吸气式高超声速机体/推进一体化飞行器数值和试验研究

Numerical and experimental study of airbreathing hypersonic airframe/propulsion integrative vehicle

发展吸气式高超声速技术是实现可持续高超声速飞行(尤其是在大气层以内)的重要途径。吸气式高超声速飞行器为了获得良好的气动-推进性能,必须采用机体/推进一体化设计。笔者发展了针对一体化飞行器的气动力和推进力的划分体系和计算方法,发展了内外流数值计算软件。研究了机体/推进一体化设计的平头形高超声速飞行器在进气道关闭条件下的气动性能,并进行了试验验证;数值研究了进气道打开和发动机工作条件下一体化飞行器的气动-推进性能;研究了机体和推进系统的不同部件对飞行器气动-推进性能的贡献。

Airbreathing hypersonic propulsion technology （AHPT） is a very important approach to realize sustainable hypersonic flight, especially within the atmosphere. In order to achieve optimal aero-propulsion performance, it is necessary to use airframe/propulsion integration method to design airbreathing hypersonic performance and flow field structure of the baseline model （the blunt-tipped hypersonic vehicle with the inlet closed）. Taking the model with closed inlet as the baseline, it researches the effect of opening the inlet and the engine＇s working on the vehicle＇s aero-propulsive performance. The effect of vehicle＇s different components to the aero-propulsive performance is investigated.