鱼尾舵水动力性能研究

Prediction of Performance of the Shilling Rudder behind a Propeller

本文提出了一种计算带制流板的鱼尾舵在螺旋桨尾流中水动力性能的方法。舵的水动力及其对周围流场的影响用面元法计算，螺旋桨性能及尾流场通过无限叶数的简易螺旋桨理论来预估，而舵上下制流板的影响则应用升力面理论的涡格法来计算。舵、制流板、螺旋桨的干扰作用以迭代方法求得。由于采用了面元法，舵的水动力性能及表面压力分布的计算更为精确。同时，升力面理论可较好地反映制流板对舵及螺旋桨的影响，因此，本方法能精确地预报鱼尾舵在螺旋桨尾流中的水动力性能。本文对螺旋桨尾流中鱼尾舵的表面压力分布及操纵性能进行了计算和研讨。

The paper presents a new method for predicting the hydrodynamic performance of the shilling rudder behind a propeller. The hydrodynamics of the rudder they is calculated by the panel method,the influence of the plates is calculated by the vortex fattice method, and the performance of the propeller is predicted by the simple propeller theory. Then the interaction among the rudder body, plates and propeller is determined by an iterative procedure- The pressure distribution on rudder surface and the hydrodynamic per formance of the shiiling rudder are discussed in the paper.