Investigation on hull-propeller-rudder interaction by RANS simulation of captive model tests for a twin-screw ship
Investigation on hull-propeller-rudder interaction by RANS simulation of captive model tests for a twin-screw ship
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双螺杆船自留模型试验 RANS 模拟研究船体-螺旋桨-舵相互作用
DOI：
10.1016/j.oceaneng.2018.05.035
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发表时间：
2018-08
影响因子：
5
通讯作者：
Feng Wang
中科院分区：
文献类型：
--
作者：
Hai-Peng Guo;Zao-Jian Zou;Yi Liu;Feng Wang
采用CFD方法对双桨船舶的船体-螺旋桨-舵相互作用进行了研究。基于MMG模型中的相关模块，考虑了螺旋桨侧向力和非对称矫流效应，分析了螺旋桨和舵在机动过程中的水动力性能。以ONR滚转式船模为研究对象，采用RANS方法对自航试验、舵力试验、圆周运动试验和静态漂移试验进行了模拟。由计算的水动力和力矩得到了船体、螺旋桨和舵之间的相互作用系数，以及螺旋桨侧向力和舵法向力模型。计算得到的模型参数与已有的实验数据吻合较好。给出了船尾周围的速度场和舵面上的压力分布，以便更深入地了解船舶运动和螺旋桨载荷对舵性能的影响。利用所得到的水动力模型对回转圆周试验进行了模拟。仿真轨迹和运动量、动态量的时程与已有的试验数据和其他CFD结果吻合较好，表明了基于CFD的双桨船舶船体-螺旋桨-舵相互作用数值模拟方法的有效性。
The hull-propeller-rudder interaction of a twin-screw ship is investigated by using CFD method. The hydrodynamic performances of propeller and rudder during maneuvers are analyzed based on the relevant modules in MMG model, with the propeller side force and asymmetric flow-straightening effect being taken into account. Taking the ONR tumblehome ship model as the study object, self-propulsion test, rudder force test, circular motion test, and static drift test are simulated by using RANS method. The interaction coefficients among the hull, propeller, and rudder, as well as the models of propeller side force and rudder normal force are obtained from the computed hydrodynamic forces and moments. The obtained parameters in the modules show reasonable agreement with the available experimental data. The velocity field around the stern and the pressure distribution on the rudder surface are presented to provide deeper insight into the effects of ship motion and propeller load on the rudder performance. The turning circle test is simulated using the obtained hydrodynamic modules. The simulated trajectory and time histories of kinematic and dynamic quantities show good agreement with the available experimental data and other CFD results, indicating the validity of the CFD-based modelling method for hull-propeller-rudder interaction of twin-screw ships.
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