加装尾压浪板单体复合船型运动预报研究

Research on motion prediction of a hybrid monohull with a stern flap

为改善单体复合船型静水阻力性能,在传统单体复合船型基础上在尾部加装尾压浪板,可以改善其静水阻力性能,同时其耐波性能也得到提升.对加装尾压浪板的单体复合船型开展纵向运动预报研究,先后采用切片法进行理论预报,分别用二维RANS方法和三维RANS方法计算船体剖面及尾压浪板水动力系数,RANS方法计算组合附体和尾压浪板的升力系数.通过与模型试验结果比较表明,采用的预报方法可以用于加装尾压浪板单体复合船型纵向运动预报.

In this paper, the stem flap was fixed on the stern of a traditional hybrid monohull for better resistance performance. The purpose of the stern flap was to improve the ship s resistance performance while also improving the seakeeping performance. The longitudinal motion of a hybrid monohull fitted with a stern flap was predicted. The strip method was used, and the Reynolds averaged Navier-Stokes （RANS） method was applied for hydrody- namic calculation of the sections and stern flaps. The comparison between the calculation results and model test re- sults indicate that the method presented in this paper is suitable for longitudinal motion prediction of a hybrid mono- hull with stern flaps.