The invention relates to a novel combined vortex fin eliminating device of a pod propeller and a design method thereof, and the novel combined vortex fin eliminating device is arranged on a pod and ischaracterized by comprising a thrust fin and a cross tail fin. The design method comprises the steps of obtaining flow field information; primarily designing a thrust fin; determining the optimal size of the thrust fin; primarily designing a cross tail fin; determining the optimal size of the cross tail fin; and determining the optimal matching size of the combined fin. According to hydrodynamicperformance data of an actual nacelle and a propeller, adverse effects of trailing vortexes of the nacelle propeller are reduced, the influence of lateral force of rotation of the propeller on a nacelle structure is weakened, the adaptability of the nacelle propeller to different hydrodynamic environments is improved, the stability of a nacelle propelling system is improved, and the navigation cost is reduced on the whole; the stations of the thrust fins are flexibly adjusted, attack angle parameters are changed, and the hydrodynamic performance coefficient of the nacelle under the specific working condition is increased; and similarly, the telescopic cross tail fin can effectively improve the hydrodynamic performance in the rotation of the nacelle.
本发明涉及一种吊舱推进器新型组合式消涡鳍装置及其设计方法,该装置安装在吊舱上,其特征在于:包括推力鳍和十字尾鳍;设计方法包括:获取流场信息;推力鳍初步设计;确定推力鳍最佳尺寸;十字尾鳍初步设计;确定十字尾鳍最佳尺寸;确定组合鳍最佳匹配尺寸;本发明中根据实际吊舱和螺旋桨的水动力性能数据,降低吊舱推进器尾涡的不利影响,减弱因螺旋桨旋转对吊舱结构的侧向力影响,提升了吊舱推进器对不同水动力环境的适应能力,增加吊舱推进系统稳定性,在整体上减少航行成本;同时通过灵活地调整推力鳍的工位,改变攻角参数,提高特定工况中的吊舱的水动力性能系数;同样,伸缩式十字尾鳍能有效改善吊舱回转中的水动力性能。
Novel combined vortex fin eliminating device of pod propeller and design method thereof
一种吊舱推进器新型组合式消涡鳍装置及其设计方法
2020-06-02
Patent
Electronic Resource
Chinese
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