Trajectory characteristics of submunition near dispenser

Based on the aerodynamic interference wind tunnel experimental data of dispenser and submunition, the trajectory of submunition near the dispenser is calculated. Results indicate that the interference of dispenser to submunition has great influence to the submunition trajectory. So, in the near region of the dispenser, the submunition's trajectory must be calculated using its local aerodynamic characteristic data including the interference of dispenser. The initial separation velocity of submunition shortens the time that submunition flies over the interference area of dispenser. The angle of attack of submunition is small in the interference area, so that the submunition-would not overturn and would not collision with the dispenser. In the near region of the dispenser, the longitudinal relative velocity of submunition to the dispenser is very small, so the rear row submunition couldn't move to the dispenser's tail fin area.