及桨后尾流场的影响,以B4-55桨和展弦比为1.0的NACA0020的流线型舵为算例,采用计算流体力学方法分析了桨舵干扰的水动力特性.为了提高网格质量,计算域被分为包含螺旋桨的旋转域、包含舵的静止域以及除二者之外的静止域3部分,并采用不同的网格策略对其进行离散.离散方程用模型求解,旋转域与静止域之间的相对运动通过MRF技术模拟,并利用交界面技术实现数据传递.分析了不同进速系数下桨舵干扰的规律以及舵攻角对螺旋桨的推力、转矩的影响,研究了流场的速度以及压力分布.数值结果和试验结果的比较表明,采用的计算模型和离散方法能够得到准确的计算结果.

英文摘要：

In order to observe the effect ol rudder on the pressure distribution ol the propeller surface and the wake flow field behind propeller,with B4-55 propeller and NACA 0020 streamline rudder that the span-chord ratio was 1.0 as the calculation cases, this paper adopted computational fluid dynamics （ CFD） technique to analyze the hydrodynamic properties of the interaction between propeller and rudder. To improve the quality of grids, the computational domain was divided into three regions,rotational region containing the propeller, sta-tionary region containing the rudder and the remaining stationary region. In addition,different meshing strate-gies were used to discretize them. The discretized equations were solved with K-w turbulent model. The relative motion between the rotational domain and the stationary domain was simulated by Motion Reference technique （MRF） ,and the data transfer was realized by interface technique. The paper analyzed the hydrodynamic in-teraction between the propeller and rudder at different advancing velocity coefficients and the effect of the attack angle of the rudder on the thrust and torque,discussed the speed of flow field and pressure distribution. The comparison of the numerical results and the experimental results shows that the accurate results can be ob-tained by the present numerical model and discretizing strategy.