基于CFD的船舶导管螺旋桨的水动力性能研究

Hydrodynamic Performance Prediction of Ducted Propeller Based on CFD

运用计算流体力学软件对黏性流场中导管螺旋桨的水动力性能进行了计算研究,模拟了导管螺旋桨在不同进速系数下的推力系数、转矩系数、导管螺旋桨表面压力分布等。首先利用UG及Gambit建立计算模型,然后在FLUENT软件中利用滑移网格(Moving Mesh)的方法计算导管螺旋桨在敞水状态下推力以及转矩。最后将计算结果与模型试验值进行比较,CFD计算结果与模型试验结果吻合。

Viscous flow of ducted propeller on hydrodynamic performance with CFD,and simulate the thrust coefficient,torque coefficient,surface pressure distribution of ducted propeller in different propeller advance coefficient are Studied.Firstly,the calculated models in UG and GAMBIT are established,and then the Moving Mesh method is adopted to simulate thrust and torque of ducted propeller using FLUENT in open water.The results of CFD are compared with model test results and found that the results of CFD consistent with the model test.