吸气式高超声速飞行器动力学特性分析

Dynamics Analysis of Air-breathing Hypersonic Vehicle

吸气式高超声速飞行器是下一代单级入轨和高超声速巡航研究的重点飞行器。其机身/发动机组合对飞行器动力学影响不同于常规飞行器,不能通过常规的气动分析方法对整体飞行器进行气动力计算分析。提出了利用激波膨胀波理论计算飞行器上表面的气动力,利用二维流场中的牛顿激波理论计算飞行器前体下表面的气动力,采用一维定常流模拟发动机内部工作流场,膨胀波理论计算飞行器后体气动力的吸气式高超声速飞行器整体气动分析方法。仿真分析验证了本方法的可行性和正确性。

Air-breathing hypersonic vehicle(AHV) has been the next generation single stage to orbit vehicle and hypersonic cruise vehicle.The frame/engine integration is different from the conventional vehicle,the method for the aerodynamics of the conventional vehicle is not fit for this vehicle.In this paper,a method of aerodynamic analysis for air-breathing hypersonic vehicle has been provided.Two-dimensional Newtonian theory was utilized to characterize the aerodynamic pressure distribution on the forebody,whereas...