典型尾翼布局的类乘波体气动与流场特性研究

Numerical Investigation of Aerodynamic Characteristics and Fuselage-tail Interference for a Waverider-derived Vehicle with Typical Tail Layouts

通过数值模拟方法,深入对比研究了高超声速情况下类乘波体机身带单垂尾、双垂尾、三垂尾3种典型尾翼布局的气动特性,并揭示了机身对尾翼的干扰流动机理。研究表明:从全机的气动性能角度分析,双垂尾布局气动特性最优;从尾翼的纵向气动性能角度分析,单垂尾布局下尾翼的气动特性较好。最后揭示了机身对垂直翼、倾斜翼和水平翼的干扰流动机理。文中的研究结果能够对高超声速飞行器的尾翼布局设计提供有价值的参考。

Based on RANS solver, the hypersonic flow around waverider-derived vehicle has been numerically simulated to find out the aer- odynamic characteristics of three typical tail layouts, furthermore, the interference mechanism between fuselage and tails was revealed. Ac- cording to the simulation results, by analyzing the aerodynamic performance of the whole vehicle, it shows that the aerodynamic perform- ance of twin vertical tails layout is better than the other two. By analyzing the longitudinal aerodynamic performance per unit area projected to the horizontal direction, the single vertical tail layout is better than the other two layouts. Finally, the interference flow mechanism between fuselage and vertical tail, oblique tail, horizontal tail is revealed. Conclusions of this paper, are of some quantitative and qualitative value to hypersonic vebicle＇s tail layout design.