翼身融合水下滑翔机外形设计与水动力特性分析

为了提高水下滑翔机的水动力性能，本文将航空航天领域先进的翼身融合布局引入到水下滑翔机外形设计中，并对其水动力性能进行研究与分析。首先，对比3种具有代表性的水下滑翔机常用壳体形状的几何参数，选用扁平椭球体作为翼身融合水下滑翔机壳体的基本形状；在此基础上，设计出翼身融合水下滑翔机的三维模型；最后，采用计算流体力学（ CFD）的方法对翼身融合水下滑翔机进行仿真模拟并分析其水动力性能，结果表明，采用翼身融合布局的水下滑翔机，其水动力性能得到显著提高。

Shape design and hydrodynamic characteristics analysis of the blended-wing-body underwater glider

In order to improve the hydrodynamic performance of underwater glider, research was done on the shape design and hydrodynamic characteristics analysisof the Blended-Wing-Body (BWB) underwater glider.Firstly, the flat ellipsoid shell, as the basic shape of the fuselage of the BWB underwater glider, was selected by comparing the geometrical parameters of the common shell shape of the three conventional underwater glider. Then, based on the flat ellipsoid body, the shape of BWB underwater glider was design. Finally, simulation has been done through computing fluid dynamics (CFD) for five typical designtypes, and the results show that the hydrodynamic performance of the underwater glider with the blended-wing-body configuration is significantly improved.