螺旋桨/船体粘性流场的整体数值求解

螺旋桨和船体是相互作用的,孤立地对螺旋桨或船体流场进行数值模拟均无法有效地对它们的相互影响进行研究.本文采用周向平均的混合面处理方法,实现了螺旋桨/船体流场的整体计算,计算结果和试验数据进行了比较,表明该方法能很好地模拟螺旋桨和船体之间的相互影响,从而揭示了真实螺旋桨和船体之间相互干扰的内在规律.本文研究结果为研究螺旋桨和船体相互影响提供了更加精确和实用的研究手段.

Integral calculation of viscous flow around ship hull with propeller

It is most important for ship and propeller designers to have a good understanding of the interaction between the hull and the propeller.In this paper,CFD (Computational Fluid Dynamic) method was used to predict flow fields around ship with propeller.Using a Mixing Plane Method,the real propeller geometry is considered in the computation.The calculated KT and KQ are in good agreement with test results.The predicted wake behind propeller also shows favorable agreement with measured one.The method developed in this paper will be a practical tool for studying propeller/hull interaction.