Underwater vehicles have developed various appendage structures due to their functional diversity require-ments.These appendages may change the characteristics of external flow field while meeting specific functions.For an un-derwater vehicle,this paper uses numerical calculation methods to analyze the influence of appendage structure on the resist-ance of the underwater vehicle.On this basis,several kinds of diversion appendage structures are designed,and the effects on drag reduction of each model are obtained.The drag of the optimal solution can be reduced by 19.7％.The distribution of pressure,velocity and three-dimensional vortex structure of the flow field are analyzed in detail through visualization meth-ods.Through the above research work,the characteristics of the external flow field of the appendage structure of underwater vehicle are clarified,which provides a useful reference for the design and optimization of the appendage structure of under-water vehicle.
关键词
水下航行器/附体结构/数值计算/流场特性
Key words
underwater vehicle/appendage structure/numerical calculation/flow field characteristics
维普
万方数据