Under the special configuration the airfoil rocket sled,an engineering prediction code based on the numerical flow simulation method as well as the six degrees of freedom function was used to investigate the angle of attack of missile and the relative missile-sled position in the separation process. The influence on aerodynamic moment of the missile from the ground effect as well as the aerodynamic interference between the missile and sled was studied. In the meanwhile,the influence in the center of pressure and angle of attack of missile from the presetting angle of attack,separation speed and track parameters was studied. The conclusions would point out some technical directions to optimize the missile-sled separation plan for the airfoil rocket sled.
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