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

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 vehicle.This paper puts forward an analyzing system and a calculating method for the aerodynamic force and thrust of integrated vehicle.It has developed the software for internal and external flow computation and CFD method for integration research.Combining computation with experiment,this paper studies the aerodynamic 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.