螺旋桨四象限水动力性能数值模拟及应用

在螺旋桨数值模拟领域里,敞水桨四象限(前进中正车、前进中倒车、后退中进车、后退中倒车)的水动力性能研究几乎是空白。本文从桨的几何构建,网格生成,第一、四象限和第二、三象限的不同求解模式及流场特征,第二、三象限推力系数曲线拐点及相应的环流涡,进行了数值模拟和分析。对桨四象限的应用,以制动机动为例进行探讨。

The research on numerical simulation of propeller's hydrodynamic performance in four quadrants

The propeller’s hydrodynamic performance in four quadrants is very important research in the field of maneuverability and rapidity.The paper presents the numerical simulation of the four quadrant hydrodynamic performance of the propeller in open water.The generation of 3D model of propeller is studied and realized.And analysis the calculations from different simulation models and characters of flow field in second and third quadrant,to inflexions of corresponding thrust coefficient curve and circumfluent eddies in first and fourth quadrant.Take brake for example,paper discusses the application of the propeller’s hydrodynamic performance in four quadrants.