A RANS-based study of the impact of rudder on the propeller characteristics for a twin-screw ship during maneuvers
A RANS-based study of the impact of rudder on the propeller characteristics for a twin-screw ship during maneuvers
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基于RANS的双螺杆船操纵过程中舵对螺旋桨特性影响的研究
DOI：
10.1016/j.oceaneng.2021.109848
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发表时间：
2021-11
影响因子：
5
通讯作者：
Zao-jian Zou
中科院分区：
文献类型：
--
作者：
Hai-Peng Guo;Zao-jian Zou
船舶的螺旋桨性能与船舶的操纵性和主机安全密切相关。特别是双螺杆船舶，螺旋桨在船舶操纵过程中表现出复杂的特性。本研究采用CFD方法研究了双螺旋桨船舶操纵过程中舵偏转对螺旋桨特性的影响。以典型双螺杆船模DTMB5415为研究对象，利用RANS方法对舵力试验、静漂试验和转臂试验等一系列系留模型试验进行了模拟。通过尾部涡流结构和约束流线对操纵工况下尾部流场进行可视化和分析。将计算得到的作用在螺旋桨和舵上的水动力与现有的实验数据进行比较，验证了所采用数值方法的有效性。根据获得的螺旋桨盘处的标称尾流和叶片上的压力分布，进一步讨论了舵偏转对螺旋桨特性的影响。本论文是之前研究（Guo et al., 2020）的延伸，旨在更深入地了解双螺杆船在操纵过程中的螺旋桨特性。
The propeller behavior of a ship is highly related to ship maneuverability and main engine safety. Especially for a twin-screw ship, the propellers exhibit complicated characteristics during ship maneuvers. In this study, the impact of rudder deflection on the propeller characteristics is investigated for a twin-screw ship during maneuvers by using CFD method. Taking the typical twin-screw ship model DTMB5415 as the study object, a series of captive model tests, including rudder force test, static drift test and rotating arm test, are simulated by using RANS method. The flow field around the stern under the maneuvering condition is visualized and analyzed by the vortex structures and constrained streamlines around the stern. The computed hydrodynamic forces acting on the propellers and rudders are compared with the available experimental data, and the effectiveness of the adopted numerical method is verified. The impact of the rudder deflection on the propeller characteristics is further discussed based on the obtained nominal wake at the propeller disk and the pressure distribution on the blades. The present paper is an extension of the previous study (Guo et al., 2020), in order to provide a deeper insight into the propeller characteristics of a twin-screw ship during maneuvers.
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DOI：
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发表时间：
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期刊：
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