Sidejet aerodynamic interaction effects of the missile

The side thruster is a highly responsive means for attitude control of miss iles. The sidejet force is influenced by the interaction of the sidejet wit h the external airflow. The sidejet aerodynamic interaction effects were an alyzed from following two viewpoints: 1) the pressure field in the vicinity of the sidejet and 2) the Force acting on the missile. Technical data of s idejet aerodynamic interaction effects were obtained by means of Right test s of missiles that were equipped with four impulse side thrusters that were small-size, rapidly burning solid-propellant rocket motors. The data agree with computational fluid dynamics analyses and wind-tunnel tests.