Due to the aerodynamic and thermal elastic effect caused by the high speed and high altitude of the air-breathing hypersonic vehicle(ABHV), the traditional control system based on the pneumatic rudder surface is facing great challenge. In this paper a new fluidic thrust vector (FTV) method was proposed for replacing or compensating traditional pneumatic rudder control. The single expansion ramp nozzle of ABHV was selected as the research object. Firstly, the single expansion ramp nozzle is designed by the characteristic line method and the numerical simulation and performance analysis are carried out Secondly, the principle and feasibility of the thrust vector control of the single expansion ramp nozzle are studied. Based on this, the parameters of the fluidic including position Xk, angle 6, width Ax are extracted. Finally, the influence of the parameters of the fludic on the thrust force and the control torque are studied by numerical simulation.
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